2 * Hardware driver for DAQ-STC based boards
4 * COMEDI - Linux Control and Measurement Device Interface
5 * Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org>
6 * Copyright (C) 2002-2006 Frank Mori Hess <fmhess@users.sourceforge.net>
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.
20 * This file is meant to be included by another file, e.g.,
21 * ni_atmio.c or ni_pcimio.c.
23 * Interrupt support originally added by Truxton Fulton <trux@truxton.com>
25 * References (ftp://ftp.natinst.com/support/manuals):
26 * 340747b.pdf AT-MIO E series Register Level Programmer Manual
27 * 341079b.pdf PCI E Series RLPM
28 * 340934b.pdf DAQ-STC reference manual
30 * 67xx and 611x registers (ftp://ftp.ni.com/support/daq/mhddk/documentation/)
34 * Other possibly relevant info:
35 * 320517c.pdf User manual (obsolete)
36 * 320517f.pdf User manual (new)
38 * 320906c.pdf maximum signal ratings
39 * 321066a.pdf about 16x
40 * 321791a.pdf discontinuation of at-mio-16e-10 rev. c
41 * 321808a.pdf about at-mio-16e-10 rev P
42 * 321837a.pdf discontinuation of at-mio-16de-10 rev d
43 * 321838a.pdf about at-mio-16de-10 rev N
46 * - the interrupt routine needs to be cleaned up
48 * 2006-02-07: S-Series PCI-6143: Support has been added but is not
49 * fully tested as yet. Terry Barnaby, BEAM Ltd.
52 #include <linux/interrupt.h>
53 #include <linux/sched.h>
54 #include <linux/delay.h>
59 #define NI_TIMEOUT 1000
61 /* Note: this table must match the ai_gain_* definitions */
62 static const short ni_gainlkup
[][16] = {
63 [ai_gain_16
] = {0, 1, 2, 3, 4, 5, 6, 7,
64 0x100, 0x101, 0x102, 0x103, 0x104, 0x105, 0x106, 0x107},
65 [ai_gain_8
] = {1, 2, 4, 7, 0x101, 0x102, 0x104, 0x107},
66 [ai_gain_14
] = {1, 2, 3, 4, 5, 6, 7,
67 0x101, 0x102, 0x103, 0x104, 0x105, 0x106, 0x107},
68 [ai_gain_4
] = {0, 1, 4, 7},
69 [ai_gain_611x
] = {0x00a, 0x00b, 0x001, 0x002,
70 0x003, 0x004, 0x005, 0x006},
71 [ai_gain_622x
] = {0, 1, 4, 5},
72 [ai_gain_628x
] = {1, 2, 3, 4, 5, 6, 7},
73 [ai_gain_6143
] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
76 static const struct comedi_lrange range_ni_E_ai
= {
97 static const struct comedi_lrange range_ni_E_ai_limited
= {
110 static const struct comedi_lrange range_ni_E_ai_limited14
= {
129 static const struct comedi_lrange range_ni_E_ai_bipolar4
= {
138 static const struct comedi_lrange range_ni_E_ai_611x
= {
151 static const struct comedi_lrange range_ni_M_ai_622x
= {
160 static const struct comedi_lrange range_ni_M_ai_628x
= {
172 static const struct comedi_lrange range_ni_E_ao_ext
= {
181 static const struct comedi_lrange
*const ni_range_lkup
[] = {
182 [ai_gain_16
] = &range_ni_E_ai
,
183 [ai_gain_8
] = &range_ni_E_ai_limited
,
184 [ai_gain_14
] = &range_ni_E_ai_limited14
,
185 [ai_gain_4
] = &range_ni_E_ai_bipolar4
,
186 [ai_gain_611x
] = &range_ni_E_ai_611x
,
187 [ai_gain_622x
] = &range_ni_M_ai_622x
,
188 [ai_gain_628x
] = &range_ni_M_ai_628x
,
189 [ai_gain_6143
] = &range_bipolar5
194 AIMODE_HALF_FULL
= 1,
199 enum ni_common_subdevices
{
205 NI_CALIBRATION_SUBDEV
,
208 NI_CS5529_CALIBRATION_SUBDEV
,
217 #define NI_GPCT_SUBDEV(x) (NI_GPCT0_SUBDEV + (x))
219 enum timebase_nanoseconds
{
221 TIMEBASE_2_NS
= 10000
224 #define SERIAL_DISABLED 0
225 #define SERIAL_600NS 600
226 #define SERIAL_1_2US 1200
227 #define SERIAL_10US 10000
229 static const int num_adc_stages_611x
= 3;
231 static void ni_writel(struct comedi_device
*dev
, unsigned int data
, int reg
)
234 writel(data
, dev
->mmio
+ reg
);
236 outl(data
, dev
->iobase
+ reg
);
239 static void ni_writew(struct comedi_device
*dev
, unsigned int data
, int reg
)
242 writew(data
, dev
->mmio
+ reg
);
244 outw(data
, dev
->iobase
+ reg
);
247 static void ni_writeb(struct comedi_device
*dev
, unsigned int data
, int reg
)
250 writeb(data
, dev
->mmio
+ reg
);
252 outb(data
, dev
->iobase
+ reg
);
255 static unsigned int ni_readl(struct comedi_device
*dev
, int reg
)
258 return readl(dev
->mmio
+ reg
);
260 return inl(dev
->iobase
+ reg
);
263 static unsigned int ni_readw(struct comedi_device
*dev
, int reg
)
266 return readw(dev
->mmio
+ reg
);
268 return inw(dev
->iobase
+ reg
);
271 static unsigned int ni_readb(struct comedi_device
*dev
, int reg
)
274 return readb(dev
->mmio
+ reg
);
276 return inb(dev
->iobase
+ reg
);
280 * We automatically take advantage of STC registers that can be
281 * read/written directly in the I/O space of the board.
283 * The AT-MIO and DAQCard devices map the low 8 STC registers to
286 * Most PCIMIO devices also map the low 8 STC registers but the
287 * 611x devices map the read registers to iobase+(addr-1)*2.
288 * For now non-windowed STC access is disabled if a PCIMIO device
289 * is detected (devpriv->mite has been initialized).
291 * The M series devices do not used windowed registers for the
292 * STC registers. The functions below handle the mapping of the
293 * windowed STC registers to the m series register offsets.
297 unsigned int mio_reg
;
301 static const struct mio_regmap m_series_stc_write_regmap
[] = {
302 [NISTC_INTA_ACK_REG
] = { 0x104, 2 },
303 [NISTC_INTB_ACK_REG
] = { 0x106, 2 },
304 [NISTC_AI_CMD2_REG
] = { 0x108, 2 },
305 [NISTC_AO_CMD2_REG
] = { 0x10a, 2 },
306 [NISTC_G0_CMD_REG
] = { 0x10c, 2 },
307 [NISTC_G1_CMD_REG
] = { 0x10e, 2 },
308 [NISTC_AI_CMD1_REG
] = { 0x110, 2 },
309 [NISTC_AO_CMD1_REG
] = { 0x112, 2 },
311 * NISTC_DIO_OUT_REG maps to:
312 * { NI_M_DIO_REG, 4 } and { NI_M_SCXI_SER_DO_REG, 1 }
314 [NISTC_DIO_OUT_REG
] = { 0, 0 }, /* DOES NOT MAP CLEANLY */
315 [NISTC_DIO_CTRL_REG
] = { 0, 0 }, /* DOES NOT MAP CLEANLY */
316 [NISTC_AI_MODE1_REG
] = { 0x118, 2 },
317 [NISTC_AI_MODE2_REG
] = { 0x11a, 2 },
318 [NISTC_AI_SI_LOADA_REG
] = { 0x11c, 4 },
319 [NISTC_AI_SI_LOADB_REG
] = { 0x120, 4 },
320 [NISTC_AI_SC_LOADA_REG
] = { 0x124, 4 },
321 [NISTC_AI_SC_LOADB_REG
] = { 0x128, 4 },
322 [NISTC_AI_SI2_LOADA_REG
] = { 0x12c, 4 },
323 [NISTC_AI_SI2_LOADB_REG
] = { 0x130, 4 },
324 [NISTC_G0_MODE_REG
] = { 0x134, 2 },
325 [NISTC_G1_MODE_REG
] = { 0x136, 2 },
326 [NISTC_G0_LOADA_REG
] = { 0x138, 4 },
327 [NISTC_G0_LOADB_REG
] = { 0x13c, 4 },
328 [NISTC_G1_LOADA_REG
] = { 0x140, 4 },
329 [NISTC_G1_LOADB_REG
] = { 0x144, 4 },
330 [NISTC_G0_INPUT_SEL_REG
] = { 0x148, 2 },
331 [NISTC_G1_INPUT_SEL_REG
] = { 0x14a, 2 },
332 [NISTC_AO_MODE1_REG
] = { 0x14c, 2 },
333 [NISTC_AO_MODE2_REG
] = { 0x14e, 2 },
334 [NISTC_AO_UI_LOADA_REG
] = { 0x150, 4 },
335 [NISTC_AO_UI_LOADB_REG
] = { 0x154, 4 },
336 [NISTC_AO_BC_LOADA_REG
] = { 0x158, 4 },
337 [NISTC_AO_BC_LOADB_REG
] = { 0x15c, 4 },
338 [NISTC_AO_UC_LOADA_REG
] = { 0x160, 4 },
339 [NISTC_AO_UC_LOADB_REG
] = { 0x164, 4 },
340 [NISTC_CLK_FOUT_REG
] = { 0x170, 2 },
341 [NISTC_IO_BIDIR_PIN_REG
] = { 0x172, 2 },
342 [NISTC_RTSI_TRIG_DIR_REG
] = { 0x174, 2 },
343 [NISTC_INT_CTRL_REG
] = { 0x176, 2 },
344 [NISTC_AI_OUT_CTRL_REG
] = { 0x178, 2 },
345 [NISTC_ATRIG_ETC_REG
] = { 0x17a, 2 },
346 [NISTC_AI_START_STOP_REG
] = { 0x17c, 2 },
347 [NISTC_AI_TRIG_SEL_REG
] = { 0x17e, 2 },
348 [NISTC_AI_DIV_LOADA_REG
] = { 0x180, 4 },
349 [NISTC_AO_START_SEL_REG
] = { 0x184, 2 },
350 [NISTC_AO_TRIG_SEL_REG
] = { 0x186, 2 },
351 [NISTC_G0_AUTOINC_REG
] = { 0x188, 2 },
352 [NISTC_G1_AUTOINC_REG
] = { 0x18a, 2 },
353 [NISTC_AO_MODE3_REG
] = { 0x18c, 2 },
354 [NISTC_RESET_REG
] = { 0x190, 2 },
355 [NISTC_INTA_ENA_REG
] = { 0x192, 2 },
356 [NISTC_INTA2_ENA_REG
] = { 0, 0 }, /* E-Series only */
357 [NISTC_INTB_ENA_REG
] = { 0x196, 2 },
358 [NISTC_INTB2_ENA_REG
] = { 0, 0 }, /* E-Series only */
359 [NISTC_AI_PERSONAL_REG
] = { 0x19a, 2 },
360 [NISTC_AO_PERSONAL_REG
] = { 0x19c, 2 },
361 [NISTC_RTSI_TRIGA_OUT_REG
] = { 0x19e, 2 },
362 [NISTC_RTSI_TRIGB_OUT_REG
] = { 0x1a0, 2 },
363 [NISTC_RTSI_BOARD_REG
] = { 0, 0 }, /* Unknown */
364 [NISTC_CFG_MEM_CLR_REG
] = { 0x1a4, 2 },
365 [NISTC_ADC_FIFO_CLR_REG
] = { 0x1a6, 2 },
366 [NISTC_DAC_FIFO_CLR_REG
] = { 0x1a8, 2 },
367 [NISTC_AO_OUT_CTRL_REG
] = { 0x1ac, 2 },
368 [NISTC_AI_MODE3_REG
] = { 0x1ae, 2 },
371 static void m_series_stc_write(struct comedi_device
*dev
,
372 unsigned int data
, unsigned int reg
)
374 const struct mio_regmap
*regmap
;
376 if (reg
< ARRAY_SIZE(m_series_stc_write_regmap
)) {
377 regmap
= &m_series_stc_write_regmap
[reg
];
379 dev_warn(dev
->class_dev
, "%s: unhandled register=0x%x\n",
384 switch (regmap
->size
) {
386 ni_writel(dev
, data
, regmap
->mio_reg
);
389 ni_writew(dev
, data
, regmap
->mio_reg
);
392 dev_warn(dev
->class_dev
, "%s: unmapped register=0x%x\n",
398 static const struct mio_regmap m_series_stc_read_regmap
[] = {
399 [NISTC_AI_STATUS1_REG
] = { 0x104, 2 },
400 [NISTC_AO_STATUS1_REG
] = { 0x106, 2 },
401 [NISTC_G01_STATUS_REG
] = { 0x108, 2 },
402 [NISTC_AI_STATUS2_REG
] = { 0, 0 }, /* Unknown */
403 [NISTC_AO_STATUS2_REG
] = { 0x10c, 2 },
404 [NISTC_DIO_IN_REG
] = { 0, 0 }, /* Unknown */
405 [NISTC_G0_HW_SAVE_REG
] = { 0x110, 4 },
406 [NISTC_G1_HW_SAVE_REG
] = { 0x114, 4 },
407 [NISTC_G0_SAVE_REG
] = { 0x118, 4 },
408 [NISTC_G1_SAVE_REG
] = { 0x11c, 4 },
409 [NISTC_AO_UI_SAVE_REG
] = { 0x120, 4 },
410 [NISTC_AO_BC_SAVE_REG
] = { 0x124, 4 },
411 [NISTC_AO_UC_SAVE_REG
] = { 0x128, 4 },
412 [NISTC_STATUS1_REG
] = { 0x136, 2 },
413 [NISTC_DIO_SERIAL_IN_REG
] = { 0x009, 1 },
414 [NISTC_STATUS2_REG
] = { 0x13a, 2 },
415 [NISTC_AI_SI_SAVE_REG
] = { 0x180, 4 },
416 [NISTC_AI_SC_SAVE_REG
] = { 0x184, 4 },
419 static unsigned int m_series_stc_read(struct comedi_device
*dev
,
422 const struct mio_regmap
*regmap
;
424 if (reg
< ARRAY_SIZE(m_series_stc_read_regmap
)) {
425 regmap
= &m_series_stc_read_regmap
[reg
];
427 dev_warn(dev
->class_dev
, "%s: unhandled register=0x%x\n",
432 switch (regmap
->size
) {
434 return ni_readl(dev
, regmap
->mio_reg
);
436 return ni_readw(dev
, regmap
->mio_reg
);
438 return ni_readb(dev
, regmap
->mio_reg
);
440 dev_warn(dev
->class_dev
, "%s: unmapped register=0x%x\n",
446 static void ni_stc_writew(struct comedi_device
*dev
,
447 unsigned int data
, int reg
)
449 struct ni_private
*devpriv
= dev
->private;
452 if (devpriv
->is_m_series
) {
453 m_series_stc_write(dev
, data
, reg
);
455 spin_lock_irqsave(&devpriv
->window_lock
, flags
);
456 if (!devpriv
->mite
&& reg
< 8) {
457 ni_writew(dev
, data
, reg
* 2);
459 ni_writew(dev
, reg
, NI_E_STC_WINDOW_ADDR_REG
);
460 ni_writew(dev
, data
, NI_E_STC_WINDOW_DATA_REG
);
462 spin_unlock_irqrestore(&devpriv
->window_lock
, flags
);
466 static void ni_stc_writel(struct comedi_device
*dev
,
467 unsigned int data
, int reg
)
469 struct ni_private
*devpriv
= dev
->private;
471 if (devpriv
->is_m_series
) {
472 m_series_stc_write(dev
, data
, reg
);
474 ni_stc_writew(dev
, data
>> 16, reg
);
475 ni_stc_writew(dev
, data
& 0xffff, reg
+ 1);
479 static unsigned int ni_stc_readw(struct comedi_device
*dev
, int reg
)
481 struct ni_private
*devpriv
= dev
->private;
485 if (devpriv
->is_m_series
) {
486 val
= m_series_stc_read(dev
, reg
);
488 spin_lock_irqsave(&devpriv
->window_lock
, flags
);
489 if (!devpriv
->mite
&& reg
< 8) {
490 val
= ni_readw(dev
, reg
* 2);
492 ni_writew(dev
, reg
, NI_E_STC_WINDOW_ADDR_REG
);
493 val
= ni_readw(dev
, NI_E_STC_WINDOW_DATA_REG
);
495 spin_unlock_irqrestore(&devpriv
->window_lock
, flags
);
500 static unsigned int ni_stc_readl(struct comedi_device
*dev
, int reg
)
502 struct ni_private
*devpriv
= dev
->private;
505 if (devpriv
->is_m_series
) {
506 val
= m_series_stc_read(dev
, reg
);
508 val
= ni_stc_readw(dev
, reg
) << 16;
509 val
|= ni_stc_readw(dev
, reg
+ 1);
514 static inline void ni_set_bitfield(struct comedi_device
*dev
, int reg
,
515 unsigned int bit_mask
,
516 unsigned int bit_values
)
518 struct ni_private
*devpriv
= dev
->private;
521 spin_lock_irqsave(&devpriv
->soft_reg_copy_lock
, flags
);
523 case NISTC_INTA_ENA_REG
:
524 devpriv
->int_a_enable_reg
&= ~bit_mask
;
525 devpriv
->int_a_enable_reg
|= bit_values
& bit_mask
;
526 ni_stc_writew(dev
, devpriv
->int_a_enable_reg
, reg
);
528 case NISTC_INTB_ENA_REG
:
529 devpriv
->int_b_enable_reg
&= ~bit_mask
;
530 devpriv
->int_b_enable_reg
|= bit_values
& bit_mask
;
531 ni_stc_writew(dev
, devpriv
->int_b_enable_reg
, reg
);
533 case NISTC_IO_BIDIR_PIN_REG
:
534 devpriv
->io_bidirection_pin_reg
&= ~bit_mask
;
535 devpriv
->io_bidirection_pin_reg
|= bit_values
& bit_mask
;
536 ni_stc_writew(dev
, devpriv
->io_bidirection_pin_reg
, reg
);
538 case NI_E_DMA_AI_AO_SEL_REG
:
539 devpriv
->ai_ao_select_reg
&= ~bit_mask
;
540 devpriv
->ai_ao_select_reg
|= bit_values
& bit_mask
;
541 ni_writeb(dev
, devpriv
->ai_ao_select_reg
, reg
);
543 case NI_E_DMA_G0_G1_SEL_REG
:
544 devpriv
->g0_g1_select_reg
&= ~bit_mask
;
545 devpriv
->g0_g1_select_reg
|= bit_values
& bit_mask
;
546 ni_writeb(dev
, devpriv
->g0_g1_select_reg
, reg
);
548 case NI_M_CDIO_DMA_SEL_REG
:
549 devpriv
->cdio_dma_select_reg
&= ~bit_mask
;
550 devpriv
->cdio_dma_select_reg
|= bit_values
& bit_mask
;
551 ni_writeb(dev
, devpriv
->cdio_dma_select_reg
, reg
);
554 dev_err(dev
->class_dev
, "called with invalid register %d\n",
559 spin_unlock_irqrestore(&devpriv
->soft_reg_copy_lock
, flags
);
564 /* selects the MITE channel to use for DMA */
565 #define NI_STC_DMA_CHAN_SEL(x) (((x) < 4) ? BIT(x) : \
567 ((x) == 5) ? 0x5 : 0x0)
569 /* DMA channel setup */
570 static int ni_request_ai_mite_channel(struct comedi_device
*dev
)
572 struct ni_private
*devpriv
= dev
->private;
573 struct mite_channel
*mite_chan
;
577 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
578 mite_chan
= mite_request_channel(devpriv
->mite
, devpriv
->ai_mite_ring
);
580 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
581 dev_err(dev
->class_dev
,
582 "failed to reserve mite dma channel for analog input\n");
585 mite_chan
->dir
= COMEDI_INPUT
;
586 devpriv
->ai_mite_chan
= mite_chan
;
588 bits
= NI_STC_DMA_CHAN_SEL(mite_chan
->channel
);
589 ni_set_bitfield(dev
, NI_E_DMA_AI_AO_SEL_REG
,
590 NI_E_DMA_AI_SEL_MASK
, NI_E_DMA_AI_SEL(bits
));
592 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
596 static int ni_request_ao_mite_channel(struct comedi_device
*dev
)
598 struct ni_private
*devpriv
= dev
->private;
599 struct mite_channel
*mite_chan
;
603 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
604 mite_chan
= mite_request_channel(devpriv
->mite
, devpriv
->ao_mite_ring
);
606 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
607 dev_err(dev
->class_dev
,
608 "failed to reserve mite dma channel for analog outut\n");
611 mite_chan
->dir
= COMEDI_OUTPUT
;
612 devpriv
->ao_mite_chan
= mite_chan
;
614 bits
= NI_STC_DMA_CHAN_SEL(mite_chan
->channel
);
615 ni_set_bitfield(dev
, NI_E_DMA_AI_AO_SEL_REG
,
616 NI_E_DMA_AO_SEL_MASK
, NI_E_DMA_AO_SEL(bits
));
618 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
622 static int ni_request_gpct_mite_channel(struct comedi_device
*dev
,
623 unsigned int gpct_index
,
624 enum comedi_io_direction direction
)
626 struct ni_private
*devpriv
= dev
->private;
627 struct ni_gpct
*counter
= &devpriv
->counter_dev
->counters
[gpct_index
];
628 struct mite_channel
*mite_chan
;
632 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
633 mite_chan
= mite_request_channel(devpriv
->mite
,
634 devpriv
->gpct_mite_ring
[gpct_index
]);
636 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
637 dev_err(dev
->class_dev
,
638 "failed to reserve mite dma channel for counter\n");
641 mite_chan
->dir
= direction
;
642 ni_tio_set_mite_channel(counter
, mite_chan
);
644 bits
= NI_STC_DMA_CHAN_SEL(mite_chan
->channel
);
645 ni_set_bitfield(dev
, NI_E_DMA_G0_G1_SEL_REG
,
646 NI_E_DMA_G0_G1_SEL_MASK(gpct_index
),
647 NI_E_DMA_G0_G1_SEL(gpct_index
, bits
));
649 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
653 static int ni_request_cdo_mite_channel(struct comedi_device
*dev
)
655 struct ni_private
*devpriv
= dev
->private;
656 struct mite_channel
*mite_chan
;
660 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
661 mite_chan
= mite_request_channel(devpriv
->mite
, devpriv
->cdo_mite_ring
);
663 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
664 dev_err(dev
->class_dev
,
665 "failed to reserve mite dma channel for correlated digital output\n");
668 mite_chan
->dir
= COMEDI_OUTPUT
;
669 devpriv
->cdo_mite_chan
= mite_chan
;
672 * XXX just guessing NI_STC_DMA_CHAN_SEL()
673 * returns the right bits, under the assumption the cdio dma
674 * selection works just like ai/ao/gpct.
675 * Definitely works for dma channels 0 and 1.
677 bits
= NI_STC_DMA_CHAN_SEL(mite_chan
->channel
);
678 ni_set_bitfield(dev
, NI_M_CDIO_DMA_SEL_REG
,
679 NI_M_CDIO_DMA_SEL_CDO_MASK
,
680 NI_M_CDIO_DMA_SEL_CDO(bits
));
682 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
687 static void ni_release_ai_mite_channel(struct comedi_device
*dev
)
690 struct ni_private
*devpriv
= dev
->private;
693 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
694 if (devpriv
->ai_mite_chan
) {
695 ni_set_bitfield(dev
, NI_E_DMA_AI_AO_SEL_REG
,
696 NI_E_DMA_AI_SEL_MASK
, 0);
697 mite_release_channel(devpriv
->ai_mite_chan
);
698 devpriv
->ai_mite_chan
= NULL
;
700 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
704 static void ni_release_ao_mite_channel(struct comedi_device
*dev
)
707 struct ni_private
*devpriv
= dev
->private;
710 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
711 if (devpriv
->ao_mite_chan
) {
712 ni_set_bitfield(dev
, NI_E_DMA_AI_AO_SEL_REG
,
713 NI_E_DMA_AO_SEL_MASK
, 0);
714 mite_release_channel(devpriv
->ao_mite_chan
);
715 devpriv
->ao_mite_chan
= NULL
;
717 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
722 static void ni_release_gpct_mite_channel(struct comedi_device
*dev
,
723 unsigned int gpct_index
)
725 struct ni_private
*devpriv
= dev
->private;
728 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
729 if (devpriv
->counter_dev
->counters
[gpct_index
].mite_chan
) {
730 struct mite_channel
*mite_chan
=
731 devpriv
->counter_dev
->counters
[gpct_index
].mite_chan
;
733 ni_set_bitfield(dev
, NI_E_DMA_G0_G1_SEL_REG
,
734 NI_E_DMA_G0_G1_SEL_MASK(gpct_index
), 0);
735 ni_tio_set_mite_channel(&devpriv
->
736 counter_dev
->counters
[gpct_index
],
738 mite_release_channel(mite_chan
);
740 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
743 static void ni_release_cdo_mite_channel(struct comedi_device
*dev
)
745 struct ni_private
*devpriv
= dev
->private;
748 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
749 if (devpriv
->cdo_mite_chan
) {
750 ni_set_bitfield(dev
, NI_M_CDIO_DMA_SEL_REG
,
751 NI_M_CDIO_DMA_SEL_CDO_MASK
, 0);
752 mite_release_channel(devpriv
->cdo_mite_chan
);
753 devpriv
->cdo_mite_chan
= NULL
;
755 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
758 static void ni_e_series_enable_second_irq(struct comedi_device
*dev
,
759 unsigned int gpct_index
, short enable
)
761 struct ni_private
*devpriv
= dev
->private;
762 unsigned int val
= 0;
765 if (devpriv
->is_m_series
|| gpct_index
> 1)
769 * e-series boards use the second irq signals to generate
770 * dma requests for their counters
772 if (gpct_index
== 0) {
773 reg
= NISTC_INTA2_ENA_REG
;
775 val
= NISTC_INTA_ENA_G0_GATE
;
777 reg
= NISTC_INTB2_ENA_REG
;
779 val
= NISTC_INTB_ENA_G1_GATE
;
781 ni_stc_writew(dev
, val
, reg
);
785 static void ni_clear_ai_fifo(struct comedi_device
*dev
)
787 struct ni_private
*devpriv
= dev
->private;
788 static const int timeout
= 10000;
791 if (devpriv
->is_6143
) {
792 /* Flush the 6143 data FIFO */
793 ni_writel(dev
, 0x10, NI6143_AI_FIFO_CTRL_REG
);
794 ni_writel(dev
, 0x00, NI6143_AI_FIFO_CTRL_REG
);
795 /* Wait for complete */
796 for (i
= 0; i
< timeout
; i
++) {
797 if (!(ni_readl(dev
, NI6143_AI_FIFO_STATUS_REG
) & 0x10))
802 dev_err(dev
->class_dev
, "FIFO flush timeout\n");
804 ni_stc_writew(dev
, 1, NISTC_ADC_FIFO_CLR_REG
);
805 if (devpriv
->is_625x
) {
806 ni_writeb(dev
, 0, NI_M_STATIC_AI_CTRL_REG(0));
807 ni_writeb(dev
, 1, NI_M_STATIC_AI_CTRL_REG(0));
810 * The NI example code does 3 convert pulses for 625x
811 * boards, But that appears to be wrong in practice.
813 ni_stc_writew(dev
, NISTC_AI_CMD1_CONVERT_PULSE
,
815 ni_stc_writew(dev
, NISTC_AI_CMD1_CONVERT_PULSE
,
817 ni_stc_writew(dev
, NISTC_AI_CMD1_CONVERT_PULSE
,
824 static inline void ni_ao_win_outw(struct comedi_device
*dev
,
825 unsigned int data
, int addr
)
827 struct ni_private
*devpriv
= dev
->private;
830 spin_lock_irqsave(&devpriv
->window_lock
, flags
);
831 ni_writew(dev
, addr
, NI611X_AO_WINDOW_ADDR_REG
);
832 ni_writew(dev
, data
, NI611X_AO_WINDOW_DATA_REG
);
833 spin_unlock_irqrestore(&devpriv
->window_lock
, flags
);
836 static inline void ni_ao_win_outl(struct comedi_device
*dev
,
837 unsigned int data
, int addr
)
839 struct ni_private
*devpriv
= dev
->private;
842 spin_lock_irqsave(&devpriv
->window_lock
, flags
);
843 ni_writew(dev
, addr
, NI611X_AO_WINDOW_ADDR_REG
);
844 ni_writel(dev
, data
, NI611X_AO_WINDOW_DATA_REG
);
845 spin_unlock_irqrestore(&devpriv
->window_lock
, flags
);
848 static inline unsigned short ni_ao_win_inw(struct comedi_device
*dev
, int addr
)
850 struct ni_private
*devpriv
= dev
->private;
854 spin_lock_irqsave(&devpriv
->window_lock
, flags
);
855 ni_writew(dev
, addr
, NI611X_AO_WINDOW_ADDR_REG
);
856 data
= ni_readw(dev
, NI611X_AO_WINDOW_DATA_REG
);
857 spin_unlock_irqrestore(&devpriv
->window_lock
, flags
);
862 * ni_set_bits( ) allows different parts of the ni_mio_common driver to
863 * share registers (such as Interrupt_A_Register) without interfering with
866 * NOTE: the switch/case statements are optimized out for a constant argument
867 * so this is actually quite fast--- If you must wrap another function around
868 * this make it inline to avoid a large speed penalty.
870 * value should only be 1 or 0.
872 static inline void ni_set_bits(struct comedi_device
*dev
, int reg
,
873 unsigned int bits
, unsigned int value
)
875 unsigned int bit_values
;
881 ni_set_bitfield(dev
, reg
, bits
, bit_values
);
885 static void ni_sync_ai_dma(struct comedi_device
*dev
)
887 struct ni_private
*devpriv
= dev
->private;
888 struct comedi_subdevice
*s
= dev
->read_subdev
;
891 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
892 if (devpriv
->ai_mite_chan
)
893 mite_sync_dma(devpriv
->ai_mite_chan
, s
);
894 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
897 static int ni_ai_drain_dma(struct comedi_device
*dev
)
899 struct ni_private
*devpriv
= dev
->private;
901 static const int timeout
= 10000;
905 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
906 if (devpriv
->ai_mite_chan
) {
907 for (i
= 0; i
< timeout
; i
++) {
908 if ((ni_stc_readw(dev
, NISTC_AI_STATUS1_REG
) &
909 NISTC_AI_STATUS1_FIFO_E
) &&
910 mite_bytes_in_transit(devpriv
->ai_mite_chan
) == 0)
915 dev_err(dev
->class_dev
, "timed out\n");
916 dev_err(dev
->class_dev
,
917 "mite_bytes_in_transit=%i, AI_Status1_Register=0x%x\n",
918 mite_bytes_in_transit(devpriv
->ai_mite_chan
),
919 ni_stc_readw(dev
, NISTC_AI_STATUS1_REG
));
923 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
930 static int ni_ao_wait_for_dma_load(struct comedi_device
*dev
)
932 static const int timeout
= 10000;
935 for (i
= 0; i
< timeout
; i
++) {
936 unsigned short b_status
;
938 b_status
= ni_stc_readw(dev
, NISTC_AO_STATUS1_REG
);
939 if (b_status
& NISTC_AO_STATUS1_FIFO_HF
)
942 * If we poll too often, the pci bus activity seems
943 * to slow the dma transfer down.
945 usleep_range(10, 100);
948 dev_err(dev
->class_dev
, "timed out waiting for dma load\n");
957 static void ni_ao_fifo_load(struct comedi_device
*dev
,
958 struct comedi_subdevice
*s
, int n
)
960 struct ni_private
*devpriv
= dev
->private;
963 unsigned int packed_data
;
965 for (i
= 0; i
< n
; i
++) {
966 comedi_buf_read_samples(s
, &d
, 1);
968 if (devpriv
->is_6xxx
) {
969 packed_data
= d
& 0xffff;
970 /* 6711 only has 16 bit wide ao fifo */
971 if (!devpriv
->is_6711
) {
972 comedi_buf_read_samples(s
, &d
, 1);
974 packed_data
|= (d
<< 16) & 0xffff0000;
976 ni_writel(dev
, packed_data
, NI611X_AO_FIFO_DATA_REG
);
978 ni_writew(dev
, d
, NI_E_AO_FIFO_DATA_REG
);
984 * There's a small problem if the FIFO gets really low and we
985 * don't have the data to fill it. Basically, if after we fill
986 * the FIFO with all the data available, the FIFO is _still_
987 * less than half full, we never clear the interrupt. If the
988 * IRQ is in edge mode, we never get another interrupt, because
989 * this one wasn't cleared. If in level mode, we get flooded
990 * with interrupts that we can't fulfill, because nothing ever
991 * gets put into the buffer.
993 * This kind of situation is recoverable, but it is easier to
994 * just pretend we had a FIFO underrun, since there is a good
995 * chance it will happen anyway. This is _not_ the case for
996 * RT code, as RT code might purposely be running close to the
997 * metal. Needs to be fixed eventually.
999 static int ni_ao_fifo_half_empty(struct comedi_device
*dev
,
1000 struct comedi_subdevice
*s
)
1002 const struct ni_board_struct
*board
= dev
->board_ptr
;
1003 unsigned int nbytes
;
1004 unsigned int nsamples
;
1006 nbytes
= comedi_buf_read_n_available(s
);
1008 s
->async
->events
|= COMEDI_CB_OVERFLOW
;
1012 nsamples
= comedi_bytes_to_samples(s
, nbytes
);
1013 if (nsamples
> board
->ao_fifo_depth
/ 2)
1014 nsamples
= board
->ao_fifo_depth
/ 2;
1016 ni_ao_fifo_load(dev
, s
, nsamples
);
1021 static int ni_ao_prep_fifo(struct comedi_device
*dev
,
1022 struct comedi_subdevice
*s
)
1024 const struct ni_board_struct
*board
= dev
->board_ptr
;
1025 struct ni_private
*devpriv
= dev
->private;
1026 unsigned int nbytes
;
1027 unsigned int nsamples
;
1030 ni_stc_writew(dev
, 1, NISTC_DAC_FIFO_CLR_REG
);
1031 if (devpriv
->is_6xxx
)
1032 ni_ao_win_outl(dev
, 0x6, NI611X_AO_FIFO_OFFSET_LOAD_REG
);
1034 /* load some data */
1035 nbytes
= comedi_buf_read_n_available(s
);
1039 nsamples
= comedi_bytes_to_samples(s
, nbytes
);
1040 if (nsamples
> board
->ao_fifo_depth
)
1041 nsamples
= board
->ao_fifo_depth
;
1043 ni_ao_fifo_load(dev
, s
, nsamples
);
1048 static void ni_ai_fifo_read(struct comedi_device
*dev
,
1049 struct comedi_subdevice
*s
, int n
)
1051 struct ni_private
*devpriv
= dev
->private;
1052 struct comedi_async
*async
= s
->async
;
1054 unsigned short data
;
1057 if (devpriv
->is_611x
) {
1058 for (i
= 0; i
< n
/ 2; i
++) {
1059 dl
= ni_readl(dev
, NI611X_AI_FIFO_DATA_REG
);
1060 /* This may get the hi/lo data in the wrong order */
1061 data
= (dl
>> 16) & 0xffff;
1062 comedi_buf_write_samples(s
, &data
, 1);
1064 comedi_buf_write_samples(s
, &data
, 1);
1066 /* Check if there's a single sample stuck in the FIFO */
1068 dl
= ni_readl(dev
, NI611X_AI_FIFO_DATA_REG
);
1070 comedi_buf_write_samples(s
, &data
, 1);
1072 } else if (devpriv
->is_6143
) {
1074 * This just reads the FIFO assuming the data is present,
1075 * no checks on the FIFO status are performed.
1077 for (i
= 0; i
< n
/ 2; i
++) {
1078 dl
= ni_readl(dev
, NI6143_AI_FIFO_DATA_REG
);
1080 data
= (dl
>> 16) & 0xffff;
1081 comedi_buf_write_samples(s
, &data
, 1);
1083 comedi_buf_write_samples(s
, &data
, 1);
1086 /* Assume there is a single sample stuck in the FIFO */
1087 /* Get stranded sample into FIFO */
1088 ni_writel(dev
, 0x01, NI6143_AI_FIFO_CTRL_REG
);
1089 dl
= ni_readl(dev
, NI6143_AI_FIFO_DATA_REG
);
1090 data
= (dl
>> 16) & 0xffff;
1091 comedi_buf_write_samples(s
, &data
, 1);
1094 if (n
> ARRAY_SIZE(devpriv
->ai_fifo_buffer
)) {
1095 dev_err(dev
->class_dev
,
1096 "bug! ai_fifo_buffer too small\n");
1097 async
->events
|= COMEDI_CB_ERROR
;
1100 for (i
= 0; i
< n
; i
++) {
1101 devpriv
->ai_fifo_buffer
[i
] =
1102 ni_readw(dev
, NI_E_AI_FIFO_DATA_REG
);
1104 comedi_buf_write_samples(s
, devpriv
->ai_fifo_buffer
, n
);
1108 static void ni_handle_fifo_half_full(struct comedi_device
*dev
)
1110 const struct ni_board_struct
*board
= dev
->board_ptr
;
1111 struct comedi_subdevice
*s
= dev
->read_subdev
;
1114 n
= board
->ai_fifo_depth
/ 2;
1116 ni_ai_fifo_read(dev
, s
, n
);
1120 /* Empties the AI fifo */
1121 static void ni_handle_fifo_dregs(struct comedi_device
*dev
)
1123 struct ni_private
*devpriv
= dev
->private;
1124 struct comedi_subdevice
*s
= dev
->read_subdev
;
1126 unsigned short data
;
1129 if (devpriv
->is_611x
) {
1130 while ((ni_stc_readw(dev
, NISTC_AI_STATUS1_REG
) &
1131 NISTC_AI_STATUS1_FIFO_E
) == 0) {
1132 dl
= ni_readl(dev
, NI611X_AI_FIFO_DATA_REG
);
1134 /* This may get the hi/lo data in the wrong order */
1136 comedi_buf_write_samples(s
, &data
, 1);
1138 comedi_buf_write_samples(s
, &data
, 1);
1140 } else if (devpriv
->is_6143
) {
1142 while (ni_readl(dev
, NI6143_AI_FIFO_STATUS_REG
) & 0x04) {
1143 dl
= ni_readl(dev
, NI6143_AI_FIFO_DATA_REG
);
1145 /* This may get the hi/lo data in the wrong order */
1147 comedi_buf_write_samples(s
, &data
, 1);
1149 comedi_buf_write_samples(s
, &data
, 1);
1152 /* Check if stranded sample is present */
1153 if (ni_readl(dev
, NI6143_AI_FIFO_STATUS_REG
) & 0x01) {
1154 /* Get stranded sample into FIFO */
1155 ni_writel(dev
, 0x01, NI6143_AI_FIFO_CTRL_REG
);
1156 dl
= ni_readl(dev
, NI6143_AI_FIFO_DATA_REG
);
1157 data
= (dl
>> 16) & 0xffff;
1158 comedi_buf_write_samples(s
, &data
, 1);
1162 unsigned short fe
; /* fifo empty */
1164 fe
= ni_stc_readw(dev
, NISTC_AI_STATUS1_REG
) &
1165 NISTC_AI_STATUS1_FIFO_E
;
1168 i
< ARRAY_SIZE(devpriv
->ai_fifo_buffer
); i
++) {
1169 fe
= ni_stc_readw(dev
, NISTC_AI_STATUS1_REG
) &
1170 NISTC_AI_STATUS1_FIFO_E
;
1173 devpriv
->ai_fifo_buffer
[i
] =
1174 ni_readw(dev
, NI_E_AI_FIFO_DATA_REG
);
1176 comedi_buf_write_samples(s
, devpriv
->ai_fifo_buffer
, i
);
1181 static void get_last_sample_611x(struct comedi_device
*dev
)
1183 struct ni_private
*devpriv
= dev
->private;
1184 struct comedi_subdevice
*s
= dev
->read_subdev
;
1185 unsigned short data
;
1188 if (!devpriv
->is_611x
)
1191 /* Check if there's a single sample stuck in the FIFO */
1192 if (ni_readb(dev
, NI_E_STATUS_REG
) & 0x80) {
1193 dl
= ni_readl(dev
, NI611X_AI_FIFO_DATA_REG
);
1195 comedi_buf_write_samples(s
, &data
, 1);
1199 static void get_last_sample_6143(struct comedi_device
*dev
)
1201 struct ni_private
*devpriv
= dev
->private;
1202 struct comedi_subdevice
*s
= dev
->read_subdev
;
1203 unsigned short data
;
1206 if (!devpriv
->is_6143
)
1209 /* Check if there's a single sample stuck in the FIFO */
1210 if (ni_readl(dev
, NI6143_AI_FIFO_STATUS_REG
) & 0x01) {
1211 /* Get stranded sample into FIFO */
1212 ni_writel(dev
, 0x01, NI6143_AI_FIFO_CTRL_REG
);
1213 dl
= ni_readl(dev
, NI6143_AI_FIFO_DATA_REG
);
1215 /* This may get the hi/lo data in the wrong order */
1216 data
= (dl
>> 16) & 0xffff;
1217 comedi_buf_write_samples(s
, &data
, 1);
1221 static void shutdown_ai_command(struct comedi_device
*dev
)
1223 struct comedi_subdevice
*s
= dev
->read_subdev
;
1226 ni_ai_drain_dma(dev
);
1228 ni_handle_fifo_dregs(dev
);
1229 get_last_sample_611x(dev
);
1230 get_last_sample_6143(dev
);
1232 s
->async
->events
|= COMEDI_CB_EOA
;
1235 static void ni_handle_eos(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
1237 struct ni_private
*devpriv
= dev
->private;
1239 if (devpriv
->aimode
== AIMODE_SCAN
) {
1241 static const int timeout
= 10;
1244 for (i
= 0; i
< timeout
; i
++) {
1245 ni_sync_ai_dma(dev
);
1246 if ((s
->async
->events
& COMEDI_CB_EOS
))
1251 ni_handle_fifo_dregs(dev
);
1252 s
->async
->events
|= COMEDI_CB_EOS
;
1255 /* handle special case of single scan */
1256 if (devpriv
->ai_cmd2
& NISTC_AI_CMD2_END_ON_EOS
)
1257 shutdown_ai_command(dev
);
1260 static void handle_gpct_interrupt(struct comedi_device
*dev
,
1261 unsigned short counter_index
)
1264 struct ni_private
*devpriv
= dev
->private;
1265 struct comedi_subdevice
*s
;
1267 s
= &dev
->subdevices
[NI_GPCT_SUBDEV(counter_index
)];
1269 ni_tio_handle_interrupt(&devpriv
->counter_dev
->counters
[counter_index
],
1271 comedi_handle_events(dev
, s
);
1275 static void ack_a_interrupt(struct comedi_device
*dev
, unsigned short a_status
)
1277 unsigned short ack
= 0;
1279 if (a_status
& NISTC_AI_STATUS1_SC_TC
)
1280 ack
|= NISTC_INTA_ACK_AI_SC_TC
;
1281 if (a_status
& NISTC_AI_STATUS1_START1
)
1282 ack
|= NISTC_INTA_ACK_AI_START1
;
1283 if (a_status
& NISTC_AI_STATUS1_START
)
1284 ack
|= NISTC_INTA_ACK_AI_START
;
1285 if (a_status
& NISTC_AI_STATUS1_STOP
)
1286 ack
|= NISTC_INTA_ACK_AI_STOP
;
1288 ni_stc_writew(dev
, ack
, NISTC_INTA_ACK_REG
);
1291 static void handle_a_interrupt(struct comedi_device
*dev
,
1292 struct comedi_subdevice
*s
,
1293 unsigned short status
)
1295 struct comedi_cmd
*cmd
= &s
->async
->cmd
;
1297 /* test for all uncommon interrupt events at the same time */
1298 if (status
& (NISTC_AI_STATUS1_ERR
|
1299 NISTC_AI_STATUS1_SC_TC
| NISTC_AI_STATUS1_START1
)) {
1300 if (status
== 0xffff) {
1301 dev_err(dev
->class_dev
, "Card removed?\n");
1303 * We probably aren't even running a command now,
1304 * so it's a good idea to be careful.
1306 if (comedi_is_subdevice_running(s
))
1307 s
->async
->events
|= COMEDI_CB_ERROR
;
1310 if (status
& NISTC_AI_STATUS1_ERR
) {
1311 dev_err(dev
->class_dev
, "ai error a_status=%04x\n",
1314 shutdown_ai_command(dev
);
1316 s
->async
->events
|= COMEDI_CB_ERROR
;
1317 if (status
& NISTC_AI_STATUS1_OVER
)
1318 s
->async
->events
|= COMEDI_CB_OVERFLOW
;
1321 if (status
& NISTC_AI_STATUS1_SC_TC
) {
1322 if (cmd
->stop_src
== TRIG_COUNT
)
1323 shutdown_ai_command(dev
);
1327 if (status
& NISTC_AI_STATUS1_FIFO_HF
) {
1329 static const int timeout
= 10;
1331 * PCMCIA cards (at least 6036) seem to stop producing
1332 * interrupts if we fail to get the fifo less than half
1333 * full, so loop to be sure.
1335 for (i
= 0; i
< timeout
; ++i
) {
1336 ni_handle_fifo_half_full(dev
);
1337 if ((ni_stc_readw(dev
, NISTC_AI_STATUS1_REG
) &
1338 NISTC_AI_STATUS1_FIFO_HF
) == 0)
1342 #endif /* !PCIDMA */
1344 if (status
& NISTC_AI_STATUS1_STOP
)
1345 ni_handle_eos(dev
, s
);
1348 static void ack_b_interrupt(struct comedi_device
*dev
, unsigned short b_status
)
1350 unsigned short ack
= 0;
1352 if (b_status
& NISTC_AO_STATUS1_BC_TC
)
1353 ack
|= NISTC_INTB_ACK_AO_BC_TC
;
1354 if (b_status
& NISTC_AO_STATUS1_OVERRUN
)
1355 ack
|= NISTC_INTB_ACK_AO_ERR
;
1356 if (b_status
& NISTC_AO_STATUS1_START
)
1357 ack
|= NISTC_INTB_ACK_AO_START
;
1358 if (b_status
& NISTC_AO_STATUS1_START1
)
1359 ack
|= NISTC_INTB_ACK_AO_START1
;
1360 if (b_status
& NISTC_AO_STATUS1_UC_TC
)
1361 ack
|= NISTC_INTB_ACK_AO_UC_TC
;
1362 if (b_status
& NISTC_AO_STATUS1_UI2_TC
)
1363 ack
|= NISTC_INTB_ACK_AO_UI2_TC
;
1364 if (b_status
& NISTC_AO_STATUS1_UPDATE
)
1365 ack
|= NISTC_INTB_ACK_AO_UPDATE
;
1367 ni_stc_writew(dev
, ack
, NISTC_INTB_ACK_REG
);
1370 static void handle_b_interrupt(struct comedi_device
*dev
,
1371 struct comedi_subdevice
*s
,
1372 unsigned short b_status
)
1374 if (b_status
== 0xffff)
1376 if (b_status
& NISTC_AO_STATUS1_OVERRUN
) {
1377 dev_err(dev
->class_dev
,
1378 "AO FIFO underrun status=0x%04x status2=0x%04x\n",
1379 b_status
, ni_stc_readw(dev
, NISTC_AO_STATUS2_REG
));
1380 s
->async
->events
|= COMEDI_CB_OVERFLOW
;
1383 if (s
->async
->cmd
.stop_src
!= TRIG_NONE
&&
1384 b_status
& NISTC_AO_STATUS1_BC_TC
)
1385 s
->async
->events
|= COMEDI_CB_EOA
;
1388 if (b_status
& NISTC_AO_STATUS1_FIFO_REQ
) {
1391 ret
= ni_ao_fifo_half_empty(dev
, s
);
1393 dev_err(dev
->class_dev
, "AO buffer underrun\n");
1394 ni_set_bits(dev
, NISTC_INTB_ENA_REG
,
1395 NISTC_INTB_ENA_AO_FIFO
|
1396 NISTC_INTB_ENA_AO_ERR
, 0);
1397 s
->async
->events
|= COMEDI_CB_OVERFLOW
;
1403 static void ni_ai_munge(struct comedi_device
*dev
, struct comedi_subdevice
*s
,
1404 void *data
, unsigned int num_bytes
,
1405 unsigned int chan_index
)
1407 struct ni_private
*devpriv
= dev
->private;
1408 struct comedi_async
*async
= s
->async
;
1409 struct comedi_cmd
*cmd
= &async
->cmd
;
1410 unsigned int nsamples
= comedi_bytes_to_samples(s
, num_bytes
);
1411 unsigned short *array
= data
;
1412 unsigned int *larray
= data
;
1415 __le16
*barray
= data
;
1416 __le32
*blarray
= data
;
1419 for (i
= 0; i
< nsamples
; i
++) {
1421 if (s
->subdev_flags
& SDF_LSAMPL
)
1422 larray
[i
] = le32_to_cpu(blarray
[i
]);
1424 array
[i
] = le16_to_cpu(barray
[i
]);
1426 if (s
->subdev_flags
& SDF_LSAMPL
)
1427 larray
[i
] += devpriv
->ai_offset
[chan_index
];
1429 array
[i
] += devpriv
->ai_offset
[chan_index
];
1431 chan_index
%= cmd
->chanlist_len
;
1437 static int ni_ai_setup_MITE_dma(struct comedi_device
*dev
)
1439 struct ni_private
*devpriv
= dev
->private;
1440 struct comedi_subdevice
*s
= dev
->read_subdev
;
1442 unsigned long flags
;
1444 retval
= ni_request_ai_mite_channel(dev
);
1448 /* write alloc the entire buffer */
1449 comedi_buf_write_alloc(s
, s
->async
->prealloc_bufsz
);
1451 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
1452 if (!devpriv
->ai_mite_chan
) {
1453 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
1457 if (devpriv
->is_611x
|| devpriv
->is_6143
)
1458 mite_prep_dma(devpriv
->ai_mite_chan
, 32, 16);
1459 else if (devpriv
->is_628x
)
1460 mite_prep_dma(devpriv
->ai_mite_chan
, 32, 32);
1462 mite_prep_dma(devpriv
->ai_mite_chan
, 16, 16);
1465 mite_dma_arm(devpriv
->ai_mite_chan
);
1466 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
1471 static int ni_ao_setup_MITE_dma(struct comedi_device
*dev
)
1473 struct ni_private
*devpriv
= dev
->private;
1474 struct comedi_subdevice
*s
= dev
->write_subdev
;
1476 unsigned long flags
;
1478 retval
= ni_request_ao_mite_channel(dev
);
1482 /* read alloc the entire buffer */
1483 comedi_buf_read_alloc(s
, s
->async
->prealloc_bufsz
);
1485 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
1486 if (devpriv
->ao_mite_chan
) {
1487 if (devpriv
->is_611x
|| devpriv
->is_6713
) {
1488 mite_prep_dma(devpriv
->ao_mite_chan
, 32, 32);
1491 * Doing 32 instead of 16 bit wide transfers from
1492 * memory makes the mite do 32 bit pci transfers,
1493 * doubling pci bandwidth.
1495 mite_prep_dma(devpriv
->ao_mite_chan
, 16, 32);
1497 mite_dma_arm(devpriv
->ao_mite_chan
);
1501 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
1509 * used for both cancel ioctl and board initialization
1511 * this is pretty harsh for a cancel, but it works...
1513 static int ni_ai_reset(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
1515 struct ni_private
*devpriv
= dev
->private;
1516 unsigned int ai_personal
;
1517 unsigned int ai_out_ctrl
;
1519 ni_release_ai_mite_channel(dev
);
1520 /* ai configuration */
1521 ni_stc_writew(dev
, NISTC_RESET_AI_CFG_START
| NISTC_RESET_AI
,
1524 ni_set_bits(dev
, NISTC_INTA_ENA_REG
, NISTC_INTA_ENA_AI_MASK
, 0);
1526 ni_clear_ai_fifo(dev
);
1528 if (!devpriv
->is_6143
)
1529 ni_writeb(dev
, NI_E_MISC_CMD_EXT_ATRIG
, NI_E_MISC_CMD_REG
);
1531 ni_stc_writew(dev
, NISTC_AI_CMD1_DISARM
, NISTC_AI_CMD1_REG
);
1532 ni_stc_writew(dev
, NISTC_AI_MODE1_START_STOP
|
1534 /*| NISTC_AI_MODE1_TRIGGER_ONCE */,
1535 NISTC_AI_MODE1_REG
);
1536 ni_stc_writew(dev
, 0, NISTC_AI_MODE2_REG
);
1537 /* generate FIFO interrupts on non-empty */
1538 ni_stc_writew(dev
, NISTC_AI_MODE3_FIFO_MODE_NE
,
1539 NISTC_AI_MODE3_REG
);
1541 ai_personal
= NISTC_AI_PERSONAL_SHIFTIN_PW
|
1542 NISTC_AI_PERSONAL_SOC_POLARITY
|
1543 NISTC_AI_PERSONAL_LOCALMUX_CLK_PW
;
1544 ai_out_ctrl
= NISTC_AI_OUT_CTRL_SCAN_IN_PROG_SEL(3) |
1545 NISTC_AI_OUT_CTRL_EXTMUX_CLK_SEL(0) |
1546 NISTC_AI_OUT_CTRL_LOCALMUX_CLK_SEL(2) |
1547 NISTC_AI_OUT_CTRL_SC_TC_SEL(3);
1548 if (devpriv
->is_611x
) {
1549 ai_out_ctrl
|= NISTC_AI_OUT_CTRL_CONVERT_HIGH
;
1550 } else if (devpriv
->is_6143
) {
1551 ai_out_ctrl
|= NISTC_AI_OUT_CTRL_CONVERT_LOW
;
1553 ai_personal
|= NISTC_AI_PERSONAL_CONVERT_PW
;
1554 if (devpriv
->is_622x
)
1555 ai_out_ctrl
|= NISTC_AI_OUT_CTRL_CONVERT_HIGH
;
1557 ai_out_ctrl
|= NISTC_AI_OUT_CTRL_CONVERT_LOW
;
1559 ni_stc_writew(dev
, ai_personal
, NISTC_AI_PERSONAL_REG
);
1560 ni_stc_writew(dev
, ai_out_ctrl
, NISTC_AI_OUT_CTRL_REG
);
1562 /* the following registers should not be changed, because there
1563 * are no backup registers in devpriv. If you want to change
1564 * any of these, add a backup register and other appropriate code:
1565 * NISTC_AI_MODE1_REG
1566 * NISTC_AI_MODE3_REG
1567 * NISTC_AI_PERSONAL_REG
1568 * NISTC_AI_OUT_CTRL_REG
1571 /* clear interrupts */
1572 ni_stc_writew(dev
, NISTC_INTA_ACK_AI_ALL
, NISTC_INTA_ACK_REG
);
1574 ni_stc_writew(dev
, NISTC_RESET_AI_CFG_END
, NISTC_RESET_REG
);
1579 static int ni_ai_poll(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
1581 unsigned long flags
;
1584 /* lock to avoid race with interrupt handler */
1585 spin_lock_irqsave(&dev
->spinlock
, flags
);
1587 ni_handle_fifo_dregs(dev
);
1589 ni_sync_ai_dma(dev
);
1591 count
= comedi_buf_n_bytes_ready(s
);
1592 spin_unlock_irqrestore(&dev
->spinlock
, flags
);
1597 static void ni_prime_channelgain_list(struct comedi_device
*dev
)
1601 ni_stc_writew(dev
, NISTC_AI_CMD1_CONVERT_PULSE
, NISTC_AI_CMD1_REG
);
1602 for (i
= 0; i
< NI_TIMEOUT
; ++i
) {
1603 if (!(ni_stc_readw(dev
, NISTC_AI_STATUS1_REG
) &
1604 NISTC_AI_STATUS1_FIFO_E
)) {
1605 ni_stc_writew(dev
, 1, NISTC_ADC_FIFO_CLR_REG
);
1610 dev_err(dev
->class_dev
, "timeout loading channel/gain list\n");
1613 static void ni_m_series_load_channelgain_list(struct comedi_device
*dev
,
1614 unsigned int n_chan
,
1617 const struct ni_board_struct
*board
= dev
->board_ptr
;
1618 struct ni_private
*devpriv
= dev
->private;
1619 unsigned int chan
, range
, aref
;
1621 unsigned int dither
;
1622 unsigned int range_code
;
1624 ni_stc_writew(dev
, 1, NISTC_CFG_MEM_CLR_REG
);
1626 if ((list
[0] & CR_ALT_SOURCE
)) {
1627 unsigned int bypass_bits
;
1629 chan
= CR_CHAN(list
[0]);
1630 range
= CR_RANGE(list
[0]);
1631 range_code
= ni_gainlkup
[board
->gainlkup
][range
];
1632 dither
= (list
[0] & CR_ALT_FILTER
) != 0;
1633 bypass_bits
= NI_M_CFG_BYPASS_FIFO
|
1634 NI_M_CFG_BYPASS_AI_CHAN(chan
) |
1635 NI_M_CFG_BYPASS_AI_GAIN(range_code
) |
1636 devpriv
->ai_calib_source
;
1638 bypass_bits
|= NI_M_CFG_BYPASS_AI_DITHER
;
1639 /* don't use 2's complement encoding */
1640 bypass_bits
|= NI_M_CFG_BYPASS_AI_POLARITY
;
1641 ni_writel(dev
, bypass_bits
, NI_M_CFG_BYPASS_FIFO_REG
);
1643 ni_writel(dev
, 0, NI_M_CFG_BYPASS_FIFO_REG
);
1645 for (i
= 0; i
< n_chan
; i
++) {
1646 unsigned int config_bits
= 0;
1648 chan
= CR_CHAN(list
[i
]);
1649 aref
= CR_AREF(list
[i
]);
1650 range
= CR_RANGE(list
[i
]);
1651 dither
= (list
[i
] & CR_ALT_FILTER
) != 0;
1653 range_code
= ni_gainlkup
[board
->gainlkup
][range
];
1654 devpriv
->ai_offset
[i
] = 0;
1657 config_bits
|= NI_M_AI_CFG_CHAN_TYPE_DIFF
;
1660 config_bits
|= NI_M_AI_CFG_CHAN_TYPE_COMMON
;
1663 config_bits
|= NI_M_AI_CFG_CHAN_TYPE_GROUND
;
1668 config_bits
|= NI_M_AI_CFG_CHAN_SEL(chan
);
1669 config_bits
|= NI_M_AI_CFG_BANK_SEL(chan
);
1670 config_bits
|= NI_M_AI_CFG_GAIN(range_code
);
1671 if (i
== n_chan
- 1)
1672 config_bits
|= NI_M_AI_CFG_LAST_CHAN
;
1674 config_bits
|= NI_M_AI_CFG_DITHER
;
1675 /* don't use 2's complement encoding */
1676 config_bits
|= NI_M_AI_CFG_POLARITY
;
1677 ni_writew(dev
, config_bits
, NI_M_AI_CFG_FIFO_DATA_REG
);
1679 ni_prime_channelgain_list(dev
);
1683 * Notes on the 6110 and 6111:
1684 * These boards a slightly different than the rest of the series, since
1685 * they have multiple A/D converters.
1686 * From the driver side, the configuration memory is a
1688 * Configuration Memory Low:
1690 * bit 8: unipolar/bipolar (should be 0 for bipolar)
1691 * bits 0-3: gain. This is 4 bits instead of 3 for the other boards
1692 * 1001 gain=0.1 (+/- 50)
1701 * Configuration Memory High:
1702 * bits 12-14: Channel Type
1703 * 001 for differential
1704 * 000 for calibration
1705 * bit 11: coupling (this is not currently handled)
1709 * valid channels are 0-3
1711 static void ni_load_channelgain_list(struct comedi_device
*dev
,
1712 struct comedi_subdevice
*s
,
1713 unsigned int n_chan
, unsigned int *list
)
1715 const struct ni_board_struct
*board
= dev
->board_ptr
;
1716 struct ni_private
*devpriv
= dev
->private;
1717 unsigned int offset
= (s
->maxdata
+ 1) >> 1;
1718 unsigned int chan
, range
, aref
;
1720 unsigned int hi
, lo
;
1721 unsigned int dither
;
1723 if (devpriv
->is_m_series
) {
1724 ni_m_series_load_channelgain_list(dev
, n_chan
, list
);
1727 if (n_chan
== 1 && !devpriv
->is_611x
&& !devpriv
->is_6143
) {
1728 if (devpriv
->changain_state
&&
1729 devpriv
->changain_spec
== list
[0]) {
1733 devpriv
->changain_state
= 1;
1734 devpriv
->changain_spec
= list
[0];
1736 devpriv
->changain_state
= 0;
1739 ni_stc_writew(dev
, 1, NISTC_CFG_MEM_CLR_REG
);
1741 /* Set up Calibration mode if required */
1742 if (devpriv
->is_6143
) {
1743 if ((list
[0] & CR_ALT_SOURCE
) &&
1744 !devpriv
->ai_calib_source_enabled
) {
1745 /* Strobe Relay enable bit */
1746 ni_writew(dev
, devpriv
->ai_calib_source
|
1747 NI6143_CALIB_CHAN_RELAY_ON
,
1748 NI6143_CALIB_CHAN_REG
);
1749 ni_writew(dev
, devpriv
->ai_calib_source
,
1750 NI6143_CALIB_CHAN_REG
);
1751 devpriv
->ai_calib_source_enabled
= 1;
1752 /* Allow relays to change */
1753 msleep_interruptible(100);
1754 } else if (!(list
[0] & CR_ALT_SOURCE
) &&
1755 devpriv
->ai_calib_source_enabled
) {
1756 /* Strobe Relay disable bit */
1757 ni_writew(dev
, devpriv
->ai_calib_source
|
1758 NI6143_CALIB_CHAN_RELAY_OFF
,
1759 NI6143_CALIB_CHAN_REG
);
1760 ni_writew(dev
, devpriv
->ai_calib_source
,
1761 NI6143_CALIB_CHAN_REG
);
1762 devpriv
->ai_calib_source_enabled
= 0;
1763 /* Allow relays to change */
1764 msleep_interruptible(100);
1768 for (i
= 0; i
< n_chan
; i
++) {
1769 if (!devpriv
->is_6143
&& (list
[i
] & CR_ALT_SOURCE
))
1770 chan
= devpriv
->ai_calib_source
;
1772 chan
= CR_CHAN(list
[i
]);
1773 aref
= CR_AREF(list
[i
]);
1774 range
= CR_RANGE(list
[i
]);
1775 dither
= (list
[i
] & CR_ALT_FILTER
) != 0;
1777 /* fix the external/internal range differences */
1778 range
= ni_gainlkup
[board
->gainlkup
][range
];
1779 if (devpriv
->is_611x
)
1780 devpriv
->ai_offset
[i
] = offset
;
1782 devpriv
->ai_offset
[i
] = (range
& 0x100) ? 0 : offset
;
1785 if ((list
[i
] & CR_ALT_SOURCE
)) {
1786 if (devpriv
->is_611x
)
1787 ni_writew(dev
, CR_CHAN(list
[i
]) & 0x0003,
1788 NI611X_CALIB_CHAN_SEL_REG
);
1790 if (devpriv
->is_611x
)
1792 else if (devpriv
->is_6143
)
1796 hi
|= NI_E_AI_CFG_HI_TYPE_DIFF
;
1799 hi
|= NI_E_AI_CFG_HI_TYPE_COMMON
;
1802 hi
|= NI_E_AI_CFG_HI_TYPE_GROUND
;
1808 hi
|= NI_E_AI_CFG_HI_CHAN(chan
);
1810 ni_writew(dev
, hi
, NI_E_AI_CFG_HI_REG
);
1812 if (!devpriv
->is_6143
) {
1813 lo
= NI_E_AI_CFG_LO_GAIN(range
);
1815 if (i
== n_chan
- 1)
1816 lo
|= NI_E_AI_CFG_LO_LAST_CHAN
;
1818 lo
|= NI_E_AI_CFG_LO_DITHER
;
1820 ni_writew(dev
, lo
, NI_E_AI_CFG_LO_REG
);
1824 /* prime the channel/gain list */
1825 if (!devpriv
->is_611x
&& !devpriv
->is_6143
)
1826 ni_prime_channelgain_list(dev
);
1829 static int ni_ai_insn_read(struct comedi_device
*dev
,
1830 struct comedi_subdevice
*s
,
1831 struct comedi_insn
*insn
,
1834 struct ni_private
*devpriv
= dev
->private;
1835 unsigned int mask
= s
->maxdata
;
1837 unsigned int signbits
;
1840 ni_load_channelgain_list(dev
, s
, 1, &insn
->chanspec
);
1842 ni_clear_ai_fifo(dev
);
1844 signbits
= devpriv
->ai_offset
[0];
1845 if (devpriv
->is_611x
) {
1846 for (n
= 0; n
< num_adc_stages_611x
; n
++) {
1847 ni_stc_writew(dev
, NISTC_AI_CMD1_CONVERT_PULSE
,
1851 for (n
= 0; n
< insn
->n
; n
++) {
1852 ni_stc_writew(dev
, NISTC_AI_CMD1_CONVERT_PULSE
,
1854 /* The 611x has screwy 32-bit FIFOs. */
1856 for (i
= 0; i
< NI_TIMEOUT
; i
++) {
1857 if (ni_readb(dev
, NI_E_STATUS_REG
) & 0x80) {
1859 NI611X_AI_FIFO_DATA_REG
);
1864 if (!(ni_stc_readw(dev
, NISTC_AI_STATUS1_REG
) &
1865 NISTC_AI_STATUS1_FIFO_E
)) {
1867 NI611X_AI_FIFO_DATA_REG
);
1872 if (i
== NI_TIMEOUT
) {
1873 dev_err(dev
->class_dev
, "timeout\n");
1877 data
[n
] = d
& 0xffff;
1879 } else if (devpriv
->is_6143
) {
1880 for (n
= 0; n
< insn
->n
; n
++) {
1881 ni_stc_writew(dev
, NISTC_AI_CMD1_CONVERT_PULSE
,
1885 * The 6143 has 32-bit FIFOs. You need to strobe a
1886 * bit to move a single 16bit stranded sample into
1890 for (i
= 0; i
< NI_TIMEOUT
; i
++) {
1891 if (ni_readl(dev
, NI6143_AI_FIFO_STATUS_REG
) &
1893 /* Get stranded sample into FIFO */
1894 ni_writel(dev
, 0x01,
1895 NI6143_AI_FIFO_CTRL_REG
);
1897 NI6143_AI_FIFO_DATA_REG
);
1901 if (i
== NI_TIMEOUT
) {
1902 dev_err(dev
->class_dev
, "timeout\n");
1905 data
[n
] = (((d
>> 16) & 0xFFFF) + signbits
) & 0xFFFF;
1908 for (n
= 0; n
< insn
->n
; n
++) {
1909 ni_stc_writew(dev
, NISTC_AI_CMD1_CONVERT_PULSE
,
1911 for (i
= 0; i
< NI_TIMEOUT
; i
++) {
1912 if (!(ni_stc_readw(dev
, NISTC_AI_STATUS1_REG
) &
1913 NISTC_AI_STATUS1_FIFO_E
))
1916 if (i
== NI_TIMEOUT
) {
1917 dev_err(dev
->class_dev
, "timeout\n");
1920 if (devpriv
->is_m_series
) {
1921 d
= ni_readl(dev
, NI_M_AI_FIFO_DATA_REG
);
1925 d
= ni_readw(dev
, NI_E_AI_FIFO_DATA_REG
);
1927 data
[n
] = d
& 0xffff;
1934 static int ni_ns_to_timer(const struct comedi_device
*dev
,
1935 unsigned int nanosec
, unsigned int flags
)
1937 struct ni_private
*devpriv
= dev
->private;
1940 switch (flags
& CMDF_ROUND_MASK
) {
1941 case CMDF_ROUND_NEAREST
:
1943 divider
= DIV_ROUND_CLOSEST(nanosec
, devpriv
->clock_ns
);
1945 case CMDF_ROUND_DOWN
:
1946 divider
= (nanosec
) / devpriv
->clock_ns
;
1949 divider
= DIV_ROUND_UP(nanosec
, devpriv
->clock_ns
);
1955 static unsigned int ni_timer_to_ns(const struct comedi_device
*dev
, int timer
)
1957 struct ni_private
*devpriv
= dev
->private;
1959 return devpriv
->clock_ns
* (timer
+ 1);
1962 static void ni_cmd_set_mite_transfer(struct mite_ring
*ring
,
1963 struct comedi_subdevice
*sdev
,
1964 const struct comedi_cmd
*cmd
,
1965 unsigned int max_count
) {
1967 unsigned int nbytes
= max_count
;
1969 if (cmd
->stop_arg
> 0 && cmd
->stop_arg
< max_count
)
1970 nbytes
= cmd
->stop_arg
;
1971 nbytes
*= comedi_bytes_per_scan(sdev
);
1973 if (nbytes
> sdev
->async
->prealloc_bufsz
) {
1974 if (cmd
->stop_arg
> 0)
1975 dev_err(sdev
->device
->class_dev
,
1976 "ni_cmd_set_mite_transfer: tried exact data transfer limits greater than buffer size\n");
1979 * we can only transfer up to the size of the buffer. In this
1980 * case, the user is expected to continue to write into the
1981 * comedi buffer (already implemented as a ring buffer).
1983 nbytes
= sdev
->async
->prealloc_bufsz
;
1986 mite_init_ring_descriptors(ring
, sdev
, nbytes
);
1988 dev_err(sdev
->device
->class_dev
,
1989 "ni_cmd_set_mite_transfer: exact data transfer limits not implemented yet without DMA\n");
1993 static unsigned int ni_min_ai_scan_period_ns(struct comedi_device
*dev
,
1994 unsigned int num_channels
)
1996 const struct ni_board_struct
*board
= dev
->board_ptr
;
1997 struct ni_private
*devpriv
= dev
->private;
1999 /* simultaneously-sampled inputs */
2000 if (devpriv
->is_611x
|| devpriv
->is_6143
)
2001 return board
->ai_speed
;
2003 /* multiplexed inputs */
2004 return board
->ai_speed
* num_channels
;
2007 static int ni_ai_cmdtest(struct comedi_device
*dev
, struct comedi_subdevice
*s
,
2008 struct comedi_cmd
*cmd
)
2010 const struct ni_board_struct
*board
= dev
->board_ptr
;
2011 struct ni_private
*devpriv
= dev
->private;
2014 unsigned int sources
;
2016 /* Step 1 : check if triggers are trivially valid */
2018 err
|= comedi_check_trigger_src(&cmd
->start_src
,
2019 TRIG_NOW
| TRIG_INT
| TRIG_EXT
);
2020 err
|= comedi_check_trigger_src(&cmd
->scan_begin_src
,
2021 TRIG_TIMER
| TRIG_EXT
);
2023 sources
= TRIG_TIMER
| TRIG_EXT
;
2024 if (devpriv
->is_611x
|| devpriv
->is_6143
)
2025 sources
|= TRIG_NOW
;
2026 err
|= comedi_check_trigger_src(&cmd
->convert_src
, sources
);
2028 err
|= comedi_check_trigger_src(&cmd
->scan_end_src
, TRIG_COUNT
);
2029 err
|= comedi_check_trigger_src(&cmd
->stop_src
, TRIG_COUNT
| TRIG_NONE
);
2034 /* Step 2a : make sure trigger sources are unique */
2036 err
|= comedi_check_trigger_is_unique(cmd
->start_src
);
2037 err
|= comedi_check_trigger_is_unique(cmd
->scan_begin_src
);
2038 err
|= comedi_check_trigger_is_unique(cmd
->convert_src
);
2039 err
|= comedi_check_trigger_is_unique(cmd
->stop_src
);
2041 /* Step 2b : and mutually compatible */
2046 /* Step 3: check if arguments are trivially valid */
2048 switch (cmd
->start_src
) {
2051 err
|= comedi_check_trigger_arg_is(&cmd
->start_arg
, 0);
2054 tmp
= CR_CHAN(cmd
->start_arg
);
2058 tmp
|= (cmd
->start_arg
& (CR_INVERT
| CR_EDGE
));
2059 err
|= comedi_check_trigger_arg_is(&cmd
->start_arg
, tmp
);
2063 if (cmd
->scan_begin_src
== TRIG_TIMER
) {
2064 err
|= comedi_check_trigger_arg_min(&cmd
->scan_begin_arg
,
2065 ni_min_ai_scan_period_ns(dev
, cmd
->chanlist_len
));
2066 err
|= comedi_check_trigger_arg_max(&cmd
->scan_begin_arg
,
2069 } else if (cmd
->scan_begin_src
== TRIG_EXT
) {
2070 /* external trigger */
2071 unsigned int tmp
= CR_CHAN(cmd
->scan_begin_arg
);
2075 tmp
|= (cmd
->scan_begin_arg
& (CR_INVERT
| CR_EDGE
));
2076 err
|= comedi_check_trigger_arg_is(&cmd
->scan_begin_arg
, tmp
);
2077 } else { /* TRIG_OTHER */
2078 err
|= comedi_check_trigger_arg_is(&cmd
->scan_begin_arg
, 0);
2081 if (cmd
->convert_src
== TRIG_TIMER
) {
2082 if (devpriv
->is_611x
|| devpriv
->is_6143
) {
2083 err
|= comedi_check_trigger_arg_is(&cmd
->convert_arg
,
2086 err
|= comedi_check_trigger_arg_min(&cmd
->convert_arg
,
2088 err
|= comedi_check_trigger_arg_max(&cmd
->convert_arg
,
2092 } else if (cmd
->convert_src
== TRIG_EXT
) {
2093 /* external trigger */
2094 unsigned int tmp
= CR_CHAN(cmd
->convert_arg
);
2098 tmp
|= (cmd
->convert_arg
& (CR_ALT_FILTER
| CR_INVERT
));
2099 err
|= comedi_check_trigger_arg_is(&cmd
->convert_arg
, tmp
);
2100 } else if (cmd
->convert_src
== TRIG_NOW
) {
2101 err
|= comedi_check_trigger_arg_is(&cmd
->convert_arg
, 0);
2104 err
|= comedi_check_trigger_arg_is(&cmd
->scan_end_arg
,
2107 if (cmd
->stop_src
== TRIG_COUNT
) {
2108 unsigned int max_count
= 0x01000000;
2110 if (devpriv
->is_611x
)
2111 max_count
-= num_adc_stages_611x
;
2112 err
|= comedi_check_trigger_arg_max(&cmd
->stop_arg
, max_count
);
2113 err
|= comedi_check_trigger_arg_min(&cmd
->stop_arg
, 1);
2116 err
|= comedi_check_trigger_arg_is(&cmd
->stop_arg
, 0);
2122 /* step 4: fix up any arguments */
2124 if (cmd
->scan_begin_src
== TRIG_TIMER
) {
2125 tmp
= cmd
->scan_begin_arg
;
2126 cmd
->scan_begin_arg
=
2127 ni_timer_to_ns(dev
, ni_ns_to_timer(dev
,
2128 cmd
->scan_begin_arg
,
2130 if (tmp
!= cmd
->scan_begin_arg
)
2133 if (cmd
->convert_src
== TRIG_TIMER
) {
2134 if (!devpriv
->is_611x
&& !devpriv
->is_6143
) {
2135 tmp
= cmd
->convert_arg
;
2137 ni_timer_to_ns(dev
, ni_ns_to_timer(dev
,
2140 if (tmp
!= cmd
->convert_arg
)
2142 if (cmd
->scan_begin_src
== TRIG_TIMER
&&
2143 cmd
->scan_begin_arg
<
2144 cmd
->convert_arg
* cmd
->scan_end_arg
) {
2145 cmd
->scan_begin_arg
=
2146 cmd
->convert_arg
* cmd
->scan_end_arg
;
2158 static int ni_ai_inttrig(struct comedi_device
*dev
,
2159 struct comedi_subdevice
*s
,
2160 unsigned int trig_num
)
2162 struct ni_private
*devpriv
= dev
->private;
2163 struct comedi_cmd
*cmd
= &s
->async
->cmd
;
2165 if (trig_num
!= cmd
->start_arg
)
2168 ni_stc_writew(dev
, NISTC_AI_CMD2_START1_PULSE
| devpriv
->ai_cmd2
,
2170 s
->async
->inttrig
= NULL
;
2175 static int ni_ai_cmd(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
2177 struct ni_private
*devpriv
= dev
->private;
2178 const struct comedi_cmd
*cmd
= &s
->async
->cmd
;
2180 int mode1
= 0; /* mode1 is needed for both stop and convert */
2182 int start_stop_select
= 0;
2183 unsigned int stop_count
;
2184 int interrupt_a_enable
= 0;
2185 unsigned int ai_trig
;
2187 if (dev
->irq
== 0) {
2188 dev_err(dev
->class_dev
, "cannot run command without an irq\n");
2191 ni_clear_ai_fifo(dev
);
2193 ni_load_channelgain_list(dev
, s
, cmd
->chanlist_len
, cmd
->chanlist
);
2195 /* start configuration */
2196 ni_stc_writew(dev
, NISTC_RESET_AI_CFG_START
, NISTC_RESET_REG
);
2199 * Disable analog triggering for now, since it interferes
2200 * with the use of pfi0.
2202 devpriv
->an_trig_etc_reg
&= ~NISTC_ATRIG_ETC_ENA
;
2203 ni_stc_writew(dev
, devpriv
->an_trig_etc_reg
, NISTC_ATRIG_ETC_REG
);
2205 ai_trig
= NISTC_AI_TRIG_START2_SEL(0) | NISTC_AI_TRIG_START1_SYNC
;
2206 switch (cmd
->start_src
) {
2209 ai_trig
|= NISTC_AI_TRIG_START1_EDGE
|
2210 NISTC_AI_TRIG_START1_SEL(0);
2213 ai_trig
|= NISTC_AI_TRIG_START1_SEL(CR_CHAN(cmd
->start_arg
) +
2216 if (cmd
->start_arg
& CR_INVERT
)
2217 ai_trig
|= NISTC_AI_TRIG_START1_POLARITY
;
2218 if (cmd
->start_arg
& CR_EDGE
)
2219 ai_trig
|= NISTC_AI_TRIG_START1_EDGE
;
2222 ni_stc_writew(dev
, ai_trig
, NISTC_AI_TRIG_SEL_REG
);
2224 mode2
&= ~NISTC_AI_MODE2_PRE_TRIGGER
;
2225 mode2
&= ~NISTC_AI_MODE2_SC_INIT_LOAD_SRC
;
2226 mode2
&= ~NISTC_AI_MODE2_SC_RELOAD_MODE
;
2227 ni_stc_writew(dev
, mode2
, NISTC_AI_MODE2_REG
);
2229 if (cmd
->chanlist_len
== 1 || devpriv
->is_611x
|| devpriv
->is_6143
) {
2231 start_stop_select
|= NISTC_AI_STOP_POLARITY
|
2232 NISTC_AI_STOP_SEL(31) |
2235 /* ai configuration memory */
2236 start_stop_select
|= NISTC_AI_STOP_SEL(19);
2238 ni_stc_writew(dev
, start_stop_select
, NISTC_AI_START_STOP_REG
);
2240 devpriv
->ai_cmd2
= 0;
2241 switch (cmd
->stop_src
) {
2243 stop_count
= cmd
->stop_arg
- 1;
2245 if (devpriv
->is_611x
) {
2246 /* have to take 3 stage adc pipeline into account */
2247 stop_count
+= num_adc_stages_611x
;
2249 /* stage number of scans */
2250 ni_stc_writel(dev
, stop_count
, NISTC_AI_SC_LOADA_REG
);
2252 mode1
|= NISTC_AI_MODE1_START_STOP
|
2253 NISTC_AI_MODE1_RSVD
|
2254 NISTC_AI_MODE1_TRIGGER_ONCE
;
2255 ni_stc_writew(dev
, mode1
, NISTC_AI_MODE1_REG
);
2256 /* load SC (Scan Count) */
2257 ni_stc_writew(dev
, NISTC_AI_CMD1_SC_LOAD
, NISTC_AI_CMD1_REG
);
2259 if (stop_count
== 0) {
2260 devpriv
->ai_cmd2
|= NISTC_AI_CMD2_END_ON_EOS
;
2261 interrupt_a_enable
|= NISTC_INTA_ENA_AI_STOP
;
2263 * This is required to get the last sample for
2264 * chanlist_len > 1, not sure why.
2266 if (cmd
->chanlist_len
> 1)
2267 start_stop_select
|= NISTC_AI_STOP_POLARITY
|
2272 /* stage number of scans */
2273 ni_stc_writel(dev
, 0, NISTC_AI_SC_LOADA_REG
);
2275 mode1
|= NISTC_AI_MODE1_START_STOP
|
2276 NISTC_AI_MODE1_RSVD
|
2277 NISTC_AI_MODE1_CONTINUOUS
;
2278 ni_stc_writew(dev
, mode1
, NISTC_AI_MODE1_REG
);
2280 /* load SC (Scan Count) */
2281 ni_stc_writew(dev
, NISTC_AI_CMD1_SC_LOAD
, NISTC_AI_CMD1_REG
);
2285 switch (cmd
->scan_begin_src
) {
2288 * stop bits for non 611x boards
2289 * NISTC_AI_MODE3_SI_TRIG_DELAY=0
2290 * NISTC_AI_MODE2_PRE_TRIGGER=0
2291 * NISTC_AI_START_STOP_REG:
2292 * NISTC_AI_START_POLARITY=0 (?) rising edge
2293 * NISTC_AI_START_EDGE=1 edge triggered
2294 * NISTC_AI_START_SYNC=1 (?)
2295 * NISTC_AI_START_SEL=0 SI_TC
2296 * NISTC_AI_STOP_POLARITY=0 rising edge
2297 * NISTC_AI_STOP_EDGE=0 level
2298 * NISTC_AI_STOP_SYNC=1
2299 * NISTC_AI_STOP_SEL=19 external pin (configuration mem)
2301 start_stop_select
|= NISTC_AI_START_EDGE
| NISTC_AI_START_SYNC
;
2302 ni_stc_writew(dev
, start_stop_select
, NISTC_AI_START_STOP_REG
);
2304 mode2
&= ~NISTC_AI_MODE2_SI_INIT_LOAD_SRC
; /* A */
2305 mode2
|= NISTC_AI_MODE2_SI_RELOAD_MODE(0);
2306 /* mode2 |= NISTC_AI_MODE2_SC_RELOAD_MODE; */
2307 ni_stc_writew(dev
, mode2
, NISTC_AI_MODE2_REG
);
2310 timer
= ni_ns_to_timer(dev
, cmd
->scan_begin_arg
,
2311 CMDF_ROUND_NEAREST
);
2312 ni_stc_writel(dev
, timer
, NISTC_AI_SI_LOADA_REG
);
2313 ni_stc_writew(dev
, NISTC_AI_CMD1_SI_LOAD
, NISTC_AI_CMD1_REG
);
2316 if (cmd
->scan_begin_arg
& CR_EDGE
)
2317 start_stop_select
|= NISTC_AI_START_EDGE
;
2318 if (cmd
->scan_begin_arg
& CR_INVERT
) /* falling edge */
2319 start_stop_select
|= NISTC_AI_START_POLARITY
;
2320 if (cmd
->scan_begin_src
!= cmd
->convert_src
||
2321 (cmd
->scan_begin_arg
& ~CR_EDGE
) !=
2322 (cmd
->convert_arg
& ~CR_EDGE
))
2323 start_stop_select
|= NISTC_AI_START_SYNC
;
2324 start_stop_select
|=
2325 NISTC_AI_START_SEL(1 + CR_CHAN(cmd
->scan_begin_arg
));
2326 ni_stc_writew(dev
, start_stop_select
, NISTC_AI_START_STOP_REG
);
2330 switch (cmd
->convert_src
) {
2333 if (cmd
->convert_arg
== 0 || cmd
->convert_src
== TRIG_NOW
)
2336 timer
= ni_ns_to_timer(dev
, cmd
->convert_arg
,
2337 CMDF_ROUND_NEAREST
);
2338 /* 0,0 does not work */
2339 ni_stc_writew(dev
, 1, NISTC_AI_SI2_LOADA_REG
);
2340 ni_stc_writew(dev
, timer
, NISTC_AI_SI2_LOADB_REG
);
2342 mode2
&= ~NISTC_AI_MODE2_SI2_INIT_LOAD_SRC
; /* A */
2343 mode2
|= NISTC_AI_MODE2_SI2_RELOAD_MODE
; /* alternate */
2344 ni_stc_writew(dev
, mode2
, NISTC_AI_MODE2_REG
);
2346 ni_stc_writew(dev
, NISTC_AI_CMD1_SI2_LOAD
, NISTC_AI_CMD1_REG
);
2348 mode2
|= NISTC_AI_MODE2_SI2_INIT_LOAD_SRC
; /* B */
2349 mode2
|= NISTC_AI_MODE2_SI2_RELOAD_MODE
; /* alternate */
2350 ni_stc_writew(dev
, mode2
, NISTC_AI_MODE2_REG
);
2353 mode1
|= NISTC_AI_MODE1_CONVERT_SRC(1 +
2354 CR_CHAN(cmd
->convert_arg
));
2355 if ((cmd
->convert_arg
& CR_INVERT
) == 0)
2356 mode1
|= NISTC_AI_MODE1_CONVERT_POLARITY
;
2357 ni_stc_writew(dev
, mode1
, NISTC_AI_MODE1_REG
);
2359 mode2
|= NISTC_AI_MODE2_SC_GATE_ENA
|
2360 NISTC_AI_MODE2_START_STOP_GATE_ENA
;
2361 ni_stc_writew(dev
, mode2
, NISTC_AI_MODE2_REG
);
2367 /* interrupt on FIFO, errors, SC_TC */
2368 interrupt_a_enable
|= NISTC_INTA_ENA_AI_ERR
|
2369 NISTC_INTA_ENA_AI_SC_TC
;
2372 interrupt_a_enable
|= NISTC_INTA_ENA_AI_FIFO
;
2375 if ((cmd
->flags
& CMDF_WAKE_EOS
) ||
2376 (devpriv
->ai_cmd2
& NISTC_AI_CMD2_END_ON_EOS
)) {
2377 /* wake on end-of-scan */
2378 devpriv
->aimode
= AIMODE_SCAN
;
2380 devpriv
->aimode
= AIMODE_HALF_FULL
;
2383 switch (devpriv
->aimode
) {
2384 case AIMODE_HALF_FULL
:
2385 /* FIFO interrupts and DMA requests on half-full */
2387 ni_stc_writew(dev
, NISTC_AI_MODE3_FIFO_MODE_HF_E
,
2388 NISTC_AI_MODE3_REG
);
2390 ni_stc_writew(dev
, NISTC_AI_MODE3_FIFO_MODE_HF
,
2391 NISTC_AI_MODE3_REG
);
2395 /*generate FIFO interrupts on non-empty */
2396 ni_stc_writew(dev
, NISTC_AI_MODE3_FIFO_MODE_NE
,
2397 NISTC_AI_MODE3_REG
);
2401 ni_stc_writew(dev
, NISTC_AI_MODE3_FIFO_MODE_NE
,
2402 NISTC_AI_MODE3_REG
);
2404 ni_stc_writew(dev
, NISTC_AI_MODE3_FIFO_MODE_HF
,
2405 NISTC_AI_MODE3_REG
);
2407 interrupt_a_enable
|= NISTC_INTA_ENA_AI_STOP
;
2413 /* clear interrupts */
2414 ni_stc_writew(dev
, NISTC_INTA_ACK_AI_ALL
, NISTC_INTA_ACK_REG
);
2416 ni_set_bits(dev
, NISTC_INTA_ENA_REG
, interrupt_a_enable
, 1);
2418 /* interrupt on nothing */
2419 ni_set_bits(dev
, NISTC_INTA_ENA_REG
, ~0, 0);
2421 /* XXX start polling if necessary */
2424 /* end configuration */
2425 ni_stc_writew(dev
, NISTC_RESET_AI_CFG_END
, NISTC_RESET_REG
);
2427 switch (cmd
->scan_begin_src
) {
2429 ni_stc_writew(dev
, NISTC_AI_CMD1_SI2_ARM
|
2430 NISTC_AI_CMD1_SI_ARM
|
2431 NISTC_AI_CMD1_DIV_ARM
|
2432 NISTC_AI_CMD1_SC_ARM
,
2436 ni_stc_writew(dev
, NISTC_AI_CMD1_SI2_ARM
|
2437 NISTC_AI_CMD1_SI_ARM
| /* XXX ? */
2438 NISTC_AI_CMD1_DIV_ARM
|
2439 NISTC_AI_CMD1_SC_ARM
,
2446 int retval
= ni_ai_setup_MITE_dma(dev
);
2453 if (cmd
->start_src
== TRIG_NOW
) {
2454 ni_stc_writew(dev
, NISTC_AI_CMD2_START1_PULSE
|
2457 s
->async
->inttrig
= NULL
;
2458 } else if (cmd
->start_src
== TRIG_EXT
) {
2459 s
->async
->inttrig
= NULL
;
2460 } else { /* TRIG_INT */
2461 s
->async
->inttrig
= ni_ai_inttrig
;
2467 static int ni_ai_insn_config(struct comedi_device
*dev
,
2468 struct comedi_subdevice
*s
,
2469 struct comedi_insn
*insn
, unsigned int *data
)
2471 struct ni_private
*devpriv
= dev
->private;
2477 case INSN_CONFIG_ALT_SOURCE
:
2478 if (devpriv
->is_m_series
) {
2479 if (data
[1] & ~NI_M_CFG_BYPASS_AI_CAL_MASK
)
2481 devpriv
->ai_calib_source
= data
[1];
2482 } else if (devpriv
->is_6143
) {
2483 unsigned int calib_source
;
2485 calib_source
= data
[1] & 0xf;
2487 devpriv
->ai_calib_source
= calib_source
;
2488 ni_writew(dev
, calib_source
, NI6143_CALIB_CHAN_REG
);
2490 unsigned int calib_source
;
2491 unsigned int calib_source_adjust
;
2493 calib_source
= data
[1] & 0xf;
2494 calib_source_adjust
= (data
[1] >> 4) & 0xff;
2496 if (calib_source
>= 8)
2498 devpriv
->ai_calib_source
= calib_source
;
2499 if (devpriv
->is_611x
) {
2500 ni_writeb(dev
, calib_source_adjust
,
2501 NI611X_CAL_GAIN_SEL_REG
);
2512 static void ni_ao_munge(struct comedi_device
*dev
, struct comedi_subdevice
*s
,
2513 void *data
, unsigned int num_bytes
,
2514 unsigned int chan_index
)
2516 struct comedi_cmd
*cmd
= &s
->async
->cmd
;
2517 unsigned int nsamples
= comedi_bytes_to_samples(s
, num_bytes
);
2518 unsigned short *array
= data
;
2521 __le16 buf
, *barray
= data
;
2524 for (i
= 0; i
< nsamples
; i
++) {
2525 unsigned int range
= CR_RANGE(cmd
->chanlist
[chan_index
]);
2526 unsigned short val
= array
[i
];
2529 * Munge data from unsigned to two's complement for
2532 if (comedi_range_is_bipolar(s
, range
))
2533 val
= comedi_offset_munge(s
, val
);
2535 buf
= cpu_to_le16(val
);
2541 chan_index
%= cmd
->chanlist_len
;
2545 static int ni_m_series_ao_config_chanlist(struct comedi_device
*dev
,
2546 struct comedi_subdevice
*s
,
2547 unsigned int chanspec
[],
2548 unsigned int n_chans
, int timed
)
2550 struct ni_private
*devpriv
= dev
->private;
2558 for (i
= 0; i
< s
->n_chan
; ++i
) {
2559 devpriv
->ao_conf
[i
] &= ~NI_M_AO_CFG_BANK_UPDATE_TIMED
;
2560 ni_writeb(dev
, devpriv
->ao_conf
[i
],
2561 NI_M_AO_CFG_BANK_REG(i
));
2562 ni_writeb(dev
, 0xf, NI_M_AO_WAVEFORM_ORDER_REG(i
));
2565 for (i
= 0; i
< n_chans
; i
++) {
2566 const struct comedi_krange
*krange
;
2568 chan
= CR_CHAN(chanspec
[i
]);
2569 range
= CR_RANGE(chanspec
[i
]);
2570 krange
= s
->range_table
->range
+ range
;
2573 switch (krange
->max
- krange
->min
) {
2575 conf
|= NI_M_AO_CFG_BANK_REF_INT_10V
;
2576 ni_writeb(dev
, 0, NI_M_AO_REF_ATTENUATION_REG(chan
));
2579 conf
|= NI_M_AO_CFG_BANK_REF_INT_5V
;
2580 ni_writeb(dev
, 0, NI_M_AO_REF_ATTENUATION_REG(chan
));
2583 conf
|= NI_M_AO_CFG_BANK_REF_INT_10V
;
2584 ni_writeb(dev
, NI_M_AO_REF_ATTENUATION_X5
,
2585 NI_M_AO_REF_ATTENUATION_REG(chan
));
2588 conf
|= NI_M_AO_CFG_BANK_REF_INT_5V
;
2589 ni_writeb(dev
, NI_M_AO_REF_ATTENUATION_X5
,
2590 NI_M_AO_REF_ATTENUATION_REG(chan
));
2593 dev_err(dev
->class_dev
,
2594 "bug! unhandled ao reference voltage\n");
2597 switch (krange
->max
+ krange
->min
) {
2599 conf
|= NI_M_AO_CFG_BANK_OFFSET_0V
;
2602 conf
|= NI_M_AO_CFG_BANK_OFFSET_5V
;
2605 dev_err(dev
->class_dev
,
2606 "bug! unhandled ao offset voltage\n");
2610 conf
|= NI_M_AO_CFG_BANK_UPDATE_TIMED
;
2611 ni_writeb(dev
, conf
, NI_M_AO_CFG_BANK_REG(chan
));
2612 devpriv
->ao_conf
[chan
] = conf
;
2613 ni_writeb(dev
, i
, NI_M_AO_WAVEFORM_ORDER_REG(chan
));
2618 static int ni_old_ao_config_chanlist(struct comedi_device
*dev
,
2619 struct comedi_subdevice
*s
,
2620 unsigned int chanspec
[],
2621 unsigned int n_chans
)
2623 struct ni_private
*devpriv
= dev
->private;
2630 for (i
= 0; i
< n_chans
; i
++) {
2631 chan
= CR_CHAN(chanspec
[i
]);
2632 range
= CR_RANGE(chanspec
[i
]);
2633 conf
= NI_E_AO_DACSEL(chan
);
2635 if (comedi_range_is_bipolar(s
, range
)) {
2636 conf
|= NI_E_AO_CFG_BIP
;
2637 invert
= (s
->maxdata
+ 1) >> 1;
2641 if (comedi_range_is_external(s
, range
))
2642 conf
|= NI_E_AO_EXT_REF
;
2644 /* not all boards can deglitch, but this shouldn't hurt */
2645 if (chanspec
[i
] & CR_DEGLITCH
)
2646 conf
|= NI_E_AO_DEGLITCH
;
2648 /* analog reference */
2649 /* AREF_OTHER connects AO ground to AI ground, i think */
2650 if (CR_AREF(chanspec
[i
]) == AREF_OTHER
)
2651 conf
|= NI_E_AO_GROUND_REF
;
2653 ni_writew(dev
, conf
, NI_E_AO_CFG_REG
);
2654 devpriv
->ao_conf
[chan
] = conf
;
2659 static int ni_ao_config_chanlist(struct comedi_device
*dev
,
2660 struct comedi_subdevice
*s
,
2661 unsigned int chanspec
[], unsigned int n_chans
,
2664 struct ni_private
*devpriv
= dev
->private;
2666 if (devpriv
->is_m_series
)
2667 return ni_m_series_ao_config_chanlist(dev
, s
, chanspec
, n_chans
,
2670 return ni_old_ao_config_chanlist(dev
, s
, chanspec
, n_chans
);
2673 static int ni_ao_insn_write(struct comedi_device
*dev
,
2674 struct comedi_subdevice
*s
,
2675 struct comedi_insn
*insn
,
2678 struct ni_private
*devpriv
= dev
->private;
2679 unsigned int chan
= CR_CHAN(insn
->chanspec
);
2680 unsigned int range
= CR_RANGE(insn
->chanspec
);
2684 if (devpriv
->is_6xxx
) {
2685 ni_ao_win_outw(dev
, 1 << chan
, NI671X_AO_IMMEDIATE_REG
);
2687 reg
= NI671X_DAC_DIRECT_DATA_REG(chan
);
2688 } else if (devpriv
->is_m_series
) {
2689 reg
= NI_M_DAC_DIRECT_DATA_REG(chan
);
2691 reg
= NI_E_DAC_DIRECT_DATA_REG(chan
);
2694 ni_ao_config_chanlist(dev
, s
, &insn
->chanspec
, 1, 0);
2696 for (i
= 0; i
< insn
->n
; i
++) {
2697 unsigned int val
= data
[i
];
2699 s
->readback
[chan
] = val
;
2701 if (devpriv
->is_6xxx
) {
2703 * 6xxx boards have bipolar outputs, munge the
2704 * unsigned comedi values to 2's complement
2706 val
= comedi_offset_munge(s
, val
);
2708 ni_ao_win_outw(dev
, val
, reg
);
2709 } else if (devpriv
->is_m_series
) {
2711 * M-series boards use offset binary values for
2712 * bipolar and uinpolar outputs
2714 ni_writew(dev
, val
, reg
);
2717 * Non-M series boards need two's complement values
2718 * for bipolar ranges.
2720 if (comedi_range_is_bipolar(s
, range
))
2721 val
= comedi_offset_munge(s
, val
);
2723 ni_writew(dev
, val
, reg
);
2731 * Arms the AO device in preparation for a trigger event.
2732 * This function also allocates and prepares a DMA channel (or FIFO if DMA is
2733 * not used). As a part of this preparation, this function preloads the DAC
2734 * registers with the first values of the output stream. This ensures that the
2735 * first clock cycle after the trigger can be used for output.
2737 * Note that this function _must_ happen after a user has written data to the
2738 * output buffers via either mmap or write(fileno,...).
2740 static int ni_ao_arm(struct comedi_device
*dev
,
2741 struct comedi_subdevice
*s
)
2743 struct ni_private
*devpriv
= dev
->private;
2745 int interrupt_b_bits
;
2747 static const int timeout
= 1000;
2750 * Prevent ao from doing things like trying to allocate the ao dma
2751 * channel multiple times.
2753 if (!devpriv
->ao_needs_arming
) {
2754 dev_dbg(dev
->class_dev
, "%s: device does not need arming!\n",
2759 devpriv
->ao_needs_arming
= 0;
2761 ni_set_bits(dev
, NISTC_INTB_ENA_REG
,
2762 NISTC_INTB_ENA_AO_FIFO
| NISTC_INTB_ENA_AO_ERR
, 0);
2763 interrupt_b_bits
= NISTC_INTB_ENA_AO_ERR
;
2765 ni_stc_writew(dev
, 1, NISTC_DAC_FIFO_CLR_REG
);
2766 if (devpriv
->is_6xxx
)
2767 ni_ao_win_outl(dev
, 0x6, NI611X_AO_FIFO_OFFSET_LOAD_REG
);
2768 ret
= ni_ao_setup_MITE_dma(dev
);
2771 ret
= ni_ao_wait_for_dma_load(dev
);
2775 ret
= ni_ao_prep_fifo(dev
, s
);
2779 interrupt_b_bits
|= NISTC_INTB_ENA_AO_FIFO
;
2782 ni_stc_writew(dev
, devpriv
->ao_mode3
| NISTC_AO_MODE3_NOT_AN_UPDATE
,
2783 NISTC_AO_MODE3_REG
);
2784 ni_stc_writew(dev
, devpriv
->ao_mode3
, NISTC_AO_MODE3_REG
);
2785 /* wait for DACs to be loaded */
2786 for (i
= 0; i
< timeout
; i
++) {
2788 if ((ni_stc_readw(dev
, NISTC_STATUS2_REG
) &
2789 NISTC_STATUS2_AO_TMRDACWRS_IN_PROGRESS
) == 0)
2793 dev_err(dev
->class_dev
,
2794 "timed out waiting for AO_TMRDACWRs_In_Progress_St to clear\n");
2798 * stc manual says we are need to clear error interrupt after
2799 * AO_TMRDACWRs_In_Progress_St clears
2801 ni_stc_writew(dev
, NISTC_INTB_ACK_AO_ERR
, NISTC_INTB_ACK_REG
);
2803 ni_set_bits(dev
, NISTC_INTB_ENA_REG
, interrupt_b_bits
, 1);
2805 ni_stc_writew(dev
, NISTC_AO_CMD1_UI_ARM
|
2806 NISTC_AO_CMD1_UC_ARM
|
2807 NISTC_AO_CMD1_BC_ARM
|
2814 static int ni_ao_insn_config(struct comedi_device
*dev
,
2815 struct comedi_subdevice
*s
,
2816 struct comedi_insn
*insn
, unsigned int *data
)
2818 const struct ni_board_struct
*board
= dev
->board_ptr
;
2819 struct ni_private
*devpriv
= dev
->private;
2820 unsigned int nbytes
;
2823 case INSN_CONFIG_GET_HARDWARE_BUFFER_SIZE
:
2826 nbytes
= comedi_samples_to_bytes(s
,
2827 board
->ao_fifo_depth
);
2828 data
[2] = 1 + nbytes
;
2830 data
[2] += devpriv
->mite
->fifo_size
;
2839 case INSN_CONFIG_ARM
:
2840 return ni_ao_arm(dev
, s
);
2848 static int ni_ao_inttrig(struct comedi_device
*dev
,
2849 struct comedi_subdevice
*s
,
2850 unsigned int trig_num
)
2852 struct ni_private
*devpriv
= dev
->private;
2853 struct comedi_cmd
*cmd
= &s
->async
->cmd
;
2857 * Require trig_num == cmd->start_arg when cmd->start_src == TRIG_INT.
2858 * For backwards compatibility, also allow trig_num == 0 when
2859 * cmd->start_src != TRIG_INT (i.e. when cmd->start_src == TRIG_EXT);
2860 * in that case, the internal trigger is being used as a pre-trigger
2861 * before the external trigger.
2863 if (!(trig_num
== cmd
->start_arg
||
2864 (trig_num
== 0 && cmd
->start_src
!= TRIG_INT
)))
2868 * Null trig at beginning prevent ao start trigger from executing more
2869 * than once per command.
2871 s
->async
->inttrig
= NULL
;
2873 if (devpriv
->ao_needs_arming
) {
2874 /* only arm this device if it still needs arming */
2875 ret
= ni_ao_arm(dev
, s
);
2880 ni_stc_writew(dev
, NISTC_AO_CMD2_START1_PULSE
| devpriv
->ao_cmd2
,
2888 * Organized similar to NI-STC and MHDDK examples.
2889 * ni_ao_cmd is broken out into configuration sub-routines for clarity.
2892 static void ni_ao_cmd_personalize(struct comedi_device
*dev
,
2893 const struct comedi_cmd
*cmd
)
2895 const struct ni_board_struct
*board
= dev
->board_ptr
;
2898 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_START
, NISTC_RESET_REG
);
2901 /* fast CPU interface--only eseries */
2902 /* ((slow CPU interface) ? 0 : AO_Fast_CPU) | */
2903 NISTC_AO_PERSONAL_BC_SRC_SEL
|
2904 0 /* (use_original_pulse ? 0 : NISTC_AO_PERSONAL_UPDATE_TIMEBASE) */ |
2906 * FIXME: start setting following bit when appropriate. Need to
2907 * determine whether board is E4 or E1.
2909 * if board is E4 or E1
2910 * Set bit "NISTC_AO_PERSONAL_UPDATE_PW" to 0
2914 NISTC_AO_PERSONAL_UPDATE_PW
|
2915 /* FIXME: when should we set following bit to zero? */
2916 NISTC_AO_PERSONAL_TMRDACWR_PW
|
2917 (board
->ao_fifo_depth
?
2918 NISTC_AO_PERSONAL_FIFO_ENA
: NISTC_AO_PERSONAL_DMA_PIO_CTRL
)
2923 * add something like ".has_individual_dacs = 0" to ni_board_struct
2924 * since, as F Hess pointed out, not all in m series have singles. not
2925 * sure if e-series all have duals...
2929 * F Hess: windows driver does not set NISTC_AO_PERSONAL_NUM_DAC bit for
2930 * 6281, verified with bus analyzer.
2932 if (devpriv
->is_m_series
)
2933 bits
|= NISTC_AO_PERSONAL_NUM_DAC
;
2935 ni_stc_writew(dev
, bits
, NISTC_AO_PERSONAL_REG
);
2937 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_END
, NISTC_RESET_REG
);
2940 static void ni_ao_cmd_set_trigger(struct comedi_device
*dev
,
2941 const struct comedi_cmd
*cmd
)
2943 struct ni_private
*devpriv
= dev
->private;
2944 unsigned int trigsel
;
2946 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_START
, NISTC_RESET_REG
);
2949 if (cmd
->stop_src
== TRIG_NONE
) {
2950 devpriv
->ao_mode1
|= NISTC_AO_MODE1_CONTINUOUS
;
2951 devpriv
->ao_mode1
&= ~NISTC_AO_MODE1_TRIGGER_ONCE
;
2953 devpriv
->ao_mode1
&= ~NISTC_AO_MODE1_CONTINUOUS
;
2954 devpriv
->ao_mode1
|= NISTC_AO_MODE1_TRIGGER_ONCE
;
2956 ni_stc_writew(dev
, devpriv
->ao_mode1
, NISTC_AO_MODE1_REG
);
2958 if (cmd
->start_src
== TRIG_INT
) {
2959 trigsel
= NISTC_AO_TRIG_START1_EDGE
|
2960 NISTC_AO_TRIG_START1_SYNC
;
2961 } else { /* TRIG_EXT */
2962 trigsel
= NISTC_AO_TRIG_START1_SEL(CR_CHAN(cmd
->start_arg
) + 1);
2963 /* 0=active high, 1=active low. see daq-stc 3-24 (p186) */
2964 if (cmd
->start_arg
& CR_INVERT
)
2965 trigsel
|= NISTC_AO_TRIG_START1_POLARITY
;
2966 /* 0=edge detection disabled, 1=enabled */
2967 if (cmd
->start_arg
& CR_EDGE
)
2968 trigsel
|= NISTC_AO_TRIG_START1_EDGE
;
2970 ni_stc_writew(dev
, trigsel
, NISTC_AO_TRIG_SEL_REG
);
2972 /* AO_Delayed_START1 = 0, we do not support delayed start...yet */
2975 /* select DA_START1 as PFI6/AO_START1 when configured as an output */
2976 devpriv
->ao_mode3
&= ~NISTC_AO_MODE3_TRIG_LEN
;
2977 ni_stc_writew(dev
, devpriv
->ao_mode3
, NISTC_AO_MODE3_REG
);
2979 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_END
, NISTC_RESET_REG
);
2982 static void ni_ao_cmd_set_counters(struct comedi_device
*dev
,
2983 const struct comedi_cmd
*cmd
)
2985 struct ni_private
*devpriv
= dev
->private;
2986 /* Not supporting 'waveform staging' or 'local buffer with pauses' */
2988 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_START
, NISTC_RESET_REG
);
2990 * This relies on ao_mode1/(Trigger_Once | Continuous) being set in
2991 * set_trigger above. It is unclear whether we really need to re-write
2992 * this register with these values. The mhddk examples for e-series
2993 * show writing this in both places, but the examples for m-series show
2994 * a single write in the set_counters function (here).
2996 ni_stc_writew(dev
, devpriv
->ao_mode1
, NISTC_AO_MODE1_REG
);
2998 /* sync (upload number of buffer iterations -1) */
2999 /* indicate that we want to use BC_Load_A_Register as the source */
3000 devpriv
->ao_mode2
&= ~NISTC_AO_MODE2_BC_INIT_LOAD_SRC
;
3001 ni_stc_writew(dev
, devpriv
->ao_mode2
, NISTC_AO_MODE2_REG
);
3004 * if the BC_TC interrupt is still issued in spite of UC, BC, UI
3005 * ignoring BC_TC, then we will need to find a way to ignore that
3006 * interrupt in continuous mode.
3008 ni_stc_writel(dev
, 0, NISTC_AO_BC_LOADA_REG
); /* iter once */
3010 /* sync (issue command to load number of buffer iterations -1) */
3011 ni_stc_writew(dev
, NISTC_AO_CMD1_BC_LOAD
, NISTC_AO_CMD1_REG
);
3013 /* sync (upload number of updates in buffer) */
3014 /* indicate that we want to use UC_Load_A_Register as the source */
3015 devpriv
->ao_mode2
&= ~NISTC_AO_MODE2_UC_INIT_LOAD_SRC
;
3016 ni_stc_writew(dev
, devpriv
->ao_mode2
, NISTC_AO_MODE2_REG
);
3019 * if a user specifies '0', this automatically assumes the entire 24bit
3020 * address space is available for the (multiple iterations of single
3021 * buffer) MISB. Otherwise, stop_arg specifies the MISB length that
3022 * will be used, regardless of whether we are in continuous mode or not.
3023 * In continuous mode, the output will just iterate indefinitely over
3027 unsigned int stop_arg
= cmd
->stop_arg
> 0 ?
3028 (cmd
->stop_arg
& 0xffffff) : 0xffffff;
3030 if (devpriv
->is_m_series
) {
3032 * this is how the NI example code does it for m-series
3033 * boards, verified correct with 6259
3035 ni_stc_writel(dev
, stop_arg
- 1, NISTC_AO_UC_LOADA_REG
);
3037 /* sync (issue cmd to load number of updates in MISB) */
3038 ni_stc_writew(dev
, NISTC_AO_CMD1_UC_LOAD
,
3041 ni_stc_writel(dev
, stop_arg
, NISTC_AO_UC_LOADA_REG
);
3043 /* sync (issue cmd to load number of updates in MISB) */
3044 ni_stc_writew(dev
, NISTC_AO_CMD1_UC_LOAD
,
3048 * sync (upload number of updates-1 in MISB)
3051 ni_stc_writel(dev
, stop_arg
- 1, NISTC_AO_UC_LOADA_REG
);
3055 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_END
, NISTC_RESET_REG
);
3058 static void ni_ao_cmd_set_update(struct comedi_device
*dev
,
3059 const struct comedi_cmd
*cmd
)
3061 struct ni_private
*devpriv
= dev
->private;
3063 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_START
, NISTC_RESET_REG
);
3066 * zero out these bit fields to be set below. Does an ao-reset do this
3069 devpriv
->ao_mode1
&= ~(
3070 NISTC_AO_MODE1_UI_SRC_MASK
|
3071 NISTC_AO_MODE1_UI_SRC_POLARITY
|
3072 NISTC_AO_MODE1_UPDATE_SRC_MASK
|
3073 NISTC_AO_MODE1_UPDATE_SRC_POLARITY
3076 if (cmd
->scan_begin_src
== TRIG_TIMER
) {
3077 unsigned int trigvar
;
3079 devpriv
->ao_cmd2
&= ~NISTC_AO_CMD2_BC_GATE_ENA
;
3082 * NOTE: there are several other ways of configuring internal
3083 * updates, but we'll only support one for now: using
3084 * AO_IN_TIMEBASE, w/o waveform staging, w/o a delay between
3085 * START1 and first update, and also w/o local buffer mode w/
3090 * This is already done above:
3091 * devpriv->ao_mode1 &= ~(
3092 * // set UPDATE_Source to UI_TC:
3093 * NISTC_AO_MODE1_UPDATE_SRC_MASK |
3094 * // set UPDATE_Source_Polarity to rising (required?)
3095 * NISTC_AO_MODE1_UPDATE_SRC_POLARITY |
3096 * // set UI_Source to AO_IN_TIMEBASE1:
3097 * NISTC_AO_MODE1_UI_SRC_MASK |
3098 * // set UI_Source_Polarity to rising (required?)
3099 * NISTC_AO_MODE1_UI_SRC_POLARITY
3104 * TODO: use ao_ui_clock_source to allow all possible signals
3105 * to be routed to UI_Source_Select. See tSTC.h for
3106 * eseries/ni67xx and tMSeries.h for mseries.
3109 trigvar
= ni_ns_to_timer(dev
, cmd
->scan_begin_arg
,
3110 CMDF_ROUND_NEAREST
);
3113 * Wait N TB3 ticks after the start trigger before
3114 * clocking (N must be >=2).
3116 /* following line: 2-1 per STC */
3117 ni_stc_writel(dev
, 1, NISTC_AO_UI_LOADA_REG
);
3118 ni_stc_writew(dev
, NISTC_AO_CMD1_UI_LOAD
, NISTC_AO_CMD1_REG
);
3119 /* following line: N-1 per STC */
3120 ni_stc_writel(dev
, trigvar
- 1, NISTC_AO_UI_LOADA_REG
);
3121 } else { /* TRIG_EXT */
3122 /* FIXME: assert scan_begin_arg != 0, ret failure otherwise */
3123 devpriv
->ao_cmd2
|= NISTC_AO_CMD2_BC_GATE_ENA
;
3124 devpriv
->ao_mode1
|= NISTC_AO_MODE1_UPDATE_SRC(
3125 CR_CHAN(cmd
->scan_begin_arg
));
3126 if (cmd
->scan_begin_arg
& CR_INVERT
)
3127 devpriv
->ao_mode1
|= NISTC_AO_MODE1_UPDATE_SRC_POLARITY
;
3130 ni_stc_writew(dev
, devpriv
->ao_cmd2
, NISTC_AO_CMD2_REG
);
3131 ni_stc_writew(dev
, devpriv
->ao_mode1
, NISTC_AO_MODE1_REG
);
3132 devpriv
->ao_mode2
&= ~(NISTC_AO_MODE2_UI_RELOAD_MODE(3) |
3133 NISTC_AO_MODE2_UI_INIT_LOAD_SRC
);
3134 ni_stc_writew(dev
, devpriv
->ao_mode2
, NISTC_AO_MODE2_REG
);
3136 /* Configure DAQ-STC for Timed update mode */
3137 devpriv
->ao_cmd1
|= NISTC_AO_CMD1_DAC1_UPDATE_MODE
|
3138 NISTC_AO_CMD1_DAC0_UPDATE_MODE
;
3139 /* We are not using UPDATE2-->don't have to set DACx_Source_Select */
3140 ni_stc_writew(dev
, devpriv
->ao_cmd1
, NISTC_AO_CMD1_REG
);
3142 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_END
, NISTC_RESET_REG
);
3145 static void ni_ao_cmd_set_channels(struct comedi_device
*dev
,
3146 struct comedi_subdevice
*s
)
3148 struct ni_private
*devpriv
= dev
->private;
3149 const struct comedi_cmd
*cmd
= &s
->async
->cmd
;
3150 unsigned int bits
= 0;
3152 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_START
, NISTC_RESET_REG
);
3154 if (devpriv
->is_6xxx
) {
3158 for (i
= 0; i
< cmd
->chanlist_len
; ++i
) {
3159 int chan
= CR_CHAN(cmd
->chanlist
[i
]);
3162 ni_ao_win_outw(dev
, chan
, NI611X_AO_WAVEFORM_GEN_REG
);
3164 ni_ao_win_outw(dev
, bits
, NI611X_AO_TIMED_REG
);
3167 ni_ao_config_chanlist(dev
, s
, cmd
->chanlist
, cmd
->chanlist_len
, 1);
3169 if (cmd
->scan_end_arg
> 1) {
3170 devpriv
->ao_mode1
|= NISTC_AO_MODE1_MULTI_CHAN
;
3171 bits
= NISTC_AO_OUT_CTRL_CHANS(cmd
->scan_end_arg
- 1)
3172 | NISTC_AO_OUT_CTRL_UPDATE_SEL_HIGHZ
;
3175 devpriv
->ao_mode1
&= ~NISTC_AO_MODE1_MULTI_CHAN
;
3176 bits
= NISTC_AO_OUT_CTRL_UPDATE_SEL_HIGHZ
;
3177 if (devpriv
->is_m_series
| devpriv
->is_6xxx
)
3178 bits
|= NISTC_AO_OUT_CTRL_CHANS(0);
3180 bits
|= NISTC_AO_OUT_CTRL_CHANS(
3181 CR_CHAN(cmd
->chanlist
[0]));
3184 ni_stc_writew(dev
, devpriv
->ao_mode1
, NISTC_AO_MODE1_REG
);
3185 ni_stc_writew(dev
, bits
, NISTC_AO_OUT_CTRL_REG
);
3187 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_END
, NISTC_RESET_REG
);
3190 static void ni_ao_cmd_set_stop_conditions(struct comedi_device
*dev
,
3191 const struct comedi_cmd
*cmd
)
3193 struct ni_private
*devpriv
= dev
->private;
3195 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_START
, NISTC_RESET_REG
);
3197 devpriv
->ao_mode3
|= NISTC_AO_MODE3_STOP_ON_OVERRUN_ERR
;
3198 ni_stc_writew(dev
, devpriv
->ao_mode3
, NISTC_AO_MODE3_REG
);
3201 * Since we are not supporting waveform staging, we ignore these errors:
3202 * NISTC_AO_MODE3_STOP_ON_BC_TC_ERR,
3203 * NISTC_AO_MODE3_STOP_ON_BC_TC_TRIG_ERR
3206 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_END
, NISTC_RESET_REG
);
3209 static void ni_ao_cmd_set_fifo_mode(struct comedi_device
*dev
)
3211 struct ni_private
*devpriv
= dev
->private;
3213 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_START
, NISTC_RESET_REG
);
3215 devpriv
->ao_mode2
&= ~NISTC_AO_MODE2_FIFO_MODE_MASK
;
3217 devpriv
->ao_mode2
|= NISTC_AO_MODE2_FIFO_MODE_HF_F
;
3219 devpriv
->ao_mode2
|= NISTC_AO_MODE2_FIFO_MODE_HF
;
3221 /* NOTE: this is where use_onboard_memory=True would be implemented */
3222 devpriv
->ao_mode2
&= ~NISTC_AO_MODE2_FIFO_REXMIT_ENA
;
3223 ni_stc_writew(dev
, devpriv
->ao_mode2
, NISTC_AO_MODE2_REG
);
3225 /* enable sending of ao fifo requests (dma request) */
3226 ni_stc_writew(dev
, NISTC_AO_START_AOFREQ_ENA
, NISTC_AO_START_SEL_REG
);
3228 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_END
, NISTC_RESET_REG
);
3230 /* we are not supporting boards with virtual fifos */
3233 static void ni_ao_cmd_set_interrupts(struct comedi_device
*dev
,
3234 struct comedi_subdevice
*s
)
3236 if (s
->async
->cmd
.stop_src
== TRIG_COUNT
)
3237 ni_set_bits(dev
, NISTC_INTB_ENA_REG
,
3238 NISTC_INTB_ENA_AO_BC_TC
, 1);
3240 s
->async
->inttrig
= ni_ao_inttrig
;
3243 static int ni_ao_cmd(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
3245 struct ni_private
*devpriv
= dev
->private;
3246 const struct comedi_cmd
*cmd
= &s
->async
->cmd
;
3248 if (dev
->irq
== 0) {
3249 dev_err(dev
->class_dev
, "cannot run command without an irq");
3253 /* ni_ao_reset should have already been done */
3254 ni_ao_cmd_personalize(dev
, cmd
);
3255 /* clearing fifo and preload happens elsewhere */
3257 ni_ao_cmd_set_trigger(dev
, cmd
);
3258 ni_ao_cmd_set_counters(dev
, cmd
);
3259 ni_ao_cmd_set_update(dev
, cmd
);
3260 ni_ao_cmd_set_channels(dev
, s
);
3261 ni_ao_cmd_set_stop_conditions(dev
, cmd
);
3262 ni_ao_cmd_set_fifo_mode(dev
);
3263 ni_cmd_set_mite_transfer(devpriv
->ao_mite_ring
, s
, cmd
, 0x00ffffff);
3264 ni_ao_cmd_set_interrupts(dev
, s
);
3267 * arm(ing) must happen later so that DMA can be setup and DACs
3268 * preloaded with the actual output buffer before starting.
3270 * start(ing) must happen _after_ arming is completed. Starting can be
3271 * done either via ni_ao_inttrig, or via an external trigger.
3273 * **Currently, ni_ao_inttrig will automatically attempt a call to
3274 * ni_ao_arm if the device still needs arming at that point. This
3275 * allows backwards compatibility.
3277 devpriv
->ao_needs_arming
= 1;
3283 static int ni_ao_cmdtest(struct comedi_device
*dev
, struct comedi_subdevice
*s
,
3284 struct comedi_cmd
*cmd
)
3286 const struct ni_board_struct
*board
= dev
->board_ptr
;
3287 struct ni_private
*devpriv
= dev
->private;
3291 /* Step 1 : check if triggers are trivially valid */
3293 err
|= comedi_check_trigger_src(&cmd
->start_src
, TRIG_INT
| TRIG_EXT
);
3294 err
|= comedi_check_trigger_src(&cmd
->scan_begin_src
,
3295 TRIG_TIMER
| TRIG_EXT
);
3296 err
|= comedi_check_trigger_src(&cmd
->convert_src
, TRIG_NOW
);
3297 err
|= comedi_check_trigger_src(&cmd
->scan_end_src
, TRIG_COUNT
);
3298 err
|= comedi_check_trigger_src(&cmd
->stop_src
, TRIG_COUNT
| TRIG_NONE
);
3303 /* Step 2a : make sure trigger sources are unique */
3305 err
|= comedi_check_trigger_is_unique(cmd
->start_src
);
3306 err
|= comedi_check_trigger_is_unique(cmd
->scan_begin_src
);
3307 err
|= comedi_check_trigger_is_unique(cmd
->stop_src
);
3309 /* Step 2b : and mutually compatible */
3314 /* Step 3: check if arguments are trivially valid */
3316 switch (cmd
->start_src
) {
3318 err
|= comedi_check_trigger_arg_is(&cmd
->start_arg
, 0);
3321 tmp
= CR_CHAN(cmd
->start_arg
);
3325 tmp
|= (cmd
->start_arg
& (CR_INVERT
| CR_EDGE
));
3326 err
|= comedi_check_trigger_arg_is(&cmd
->start_arg
, tmp
);
3330 if (cmd
->scan_begin_src
== TRIG_TIMER
) {
3331 err
|= comedi_check_trigger_arg_min(&cmd
->scan_begin_arg
,
3333 err
|= comedi_check_trigger_arg_max(&cmd
->scan_begin_arg
,
3338 err
|= comedi_check_trigger_arg_is(&cmd
->convert_arg
, 0);
3339 err
|= comedi_check_trigger_arg_is(&cmd
->scan_end_arg
,
3341 err
|= comedi_check_trigger_arg_max(&cmd
->stop_arg
, 0x00ffffff);
3346 /* step 4: fix up any arguments */
3347 if (cmd
->scan_begin_src
== TRIG_TIMER
) {
3348 tmp
= cmd
->scan_begin_arg
;
3349 cmd
->scan_begin_arg
=
3350 ni_timer_to_ns(dev
, ni_ns_to_timer(dev
,
3351 cmd
->scan_begin_arg
,
3353 if (tmp
!= cmd
->scan_begin_arg
)
3362 static int ni_ao_reset(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
3364 /* See 3.6.1.2 "Resetting", of DAQ-STC Technical Reference Manual */
3367 * In the following, the "--sync" comments are meant to denote
3368 * asynchronous boundaries for setting the registers as described in the
3369 * DAQ-STC mostly in the order also described in the DAQ-STC.
3372 struct ni_private
*devpriv
= dev
->private;
3374 ni_release_ao_mite_channel(dev
);
3376 /* --sync (reset AO) */
3377 if (devpriv
->is_m_series
)
3378 /* following example in mhddk for m-series */
3379 ni_stc_writew(dev
, NISTC_RESET_AO
, NISTC_RESET_REG
);
3381 /*--sync (start config) */
3382 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_START
, NISTC_RESET_REG
);
3384 /*--sync (Disarm) */
3385 ni_stc_writew(dev
, NISTC_AO_CMD1_DISARM
, NISTC_AO_CMD1_REG
);
3389 * (clear bunch of registers--mseries mhddk examples do not include
3392 devpriv
->ao_cmd1
= 0;
3393 devpriv
->ao_cmd2
= 0;
3394 devpriv
->ao_mode1
= 0;
3395 devpriv
->ao_mode2
= 0;
3396 if (devpriv
->is_m_series
)
3397 devpriv
->ao_mode3
= NISTC_AO_MODE3_LAST_GATE_DISABLE
;
3399 devpriv
->ao_mode3
= 0;
3401 ni_stc_writew(dev
, 0, NISTC_AO_PERSONAL_REG
);
3402 ni_stc_writew(dev
, 0, NISTC_AO_CMD1_REG
);
3403 ni_stc_writew(dev
, 0, NISTC_AO_CMD2_REG
);
3404 ni_stc_writew(dev
, 0, NISTC_AO_MODE1_REG
);
3405 ni_stc_writew(dev
, 0, NISTC_AO_MODE2_REG
);
3406 ni_stc_writew(dev
, 0, NISTC_AO_OUT_CTRL_REG
);
3407 ni_stc_writew(dev
, devpriv
->ao_mode3
, NISTC_AO_MODE3_REG
);
3408 ni_stc_writew(dev
, 0, NISTC_AO_START_SEL_REG
);
3409 ni_stc_writew(dev
, 0, NISTC_AO_TRIG_SEL_REG
);
3411 /*--sync (disable interrupts) */
3412 ni_set_bits(dev
, NISTC_INTB_ENA_REG
, ~0, 0);
3415 ni_stc_writew(dev
, NISTC_AO_PERSONAL_BC_SRC_SEL
, NISTC_AO_PERSONAL_REG
);
3416 ni_stc_writew(dev
, NISTC_INTB_ACK_AO_ALL
, NISTC_INTB_ACK_REG
);
3418 /*--not in DAQ-STC. which doc? */
3419 if (devpriv
->is_6xxx
) {
3420 ni_ao_win_outw(dev
, (1u << s
->n_chan
) - 1u,
3421 NI671X_AO_IMMEDIATE_REG
);
3422 ni_ao_win_outw(dev
, NI611X_AO_MISC_CLEAR_WG
,
3423 NI611X_AO_MISC_REG
);
3425 ni_stc_writew(dev
, NISTC_RESET_AO_CFG_END
, NISTC_RESET_REG
);
3433 static int ni_dio_insn_config(struct comedi_device
*dev
,
3434 struct comedi_subdevice
*s
,
3435 struct comedi_insn
*insn
,
3438 struct ni_private
*devpriv
= dev
->private;
3441 ret
= comedi_dio_insn_config(dev
, s
, insn
, data
, 0);
3445 devpriv
->dio_control
&= ~NISTC_DIO_CTRL_DIR_MASK
;
3446 devpriv
->dio_control
|= NISTC_DIO_CTRL_DIR(s
->io_bits
);
3447 ni_stc_writew(dev
, devpriv
->dio_control
, NISTC_DIO_CTRL_REG
);
3452 static int ni_dio_insn_bits(struct comedi_device
*dev
,
3453 struct comedi_subdevice
*s
,
3454 struct comedi_insn
*insn
,
3457 struct ni_private
*devpriv
= dev
->private;
3459 /* Make sure we're not using the serial part of the dio */
3460 if ((data
[0] & (NISTC_DIO_SDIN
| NISTC_DIO_SDOUT
)) &&
3461 devpriv
->serial_interval_ns
)
3464 if (comedi_dio_update_state(s
, data
)) {
3465 devpriv
->dio_output
&= ~NISTC_DIO_OUT_PARALLEL_MASK
;
3466 devpriv
->dio_output
|= NISTC_DIO_OUT_PARALLEL(s
->state
);
3467 ni_stc_writew(dev
, devpriv
->dio_output
, NISTC_DIO_OUT_REG
);
3470 data
[1] = ni_stc_readw(dev
, NISTC_DIO_IN_REG
);
3476 static int ni_m_series_dio_insn_config(struct comedi_device
*dev
,
3477 struct comedi_subdevice
*s
,
3478 struct comedi_insn
*insn
,
3483 ret
= comedi_dio_insn_config(dev
, s
, insn
, data
, 0);
3487 ni_writel(dev
, s
->io_bits
, NI_M_DIO_DIR_REG
);
3492 static int ni_m_series_dio_insn_bits(struct comedi_device
*dev
,
3493 struct comedi_subdevice
*s
,
3494 struct comedi_insn
*insn
,
3497 if (comedi_dio_update_state(s
, data
))
3498 ni_writel(dev
, s
->state
, NI_M_DIO_REG
);
3500 data
[1] = ni_readl(dev
, NI_M_DIO_REG
);
3505 static int ni_cdio_check_chanlist(struct comedi_device
*dev
,
3506 struct comedi_subdevice
*s
,
3507 struct comedi_cmd
*cmd
)
3511 for (i
= 0; i
< cmd
->chanlist_len
; ++i
) {
3512 unsigned int chan
= CR_CHAN(cmd
->chanlist
[i
]);
3521 static int ni_cdio_cmdtest(struct comedi_device
*dev
,
3522 struct comedi_subdevice
*s
, struct comedi_cmd
*cmd
)
3527 /* Step 1 : check if triggers are trivially valid */
3529 err
|= comedi_check_trigger_src(&cmd
->start_src
, TRIG_INT
);
3530 err
|= comedi_check_trigger_src(&cmd
->scan_begin_src
, TRIG_EXT
);
3531 err
|= comedi_check_trigger_src(&cmd
->convert_src
, TRIG_NOW
);
3532 err
|= comedi_check_trigger_src(&cmd
->scan_end_src
, TRIG_COUNT
);
3533 err
|= comedi_check_trigger_src(&cmd
->stop_src
, TRIG_NONE
);
3538 /* Step 2a : make sure trigger sources are unique */
3539 /* Step 2b : and mutually compatible */
3541 /* Step 3: check if arguments are trivially valid */
3543 err
|= comedi_check_trigger_arg_is(&cmd
->start_arg
, 0);
3545 tmp
= cmd
->scan_begin_arg
;
3546 tmp
&= CR_PACK_FLAGS(NI_M_CDO_MODE_SAMPLE_SRC_MASK
, 0, 0, CR_INVERT
);
3547 if (tmp
!= cmd
->scan_begin_arg
)
3550 err
|= comedi_check_trigger_arg_is(&cmd
->convert_arg
, 0);
3551 err
|= comedi_check_trigger_arg_is(&cmd
->scan_end_arg
,
3553 err
|= comedi_check_trigger_arg_max(&cmd
->stop_arg
,
3554 s
->async
->prealloc_bufsz
/
3555 comedi_bytes_per_scan(s
));
3560 /* Step 4: fix up any arguments */
3562 /* Step 5: check channel list if it exists */
3564 if (cmd
->chanlist
&& cmd
->chanlist_len
> 0)
3565 err
|= ni_cdio_check_chanlist(dev
, s
, cmd
);
3573 static int ni_cdo_inttrig(struct comedi_device
*dev
,
3574 struct comedi_subdevice
*s
,
3575 unsigned int trig_num
)
3577 struct comedi_cmd
*cmd
= &s
->async
->cmd
;
3578 const unsigned int timeout
= 1000;
3581 struct ni_private
*devpriv
= dev
->private;
3582 unsigned long flags
;
3584 if (trig_num
!= cmd
->start_arg
)
3587 s
->async
->inttrig
= NULL
;
3589 /* read alloc the entire buffer */
3590 comedi_buf_read_alloc(s
, s
->async
->prealloc_bufsz
);
3592 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
3593 if (devpriv
->cdo_mite_chan
) {
3594 mite_prep_dma(devpriv
->cdo_mite_chan
, 32, 32);
3595 mite_dma_arm(devpriv
->cdo_mite_chan
);
3597 dev_err(dev
->class_dev
, "BUG: no cdo mite channel?\n");
3600 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
3605 * XXX not sure what interrupt C group does
3606 * wait for dma to fill output fifo
3607 * ni_writeb(dev, NI_M_INTC_ENA, NI_M_INTC_ENA_REG);
3609 for (i
= 0; i
< timeout
; ++i
) {
3610 if (ni_readl(dev
, NI_M_CDIO_STATUS_REG
) &
3611 NI_M_CDIO_STATUS_CDO_FIFO_FULL
)
3613 usleep_range(10, 100);
3616 dev_err(dev
->class_dev
, "dma failed to fill cdo fifo!\n");
3620 ni_writel(dev
, NI_M_CDO_CMD_ARM
|
3621 NI_M_CDO_CMD_ERR_INT_ENA_SET
|
3622 NI_M_CDO_CMD_F_E_INT_ENA_SET
,
3627 static int ni_cdio_cmd(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
3629 struct ni_private
*devpriv
= dev
->private;
3630 const struct comedi_cmd
*cmd
= &s
->async
->cmd
;
3631 unsigned int cdo_mode_bits
;
3634 ni_writel(dev
, NI_M_CDO_CMD_RESET
, NI_M_CDIO_CMD_REG
);
3635 cdo_mode_bits
= NI_M_CDO_MODE_FIFO_MODE
|
3636 NI_M_CDO_MODE_HALT_ON_ERROR
|
3637 NI_M_CDO_MODE_SAMPLE_SRC(CR_CHAN(cmd
->scan_begin_arg
));
3638 if (cmd
->scan_begin_arg
& CR_INVERT
)
3639 cdo_mode_bits
|= NI_M_CDO_MODE_POLARITY
;
3640 ni_writel(dev
, cdo_mode_bits
, NI_M_CDO_MODE_REG
);
3642 ni_writel(dev
, s
->state
, NI_M_CDO_FIFO_DATA_REG
);
3643 ni_writel(dev
, NI_M_CDO_CMD_SW_UPDATE
, NI_M_CDIO_CMD_REG
);
3644 ni_writel(dev
, s
->io_bits
, NI_M_CDO_MASK_ENA_REG
);
3646 dev_err(dev
->class_dev
,
3647 "attempted to run digital output command with no lines configured as outputs\n");
3650 retval
= ni_request_cdo_mite_channel(dev
);
3654 ni_cmd_set_mite_transfer(devpriv
->cdo_mite_ring
, s
, cmd
,
3655 s
->async
->prealloc_bufsz
/
3656 comedi_bytes_per_scan(s
));
3658 s
->async
->inttrig
= ni_cdo_inttrig
;
3663 static int ni_cdio_cancel(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
3665 ni_writel(dev
, NI_M_CDO_CMD_DISARM
|
3666 NI_M_CDO_CMD_ERR_INT_ENA_CLR
|
3667 NI_M_CDO_CMD_F_E_INT_ENA_CLR
|
3668 NI_M_CDO_CMD_F_REQ_INT_ENA_CLR
,
3671 * XXX not sure what interrupt C group does
3672 * ni_writeb(dev, 0, NI_M_INTC_ENA_REG);
3674 ni_writel(dev
, 0, NI_M_CDO_MASK_ENA_REG
);
3675 ni_release_cdo_mite_channel(dev
);
3679 static void handle_cdio_interrupt(struct comedi_device
*dev
)
3681 struct ni_private
*devpriv
= dev
->private;
3682 unsigned int cdio_status
;
3683 struct comedi_subdevice
*s
= &dev
->subdevices
[NI_DIO_SUBDEV
];
3684 unsigned long flags
;
3686 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
3687 if (devpriv
->cdo_mite_chan
)
3688 mite_ack_linkc(devpriv
->cdo_mite_chan
, s
, true);
3689 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
3691 cdio_status
= ni_readl(dev
, NI_M_CDIO_STATUS_REG
);
3692 if (cdio_status
& NI_M_CDIO_STATUS_CDO_ERROR
) {
3693 /* XXX just guessing this is needed and does something useful */
3694 ni_writel(dev
, NI_M_CDO_CMD_ERR_INT_CONFIRM
,
3696 s
->async
->events
|= COMEDI_CB_OVERFLOW
;
3698 if (cdio_status
& NI_M_CDIO_STATUS_CDO_FIFO_EMPTY
) {
3699 ni_writel(dev
, NI_M_CDO_CMD_F_E_INT_ENA_CLR
,
3701 /* s->async->events |= COMEDI_CB_EOA; */
3703 comedi_handle_events(dev
, s
);
3707 static int ni_serial_hw_readwrite8(struct comedi_device
*dev
,
3708 struct comedi_subdevice
*s
,
3709 unsigned char data_out
,
3710 unsigned char *data_in
)
3712 struct ni_private
*devpriv
= dev
->private;
3713 unsigned int status1
;
3714 int err
= 0, count
= 20;
3716 devpriv
->dio_output
&= ~NISTC_DIO_OUT_SERIAL_MASK
;
3717 devpriv
->dio_output
|= NISTC_DIO_OUT_SERIAL(data_out
);
3718 ni_stc_writew(dev
, devpriv
->dio_output
, NISTC_DIO_OUT_REG
);
3720 status1
= ni_stc_readw(dev
, NISTC_STATUS1_REG
);
3721 if (status1
& NISTC_STATUS1_SERIO_IN_PROG
) {
3726 devpriv
->dio_control
|= NISTC_DIO_CTRL_HW_SER_START
;
3727 ni_stc_writew(dev
, devpriv
->dio_control
, NISTC_DIO_CTRL_REG
);
3728 devpriv
->dio_control
&= ~NISTC_DIO_CTRL_HW_SER_START
;
3730 /* Wait until STC says we're done, but don't loop infinitely. */
3731 while ((status1
= ni_stc_readw(dev
, NISTC_STATUS1_REG
)) &
3732 NISTC_STATUS1_SERIO_IN_PROG
) {
3733 /* Delay one bit per loop */
3734 udelay((devpriv
->serial_interval_ns
+ 999) / 1000);
3736 dev_err(dev
->class_dev
,
3737 "SPI serial I/O didn't finish in time!\n");
3744 * Delay for last bit. This delay is absolutely necessary, because
3745 * NISTC_STATUS1_SERIO_IN_PROG goes high one bit too early.
3747 udelay((devpriv
->serial_interval_ns
+ 999) / 1000);
3750 *data_in
= ni_stc_readw(dev
, NISTC_DIO_SERIAL_IN_REG
);
3753 ni_stc_writew(dev
, devpriv
->dio_control
, NISTC_DIO_CTRL_REG
);
3758 static int ni_serial_sw_readwrite8(struct comedi_device
*dev
,
3759 struct comedi_subdevice
*s
,
3760 unsigned char data_out
,
3761 unsigned char *data_in
)
3763 struct ni_private
*devpriv
= dev
->private;
3764 unsigned char mask
, input
= 0;
3766 /* Wait for one bit before transfer */
3767 udelay((devpriv
->serial_interval_ns
+ 999) / 1000);
3769 for (mask
= 0x80; mask
; mask
>>= 1) {
3771 * Output current bit; note that we cannot touch s->state
3772 * because it is a per-subdevice field, and serial is
3773 * a separate subdevice from DIO.
3775 devpriv
->dio_output
&= ~NISTC_DIO_SDOUT
;
3776 if (data_out
& mask
)
3777 devpriv
->dio_output
|= NISTC_DIO_SDOUT
;
3778 ni_stc_writew(dev
, devpriv
->dio_output
, NISTC_DIO_OUT_REG
);
3781 * Assert SDCLK (active low, inverted), wait for half of
3782 * the delay, deassert SDCLK, and wait for the other half.
3784 devpriv
->dio_control
|= NISTC_DIO_SDCLK
;
3785 ni_stc_writew(dev
, devpriv
->dio_control
, NISTC_DIO_CTRL_REG
);
3787 udelay((devpriv
->serial_interval_ns
+ 999) / 2000);
3789 devpriv
->dio_control
&= ~NISTC_DIO_SDCLK
;
3790 ni_stc_writew(dev
, devpriv
->dio_control
, NISTC_DIO_CTRL_REG
);
3792 udelay((devpriv
->serial_interval_ns
+ 999) / 2000);
3794 /* Input current bit */
3795 if (ni_stc_readw(dev
, NISTC_DIO_IN_REG
) & NISTC_DIO_SDIN
)
3805 static int ni_serial_insn_config(struct comedi_device
*dev
,
3806 struct comedi_subdevice
*s
,
3807 struct comedi_insn
*insn
,
3810 struct ni_private
*devpriv
= dev
->private;
3811 unsigned int clk_fout
= devpriv
->clock_and_fout
;
3813 unsigned char byte_out
, byte_in
= 0;
3819 case INSN_CONFIG_SERIAL_CLOCK
:
3820 devpriv
->serial_hw_mode
= 1;
3821 devpriv
->dio_control
|= NISTC_DIO_CTRL_HW_SER_ENA
;
3823 if (data
[1] == SERIAL_DISABLED
) {
3824 devpriv
->serial_hw_mode
= 0;
3825 devpriv
->dio_control
&= ~(NISTC_DIO_CTRL_HW_SER_ENA
|
3827 data
[1] = SERIAL_DISABLED
;
3828 devpriv
->serial_interval_ns
= data
[1];
3829 } else if (data
[1] <= SERIAL_600NS
) {
3831 * Warning: this clock speed is too fast to reliably
3834 devpriv
->dio_control
&= ~NISTC_DIO_CTRL_HW_SER_TIMEBASE
;
3835 clk_fout
|= NISTC_CLK_FOUT_SLOW_TIMEBASE
;
3836 clk_fout
&= ~NISTC_CLK_FOUT_DIO_SER_OUT_DIV2
;
3837 data
[1] = SERIAL_600NS
;
3838 devpriv
->serial_interval_ns
= data
[1];
3839 } else if (data
[1] <= SERIAL_1_2US
) {
3840 devpriv
->dio_control
&= ~NISTC_DIO_CTRL_HW_SER_TIMEBASE
;
3841 clk_fout
|= NISTC_CLK_FOUT_SLOW_TIMEBASE
|
3842 NISTC_CLK_FOUT_DIO_SER_OUT_DIV2
;
3843 data
[1] = SERIAL_1_2US
;
3844 devpriv
->serial_interval_ns
= data
[1];
3845 } else if (data
[1] <= SERIAL_10US
) {
3846 devpriv
->dio_control
|= NISTC_DIO_CTRL_HW_SER_TIMEBASE
;
3847 clk_fout
|= NISTC_CLK_FOUT_SLOW_TIMEBASE
|
3848 NISTC_CLK_FOUT_DIO_SER_OUT_DIV2
;
3850 * Note: NISTC_CLK_FOUT_DIO_SER_OUT_DIV2 only affects
3851 * 600ns/1.2us. If you turn divide_by_2 off with the
3852 * slow clock, you will still get 10us, except then
3853 * all your delays are wrong.
3855 data
[1] = SERIAL_10US
;
3856 devpriv
->serial_interval_ns
= data
[1];
3858 devpriv
->dio_control
&= ~(NISTC_DIO_CTRL_HW_SER_ENA
|
3860 devpriv
->serial_hw_mode
= 0;
3861 data
[1] = (data
[1] / 1000) * 1000;
3862 devpriv
->serial_interval_ns
= data
[1];
3864 devpriv
->clock_and_fout
= clk_fout
;
3866 ni_stc_writew(dev
, devpriv
->dio_control
, NISTC_DIO_CTRL_REG
);
3867 ni_stc_writew(dev
, devpriv
->clock_and_fout
, NISTC_CLK_FOUT_REG
);
3870 case INSN_CONFIG_BIDIRECTIONAL_DATA
:
3872 if (devpriv
->serial_interval_ns
== 0)
3875 byte_out
= data
[1] & 0xFF;
3877 if (devpriv
->serial_hw_mode
) {
3878 err
= ni_serial_hw_readwrite8(dev
, s
, byte_out
,
3880 } else if (devpriv
->serial_interval_ns
> 0) {
3881 err
= ni_serial_sw_readwrite8(dev
, s
, byte_out
,
3884 dev_err(dev
->class_dev
, "serial disabled!\n");
3889 data
[1] = byte_in
& 0xFF;
3898 static void init_ao_67xx(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
3902 for (i
= 0; i
< s
->n_chan
; i
++) {
3903 ni_ao_win_outw(dev
, NI_E_AO_DACSEL(i
) | 0x0,
3904 NI67XX_AO_CFG2_REG
);
3906 ni_ao_win_outw(dev
, 0x0, NI67XX_AO_SP_UPDATES_REG
);
3909 static const struct mio_regmap ni_gpct_to_stc_regmap
[] = {
3910 [NITIO_G0_AUTO_INC
] = { NISTC_G0_AUTOINC_REG
, 2 },
3911 [NITIO_G1_AUTO_INC
] = { NISTC_G1_AUTOINC_REG
, 2 },
3912 [NITIO_G0_CMD
] = { NISTC_G0_CMD_REG
, 2 },
3913 [NITIO_G1_CMD
] = { NISTC_G1_CMD_REG
, 2 },
3914 [NITIO_G0_HW_SAVE
] = { NISTC_G0_HW_SAVE_REG
, 4 },
3915 [NITIO_G1_HW_SAVE
] = { NISTC_G1_HW_SAVE_REG
, 4 },
3916 [NITIO_G0_SW_SAVE
] = { NISTC_G0_SAVE_REG
, 4 },
3917 [NITIO_G1_SW_SAVE
] = { NISTC_G1_SAVE_REG
, 4 },
3918 [NITIO_G0_MODE
] = { NISTC_G0_MODE_REG
, 2 },
3919 [NITIO_G1_MODE
] = { NISTC_G1_MODE_REG
, 2 },
3920 [NITIO_G0_LOADA
] = { NISTC_G0_LOADA_REG
, 4 },
3921 [NITIO_G1_LOADA
] = { NISTC_G1_LOADA_REG
, 4 },
3922 [NITIO_G0_LOADB
] = { NISTC_G0_LOADB_REG
, 4 },
3923 [NITIO_G1_LOADB
] = { NISTC_G1_LOADB_REG
, 4 },
3924 [NITIO_G0_INPUT_SEL
] = { NISTC_G0_INPUT_SEL_REG
, 2 },
3925 [NITIO_G1_INPUT_SEL
] = { NISTC_G1_INPUT_SEL_REG
, 2 },
3926 [NITIO_G0_CNT_MODE
] = { 0x1b0, 2 }, /* M-Series only */
3927 [NITIO_G1_CNT_MODE
] = { 0x1b2, 2 }, /* M-Series only */
3928 [NITIO_G0_GATE2
] = { 0x1b4, 2 }, /* M-Series only */
3929 [NITIO_G1_GATE2
] = { 0x1b6, 2 }, /* M-Series only */
3930 [NITIO_G01_STATUS
] = { NISTC_G01_STATUS_REG
, 2 },
3931 [NITIO_G01_RESET
] = { NISTC_RESET_REG
, 2 },
3932 [NITIO_G01_STATUS1
] = { NISTC_STATUS1_REG
, 2 },
3933 [NITIO_G01_STATUS2
] = { NISTC_STATUS2_REG
, 2 },
3934 [NITIO_G0_DMA_CFG
] = { 0x1b8, 2 }, /* M-Series only */
3935 [NITIO_G1_DMA_CFG
] = { 0x1ba, 2 }, /* M-Series only */
3936 [NITIO_G0_DMA_STATUS
] = { 0x1b8, 2 }, /* M-Series only */
3937 [NITIO_G1_DMA_STATUS
] = { 0x1ba, 2 }, /* M-Series only */
3938 [NITIO_G0_ABZ
] = { 0x1c0, 2 }, /* M-Series only */
3939 [NITIO_G1_ABZ
] = { 0x1c2, 2 }, /* M-Series only */
3940 [NITIO_G0_INT_ACK
] = { NISTC_INTA_ACK_REG
, 2 },
3941 [NITIO_G1_INT_ACK
] = { NISTC_INTB_ACK_REG
, 2 },
3942 [NITIO_G0_STATUS
] = { NISTC_AI_STATUS1_REG
, 2 },
3943 [NITIO_G1_STATUS
] = { NISTC_AO_STATUS1_REG
, 2 },
3944 [NITIO_G0_INT_ENA
] = { NISTC_INTA_ENA_REG
, 2 },
3945 [NITIO_G1_INT_ENA
] = { NISTC_INTB_ENA_REG
, 2 },
3948 static unsigned int ni_gpct_to_stc_register(struct comedi_device
*dev
,
3949 enum ni_gpct_register reg
)
3951 const struct mio_regmap
*regmap
;
3953 if (reg
< ARRAY_SIZE(ni_gpct_to_stc_regmap
)) {
3954 regmap
= &ni_gpct_to_stc_regmap
[reg
];
3956 dev_warn(dev
->class_dev
, "%s: unhandled register=0x%x\n",
3961 return regmap
->mio_reg
;
3964 static void ni_gpct_write_register(struct ni_gpct
*counter
, unsigned int bits
,
3965 enum ni_gpct_register reg
)
3967 struct comedi_device
*dev
= counter
->counter_dev
->dev
;
3968 unsigned int stc_register
= ni_gpct_to_stc_register(dev
, reg
);
3970 if (stc_register
== 0)
3974 /* m-series only registers */
3975 case NITIO_G0_CNT_MODE
:
3976 case NITIO_G1_CNT_MODE
:
3977 case NITIO_G0_GATE2
:
3978 case NITIO_G1_GATE2
:
3979 case NITIO_G0_DMA_CFG
:
3980 case NITIO_G1_DMA_CFG
:
3983 ni_writew(dev
, bits
, stc_register
);
3986 /* 32 bit registers */
3987 case NITIO_G0_LOADA
:
3988 case NITIO_G1_LOADA
:
3989 case NITIO_G0_LOADB
:
3990 case NITIO_G1_LOADB
:
3991 ni_stc_writel(dev
, bits
, stc_register
);
3994 /* 16 bit registers */
3995 case NITIO_G0_INT_ENA
:
3996 ni_set_bitfield(dev
, stc_register
,
3997 NISTC_INTA_ENA_G0_GATE
| NISTC_INTA_ENA_G0_TC
,
4000 case NITIO_G1_INT_ENA
:
4001 ni_set_bitfield(dev
, stc_register
,
4002 NISTC_INTB_ENA_G1_GATE
| NISTC_INTB_ENA_G1_TC
,
4006 ni_stc_writew(dev
, bits
, stc_register
);
4010 static unsigned int ni_gpct_read_register(struct ni_gpct
*counter
,
4011 enum ni_gpct_register reg
)
4013 struct comedi_device
*dev
= counter
->counter_dev
->dev
;
4014 unsigned int stc_register
= ni_gpct_to_stc_register(dev
, reg
);
4016 if (stc_register
== 0)
4020 /* m-series only registers */
4021 case NITIO_G0_DMA_STATUS
:
4022 case NITIO_G1_DMA_STATUS
:
4023 return ni_readw(dev
, stc_register
);
4025 /* 32 bit registers */
4026 case NITIO_G0_HW_SAVE
:
4027 case NITIO_G1_HW_SAVE
:
4028 case NITIO_G0_SW_SAVE
:
4029 case NITIO_G1_SW_SAVE
:
4030 return ni_stc_readl(dev
, stc_register
);
4032 /* 16 bit registers */
4034 return ni_stc_readw(dev
, stc_register
);
4038 static int ni_freq_out_insn_read(struct comedi_device
*dev
,
4039 struct comedi_subdevice
*s
,
4040 struct comedi_insn
*insn
,
4043 struct ni_private
*devpriv
= dev
->private;
4044 unsigned int val
= NISTC_CLK_FOUT_TO_DIVIDER(devpriv
->clock_and_fout
);
4047 for (i
= 0; i
< insn
->n
; i
++)
4053 static int ni_freq_out_insn_write(struct comedi_device
*dev
,
4054 struct comedi_subdevice
*s
,
4055 struct comedi_insn
*insn
,
4058 struct ni_private
*devpriv
= dev
->private;
4061 unsigned int val
= data
[insn
->n
- 1];
4063 devpriv
->clock_and_fout
&= ~NISTC_CLK_FOUT_ENA
;
4064 ni_stc_writew(dev
, devpriv
->clock_and_fout
, NISTC_CLK_FOUT_REG
);
4065 devpriv
->clock_and_fout
&= ~NISTC_CLK_FOUT_DIVIDER_MASK
;
4067 /* use the last data value to set the fout divider */
4068 devpriv
->clock_and_fout
|= NISTC_CLK_FOUT_DIVIDER(val
);
4070 devpriv
->clock_and_fout
|= NISTC_CLK_FOUT_ENA
;
4071 ni_stc_writew(dev
, devpriv
->clock_and_fout
, NISTC_CLK_FOUT_REG
);
4076 static int ni_freq_out_insn_config(struct comedi_device
*dev
,
4077 struct comedi_subdevice
*s
,
4078 struct comedi_insn
*insn
,
4081 struct ni_private
*devpriv
= dev
->private;
4084 case INSN_CONFIG_SET_CLOCK_SRC
:
4086 case NI_FREQ_OUT_TIMEBASE_1_DIV_2_CLOCK_SRC
:
4087 devpriv
->clock_and_fout
&= ~NISTC_CLK_FOUT_TIMEBASE_SEL
;
4089 case NI_FREQ_OUT_TIMEBASE_2_CLOCK_SRC
:
4090 devpriv
->clock_and_fout
|= NISTC_CLK_FOUT_TIMEBASE_SEL
;
4095 ni_stc_writew(dev
, devpriv
->clock_and_fout
, NISTC_CLK_FOUT_REG
);
4097 case INSN_CONFIG_GET_CLOCK_SRC
:
4098 if (devpriv
->clock_and_fout
& NISTC_CLK_FOUT_TIMEBASE_SEL
) {
4099 data
[1] = NI_FREQ_OUT_TIMEBASE_2_CLOCK_SRC
;
4100 data
[2] = TIMEBASE_2_NS
;
4102 data
[1] = NI_FREQ_OUT_TIMEBASE_1_DIV_2_CLOCK_SRC
;
4103 data
[2] = TIMEBASE_1_NS
* 2;
4112 static int ni_8255_callback(struct comedi_device
*dev
,
4113 int dir
, int port
, int data
, unsigned long iobase
)
4116 ni_writeb(dev
, data
, iobase
+ 2 * port
);
4120 return ni_readb(dev
, iobase
+ 2 * port
);
4123 static int ni_get_pwm_config(struct comedi_device
*dev
, unsigned int *data
)
4125 struct ni_private
*devpriv
= dev
->private;
4127 data
[1] = devpriv
->pwm_up_count
* devpriv
->clock_ns
;
4128 data
[2] = devpriv
->pwm_down_count
* devpriv
->clock_ns
;
4132 static int ni_m_series_pwm_config(struct comedi_device
*dev
,
4133 struct comedi_subdevice
*s
,
4134 struct comedi_insn
*insn
,
4137 struct ni_private
*devpriv
= dev
->private;
4138 unsigned int up_count
, down_count
;
4141 case INSN_CONFIG_PWM_OUTPUT
:
4143 case CMDF_ROUND_NEAREST
:
4144 up_count
= DIV_ROUND_CLOSEST(data
[2],
4147 case CMDF_ROUND_DOWN
:
4148 up_count
= data
[2] / devpriv
->clock_ns
;
4152 DIV_ROUND_UP(data
[2], devpriv
->clock_ns
);
4158 case CMDF_ROUND_NEAREST
:
4159 down_count
= DIV_ROUND_CLOSEST(data
[4],
4162 case CMDF_ROUND_DOWN
:
4163 down_count
= data
[4] / devpriv
->clock_ns
;
4167 DIV_ROUND_UP(data
[4], devpriv
->clock_ns
);
4172 if (up_count
* devpriv
->clock_ns
!= data
[2] ||
4173 down_count
* devpriv
->clock_ns
!= data
[4]) {
4174 data
[2] = up_count
* devpriv
->clock_ns
;
4175 data
[4] = down_count
* devpriv
->clock_ns
;
4178 ni_writel(dev
, NI_M_CAL_PWM_HIGH_TIME(up_count
) |
4179 NI_M_CAL_PWM_LOW_TIME(down_count
),
4181 devpriv
->pwm_up_count
= up_count
;
4182 devpriv
->pwm_down_count
= down_count
;
4184 case INSN_CONFIG_GET_PWM_OUTPUT
:
4185 return ni_get_pwm_config(dev
, data
);
4192 static int ni_6143_pwm_config(struct comedi_device
*dev
,
4193 struct comedi_subdevice
*s
,
4194 struct comedi_insn
*insn
,
4197 struct ni_private
*devpriv
= dev
->private;
4198 unsigned int up_count
, down_count
;
4201 case INSN_CONFIG_PWM_OUTPUT
:
4203 case CMDF_ROUND_NEAREST
:
4204 up_count
= DIV_ROUND_CLOSEST(data
[2],
4207 case CMDF_ROUND_DOWN
:
4208 up_count
= data
[2] / devpriv
->clock_ns
;
4212 DIV_ROUND_UP(data
[2], devpriv
->clock_ns
);
4218 case CMDF_ROUND_NEAREST
:
4219 down_count
= DIV_ROUND_CLOSEST(data
[4],
4222 case CMDF_ROUND_DOWN
:
4223 down_count
= data
[4] / devpriv
->clock_ns
;
4227 DIV_ROUND_UP(data
[4], devpriv
->clock_ns
);
4232 if (up_count
* devpriv
->clock_ns
!= data
[2] ||
4233 down_count
* devpriv
->clock_ns
!= data
[4]) {
4234 data
[2] = up_count
* devpriv
->clock_ns
;
4235 data
[4] = down_count
* devpriv
->clock_ns
;
4238 ni_writel(dev
, up_count
, NI6143_CALIB_HI_TIME_REG
);
4239 devpriv
->pwm_up_count
= up_count
;
4240 ni_writel(dev
, down_count
, NI6143_CALIB_LO_TIME_REG
);
4241 devpriv
->pwm_down_count
= down_count
;
4243 case INSN_CONFIG_GET_PWM_OUTPUT
:
4244 return ni_get_pwm_config(dev
, data
);
4251 static int pack_mb88341(int addr
, int val
, int *bitstring
)
4255 * Note that address bits are reversed. Thanks to
4256 * Ingo Keen for noticing this.
4258 * Note also that the 88341 expects address values from
4259 * 1-12, whereas we use channel numbers 0-11. The NI
4260 * docs use 1-12, also, so be careful here.
4263 *bitstring
= ((addr
& 0x1) << 11) |
4264 ((addr
& 0x2) << 9) |
4265 ((addr
& 0x4) << 7) | ((addr
& 0x8) << 5) | (val
& 0xff);
4269 static int pack_dac8800(int addr
, int val
, int *bitstring
)
4271 *bitstring
= ((addr
& 0x7) << 8) | (val
& 0xff);
4275 static int pack_dac8043(int addr
, int val
, int *bitstring
)
4277 *bitstring
= val
& 0xfff;
4281 static int pack_ad8522(int addr
, int val
, int *bitstring
)
4283 *bitstring
= (val
& 0xfff) | (addr
? 0xc000 : 0xa000);
4287 static int pack_ad8804(int addr
, int val
, int *bitstring
)
4289 *bitstring
= ((addr
& 0xf) << 8) | (val
& 0xff);
4293 static int pack_ad8842(int addr
, int val
, int *bitstring
)
4295 *bitstring
= ((addr
+ 1) << 8) | (val
& 0xff);
4299 struct caldac_struct
{
4302 int (*packbits
)(int, int, int *);
4305 static struct caldac_struct caldacs
[] = {
4306 [mb88341
] = {12, 8, pack_mb88341
},
4307 [dac8800
] = {8, 8, pack_dac8800
},
4308 [dac8043
] = {1, 12, pack_dac8043
},
4309 [ad8522
] = {2, 12, pack_ad8522
},
4310 [ad8804
] = {12, 8, pack_ad8804
},
4311 [ad8842
] = {8, 8, pack_ad8842
},
4312 [ad8804_debug
] = {16, 8, pack_ad8804
},
4315 static void ni_write_caldac(struct comedi_device
*dev
, int addr
, int val
)
4317 const struct ni_board_struct
*board
= dev
->board_ptr
;
4318 struct ni_private
*devpriv
= dev
->private;
4319 unsigned int loadbit
= 0, bits
= 0, bit
, bitstring
= 0;
4324 if (devpriv
->caldacs
[addr
] == val
)
4326 devpriv
->caldacs
[addr
] = val
;
4328 for (i
= 0; i
< 3; i
++) {
4329 type
= board
->caldac
[i
];
4330 if (type
== caldac_none
)
4332 if (addr
< caldacs
[type
].n_chans
) {
4333 bits
= caldacs
[type
].packbits(addr
, val
, &bitstring
);
4334 loadbit
= NI_E_SERIAL_CMD_DAC_LD(i
);
4337 addr
-= caldacs
[type
].n_chans
;
4340 /* bits will be 0 if there is no caldac for the given addr */
4344 for (bit
= 1 << (bits
- 1); bit
; bit
>>= 1) {
4345 cmd
= (bit
& bitstring
) ? NI_E_SERIAL_CMD_SDATA
: 0;
4346 ni_writeb(dev
, cmd
, NI_E_SERIAL_CMD_REG
);
4348 ni_writeb(dev
, NI_E_SERIAL_CMD_SCLK
| cmd
, NI_E_SERIAL_CMD_REG
);
4351 ni_writeb(dev
, loadbit
, NI_E_SERIAL_CMD_REG
);
4353 ni_writeb(dev
, 0, NI_E_SERIAL_CMD_REG
);
4356 static int ni_calib_insn_write(struct comedi_device
*dev
,
4357 struct comedi_subdevice
*s
,
4358 struct comedi_insn
*insn
,
4361 ni_write_caldac(dev
, CR_CHAN(insn
->chanspec
), data
[0]);
4366 static int ni_calib_insn_read(struct comedi_device
*dev
,
4367 struct comedi_subdevice
*s
,
4368 struct comedi_insn
*insn
,
4371 struct ni_private
*devpriv
= dev
->private;
4373 data
[0] = devpriv
->caldacs
[CR_CHAN(insn
->chanspec
)];
4378 static void caldac_setup(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
4380 const struct ni_board_struct
*board
= dev
->board_ptr
;
4381 struct ni_private
*devpriv
= dev
->private;
4390 type
= board
->caldac
[0];
4391 if (type
== caldac_none
)
4393 n_bits
= caldacs
[type
].n_bits
;
4394 for (i
= 0; i
< 3; i
++) {
4395 type
= board
->caldac
[i
];
4396 if (type
== caldac_none
)
4398 if (caldacs
[type
].n_bits
!= n_bits
)
4400 n_chans
+= caldacs
[type
].n_chans
;
4403 s
->n_chan
= n_chans
;
4406 unsigned int *maxdata_list
= devpriv
->caldac_maxdata_list
;
4408 if (n_chans
> MAX_N_CALDACS
)
4409 dev_err(dev
->class_dev
,
4410 "BUG! MAX_N_CALDACS too small\n");
4411 s
->maxdata_list
= maxdata_list
;
4413 for (i
= 0; i
< n_dacs
; i
++) {
4414 type
= board
->caldac
[i
];
4415 for (j
= 0; j
< caldacs
[type
].n_chans
; j
++) {
4416 maxdata_list
[chan
] =
4417 (1 << caldacs
[type
].n_bits
) - 1;
4422 for (chan
= 0; chan
< s
->n_chan
; chan
++)
4423 ni_write_caldac(dev
, i
, s
->maxdata_list
[i
] / 2);
4425 type
= board
->caldac
[0];
4426 s
->maxdata
= (1 << caldacs
[type
].n_bits
) - 1;
4428 for (chan
= 0; chan
< s
->n_chan
; chan
++)
4429 ni_write_caldac(dev
, i
, s
->maxdata
/ 2);
4433 static int ni_read_eeprom(struct comedi_device
*dev
, int addr
)
4435 unsigned int cmd
= NI_E_SERIAL_CMD_EEPROM_CS
;
4439 bitstring
= 0x0300 | ((addr
& 0x100) << 3) | (addr
& 0xff);
4440 ni_writeb(dev
, cmd
, NI_E_SERIAL_CMD_REG
);
4441 for (bit
= 0x8000; bit
; bit
>>= 1) {
4442 if (bit
& bitstring
)
4443 cmd
|= NI_E_SERIAL_CMD_SDATA
;
4445 cmd
&= ~NI_E_SERIAL_CMD_SDATA
;
4447 ni_writeb(dev
, cmd
, NI_E_SERIAL_CMD_REG
);
4448 ni_writeb(dev
, NI_E_SERIAL_CMD_SCLK
| cmd
, NI_E_SERIAL_CMD_REG
);
4450 cmd
= NI_E_SERIAL_CMD_EEPROM_CS
;
4452 for (bit
= 0x80; bit
; bit
>>= 1) {
4453 ni_writeb(dev
, cmd
, NI_E_SERIAL_CMD_REG
);
4454 ni_writeb(dev
, NI_E_SERIAL_CMD_SCLK
| cmd
, NI_E_SERIAL_CMD_REG
);
4455 if (ni_readb(dev
, NI_E_STATUS_REG
) & NI_E_STATUS_PROMOUT
)
4458 ni_writeb(dev
, 0, NI_E_SERIAL_CMD_REG
);
4463 static int ni_eeprom_insn_read(struct comedi_device
*dev
,
4464 struct comedi_subdevice
*s
,
4465 struct comedi_insn
*insn
,
4468 data
[0] = ni_read_eeprom(dev
, CR_CHAN(insn
->chanspec
));
4473 static int ni_m_series_eeprom_insn_read(struct comedi_device
*dev
,
4474 struct comedi_subdevice
*s
,
4475 struct comedi_insn
*insn
,
4478 struct ni_private
*devpriv
= dev
->private;
4480 data
[0] = devpriv
->eeprom_buffer
[CR_CHAN(insn
->chanspec
)];
4485 static unsigned int ni_old_get_pfi_routing(struct comedi_device
*dev
,
4488 /* pre-m-series boards have fixed signals on pfi pins */
4491 return NI_PFI_OUTPUT_AI_START1
;
4493 return NI_PFI_OUTPUT_AI_START2
;
4495 return NI_PFI_OUTPUT_AI_CONVERT
;
4497 return NI_PFI_OUTPUT_G_SRC1
;
4499 return NI_PFI_OUTPUT_G_GATE1
;
4501 return NI_PFI_OUTPUT_AO_UPDATE_N
;
4503 return NI_PFI_OUTPUT_AO_START1
;
4505 return NI_PFI_OUTPUT_AI_START_PULSE
;
4507 return NI_PFI_OUTPUT_G_SRC0
;
4509 return NI_PFI_OUTPUT_G_GATE0
;
4511 dev_err(dev
->class_dev
, "bug, unhandled case in switch.\n");
4517 static int ni_old_set_pfi_routing(struct comedi_device
*dev
,
4518 unsigned int chan
, unsigned int source
)
4520 /* pre-m-series boards have fixed signals on pfi pins */
4521 if (source
!= ni_old_get_pfi_routing(dev
, chan
))
4526 static unsigned int ni_m_series_get_pfi_routing(struct comedi_device
*dev
,
4529 struct ni_private
*devpriv
= dev
->private;
4530 const unsigned int array_offset
= chan
/ 3;
4532 return NI_M_PFI_OUT_SEL_TO_SRC(chan
,
4533 devpriv
->pfi_output_select_reg
[array_offset
]);
4536 static int ni_m_series_set_pfi_routing(struct comedi_device
*dev
,
4537 unsigned int chan
, unsigned int source
)
4539 struct ni_private
*devpriv
= dev
->private;
4540 unsigned int index
= chan
/ 3;
4541 unsigned short val
= devpriv
->pfi_output_select_reg
[index
];
4543 if ((source
& 0x1f) != source
)
4546 val
&= ~NI_M_PFI_OUT_SEL_MASK(chan
);
4547 val
|= NI_M_PFI_OUT_SEL(chan
, source
);
4548 ni_writew(dev
, val
, NI_M_PFI_OUT_SEL_REG(index
));
4549 devpriv
->pfi_output_select_reg
[index
] = val
;
4554 static unsigned int ni_get_pfi_routing(struct comedi_device
*dev
,
4557 struct ni_private
*devpriv
= dev
->private;
4559 return (devpriv
->is_m_series
)
4560 ? ni_m_series_get_pfi_routing(dev
, chan
)
4561 : ni_old_get_pfi_routing(dev
, chan
);
4564 static int ni_set_pfi_routing(struct comedi_device
*dev
,
4565 unsigned int chan
, unsigned int source
)
4567 struct ni_private
*devpriv
= dev
->private;
4569 return (devpriv
->is_m_series
)
4570 ? ni_m_series_set_pfi_routing(dev
, chan
, source
)
4571 : ni_old_set_pfi_routing(dev
, chan
, source
);
4574 static int ni_config_filter(struct comedi_device
*dev
,
4575 unsigned int pfi_channel
,
4576 enum ni_pfi_filter_select filter
)
4578 struct ni_private
*devpriv
= dev
->private;
4581 if (!devpriv
->is_m_series
)
4584 bits
= ni_readl(dev
, NI_M_PFI_FILTER_REG
);
4585 bits
&= ~NI_M_PFI_FILTER_SEL_MASK(pfi_channel
);
4586 bits
|= NI_M_PFI_FILTER_SEL(pfi_channel
, filter
);
4587 ni_writel(dev
, bits
, NI_M_PFI_FILTER_REG
);
4591 static int ni_pfi_insn_config(struct comedi_device
*dev
,
4592 struct comedi_subdevice
*s
,
4593 struct comedi_insn
*insn
,
4596 struct ni_private
*devpriv
= dev
->private;
4602 chan
= CR_CHAN(insn
->chanspec
);
4606 ni_set_bits(dev
, NISTC_IO_BIDIR_PIN_REG
, 1 << chan
, 1);
4609 ni_set_bits(dev
, NISTC_IO_BIDIR_PIN_REG
, 1 << chan
, 0);
4611 case INSN_CONFIG_DIO_QUERY
:
4613 (devpriv
->io_bidirection_pin_reg
& (1 << chan
)) ?
4614 COMEDI_OUTPUT
: COMEDI_INPUT
;
4616 case INSN_CONFIG_SET_ROUTING
:
4617 return ni_set_pfi_routing(dev
, chan
, data
[1]);
4618 case INSN_CONFIG_GET_ROUTING
:
4619 data
[1] = ni_get_pfi_routing(dev
, chan
);
4621 case INSN_CONFIG_FILTER
:
4622 return ni_config_filter(dev
, chan
, data
[1]);
4629 static int ni_pfi_insn_bits(struct comedi_device
*dev
,
4630 struct comedi_subdevice
*s
,
4631 struct comedi_insn
*insn
,
4634 struct ni_private
*devpriv
= dev
->private;
4636 if (!devpriv
->is_m_series
)
4639 if (comedi_dio_update_state(s
, data
))
4640 ni_writew(dev
, s
->state
, NI_M_PFI_DO_REG
);
4642 data
[1] = ni_readw(dev
, NI_M_PFI_DI_REG
);
4647 static int cs5529_wait_for_idle(struct comedi_device
*dev
)
4649 unsigned short status
;
4650 const int timeout
= HZ
;
4653 for (i
= 0; i
< timeout
; i
++) {
4654 status
= ni_ao_win_inw(dev
, NI67XX_CAL_STATUS_REG
);
4655 if ((status
& NI67XX_CAL_STATUS_BUSY
) == 0)
4657 set_current_state(TASK_INTERRUPTIBLE
);
4658 if (schedule_timeout(1))
4662 dev_err(dev
->class_dev
, "timeout\n");
4668 static void cs5529_command(struct comedi_device
*dev
, unsigned short value
)
4670 static const int timeout
= 100;
4673 ni_ao_win_outw(dev
, value
, NI67XX_CAL_CMD_REG
);
4674 /* give time for command to start being serially clocked into cs5529.
4675 * this insures that the NI67XX_CAL_STATUS_BUSY bit will get properly
4676 * set before we exit this function.
4678 for (i
= 0; i
< timeout
; i
++) {
4679 if (ni_ao_win_inw(dev
, NI67XX_CAL_STATUS_REG
) &
4680 NI67XX_CAL_STATUS_BUSY
)
4685 dev_err(dev
->class_dev
,
4686 "possible problem - never saw adc go busy?\n");
4689 static int cs5529_do_conversion(struct comedi_device
*dev
,
4690 unsigned short *data
)
4693 unsigned short status
;
4695 cs5529_command(dev
, CS5529_CMD_CB
| CS5529_CMD_SINGLE_CONV
);
4696 retval
= cs5529_wait_for_idle(dev
);
4698 dev_err(dev
->class_dev
,
4699 "timeout or signal in cs5529_do_conversion()\n");
4702 status
= ni_ao_win_inw(dev
, NI67XX_CAL_STATUS_REG
);
4703 if (status
& NI67XX_CAL_STATUS_OSC_DETECT
) {
4704 dev_err(dev
->class_dev
,
4705 "cs5529 conversion error, status CSS_OSC_DETECT\n");
4708 if (status
& NI67XX_CAL_STATUS_OVERRANGE
) {
4709 dev_err(dev
->class_dev
,
4710 "cs5529 conversion error, overrange (ignoring)\n");
4713 *data
= ni_ao_win_inw(dev
, NI67XX_CAL_DATA_REG
);
4714 /* cs5529 returns 16 bit signed data in bipolar mode */
4720 static int cs5529_ai_insn_read(struct comedi_device
*dev
,
4721 struct comedi_subdevice
*s
,
4722 struct comedi_insn
*insn
,
4726 unsigned short sample
;
4727 unsigned int channel_select
;
4728 const unsigned int INTERNAL_REF
= 0x1000;
4731 * Set calibration adc source. Docs lie, reference select bits 8 to 11
4732 * do nothing. bit 12 seems to chooses internal reference voltage, bit
4733 * 13 causes the adc input to go overrange (maybe reads external
4736 if (insn
->chanspec
& CR_ALT_SOURCE
)
4737 channel_select
= INTERNAL_REF
;
4739 channel_select
= CR_CHAN(insn
->chanspec
);
4740 ni_ao_win_outw(dev
, channel_select
, NI67XX_AO_CAL_CHAN_SEL_REG
);
4742 for (n
= 0; n
< insn
->n
; n
++) {
4743 retval
= cs5529_do_conversion(dev
, &sample
);
4751 static void cs5529_config_write(struct comedi_device
*dev
, unsigned int value
,
4752 unsigned int reg_select_bits
)
4754 ni_ao_win_outw(dev
, (value
>> 16) & 0xff, NI67XX_CAL_CFG_HI_REG
);
4755 ni_ao_win_outw(dev
, value
& 0xffff, NI67XX_CAL_CFG_LO_REG
);
4756 reg_select_bits
&= CS5529_CMD_REG_MASK
;
4757 cs5529_command(dev
, CS5529_CMD_CB
| reg_select_bits
);
4758 if (cs5529_wait_for_idle(dev
))
4759 dev_err(dev
->class_dev
,
4760 "timeout or signal in %s\n", __func__
);
4763 static int init_cs5529(struct comedi_device
*dev
)
4765 unsigned int config_bits
= CS5529_CFG_PORT_FLAG
|
4766 CS5529_CFG_WORD_RATE_2180
;
4769 /* do self-calibration */
4770 cs5529_config_write(dev
, config_bits
| CS5529_CFG_CALIB_BOTH_SELF
,
4772 /* need to force a conversion for calibration to run */
4773 cs5529_do_conversion(dev
, NULL
);
4775 /* force gain calibration to 1 */
4776 cs5529_config_write(dev
, 0x400000, CS5529_GAIN_REG
);
4777 cs5529_config_write(dev
, config_bits
| CS5529_CFG_CALIB_OFFSET_SELF
,
4779 if (cs5529_wait_for_idle(dev
))
4780 dev_err(dev
->class_dev
,
4781 "timeout or signal in %s\n", __func__
);
4787 * Find best multiplier/divider to try and get the PLL running at 80 MHz
4788 * given an arbitrary frequency input clock.
4790 static int ni_mseries_get_pll_parameters(unsigned int reference_period_ns
,
4791 unsigned int *freq_divider
,
4792 unsigned int *freq_multiplier
,
4793 unsigned int *actual_period_ns
)
4796 unsigned int best_div
= 1;
4798 unsigned int best_mult
= 1;
4799 static const unsigned int pico_per_nano
= 1000;
4800 const unsigned int reference_picosec
= reference_period_ns
*
4803 * m-series wants the phased-locked loop to output 80MHz, which is
4804 * divided by 4 to 20 MHz for most timing clocks
4806 static const unsigned int target_picosec
= 12500;
4807 int best_period_picosec
= 0;
4809 for (div
= 1; div
<= NI_M_PLL_MAX_DIVISOR
; ++div
) {
4810 for (mult
= 1; mult
<= NI_M_PLL_MAX_MULTIPLIER
; ++mult
) {
4811 unsigned int new_period_ps
=
4812 (reference_picosec
* div
) / mult
;
4813 if (abs(new_period_ps
- target_picosec
) <
4814 abs(best_period_picosec
- target_picosec
)) {
4815 best_period_picosec
= new_period_ps
;
4821 if (best_period_picosec
== 0)
4824 *freq_divider
= best_div
;
4825 *freq_multiplier
= best_mult
;
4826 /* return the actual period (* fudge factor for 80 to 20 MHz) */
4827 *actual_period_ns
= DIV_ROUND_CLOSEST(best_period_picosec
* 4,
4832 static int ni_mseries_set_pll_master_clock(struct comedi_device
*dev
,
4833 unsigned int source
,
4834 unsigned int period_ns
)
4836 struct ni_private
*devpriv
= dev
->private;
4837 static const unsigned int min_period_ns
= 50;
4838 static const unsigned int max_period_ns
= 1000;
4839 static const unsigned int timeout
= 1000;
4840 unsigned int pll_control_bits
;
4841 unsigned int freq_divider
;
4842 unsigned int freq_multiplier
;
4847 if (source
== NI_MIO_PLL_PXI10_CLOCK
)
4850 * These limits are somewhat arbitrary, but NI advertises 1 to 20MHz
4851 * range so we'll use that.
4853 if (period_ns
< min_period_ns
|| period_ns
> max_period_ns
) {
4854 dev_err(dev
->class_dev
,
4855 "%s: you must specify an input clock frequency between %i and %i nanosec for the phased-lock loop\n",
4856 __func__
, min_period_ns
, max_period_ns
);
4859 devpriv
->rtsi_trig_direction_reg
&= ~NISTC_RTSI_TRIG_USE_CLK
;
4860 ni_stc_writew(dev
, devpriv
->rtsi_trig_direction_reg
,
4861 NISTC_RTSI_TRIG_DIR_REG
);
4862 pll_control_bits
= NI_M_PLL_CTRL_ENA
| NI_M_PLL_CTRL_VCO_MODE_75_150MHZ
;
4863 devpriv
->clock_and_fout2
|= NI_M_CLK_FOUT2_TIMEBASE1_PLL
|
4864 NI_M_CLK_FOUT2_TIMEBASE3_PLL
;
4865 devpriv
->clock_and_fout2
&= ~NI_M_CLK_FOUT2_PLL_SRC_MASK
;
4867 case NI_MIO_PLL_PXI_STAR_TRIGGER_CLOCK
:
4868 devpriv
->clock_and_fout2
|= NI_M_CLK_FOUT2_PLL_SRC_STAR
;
4870 case NI_MIO_PLL_PXI10_CLOCK
:
4871 /* pxi clock is 10MHz */
4872 devpriv
->clock_and_fout2
|= NI_M_CLK_FOUT2_PLL_SRC_PXI10
;
4875 for (rtsi
= 0; rtsi
<= NI_M_MAX_RTSI_CHAN
; ++rtsi
) {
4876 if (source
== NI_MIO_PLL_RTSI_CLOCK(rtsi
)) {
4877 devpriv
->clock_and_fout2
|=
4878 NI_M_CLK_FOUT2_PLL_SRC_RTSI(rtsi
);
4882 if (rtsi
> NI_M_MAX_RTSI_CHAN
)
4886 retval
= ni_mseries_get_pll_parameters(period_ns
,
4889 &devpriv
->clock_ns
);
4891 dev_err(dev
->class_dev
,
4892 "bug, failed to find pll parameters\n");
4896 ni_writew(dev
, devpriv
->clock_and_fout2
, NI_M_CLK_FOUT2_REG
);
4897 pll_control_bits
|= NI_M_PLL_CTRL_DIVISOR(freq_divider
) |
4898 NI_M_PLL_CTRL_MULTIPLIER(freq_multiplier
);
4900 ni_writew(dev
, pll_control_bits
, NI_M_PLL_CTRL_REG
);
4901 devpriv
->clock_source
= source
;
4902 /* it takes a few hundred microseconds for PLL to lock */
4903 for (i
= 0; i
< timeout
; ++i
) {
4904 if (ni_readw(dev
, NI_M_PLL_STATUS_REG
) & NI_M_PLL_STATUS_LOCKED
)
4909 dev_err(dev
->class_dev
,
4910 "%s: timed out waiting for PLL to lock to reference clock source %i with period %i ns\n",
4911 __func__
, source
, period_ns
);
4917 static int ni_set_master_clock(struct comedi_device
*dev
,
4918 unsigned int source
, unsigned int period_ns
)
4920 struct ni_private
*devpriv
= dev
->private;
4922 if (source
== NI_MIO_INTERNAL_CLOCK
) {
4923 devpriv
->rtsi_trig_direction_reg
&= ~NISTC_RTSI_TRIG_USE_CLK
;
4924 ni_stc_writew(dev
, devpriv
->rtsi_trig_direction_reg
,
4925 NISTC_RTSI_TRIG_DIR_REG
);
4926 devpriv
->clock_ns
= TIMEBASE_1_NS
;
4927 if (devpriv
->is_m_series
) {
4928 devpriv
->clock_and_fout2
&=
4929 ~(NI_M_CLK_FOUT2_TIMEBASE1_PLL
|
4930 NI_M_CLK_FOUT2_TIMEBASE3_PLL
);
4931 ni_writew(dev
, devpriv
->clock_and_fout2
,
4932 NI_M_CLK_FOUT2_REG
);
4933 ni_writew(dev
, 0, NI_M_PLL_CTRL_REG
);
4935 devpriv
->clock_source
= source
;
4937 if (devpriv
->is_m_series
) {
4938 return ni_mseries_set_pll_master_clock(dev
, source
,
4941 if (source
== NI_MIO_RTSI_CLOCK
) {
4942 devpriv
->rtsi_trig_direction_reg
|=
4943 NISTC_RTSI_TRIG_USE_CLK
;
4945 devpriv
->rtsi_trig_direction_reg
,
4946 NISTC_RTSI_TRIG_DIR_REG
);
4947 if (period_ns
== 0) {
4948 dev_err(dev
->class_dev
,
4949 "we don't handle an unspecified clock period correctly yet, returning error\n");
4952 devpriv
->clock_ns
= period_ns
;
4953 devpriv
->clock_source
= source
;
4962 static int ni_valid_rtsi_output_source(struct comedi_device
*dev
,
4963 unsigned int chan
, unsigned int source
)
4965 struct ni_private
*devpriv
= dev
->private;
4967 if (chan
>= NISTC_RTSI_TRIG_NUM_CHAN(devpriv
->is_m_series
)) {
4968 if (chan
== NISTC_RTSI_TRIG_OLD_CLK_CHAN
) {
4969 if (source
== NI_RTSI_OUTPUT_RTSI_OSC
)
4972 dev_err(dev
->class_dev
,
4973 "%s: invalid source for channel=%i, channel %i is always the RTSI clock for pre-m-series boards\n",
4974 __func__
, chan
, NISTC_RTSI_TRIG_OLD_CLK_CHAN
);
4980 case NI_RTSI_OUTPUT_ADR_START1
:
4981 case NI_RTSI_OUTPUT_ADR_START2
:
4982 case NI_RTSI_OUTPUT_SCLKG
:
4983 case NI_RTSI_OUTPUT_DACUPDN
:
4984 case NI_RTSI_OUTPUT_DA_START1
:
4985 case NI_RTSI_OUTPUT_G_SRC0
:
4986 case NI_RTSI_OUTPUT_G_GATE0
:
4987 case NI_RTSI_OUTPUT_RGOUT0
:
4988 case NI_RTSI_OUTPUT_RTSI_BRD_0
:
4990 case NI_RTSI_OUTPUT_RTSI_OSC
:
4991 return (devpriv
->is_m_series
) ? 1 : 0;
4997 static int ni_set_rtsi_routing(struct comedi_device
*dev
,
4998 unsigned int chan
, unsigned int src
)
5000 struct ni_private
*devpriv
= dev
->private;
5002 if (ni_valid_rtsi_output_source(dev
, chan
, src
) == 0)
5005 devpriv
->rtsi_trig_a_output_reg
&= ~NISTC_RTSI_TRIG_MASK(chan
);
5006 devpriv
->rtsi_trig_a_output_reg
|= NISTC_RTSI_TRIG(chan
, src
);
5007 ni_stc_writew(dev
, devpriv
->rtsi_trig_a_output_reg
,
5008 NISTC_RTSI_TRIGA_OUT_REG
);
5009 } else if (chan
< 8) {
5010 devpriv
->rtsi_trig_b_output_reg
&= ~NISTC_RTSI_TRIG_MASK(chan
);
5011 devpriv
->rtsi_trig_b_output_reg
|= NISTC_RTSI_TRIG(chan
, src
);
5012 ni_stc_writew(dev
, devpriv
->rtsi_trig_b_output_reg
,
5013 NISTC_RTSI_TRIGB_OUT_REG
);
5018 static unsigned int ni_get_rtsi_routing(struct comedi_device
*dev
,
5021 struct ni_private
*devpriv
= dev
->private;
5024 return NISTC_RTSI_TRIG_TO_SRC(chan
,
5025 devpriv
->rtsi_trig_a_output_reg
);
5026 } else if (chan
< NISTC_RTSI_TRIG_NUM_CHAN(devpriv
->is_m_series
)) {
5027 return NISTC_RTSI_TRIG_TO_SRC(chan
,
5028 devpriv
->rtsi_trig_b_output_reg
);
5030 if (chan
== NISTC_RTSI_TRIG_OLD_CLK_CHAN
)
5031 return NI_RTSI_OUTPUT_RTSI_OSC
;
5032 dev_err(dev
->class_dev
, "bug! should never get here?\n");
5037 static int ni_rtsi_insn_config(struct comedi_device
*dev
,
5038 struct comedi_subdevice
*s
,
5039 struct comedi_insn
*insn
,
5042 struct ni_private
*devpriv
= dev
->private;
5043 unsigned int chan
= CR_CHAN(insn
->chanspec
);
5044 unsigned int max_chan
= NISTC_RTSI_TRIG_NUM_CHAN(devpriv
->is_m_series
);
5047 case INSN_CONFIG_DIO_OUTPUT
:
5048 if (chan
< max_chan
) {
5049 devpriv
->rtsi_trig_direction_reg
|=
5050 NISTC_RTSI_TRIG_DIR(chan
, devpriv
->is_m_series
);
5051 } else if (chan
== NISTC_RTSI_TRIG_OLD_CLK_CHAN
) {
5052 devpriv
->rtsi_trig_direction_reg
|=
5053 NISTC_RTSI_TRIG_DRV_CLK
;
5055 ni_stc_writew(dev
, devpriv
->rtsi_trig_direction_reg
,
5056 NISTC_RTSI_TRIG_DIR_REG
);
5058 case INSN_CONFIG_DIO_INPUT
:
5059 if (chan
< max_chan
) {
5060 devpriv
->rtsi_trig_direction_reg
&=
5061 ~NISTC_RTSI_TRIG_DIR(chan
, devpriv
->is_m_series
);
5062 } else if (chan
== NISTC_RTSI_TRIG_OLD_CLK_CHAN
) {
5063 devpriv
->rtsi_trig_direction_reg
&=
5064 ~NISTC_RTSI_TRIG_DRV_CLK
;
5066 ni_stc_writew(dev
, devpriv
->rtsi_trig_direction_reg
,
5067 NISTC_RTSI_TRIG_DIR_REG
);
5069 case INSN_CONFIG_DIO_QUERY
:
5070 if (chan
< max_chan
) {
5072 (devpriv
->rtsi_trig_direction_reg
&
5073 NISTC_RTSI_TRIG_DIR(chan
, devpriv
->is_m_series
))
5074 ? INSN_CONFIG_DIO_OUTPUT
5075 : INSN_CONFIG_DIO_INPUT
;
5076 } else if (chan
== NISTC_RTSI_TRIG_OLD_CLK_CHAN
) {
5077 data
[1] = (devpriv
->rtsi_trig_direction_reg
&
5078 NISTC_RTSI_TRIG_DRV_CLK
)
5079 ? INSN_CONFIG_DIO_OUTPUT
5080 : INSN_CONFIG_DIO_INPUT
;
5083 case INSN_CONFIG_SET_CLOCK_SRC
:
5084 return ni_set_master_clock(dev
, data
[1], data
[2]);
5085 case INSN_CONFIG_GET_CLOCK_SRC
:
5086 data
[1] = devpriv
->clock_source
;
5087 data
[2] = devpriv
->clock_ns
;
5089 case INSN_CONFIG_SET_ROUTING
:
5090 return ni_set_rtsi_routing(dev
, chan
, data
[1]);
5091 case INSN_CONFIG_GET_ROUTING
:
5092 data
[1] = ni_get_rtsi_routing(dev
, chan
);
5100 static int ni_rtsi_insn_bits(struct comedi_device
*dev
,
5101 struct comedi_subdevice
*s
,
5102 struct comedi_insn
*insn
,
5110 static void ni_rtsi_init(struct comedi_device
*dev
)
5112 struct ni_private
*devpriv
= dev
->private;
5114 /* Initialises the RTSI bus signal switch to a default state */
5117 * Use 10MHz instead of 20MHz for RTSI clock frequency. Appears
5118 * to have no effect, at least on pxi-6281, which always uses
5119 * 20MHz rtsi clock frequency
5121 devpriv
->clock_and_fout2
= NI_M_CLK_FOUT2_RTSI_10MHZ
;
5122 /* Set clock mode to internal */
5123 if (ni_set_master_clock(dev
, NI_MIO_INTERNAL_CLOCK
, 0) < 0)
5124 dev_err(dev
->class_dev
, "ni_set_master_clock failed, bug?\n");
5125 /* default internal lines routing to RTSI bus lines */
5126 devpriv
->rtsi_trig_a_output_reg
=
5127 NISTC_RTSI_TRIG(0, NI_RTSI_OUTPUT_ADR_START1
) |
5128 NISTC_RTSI_TRIG(1, NI_RTSI_OUTPUT_ADR_START2
) |
5129 NISTC_RTSI_TRIG(2, NI_RTSI_OUTPUT_SCLKG
) |
5130 NISTC_RTSI_TRIG(3, NI_RTSI_OUTPUT_DACUPDN
);
5131 ni_stc_writew(dev
, devpriv
->rtsi_trig_a_output_reg
,
5132 NISTC_RTSI_TRIGA_OUT_REG
);
5133 devpriv
->rtsi_trig_b_output_reg
=
5134 NISTC_RTSI_TRIG(4, NI_RTSI_OUTPUT_DA_START1
) |
5135 NISTC_RTSI_TRIG(5, NI_RTSI_OUTPUT_G_SRC0
) |
5136 NISTC_RTSI_TRIG(6, NI_RTSI_OUTPUT_G_GATE0
);
5137 if (devpriv
->is_m_series
)
5138 devpriv
->rtsi_trig_b_output_reg
|=
5139 NISTC_RTSI_TRIG(7, NI_RTSI_OUTPUT_RTSI_OSC
);
5140 ni_stc_writew(dev
, devpriv
->rtsi_trig_b_output_reg
,
5141 NISTC_RTSI_TRIGB_OUT_REG
);
5144 * Sets the source and direction of the 4 on board lines
5145 * ni_stc_writew(dev, 0, NISTC_RTSI_BOARD_REG);
5150 static int ni_gpct_cmd(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
5152 struct ni_gpct
*counter
= s
->private;
5155 retval
= ni_request_gpct_mite_channel(dev
, counter
->counter_index
,
5158 dev_err(dev
->class_dev
,
5159 "no dma channel available for use by counter\n");
5162 ni_tio_acknowledge(counter
);
5163 ni_e_series_enable_second_irq(dev
, counter
->counter_index
, 1);
5165 return ni_tio_cmd(dev
, s
);
5168 static int ni_gpct_cancel(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
5170 struct ni_gpct
*counter
= s
->private;
5173 retval
= ni_tio_cancel(counter
);
5174 ni_e_series_enable_second_irq(dev
, counter
->counter_index
, 0);
5175 ni_release_gpct_mite_channel(dev
, counter
->counter_index
);
5180 static irqreturn_t
ni_E_interrupt(int irq
, void *d
)
5182 struct comedi_device
*dev
= d
;
5183 struct comedi_subdevice
*s_ai
= dev
->read_subdev
;
5184 struct comedi_subdevice
*s_ao
= dev
->write_subdev
;
5185 unsigned short a_status
;
5186 unsigned short b_status
;
5187 unsigned long flags
;
5189 struct ni_private
*devpriv
= dev
->private;
5194 smp_mb(); /* make sure dev->attached is checked */
5196 /* lock to avoid race with comedi_poll */
5197 spin_lock_irqsave(&dev
->spinlock
, flags
);
5198 a_status
= ni_stc_readw(dev
, NISTC_AI_STATUS1_REG
);
5199 b_status
= ni_stc_readw(dev
, NISTC_AO_STATUS1_REG
);
5201 if (devpriv
->mite
) {
5202 unsigned long flags_too
;
5204 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags_too
);
5205 if (s_ai
&& devpriv
->ai_mite_chan
)
5206 mite_ack_linkc(devpriv
->ai_mite_chan
, s_ai
, false);
5207 if (s_ao
&& devpriv
->ao_mite_chan
)
5208 mite_ack_linkc(devpriv
->ao_mite_chan
, s_ao
, false);
5209 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags_too
);
5212 ack_a_interrupt(dev
, a_status
);
5213 ack_b_interrupt(dev
, b_status
);
5215 if (a_status
& NISTC_AI_STATUS1_INTA
)
5216 handle_a_interrupt(dev
, s_ai
, a_status
);
5217 /* handle any interrupt or dma events */
5218 comedi_handle_events(dev
, s_ai
);
5221 if (b_status
& NISTC_AO_STATUS1_INTB
)
5222 handle_b_interrupt(dev
, s_ao
, b_status
);
5223 /* handle any interrupt or dma events */
5224 comedi_handle_events(dev
, s_ao
);
5226 handle_gpct_interrupt(dev
, 0);
5227 handle_gpct_interrupt(dev
, 1);
5229 if (devpriv
->is_m_series
)
5230 handle_cdio_interrupt(dev
);
5233 spin_unlock_irqrestore(&dev
->spinlock
, flags
);
5237 static int ni_alloc_private(struct comedi_device
*dev
)
5239 struct ni_private
*devpriv
;
5241 devpriv
= comedi_alloc_devpriv(dev
, sizeof(*devpriv
));
5245 spin_lock_init(&devpriv
->window_lock
);
5246 spin_lock_init(&devpriv
->soft_reg_copy_lock
);
5247 spin_lock_init(&devpriv
->mite_channel_lock
);
5252 static int ni_E_init(struct comedi_device
*dev
,
5253 unsigned int interrupt_pin
, unsigned int irq_polarity
)
5255 const struct ni_board_struct
*board
= dev
->board_ptr
;
5256 struct ni_private
*devpriv
= dev
->private;
5257 struct comedi_subdevice
*s
;
5261 if (board
->n_aochan
> MAX_N_AO_CHAN
) {
5262 dev_err(dev
->class_dev
, "bug! n_aochan > MAX_N_AO_CHAN\n");
5266 /* initialize clock dividers */
5267 devpriv
->clock_and_fout
= NISTC_CLK_FOUT_SLOW_DIV2
|
5268 NISTC_CLK_FOUT_SLOW_TIMEBASE
|
5269 NISTC_CLK_FOUT_TO_BOARD_DIV2
|
5270 NISTC_CLK_FOUT_TO_BOARD
;
5271 if (!devpriv
->is_6xxx
) {
5272 /* BEAM is this needed for PCI-6143 ?? */
5273 devpriv
->clock_and_fout
|= (NISTC_CLK_FOUT_AI_OUT_DIV2
|
5274 NISTC_CLK_FOUT_AO_OUT_DIV2
);
5276 ni_stc_writew(dev
, devpriv
->clock_and_fout
, NISTC_CLK_FOUT_REG
);
5278 ret
= comedi_alloc_subdevices(dev
, NI_NUM_SUBDEVICES
);
5282 /* Analog Input subdevice */
5283 s
= &dev
->subdevices
[NI_AI_SUBDEV
];
5284 if (board
->n_adchan
) {
5285 s
->type
= COMEDI_SUBD_AI
;
5286 s
->subdev_flags
= SDF_READABLE
| SDF_DIFF
| SDF_DITHER
;
5287 if (!devpriv
->is_611x
)
5288 s
->subdev_flags
|= SDF_GROUND
| SDF_COMMON
| SDF_OTHER
;
5289 if (board
->ai_maxdata
> 0xffff)
5290 s
->subdev_flags
|= SDF_LSAMPL
;
5291 if (devpriv
->is_m_series
)
5292 s
->subdev_flags
|= SDF_SOFT_CALIBRATED
;
5293 s
->n_chan
= board
->n_adchan
;
5294 s
->maxdata
= board
->ai_maxdata
;
5295 s
->range_table
= ni_range_lkup
[board
->gainlkup
];
5296 s
->insn_read
= ni_ai_insn_read
;
5297 s
->insn_config
= ni_ai_insn_config
;
5299 dev
->read_subdev
= s
;
5300 s
->subdev_flags
|= SDF_CMD_READ
;
5301 s
->len_chanlist
= 512;
5302 s
->do_cmdtest
= ni_ai_cmdtest
;
5303 s
->do_cmd
= ni_ai_cmd
;
5304 s
->cancel
= ni_ai_reset
;
5305 s
->poll
= ni_ai_poll
;
5306 s
->munge
= ni_ai_munge
;
5309 s
->async_dma_dir
= DMA_FROM_DEVICE
;
5312 /* reset the analog input configuration */
5313 ni_ai_reset(dev
, s
);
5315 s
->type
= COMEDI_SUBD_UNUSED
;
5318 /* Analog Output subdevice */
5319 s
= &dev
->subdevices
[NI_AO_SUBDEV
];
5320 if (board
->n_aochan
) {
5321 s
->type
= COMEDI_SUBD_AO
;
5322 s
->subdev_flags
= SDF_WRITABLE
| SDF_DEGLITCH
| SDF_GROUND
;
5323 if (devpriv
->is_m_series
)
5324 s
->subdev_flags
|= SDF_SOFT_CALIBRATED
;
5325 s
->n_chan
= board
->n_aochan
;
5326 s
->maxdata
= board
->ao_maxdata
;
5327 s
->range_table
= board
->ao_range_table
;
5328 s
->insn_config
= ni_ao_insn_config
;
5329 s
->insn_write
= ni_ao_insn_write
;
5331 ret
= comedi_alloc_subdev_readback(s
);
5336 * Along with the IRQ we need either a FIFO or DMA for
5337 * async command support.
5339 if (dev
->irq
&& (board
->ao_fifo_depth
|| devpriv
->mite
)) {
5340 dev
->write_subdev
= s
;
5341 s
->subdev_flags
|= SDF_CMD_WRITE
;
5342 s
->len_chanlist
= s
->n_chan
;
5343 s
->do_cmdtest
= ni_ao_cmdtest
;
5344 s
->do_cmd
= ni_ao_cmd
;
5345 s
->cancel
= ni_ao_reset
;
5346 if (!devpriv
->is_m_series
)
5347 s
->munge
= ni_ao_munge
;
5350 s
->async_dma_dir
= DMA_TO_DEVICE
;
5353 if (devpriv
->is_67xx
)
5354 init_ao_67xx(dev
, s
);
5356 /* reset the analog output configuration */
5357 ni_ao_reset(dev
, s
);
5359 s
->type
= COMEDI_SUBD_UNUSED
;
5362 /* Digital I/O subdevice */
5363 s
= &dev
->subdevices
[NI_DIO_SUBDEV
];
5364 s
->type
= COMEDI_SUBD_DIO
;
5365 s
->subdev_flags
= SDF_WRITABLE
| SDF_READABLE
;
5366 s
->n_chan
= board
->has_32dio_chan
? 32 : 8;
5368 s
->range_table
= &range_digital
;
5369 if (devpriv
->is_m_series
) {
5371 s
->subdev_flags
|= SDF_LSAMPL
;
5372 s
->insn_bits
= ni_m_series_dio_insn_bits
;
5373 s
->insn_config
= ni_m_series_dio_insn_config
;
5375 s
->subdev_flags
|= SDF_CMD_WRITE
/* | SDF_CMD_READ */;
5376 s
->len_chanlist
= s
->n_chan
;
5377 s
->do_cmdtest
= ni_cdio_cmdtest
;
5378 s
->do_cmd
= ni_cdio_cmd
;
5379 s
->cancel
= ni_cdio_cancel
;
5381 /* M-series boards use DMA */
5382 s
->async_dma_dir
= DMA_BIDIRECTIONAL
;
5385 /* reset DIO and set all channels to inputs */
5386 ni_writel(dev
, NI_M_CDO_CMD_RESET
|
5389 ni_writel(dev
, s
->io_bits
, NI_M_DIO_DIR_REG
);
5392 s
->insn_bits
= ni_dio_insn_bits
;
5393 s
->insn_config
= ni_dio_insn_config
;
5395 /* set all channels to inputs */
5396 devpriv
->dio_control
= NISTC_DIO_CTRL_DIR(s
->io_bits
);
5397 ni_writew(dev
, devpriv
->dio_control
, NISTC_DIO_CTRL_REG
);
5401 s
= &dev
->subdevices
[NI_8255_DIO_SUBDEV
];
5402 if (board
->has_8255
) {
5403 ret
= subdev_8255_init(dev
, s
, ni_8255_callback
,
5408 s
->type
= COMEDI_SUBD_UNUSED
;
5411 /* formerly general purpose counter/timer device, but no longer used */
5412 s
= &dev
->subdevices
[NI_UNUSED_SUBDEV
];
5413 s
->type
= COMEDI_SUBD_UNUSED
;
5415 /* Calibration subdevice */
5416 s
= &dev
->subdevices
[NI_CALIBRATION_SUBDEV
];
5417 s
->type
= COMEDI_SUBD_CALIB
;
5418 s
->subdev_flags
= SDF_INTERNAL
;
5421 if (devpriv
->is_m_series
) {
5422 /* internal PWM output used for AI nonlinearity calibration */
5423 s
->insn_config
= ni_m_series_pwm_config
;
5425 ni_writel(dev
, 0x0, NI_M_CAL_PWM_REG
);
5426 } else if (devpriv
->is_6143
) {
5427 /* internal PWM output used for AI nonlinearity calibration */
5428 s
->insn_config
= ni_6143_pwm_config
;
5430 s
->subdev_flags
|= SDF_WRITABLE
;
5431 s
->insn_read
= ni_calib_insn_read
;
5432 s
->insn_write
= ni_calib_insn_write
;
5434 /* setup the caldacs and find the real n_chan and maxdata */
5435 caldac_setup(dev
, s
);
5438 /* EEPROM subdevice */
5439 s
= &dev
->subdevices
[NI_EEPROM_SUBDEV
];
5440 s
->type
= COMEDI_SUBD_MEMORY
;
5441 s
->subdev_flags
= SDF_READABLE
| SDF_INTERNAL
;
5443 if (devpriv
->is_m_series
) {
5444 s
->n_chan
= M_SERIES_EEPROM_SIZE
;
5445 s
->insn_read
= ni_m_series_eeprom_insn_read
;
5448 s
->insn_read
= ni_eeprom_insn_read
;
5451 /* Digital I/O (PFI) subdevice */
5452 s
= &dev
->subdevices
[NI_PFI_DIO_SUBDEV
];
5453 s
->type
= COMEDI_SUBD_DIO
;
5454 s
->subdev_flags
= SDF_READABLE
| SDF_WRITABLE
| SDF_INTERNAL
;
5456 if (devpriv
->is_m_series
) {
5458 s
->insn_bits
= ni_pfi_insn_bits
;
5460 ni_writew(dev
, s
->state
, NI_M_PFI_DO_REG
);
5461 for (i
= 0; i
< NUM_PFI_OUTPUT_SELECT_REGS
; ++i
) {
5462 ni_writew(dev
, devpriv
->pfi_output_select_reg
[i
],
5463 NI_M_PFI_OUT_SEL_REG(i
));
5468 s
->insn_config
= ni_pfi_insn_config
;
5470 ni_set_bits(dev
, NISTC_IO_BIDIR_PIN_REG
, ~0, 0);
5472 /* cs5529 calibration adc */
5473 s
= &dev
->subdevices
[NI_CS5529_CALIBRATION_SUBDEV
];
5474 if (devpriv
->is_67xx
) {
5475 s
->type
= COMEDI_SUBD_AI
;
5476 s
->subdev_flags
= SDF_READABLE
| SDF_DIFF
| SDF_INTERNAL
;
5477 /* one channel for each analog output channel */
5478 s
->n_chan
= board
->n_aochan
;
5479 s
->maxdata
= (1 << 16) - 1;
5480 s
->range_table
= &range_unknown
; /* XXX */
5481 s
->insn_read
= cs5529_ai_insn_read
;
5482 s
->insn_config
= NULL
;
5485 s
->type
= COMEDI_SUBD_UNUSED
;
5489 s
= &dev
->subdevices
[NI_SERIAL_SUBDEV
];
5490 s
->type
= COMEDI_SUBD_SERIAL
;
5491 s
->subdev_flags
= SDF_READABLE
| SDF_WRITABLE
| SDF_INTERNAL
;
5494 s
->insn_config
= ni_serial_insn_config
;
5495 devpriv
->serial_interval_ns
= 0;
5496 devpriv
->serial_hw_mode
= 0;
5499 s
= &dev
->subdevices
[NI_RTSI_SUBDEV
];
5500 s
->type
= COMEDI_SUBD_DIO
;
5501 s
->subdev_flags
= SDF_READABLE
| SDF_WRITABLE
| SDF_INTERNAL
;
5504 s
->insn_bits
= ni_rtsi_insn_bits
;
5505 s
->insn_config
= ni_rtsi_insn_config
;
5508 /* allocate and initialize the gpct counter device */
5509 devpriv
->counter_dev
= ni_gpct_device_construct(dev
,
5510 ni_gpct_write_register
,
5511 ni_gpct_read_register
,
5512 (devpriv
->is_m_series
)
5513 ? ni_gpct_variant_m_series
5514 : ni_gpct_variant_e_series
,
5516 if (!devpriv
->counter_dev
)
5519 /* Counter (gpct) subdevices */
5520 for (i
= 0; i
< NUM_GPCT
; ++i
) {
5521 struct ni_gpct
*gpct
= &devpriv
->counter_dev
->counters
[i
];
5523 /* setup and initialize the counter */
5524 gpct
->chip_index
= 0;
5525 gpct
->counter_index
= i
;
5526 ni_tio_init_counter(gpct
);
5528 s
= &dev
->subdevices
[NI_GPCT_SUBDEV(i
)];
5529 s
->type
= COMEDI_SUBD_COUNTER
;
5530 s
->subdev_flags
= SDF_READABLE
| SDF_WRITABLE
| SDF_LSAMPL
;
5532 s
->maxdata
= (devpriv
->is_m_series
) ? 0xffffffff
5534 s
->insn_read
= ni_tio_insn_read
;
5535 s
->insn_write
= ni_tio_insn_write
;
5536 s
->insn_config
= ni_tio_insn_config
;
5538 if (dev
->irq
&& devpriv
->mite
) {
5539 s
->subdev_flags
|= SDF_CMD_READ
/* | SDF_CMD_WRITE */;
5540 s
->len_chanlist
= 1;
5541 s
->do_cmdtest
= ni_tio_cmdtest
;
5542 s
->do_cmd
= ni_gpct_cmd
;
5543 s
->cancel
= ni_gpct_cancel
;
5545 s
->async_dma_dir
= DMA_BIDIRECTIONAL
;
5551 /* Frequency output subdevice */
5552 s
= &dev
->subdevices
[NI_FREQ_OUT_SUBDEV
];
5553 s
->type
= COMEDI_SUBD_COUNTER
;
5554 s
->subdev_flags
= SDF_READABLE
| SDF_WRITABLE
;
5557 s
->insn_read
= ni_freq_out_insn_read
;
5558 s
->insn_write
= ni_freq_out_insn_write
;
5559 s
->insn_config
= ni_freq_out_insn_config
;
5563 (irq_polarity
? NISTC_INT_CTRL_INT_POL
: 0) |
5564 (NISTC_INT_CTRL_3PIN_INT
& 0) |
5565 NISTC_INT_CTRL_INTA_ENA
|
5566 NISTC_INT_CTRL_INTB_ENA
|
5567 NISTC_INT_CTRL_INTA_SEL(interrupt_pin
) |
5568 NISTC_INT_CTRL_INTB_SEL(interrupt_pin
),
5569 NISTC_INT_CTRL_REG
);
5573 ni_writeb(dev
, devpriv
->ai_ao_select_reg
, NI_E_DMA_AI_AO_SEL_REG
);
5574 ni_writeb(dev
, devpriv
->g0_g1_select_reg
, NI_E_DMA_G0_G1_SEL_REG
);
5576 if (devpriv
->is_6xxx
) {
5577 ni_writeb(dev
, 0, NI611X_MAGIC_REG
);
5578 } else if (devpriv
->is_m_series
) {
5581 for (channel
= 0; channel
< board
->n_aochan
; ++channel
) {
5583 NI_M_AO_WAVEFORM_ORDER_REG(channel
));
5585 NI_M_AO_REF_ATTENUATION_REG(channel
));
5587 ni_writeb(dev
, 0x0, NI_M_AO_CALIB_REG
);
5593 static void mio_common_detach(struct comedi_device
*dev
)
5595 struct ni_private
*devpriv
= dev
->private;
5598 ni_gpct_device_destroy(devpriv
->counter_dev
);