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Commit | Line | Data |
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03aef4b6 DS |
1 | /* |
2 | comedi/drivers/ni_mio_common.c | |
3 | Hardware driver for DAQ-STC based boards | |
4 | ||
5 | COMEDI - Linux Control and Measurement Device Interface | |
6 | Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org> | |
7 | Copyright (C) 2002-2006 Frank Mori Hess <fmhess@users.sourceforge.net> | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | ||
23 | */ | |
24 | ||
25 | /* | |
26 | This file is meant to be included by another file, e.g., | |
27 | ni_atmio.c or ni_pcimio.c. | |
28 | ||
29 | Interrupt support originally added by Truxton Fulton | |
30 | <trux@truxton.com> | |
31 | ||
32 | References (from ftp://ftp.natinst.com/support/manuals): | |
33 | ||
34 | 340747b.pdf AT-MIO E series Register Level Programmer Manual | |
35 | 341079b.pdf PCI E Series RLPM | |
36 | 340934b.pdf DAQ-STC reference manual | |
37 | 67xx and 611x registers (from http://www.ni.com/pdf/daq/us) | |
38 | release_ni611x.pdf | |
39 | release_ni67xx.pdf | |
40 | Other possibly relevant info: | |
41 | ||
42 | 320517c.pdf User manual (obsolete) | |
43 | 320517f.pdf User manual (new) | |
44 | 320889a.pdf delete | |
45 | 320906c.pdf maximum signal ratings | |
46 | 321066a.pdf about 16x | |
47 | 321791a.pdf discontinuation of at-mio-16e-10 rev. c | |
48 | 321808a.pdf about at-mio-16e-10 rev P | |
49 | 321837a.pdf discontinuation of at-mio-16de-10 rev d | |
50 | 321838a.pdf about at-mio-16de-10 rev N | |
51 | ||
52 | ISSUES: | |
53 | ||
54 | - the interrupt routine needs to be cleaned up | |
55 | ||
56 | 2006-02-07: S-Series PCI-6143: Support has been added but is not | |
57 | fully tested as yet. Terry Barnaby, BEAM Ltd. | |
58 | */ | |
59 | ||
2696fb57 BP |
60 | /* #define DEBUG_INTERRUPT */ |
61 | /* #define DEBUG_STATUS_A */ | |
62 | /* #define DEBUG_STATUS_B */ | |
03aef4b6 DS |
63 | |
64 | #include "8255.h" | |
65 | #include "mite.h" | |
66 | #include "comedi_fc.h" | |
67 | ||
68 | #ifndef MDPRINTK | |
69 | #define MDPRINTK(format,args...) | |
70 | #endif | |
71 | ||
72 | /* A timeout count */ | |
73 | #define NI_TIMEOUT 1000 | |
74 | static const unsigned old_RTSI_clock_channel = 7; | |
75 | ||
76 | /* Note: this table must match the ai_gain_* definitions */ | |
77 | static const short ni_gainlkup[][16] = { | |
78 | [ai_gain_16] = {0, 1, 2, 3, 4, 5, 6, 7, | |
79 | 0x100, 0x101, 0x102, 0x103, 0x104, 0x105, 0x106, 0x107}, | |
80 | [ai_gain_8] = {1, 2, 4, 7, 0x101, 0x102, 0x104, 0x107}, | |
81 | [ai_gain_14] = {1, 2, 3, 4, 5, 6, 7, | |
82 | 0x101, 0x102, 0x103, 0x104, 0x105, 0x106, 0x107}, | |
83 | [ai_gain_4] = {0, 1, 4, 7}, | |
84 | [ai_gain_611x] = {0x00a, 0x00b, 0x001, 0x002, | |
85 | 0x003, 0x004, 0x005, 0x006}, | |
86 | [ai_gain_622x] = {0, 1, 4, 5}, | |
87 | [ai_gain_628x] = {1, 2, 3, 4, 5, 6, 7}, | |
88 | [ai_gain_6143] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, | |
89 | }; | |
90 | ||
9ced1de6 | 91 | static const struct comedi_lrange range_ni_E_ai = { 16, { |
03aef4b6 DS |
92 | RANGE(-10, 10), |
93 | RANGE(-5, 5), | |
94 | RANGE(-2.5, 2.5), | |
95 | RANGE(-1, 1), | |
96 | RANGE(-0.5, 0.5), | |
97 | RANGE(-0.25, 0.25), | |
98 | RANGE(-0.1, 0.1), | |
99 | RANGE(-0.05, 0.05), | |
100 | RANGE(0, 20), | |
101 | RANGE(0, 10), | |
102 | RANGE(0, 5), | |
103 | RANGE(0, 2), | |
104 | RANGE(0, 1), | |
105 | RANGE(0, 0.5), | |
106 | RANGE(0, 0.2), | |
107 | RANGE(0, 0.1), | |
108 | } | |
109 | }; | |
9ced1de6 | 110 | static const struct comedi_lrange range_ni_E_ai_limited = { 8, { |
03aef4b6 DS |
111 | RANGE(-10, 10), |
112 | RANGE(-5, 5), | |
113 | RANGE(-1, 1), | |
114 | RANGE(-0.1, 0.1), | |
115 | RANGE(0, 10), | |
116 | RANGE(0, 5), | |
117 | RANGE(0, 1), | |
118 | RANGE(0, 0.1), | |
119 | } | |
120 | }; | |
9ced1de6 | 121 | static const struct comedi_lrange range_ni_E_ai_limited14 = { 14, { |
03aef4b6 DS |
122 | RANGE(-10, 10), |
123 | RANGE(-5, 5), | |
124 | RANGE(-2, 2), | |
125 | RANGE(-1, 1), | |
126 | RANGE(-0.5, 0.5), | |
127 | RANGE(-0.2, 0.2), | |
128 | RANGE(-0.1, 0.1), | |
129 | RANGE(0, 10), | |
130 | RANGE(0, 5), | |
131 | RANGE(0, 2), | |
132 | RANGE(0, 1), | |
133 | RANGE(0, 0.5), | |
134 | RANGE(0, 0.2), | |
135 | RANGE(0, 0.1), | |
136 | } | |
137 | }; | |
9ced1de6 | 138 | static const struct comedi_lrange range_ni_E_ai_bipolar4 = { 4, { |
03aef4b6 DS |
139 | RANGE(-10, 10), |
140 | RANGE(-5, 5), | |
141 | RANGE(-0.5, 0.5), | |
142 | RANGE(-0.05, 0.05), | |
143 | } | |
144 | }; | |
9ced1de6 | 145 | static const struct comedi_lrange range_ni_E_ai_611x = { 8, { |
03aef4b6 DS |
146 | RANGE(-50, 50), |
147 | RANGE(-20, 20), | |
148 | RANGE(-10, 10), | |
149 | RANGE(-5, 5), | |
150 | RANGE(-2, 2), | |
151 | RANGE(-1, 1), | |
152 | RANGE(-0.5, 0.5), | |
153 | RANGE(-0.2, 0.2), | |
154 | } | |
155 | }; | |
9ced1de6 | 156 | static const struct comedi_lrange range_ni_M_ai_622x = { 4, { |
03aef4b6 DS |
157 | RANGE(-10, 10), |
158 | RANGE(-5, 5), | |
159 | RANGE(-1, 1), | |
160 | RANGE(-0.2, 0.2), | |
161 | } | |
162 | }; | |
9ced1de6 | 163 | static const struct comedi_lrange range_ni_M_ai_628x = { 7, { |
03aef4b6 DS |
164 | RANGE(-10, 10), |
165 | RANGE(-5, 5), | |
166 | RANGE(-2, 2), | |
167 | RANGE(-1, 1), | |
168 | RANGE(-0.5, 0.5), | |
169 | RANGE(-0.2, 0.2), | |
170 | RANGE(-0.1, 0.1), | |
171 | } | |
172 | }; | |
9ced1de6 | 173 | static const struct comedi_lrange range_ni_S_ai_6143 = { 1, { |
03aef4b6 DS |
174 | RANGE(-5, +5), |
175 | } | |
176 | }; | |
9ced1de6 | 177 | static const struct comedi_lrange range_ni_E_ao_ext = { 4, { |
03aef4b6 DS |
178 | RANGE(-10, 10), |
179 | RANGE(0, 10), | |
180 | RANGE_ext(-1, 1), | |
181 | RANGE_ext(0, 1), | |
182 | } | |
183 | }; | |
184 | ||
9ced1de6 | 185 | static const struct comedi_lrange *const ni_range_lkup[] = { |
03aef4b6 DS |
186 | [ai_gain_16] = &range_ni_E_ai, |
187 | [ai_gain_8] = &range_ni_E_ai_limited, | |
188 | [ai_gain_14] = &range_ni_E_ai_limited14, | |
189 | [ai_gain_4] = &range_ni_E_ai_bipolar4, | |
190 | [ai_gain_611x] = &range_ni_E_ai_611x, | |
191 | [ai_gain_622x] = &range_ni_M_ai_622x, | |
192 | [ai_gain_628x] = &range_ni_M_ai_628x, | |
193 | [ai_gain_6143] = &range_ni_S_ai_6143 | |
194 | }; | |
195 | ||
da91b269 BP |
196 | static int ni_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, |
197 | struct comedi_insn *insn, unsigned int *data); | |
198 | static int ni_dio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, | |
199 | struct comedi_insn *insn, unsigned int *data); | |
200 | static int ni_cdio_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, | |
201 | struct comedi_cmd *cmd); | |
202 | static int ni_cdio_cmd(struct comedi_device *dev, struct comedi_subdevice *s); | |
203 | static int ni_cdio_cancel(struct comedi_device *dev, struct comedi_subdevice *s); | |
204 | static void handle_cdio_interrupt(struct comedi_device *dev); | |
205 | static int ni_cdo_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, | |
03aef4b6 DS |
206 | unsigned int trignum); |
207 | ||
da91b269 BP |
208 | static int ni_serial_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, |
209 | struct comedi_insn *insn, unsigned int *data); | |
210 | static int ni_serial_hw_readwrite8(struct comedi_device *dev, struct comedi_subdevice *s, | |
03aef4b6 | 211 | unsigned char data_out, unsigned char *data_in); |
da91b269 | 212 | static int ni_serial_sw_readwrite8(struct comedi_device *dev, struct comedi_subdevice *s, |
03aef4b6 DS |
213 | unsigned char data_out, unsigned char *data_in); |
214 | ||
da91b269 BP |
215 | static int ni_calib_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, |
216 | struct comedi_insn *insn, unsigned int *data); | |
217 | static int ni_calib_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, | |
218 | struct comedi_insn *insn, unsigned int *data); | |
03aef4b6 | 219 | |
da91b269 BP |
220 | static int ni_eeprom_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, |
221 | struct comedi_insn *insn, unsigned int *data); | |
222 | static int ni_m_series_eeprom_insn_read(struct comedi_device *dev, | |
223 | struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data); | |
03aef4b6 | 224 | |
da91b269 BP |
225 | static int ni_pfi_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, |
226 | struct comedi_insn *insn, unsigned int *data); | |
227 | static int ni_pfi_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, | |
228 | struct comedi_insn *insn, unsigned int *data); | |
229 | static unsigned ni_old_get_pfi_routing(struct comedi_device *dev, unsigned chan); | |
03aef4b6 | 230 | |
da91b269 BP |
231 | static void ni_rtsi_init(struct comedi_device *dev); |
232 | static int ni_rtsi_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, | |
233 | struct comedi_insn *insn, unsigned int *data); | |
234 | static int ni_rtsi_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, | |
235 | struct comedi_insn *insn, unsigned int *data); | |
03aef4b6 | 236 | |
da91b269 BP |
237 | static void caldac_setup(struct comedi_device *dev, struct comedi_subdevice *s); |
238 | static int ni_read_eeprom(struct comedi_device *dev, int addr); | |
03aef4b6 DS |
239 | |
240 | #ifdef DEBUG_STATUS_A | |
241 | static void ni_mio_print_status_a(int status); | |
242 | #else | |
243 | #define ni_mio_print_status_a(a) | |
244 | #endif | |
245 | #ifdef DEBUG_STATUS_B | |
246 | static void ni_mio_print_status_b(int status); | |
247 | #else | |
248 | #define ni_mio_print_status_b(a) | |
249 | #endif | |
250 | ||
da91b269 | 251 | static int ni_ai_reset(struct comedi_device *dev, struct comedi_subdevice *s); |
03aef4b6 | 252 | #ifndef PCIDMA |
da91b269 BP |
253 | static void ni_handle_fifo_half_full(struct comedi_device *dev); |
254 | static int ni_ao_fifo_half_empty(struct comedi_device *dev, struct comedi_subdevice *s); | |
03aef4b6 | 255 | #endif |
da91b269 BP |
256 | static void ni_handle_fifo_dregs(struct comedi_device *dev); |
257 | static int ni_ai_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, | |
03aef4b6 | 258 | unsigned int trignum); |
da91b269 | 259 | static void ni_load_channelgain_list(struct comedi_device *dev, unsigned int n_chan, |
03aef4b6 | 260 | unsigned int *list); |
da91b269 | 261 | static void shutdown_ai_command(struct comedi_device *dev); |
03aef4b6 | 262 | |
da91b269 | 263 | static int ni_ao_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, |
03aef4b6 DS |
264 | unsigned int trignum); |
265 | ||
da91b269 | 266 | static int ni_ao_reset(struct comedi_device *dev, struct comedi_subdevice *s); |
03aef4b6 DS |
267 | |
268 | static int ni_8255_callback(int dir, int port, int data, unsigned long arg); | |
269 | ||
da91b269 BP |
270 | static int ni_gpct_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, |
271 | struct comedi_insn *insn, unsigned int *data); | |
272 | static int ni_gpct_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, | |
273 | struct comedi_insn *insn, unsigned int *data); | |
274 | static int ni_gpct_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, | |
275 | struct comedi_insn *insn, unsigned int *data); | |
276 | static int ni_gpct_cmd(struct comedi_device *dev, struct comedi_subdevice *s); | |
277 | static int ni_gpct_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, | |
278 | struct comedi_cmd *cmd); | |
279 | static int ni_gpct_cancel(struct comedi_device *dev, struct comedi_subdevice *s); | |
280 | static void handle_gpct_interrupt(struct comedi_device *dev, | |
03aef4b6 DS |
281 | unsigned short counter_index); |
282 | ||
da91b269 BP |
283 | static int init_cs5529(struct comedi_device *dev); |
284 | static int cs5529_do_conversion(struct comedi_device *dev, unsigned short *data); | |
285 | static int cs5529_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, | |
286 | struct comedi_insn *insn, unsigned int *data); | |
03aef4b6 | 287 | #ifdef NI_CS5529_DEBUG |
da91b269 | 288 | static unsigned int cs5529_config_read(struct comedi_device *dev, |
03aef4b6 DS |
289 | unsigned int reg_select_bits); |
290 | #endif | |
da91b269 | 291 | static void cs5529_config_write(struct comedi_device *dev, unsigned int value, |
03aef4b6 DS |
292 | unsigned int reg_select_bits); |
293 | ||
da91b269 BP |
294 | static int ni_m_series_pwm_config(struct comedi_device *dev, struct comedi_subdevice *s, |
295 | struct comedi_insn *insn, unsigned int *data); | |
296 | static int ni_6143_pwm_config(struct comedi_device *dev, struct comedi_subdevice *s, | |
297 | struct comedi_insn *insn, unsigned int *data); | |
03aef4b6 | 298 | |
da91b269 | 299 | static int ni_set_master_clock(struct comedi_device *dev, unsigned source, |
03aef4b6 | 300 | unsigned period_ns); |
da91b269 BP |
301 | static void ack_a_interrupt(struct comedi_device *dev, unsigned short a_status); |
302 | static void ack_b_interrupt(struct comedi_device *dev, unsigned short b_status); | |
03aef4b6 DS |
303 | |
304 | enum aimodes { | |
305 | AIMODE_NONE = 0, | |
306 | AIMODE_HALF_FULL = 1, | |
307 | AIMODE_SCAN = 2, | |
308 | AIMODE_SAMPLE = 3, | |
309 | }; | |
310 | ||
311 | enum ni_common_subdevices { | |
312 | NI_AI_SUBDEV, | |
313 | NI_AO_SUBDEV, | |
314 | NI_DIO_SUBDEV, | |
315 | NI_8255_DIO_SUBDEV, | |
316 | NI_UNUSED_SUBDEV, | |
317 | NI_CALIBRATION_SUBDEV, | |
318 | NI_EEPROM_SUBDEV, | |
319 | NI_PFI_DIO_SUBDEV, | |
320 | NI_CS5529_CALIBRATION_SUBDEV, | |
321 | NI_SERIAL_SUBDEV, | |
322 | NI_RTSI_SUBDEV, | |
323 | NI_GPCT0_SUBDEV, | |
324 | NI_GPCT1_SUBDEV, | |
325 | NI_FREQ_OUT_SUBDEV, | |
326 | NI_NUM_SUBDEVICES | |
327 | }; | |
328 | static inline unsigned NI_GPCT_SUBDEV(unsigned counter_index) | |
329 | { | |
330 | switch (counter_index) { | |
331 | case 0: | |
332 | return NI_GPCT0_SUBDEV; | |
333 | break; | |
334 | case 1: | |
335 | return NI_GPCT1_SUBDEV; | |
336 | break; | |
337 | default: | |
338 | break; | |
339 | } | |
340 | BUG(); | |
341 | return NI_GPCT0_SUBDEV; | |
342 | } | |
343 | ||
344 | enum timebase_nanoseconds { | |
345 | TIMEBASE_1_NS = 50, | |
346 | TIMEBASE_2_NS = 10000 | |
347 | }; | |
348 | ||
349 | #define SERIAL_DISABLED 0 | |
350 | #define SERIAL_600NS 600 | |
351 | #define SERIAL_1_2US 1200 | |
352 | #define SERIAL_10US 10000 | |
353 | ||
354 | static const int num_adc_stages_611x = 3; | |
355 | ||
da91b269 | 356 | static void handle_a_interrupt(struct comedi_device *dev, unsigned short status, |
03aef4b6 | 357 | unsigned ai_mite_status); |
da91b269 | 358 | static void handle_b_interrupt(struct comedi_device *dev, unsigned short status, |
03aef4b6 | 359 | unsigned ao_mite_status); |
da91b269 BP |
360 | static void get_last_sample_611x(struct comedi_device *dev); |
361 | static void get_last_sample_6143(struct comedi_device *dev); | |
03aef4b6 | 362 | |
da91b269 | 363 | static inline void ni_set_bitfield(struct comedi_device *dev, int reg, |
03aef4b6 DS |
364 | unsigned bit_mask, unsigned bit_values) |
365 | { | |
366 | unsigned long flags; | |
367 | ||
368 | comedi_spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags); | |
369 | switch (reg) { | |
370 | case Interrupt_A_Enable_Register: | |
371 | devpriv->int_a_enable_reg &= ~bit_mask; | |
372 | devpriv->int_a_enable_reg |= bit_values & bit_mask; | |
373 | devpriv->stc_writew(dev, devpriv->int_a_enable_reg, | |
374 | Interrupt_A_Enable_Register); | |
375 | break; | |
376 | case Interrupt_B_Enable_Register: | |
377 | devpriv->int_b_enable_reg &= ~bit_mask; | |
378 | devpriv->int_b_enable_reg |= bit_values & bit_mask; | |
379 | devpriv->stc_writew(dev, devpriv->int_b_enable_reg, | |
380 | Interrupt_B_Enable_Register); | |
381 | break; | |
382 | case IO_Bidirection_Pin_Register: | |
383 | devpriv->io_bidirection_pin_reg &= ~bit_mask; | |
384 | devpriv->io_bidirection_pin_reg |= bit_values & bit_mask; | |
385 | devpriv->stc_writew(dev, devpriv->io_bidirection_pin_reg, | |
386 | IO_Bidirection_Pin_Register); | |
387 | break; | |
388 | case AI_AO_Select: | |
389 | devpriv->ai_ao_select_reg &= ~bit_mask; | |
390 | devpriv->ai_ao_select_reg |= bit_values & bit_mask; | |
391 | ni_writeb(devpriv->ai_ao_select_reg, AI_AO_Select); | |
392 | break; | |
393 | case G0_G1_Select: | |
394 | devpriv->g0_g1_select_reg &= ~bit_mask; | |
395 | devpriv->g0_g1_select_reg |= bit_values & bit_mask; | |
396 | ni_writeb(devpriv->g0_g1_select_reg, G0_G1_Select); | |
397 | break; | |
398 | default: | |
399 | rt_printk("Warning %s() called with invalid register\n", | |
ddcb01d4 | 400 | __func__); |
03aef4b6 DS |
401 | rt_printk("reg is %d\n", reg); |
402 | break; | |
403 | } | |
404 | mmiowb(); | |
405 | comedi_spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags); | |
406 | } | |
407 | ||
408 | #ifdef PCIDMA | |
da91b269 | 409 | static int ni_ai_drain_dma(struct comedi_device *dev); |
03aef4b6 DS |
410 | |
411 | /* DMA channel setup */ | |
412 | ||
2696fb57 | 413 | /* negative channel means no channel */ |
da91b269 | 414 | static inline void ni_set_ai_dma_channel(struct comedi_device *dev, int channel) |
03aef4b6 DS |
415 | { |
416 | unsigned bitfield; | |
417 | ||
418 | if (channel >= 0) { | |
419 | bitfield = | |
420 | (ni_stc_dma_channel_select_bitfield(channel) << | |
421 | AI_DMA_Select_Shift) & AI_DMA_Select_Mask; | |
422 | } else { | |
423 | bitfield = 0; | |
424 | } | |
425 | ni_set_bitfield(dev, AI_AO_Select, AI_DMA_Select_Mask, bitfield); | |
426 | } | |
427 | ||
2696fb57 | 428 | /* negative channel means no channel */ |
da91b269 | 429 | static inline void ni_set_ao_dma_channel(struct comedi_device *dev, int channel) |
03aef4b6 DS |
430 | { |
431 | unsigned bitfield; | |
432 | ||
433 | if (channel >= 0) { | |
434 | bitfield = | |
435 | (ni_stc_dma_channel_select_bitfield(channel) << | |
436 | AO_DMA_Select_Shift) & AO_DMA_Select_Mask; | |
437 | } else { | |
438 | bitfield = 0; | |
439 | } | |
440 | ni_set_bitfield(dev, AI_AO_Select, AO_DMA_Select_Mask, bitfield); | |
441 | } | |
442 | ||
2696fb57 | 443 | /* negative mite_channel means no channel */ |
da91b269 | 444 | static inline void ni_set_gpct_dma_channel(struct comedi_device *dev, |
03aef4b6 DS |
445 | unsigned gpct_index, int mite_channel) |
446 | { | |
447 | unsigned bitfield; | |
448 | ||
449 | if (mite_channel >= 0) { | |
450 | bitfield = GPCT_DMA_Select_Bits(gpct_index, mite_channel); | |
451 | } else { | |
452 | bitfield = 0; | |
453 | } | |
454 | ni_set_bitfield(dev, G0_G1_Select, GPCT_DMA_Select_Mask(gpct_index), | |
455 | bitfield); | |
456 | } | |
457 | ||
2696fb57 | 458 | /* negative mite_channel means no channel */ |
da91b269 | 459 | static inline void ni_set_cdo_dma_channel(struct comedi_device *dev, int mite_channel) |
03aef4b6 DS |
460 | { |
461 | unsigned long flags; | |
462 | ||
463 | comedi_spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags); | |
464 | devpriv->cdio_dma_select_reg &= ~CDO_DMA_Select_Mask; | |
465 | if (mite_channel >= 0) { | |
466 | /*XXX just guessing ni_stc_dma_channel_select_bitfield() returns the right bits, | |
467 | under the assumption the cdio dma selection works just like ai/ao/gpct. | |
468 | Definitely works for dma channels 0 and 1. */ | |
469 | devpriv->cdio_dma_select_reg |= | |
470 | (ni_stc_dma_channel_select_bitfield(mite_channel) << | |
471 | CDO_DMA_Select_Shift) & CDO_DMA_Select_Mask; | |
472 | } | |
473 | ni_writeb(devpriv->cdio_dma_select_reg, M_Offset_CDIO_DMA_Select); | |
474 | mmiowb(); | |
475 | comedi_spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags); | |
476 | } | |
477 | ||
da91b269 | 478 | static int ni_request_ai_mite_channel(struct comedi_device *dev) |
03aef4b6 DS |
479 | { |
480 | unsigned long flags; | |
481 | ||
482 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags); | |
483 | BUG_ON(devpriv->ai_mite_chan); | |
484 | devpriv->ai_mite_chan = | |
485 | mite_request_channel(devpriv->mite, devpriv->ai_mite_ring); | |
486 | if (devpriv->ai_mite_chan == NULL) { | |
487 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, | |
488 | flags); | |
489 | comedi_error(dev, | |
490 | "failed to reserve mite dma channel for analog input."); | |
491 | return -EBUSY; | |
492 | } | |
493 | devpriv->ai_mite_chan->dir = COMEDI_INPUT; | |
494 | ni_set_ai_dma_channel(dev, devpriv->ai_mite_chan->channel); | |
495 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
496 | return 0; | |
497 | } | |
498 | ||
da91b269 | 499 | static int ni_request_ao_mite_channel(struct comedi_device *dev) |
03aef4b6 DS |
500 | { |
501 | unsigned long flags; | |
502 | ||
503 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags); | |
504 | BUG_ON(devpriv->ao_mite_chan); | |
505 | devpriv->ao_mite_chan = | |
506 | mite_request_channel(devpriv->mite, devpriv->ao_mite_ring); | |
507 | if (devpriv->ao_mite_chan == NULL) { | |
508 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, | |
509 | flags); | |
510 | comedi_error(dev, | |
511 | "failed to reserve mite dma channel for analog outut."); | |
512 | return -EBUSY; | |
513 | } | |
514 | devpriv->ao_mite_chan->dir = COMEDI_OUTPUT; | |
515 | ni_set_ao_dma_channel(dev, devpriv->ao_mite_chan->channel); | |
516 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
517 | return 0; | |
518 | } | |
519 | ||
da91b269 | 520 | static int ni_request_gpct_mite_channel(struct comedi_device *dev, |
03aef4b6 DS |
521 | unsigned gpct_index, enum comedi_io_direction direction) |
522 | { | |
523 | unsigned long flags; | |
524 | struct mite_channel *mite_chan; | |
525 | ||
526 | BUG_ON(gpct_index >= NUM_GPCT); | |
527 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags); | |
528 | BUG_ON(devpriv->counter_dev->counters[gpct_index].mite_chan); | |
529 | mite_chan = | |
530 | mite_request_channel(devpriv->mite, | |
531 | devpriv->gpct_mite_ring[gpct_index]); | |
532 | if (mite_chan == NULL) { | |
533 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, | |
534 | flags); | |
535 | comedi_error(dev, | |
536 | "failed to reserve mite dma channel for counter."); | |
537 | return -EBUSY; | |
538 | } | |
539 | mite_chan->dir = direction; | |
540 | ni_tio_set_mite_channel(&devpriv->counter_dev->counters[gpct_index], | |
541 | mite_chan); | |
542 | ni_set_gpct_dma_channel(dev, gpct_index, mite_chan->channel); | |
543 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
544 | return 0; | |
545 | } | |
546 | ||
2696fb57 | 547 | #endif /* PCIDMA */ |
03aef4b6 | 548 | |
da91b269 | 549 | static int ni_request_cdo_mite_channel(struct comedi_device *dev) |
03aef4b6 DS |
550 | { |
551 | #ifdef PCIDMA | |
552 | unsigned long flags; | |
553 | ||
554 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags); | |
555 | BUG_ON(devpriv->cdo_mite_chan); | |
556 | devpriv->cdo_mite_chan = | |
557 | mite_request_channel(devpriv->mite, devpriv->cdo_mite_ring); | |
558 | if (devpriv->cdo_mite_chan == NULL) { | |
559 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, | |
560 | flags); | |
561 | comedi_error(dev, | |
562 | "failed to reserve mite dma channel for correlated digital outut."); | |
563 | return -EBUSY; | |
564 | } | |
565 | devpriv->cdo_mite_chan->dir = COMEDI_OUTPUT; | |
566 | ni_set_cdo_dma_channel(dev, devpriv->cdo_mite_chan->channel); | |
567 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
2696fb57 | 568 | #endif /* PCIDMA */ |
03aef4b6 DS |
569 | return 0; |
570 | } | |
571 | ||
da91b269 | 572 | static void ni_release_ai_mite_channel(struct comedi_device *dev) |
03aef4b6 DS |
573 | { |
574 | #ifdef PCIDMA | |
575 | unsigned long flags; | |
576 | ||
577 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags); | |
578 | if (devpriv->ai_mite_chan) { | |
579 | ni_set_ai_dma_channel(dev, -1); | |
580 | mite_release_channel(devpriv->ai_mite_chan); | |
581 | devpriv->ai_mite_chan = NULL; | |
582 | } | |
583 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
2696fb57 | 584 | #endif /* PCIDMA */ |
03aef4b6 DS |
585 | } |
586 | ||
da91b269 | 587 | static void ni_release_ao_mite_channel(struct comedi_device *dev) |
03aef4b6 DS |
588 | { |
589 | #ifdef PCIDMA | |
590 | unsigned long flags; | |
591 | ||
592 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags); | |
593 | if (devpriv->ao_mite_chan) { | |
594 | ni_set_ao_dma_channel(dev, -1); | |
595 | mite_release_channel(devpriv->ao_mite_chan); | |
596 | devpriv->ao_mite_chan = NULL; | |
597 | } | |
598 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
2696fb57 | 599 | #endif /* PCIDMA */ |
03aef4b6 DS |
600 | } |
601 | ||
da91b269 | 602 | void ni_release_gpct_mite_channel(struct comedi_device *dev, unsigned gpct_index) |
03aef4b6 DS |
603 | { |
604 | #ifdef PCIDMA | |
605 | unsigned long flags; | |
606 | ||
607 | BUG_ON(gpct_index >= NUM_GPCT); | |
608 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags); | |
609 | if (devpriv->counter_dev->counters[gpct_index].mite_chan) { | |
610 | struct mite_channel *mite_chan = | |
611 | devpriv->counter_dev->counters[gpct_index].mite_chan; | |
612 | ||
613 | ni_set_gpct_dma_channel(dev, gpct_index, -1); | |
614 | ni_tio_set_mite_channel(&devpriv->counter_dev-> | |
615 | counters[gpct_index], NULL); | |
616 | mite_release_channel(mite_chan); | |
617 | } | |
618 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
2696fb57 | 619 | #endif /* PCIDMA */ |
03aef4b6 DS |
620 | } |
621 | ||
da91b269 | 622 | static void ni_release_cdo_mite_channel(struct comedi_device *dev) |
03aef4b6 DS |
623 | { |
624 | #ifdef PCIDMA | |
625 | unsigned long flags; | |
626 | ||
627 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags); | |
628 | if (devpriv->cdo_mite_chan) { | |
629 | ni_set_cdo_dma_channel(dev, -1); | |
630 | mite_release_channel(devpriv->cdo_mite_chan); | |
631 | devpriv->cdo_mite_chan = NULL; | |
632 | } | |
633 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
2696fb57 | 634 | #endif /* PCIDMA */ |
03aef4b6 DS |
635 | } |
636 | ||
2696fb57 | 637 | /* e-series boards use the second irq signals to generate dma requests for their counters */ |
03aef4b6 | 638 | #ifdef PCIDMA |
da91b269 | 639 | static void ni_e_series_enable_second_irq(struct comedi_device *dev, |
03aef4b6 DS |
640 | unsigned gpct_index, short enable) |
641 | { | |
642 | if (boardtype.reg_type & ni_reg_m_series_mask) | |
643 | return; | |
644 | switch (gpct_index) { | |
645 | case 0: | |
646 | if (enable) { | |
647 | devpriv->stc_writew(dev, G0_Gate_Second_Irq_Enable, | |
648 | Second_IRQ_A_Enable_Register); | |
649 | } else { | |
650 | devpriv->stc_writew(dev, 0, | |
651 | Second_IRQ_A_Enable_Register); | |
652 | } | |
653 | break; | |
654 | case 1: | |
655 | if (enable) { | |
656 | devpriv->stc_writew(dev, G1_Gate_Second_Irq_Enable, | |
657 | Second_IRQ_B_Enable_Register); | |
658 | } else { | |
659 | devpriv->stc_writew(dev, 0, | |
660 | Second_IRQ_B_Enable_Register); | |
661 | } | |
662 | break; | |
663 | default: | |
664 | BUG(); | |
665 | break; | |
666 | } | |
667 | } | |
2696fb57 | 668 | #endif /* PCIDMA */ |
03aef4b6 | 669 | |
da91b269 | 670 | static void ni_clear_ai_fifo(struct comedi_device *dev) |
03aef4b6 DS |
671 | { |
672 | if (boardtype.reg_type == ni_reg_6143) { | |
2696fb57 BP |
673 | /* Flush the 6143 data FIFO */ |
674 | ni_writel(0x10, AIFIFO_Control_6143); /* Flush fifo */ | |
675 | ni_writel(0x00, AIFIFO_Control_6143); /* Flush fifo */ | |
676 | while (ni_readl(AIFIFO_Status_6143) & 0x10) ; /* Wait for complete */ | |
03aef4b6 DS |
677 | } else { |
678 | devpriv->stc_writew(dev, 1, ADC_FIFO_Clear); | |
679 | if (boardtype.reg_type == ni_reg_625x) { | |
680 | ni_writeb(0, M_Offset_Static_AI_Control(0)); | |
681 | ni_writeb(1, M_Offset_Static_AI_Control(0)); | |
682 | #if 0 | |
683 | /* the NI example code does 3 convert pulses for 625x boards, | |
684 | but that appears to be wrong in practice. */ | |
685 | devpriv->stc_writew(dev, AI_CONVERT_Pulse, | |
686 | AI_Command_1_Register); | |
687 | devpriv->stc_writew(dev, AI_CONVERT_Pulse, | |
688 | AI_Command_1_Register); | |
689 | devpriv->stc_writew(dev, AI_CONVERT_Pulse, | |
690 | AI_Command_1_Register); | |
691 | #endif | |
692 | } | |
693 | } | |
694 | } | |
695 | ||
da91b269 | 696 | static void win_out2(struct comedi_device *dev, uint32_t data, int reg) |
03aef4b6 DS |
697 | { |
698 | devpriv->stc_writew(dev, data >> 16, reg); | |
699 | devpriv->stc_writew(dev, data & 0xffff, reg + 1); | |
700 | } | |
701 | ||
da91b269 | 702 | static uint32_t win_in2(struct comedi_device *dev, int reg) |
03aef4b6 DS |
703 | { |
704 | uint32_t bits; | |
705 | bits = devpriv->stc_readw(dev, reg) << 16; | |
706 | bits |= devpriv->stc_readw(dev, reg + 1); | |
707 | return bits; | |
708 | } | |
709 | ||
710 | #define ao_win_out(data,addr) ni_ao_win_outw(dev,data,addr) | |
da91b269 | 711 | static inline void ni_ao_win_outw(struct comedi_device *dev, uint16_t data, int addr) |
03aef4b6 DS |
712 | { |
713 | unsigned long flags; | |
714 | ||
715 | comedi_spin_lock_irqsave(&devpriv->window_lock, flags); | |
716 | ni_writew(addr, AO_Window_Address_611x); | |
717 | ni_writew(data, AO_Window_Data_611x); | |
718 | comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags); | |
719 | } | |
720 | ||
da91b269 | 721 | static inline void ni_ao_win_outl(struct comedi_device *dev, uint32_t data, int addr) |
03aef4b6 DS |
722 | { |
723 | unsigned long flags; | |
724 | ||
725 | comedi_spin_lock_irqsave(&devpriv->window_lock, flags); | |
726 | ni_writew(addr, AO_Window_Address_611x); | |
727 | ni_writel(data, AO_Window_Data_611x); | |
728 | comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags); | |
729 | } | |
730 | ||
da91b269 | 731 | static inline unsigned short ni_ao_win_inw(struct comedi_device *dev, int addr) |
03aef4b6 DS |
732 | { |
733 | unsigned long flags; | |
734 | unsigned short data; | |
735 | ||
736 | comedi_spin_lock_irqsave(&devpriv->window_lock, flags); | |
737 | ni_writew(addr, AO_Window_Address_611x); | |
738 | data = ni_readw(AO_Window_Data_611x); | |
739 | comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags); | |
740 | return data; | |
741 | } | |
742 | ||
743 | /* ni_set_bits( ) allows different parts of the ni_mio_common driver to | |
744 | * share registers (such as Interrupt_A_Register) without interfering with | |
745 | * each other. | |
746 | * | |
747 | * NOTE: the switch/case statements are optimized out for a constant argument | |
748 | * so this is actually quite fast--- If you must wrap another function around this | |
749 | * make it inline to avoid a large speed penalty. | |
750 | * | |
751 | * value should only be 1 or 0. | |
752 | */ | |
da91b269 | 753 | static inline void ni_set_bits(struct comedi_device *dev, int reg, unsigned bits, |
03aef4b6 DS |
754 | unsigned value) |
755 | { | |
756 | unsigned bit_values; | |
757 | ||
758 | if (value) | |
759 | bit_values = bits; | |
760 | else | |
761 | bit_values = 0; | |
762 | ni_set_bitfield(dev, reg, bits, bit_values); | |
763 | } | |
764 | ||
70265d24 | 765 | static irqreturn_t ni_E_interrupt(int irq, void *d) |
03aef4b6 | 766 | { |
71b5f4f1 | 767 | struct comedi_device *dev = d; |
03aef4b6 DS |
768 | unsigned short a_status; |
769 | unsigned short b_status; | |
770 | unsigned int ai_mite_status = 0; | |
771 | unsigned int ao_mite_status = 0; | |
772 | unsigned long flags; | |
773 | #ifdef PCIDMA | |
774 | struct mite_struct *mite = devpriv->mite; | |
775 | #endif | |
776 | ||
777 | if (dev->attached == 0) | |
778 | return IRQ_NONE; | |
2696fb57 | 779 | smp_mb(); /* make sure dev->attached is checked before handler does anything else. */ |
03aef4b6 | 780 | |
2696fb57 | 781 | /* lock to avoid race with comedi_poll */ |
03aef4b6 DS |
782 | comedi_spin_lock_irqsave(&dev->spinlock, flags); |
783 | a_status = devpriv->stc_readw(dev, AI_Status_1_Register); | |
784 | b_status = devpriv->stc_readw(dev, AO_Status_1_Register); | |
785 | #ifdef PCIDMA | |
786 | if (mite) { | |
787 | unsigned long flags_too; | |
788 | ||
789 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, | |
790 | flags_too); | |
791 | if (devpriv->ai_mite_chan) { | |
792 | ai_mite_status = mite_get_status(devpriv->ai_mite_chan); | |
793 | if (ai_mite_status & CHSR_LINKC) | |
794 | writel(CHOR_CLRLC, | |
795 | devpriv->mite->mite_io_addr + | |
796 | MITE_CHOR(devpriv->ai_mite_chan-> | |
797 | channel)); | |
798 | } | |
799 | if (devpriv->ao_mite_chan) { | |
800 | ao_mite_status = mite_get_status(devpriv->ao_mite_chan); | |
801 | if (ao_mite_status & CHSR_LINKC) | |
802 | writel(CHOR_CLRLC, | |
803 | mite->mite_io_addr + | |
804 | MITE_CHOR(devpriv->ao_mite_chan-> | |
805 | channel)); | |
806 | } | |
807 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, | |
808 | flags_too); | |
809 | } | |
810 | #endif | |
811 | ack_a_interrupt(dev, a_status); | |
812 | ack_b_interrupt(dev, b_status); | |
813 | if ((a_status & Interrupt_A_St) || (ai_mite_status & CHSR_INT)) | |
814 | handle_a_interrupt(dev, a_status, ai_mite_status); | |
815 | if ((b_status & Interrupt_B_St) || (ao_mite_status & CHSR_INT)) | |
816 | handle_b_interrupt(dev, b_status, ao_mite_status); | |
817 | handle_gpct_interrupt(dev, 0); | |
818 | handle_gpct_interrupt(dev, 1); | |
819 | handle_cdio_interrupt(dev); | |
820 | ||
821 | comedi_spin_unlock_irqrestore(&dev->spinlock, flags); | |
822 | return IRQ_HANDLED; | |
823 | } | |
824 | ||
825 | #ifdef PCIDMA | |
da91b269 | 826 | static void ni_sync_ai_dma(struct comedi_device *dev) |
03aef4b6 | 827 | { |
34c43922 | 828 | struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV; |
03aef4b6 DS |
829 | unsigned long flags; |
830 | ||
831 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags); | |
832 | if (devpriv->ai_mite_chan) | |
833 | mite_sync_input_dma(devpriv->ai_mite_chan, s->async); | |
834 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
835 | } | |
836 | ||
71b5f4f1 | 837 | static void mite_handle_b_linkc(struct mite_struct *mite, struct comedi_device * dev) |
03aef4b6 | 838 | { |
34c43922 | 839 | struct comedi_subdevice *s = dev->subdevices + NI_AO_SUBDEV; |
03aef4b6 DS |
840 | unsigned long flags; |
841 | ||
842 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags); | |
843 | if (devpriv->ao_mite_chan) { | |
844 | mite_sync_output_dma(devpriv->ao_mite_chan, s->async); | |
845 | } | |
846 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
847 | } | |
848 | ||
da91b269 | 849 | static int ni_ao_wait_for_dma_load(struct comedi_device *dev) |
03aef4b6 DS |
850 | { |
851 | static const int timeout = 10000; | |
852 | int i; | |
853 | for (i = 0; i < timeout; i++) { | |
854 | unsigned short b_status; | |
855 | ||
856 | b_status = devpriv->stc_readw(dev, AO_Status_1_Register); | |
857 | if (b_status & AO_FIFO_Half_Full_St) | |
858 | break; | |
859 | /* if we poll too often, the pci bus activity seems | |
860 | to slow the dma transfer down */ | |
861 | comedi_udelay(10); | |
862 | } | |
863 | if (i == timeout) { | |
864 | comedi_error(dev, "timed out waiting for dma load"); | |
865 | return -EPIPE; | |
866 | } | |
867 | return 0; | |
868 | } | |
869 | ||
2696fb57 | 870 | #endif /* PCIDMA */ |
da91b269 | 871 | static void ni_handle_eos(struct comedi_device *dev, struct comedi_subdevice *s) |
03aef4b6 DS |
872 | { |
873 | if (devpriv->aimode == AIMODE_SCAN) { | |
874 | #ifdef PCIDMA | |
875 | static const int timeout = 10; | |
876 | int i; | |
877 | ||
878 | for (i = 0; i < timeout; i++) { | |
879 | ni_sync_ai_dma(dev); | |
880 | if ((s->async->events & COMEDI_CB_EOS)) | |
881 | break; | |
882 | comedi_udelay(1); | |
883 | } | |
884 | #else | |
885 | ni_handle_fifo_dregs(dev); | |
886 | s->async->events |= COMEDI_CB_EOS; | |
887 | #endif | |
888 | } | |
889 | /* handle special case of single scan using AI_End_On_End_Of_Scan */ | |
890 | if ((devpriv->ai_cmd2 & AI_End_On_End_Of_Scan)) { | |
891 | shutdown_ai_command(dev); | |
892 | } | |
893 | } | |
894 | ||
da91b269 | 895 | static void shutdown_ai_command(struct comedi_device *dev) |
03aef4b6 | 896 | { |
34c43922 | 897 | struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV; |
03aef4b6 DS |
898 | |
899 | #ifdef PCIDMA | |
900 | ni_ai_drain_dma(dev); | |
901 | #endif | |
902 | ni_handle_fifo_dregs(dev); | |
903 | get_last_sample_611x(dev); | |
904 | get_last_sample_6143(dev); | |
905 | ||
906 | s->async->events |= COMEDI_CB_EOA; | |
907 | } | |
908 | ||
da91b269 | 909 | static void ni_event(struct comedi_device *dev, struct comedi_subdevice *s) |
03aef4b6 DS |
910 | { |
911 | if (s->async-> | |
912 | events & (COMEDI_CB_ERROR | COMEDI_CB_OVERFLOW | COMEDI_CB_EOA)) | |
913 | { | |
914 | switch (s - dev->subdevices) { | |
915 | case NI_AI_SUBDEV: | |
916 | ni_ai_reset(dev, s); | |
917 | break; | |
918 | case NI_AO_SUBDEV: | |
919 | ni_ao_reset(dev, s); | |
920 | break; | |
921 | case NI_GPCT0_SUBDEV: | |
922 | case NI_GPCT1_SUBDEV: | |
923 | ni_gpct_cancel(dev, s); | |
924 | break; | |
925 | case NI_DIO_SUBDEV: | |
926 | ni_cdio_cancel(dev, s); | |
927 | break; | |
928 | default: | |
929 | break; | |
930 | } | |
931 | } | |
932 | comedi_event(dev, s); | |
933 | } | |
934 | ||
da91b269 | 935 | static void handle_gpct_interrupt(struct comedi_device *dev, |
03aef4b6 DS |
936 | unsigned short counter_index) |
937 | { | |
938 | #ifdef PCIDMA | |
34c43922 | 939 | struct comedi_subdevice *s = dev->subdevices + NI_GPCT_SUBDEV(counter_index); |
03aef4b6 DS |
940 | |
941 | ni_tio_handle_interrupt(&devpriv->counter_dev->counters[counter_index], | |
942 | s); | |
943 | if (s->async->events) | |
944 | ni_event(dev, s); | |
945 | #endif | |
946 | } | |
947 | ||
da91b269 | 948 | static void ack_a_interrupt(struct comedi_device *dev, unsigned short a_status) |
03aef4b6 DS |
949 | { |
950 | unsigned short ack = 0; | |
951 | ||
952 | if (a_status & AI_SC_TC_St) { | |
953 | ack |= AI_SC_TC_Interrupt_Ack; | |
954 | } | |
955 | if (a_status & AI_START1_St) { | |
956 | ack |= AI_START1_Interrupt_Ack; | |
957 | } | |
958 | if (a_status & AI_START_St) { | |
959 | ack |= AI_START_Interrupt_Ack; | |
960 | } | |
961 | if (a_status & AI_STOP_St) { | |
962 | /* not sure why we used to ack the START here also, instead of doing it independently. Frank Hess 2007-07-06 */ | |
963 | ack |= AI_STOP_Interrupt_Ack /*| AI_START_Interrupt_Ack */ ; | |
964 | } | |
965 | if (ack) | |
966 | devpriv->stc_writew(dev, ack, Interrupt_A_Ack_Register); | |
967 | } | |
968 | ||
da91b269 | 969 | static void handle_a_interrupt(struct comedi_device *dev, unsigned short status, |
03aef4b6 DS |
970 | unsigned ai_mite_status) |
971 | { | |
34c43922 | 972 | struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV; |
03aef4b6 | 973 | |
2696fb57 | 974 | /* 67xx boards don't have ai subdevice, but their gpct0 might generate an a interrupt */ |
03aef4b6 DS |
975 | if (s->type == COMEDI_SUBD_UNUSED) |
976 | return; | |
977 | ||
978 | #ifdef DEBUG_INTERRUPT | |
979 | rt_printk | |
980 | ("ni_mio_common: interrupt: a_status=%04x ai_mite_status=%08x\n", | |
981 | status, ai_mite_status); | |
982 | ni_mio_print_status_a(status); | |
983 | #endif | |
984 | #ifdef PCIDMA | |
985 | if (ai_mite_status & CHSR_LINKC) { | |
986 | ni_sync_ai_dma(dev); | |
987 | } | |
988 | ||
989 | if (ai_mite_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_MRDY | | |
990 | CHSR_DRDY | CHSR_DRQ1 | CHSR_DRQ0 | CHSR_ERROR | | |
991 | CHSR_SABORT | CHSR_XFERR | CHSR_LxERR_mask)) { | |
992 | rt_printk | |
993 | ("unknown mite interrupt, ack! (ai_mite_status=%08x)\n", | |
994 | ai_mite_status); | |
2696fb57 | 995 | /* mite_print_chsr(ai_mite_status); */ |
03aef4b6 | 996 | s->async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA; |
2696fb57 | 997 | /* disable_irq(dev->irq); */ |
03aef4b6 DS |
998 | } |
999 | #endif | |
1000 | ||
1001 | /* test for all uncommon interrupt events at the same time */ | |
1002 | if (status & (AI_Overrun_St | AI_Overflow_St | AI_SC_TC_Error_St | | |
1003 | AI_SC_TC_St | AI_START1_St)) { | |
1004 | if (status == 0xffff) { | |
1005 | rt_printk | |
1006 | ("ni_mio_common: a_status=0xffff. Card removed?\n"); | |
1007 | /* we probably aren't even running a command now, | |
1008 | * so it's a good idea to be careful. */ | |
1009 | if (comedi_get_subdevice_runflags(s) & SRF_RUNNING) { | |
1010 | s->async->events |= | |
1011 | COMEDI_CB_ERROR | COMEDI_CB_EOA; | |
1012 | ni_event(dev, s); | |
1013 | } | |
1014 | return; | |
1015 | } | |
1016 | if (status & (AI_Overrun_St | AI_Overflow_St | | |
1017 | AI_SC_TC_Error_St)) { | |
1018 | rt_printk("ni_mio_common: ai error a_status=%04x\n", | |
1019 | status); | |
1020 | ni_mio_print_status_a(status); | |
1021 | ||
1022 | shutdown_ai_command(dev); | |
1023 | ||
1024 | s->async->events |= COMEDI_CB_ERROR; | |
1025 | if (status & (AI_Overrun_St | AI_Overflow_St)) | |
1026 | s->async->events |= COMEDI_CB_OVERFLOW; | |
1027 | ||
1028 | ni_event(dev, s); | |
1029 | ||
1030 | return; | |
1031 | } | |
1032 | if (status & AI_SC_TC_St) { | |
1033 | #ifdef DEBUG_INTERRUPT | |
1034 | rt_printk("ni_mio_common: SC_TC interrupt\n"); | |
1035 | #endif | |
1036 | if (!devpriv->ai_continuous) { | |
1037 | shutdown_ai_command(dev); | |
1038 | } | |
1039 | } | |
1040 | } | |
1041 | #ifndef PCIDMA | |
1042 | if (status & AI_FIFO_Half_Full_St) { | |
1043 | int i; | |
1044 | static const int timeout = 10; | |
1045 | /* pcmcia cards (at least 6036) seem to stop producing interrupts if we | |
1046 | *fail to get the fifo less than half full, so loop to be sure.*/ | |
1047 | for (i = 0; i < timeout; ++i) { | |
1048 | ni_handle_fifo_half_full(dev); | |
1049 | if ((devpriv->stc_readw(dev, | |
1050 | AI_Status_1_Register) & | |
1051 | AI_FIFO_Half_Full_St) == 0) | |
1052 | break; | |
1053 | } | |
1054 | } | |
2696fb57 | 1055 | #endif /* !PCIDMA */ |
03aef4b6 DS |
1056 | |
1057 | if ((status & AI_STOP_St)) { | |
1058 | ni_handle_eos(dev, s); | |
1059 | } | |
1060 | ||
1061 | ni_event(dev, s); | |
1062 | ||
1063 | #ifdef DEBUG_INTERRUPT | |
1064 | status = devpriv->stc_readw(dev, AI_Status_1_Register); | |
1065 | if (status & Interrupt_A_St) { | |
1066 | rt_printk | |
1067 | ("handle_a_interrupt: didn't clear interrupt? status=0x%x\n", | |
1068 | status); | |
1069 | } | |
1070 | #endif | |
1071 | } | |
1072 | ||
da91b269 | 1073 | static void ack_b_interrupt(struct comedi_device *dev, unsigned short b_status) |
03aef4b6 DS |
1074 | { |
1075 | unsigned short ack = 0; | |
1076 | if (b_status & AO_BC_TC_St) { | |
1077 | ack |= AO_BC_TC_Interrupt_Ack; | |
1078 | } | |
1079 | if (b_status & AO_Overrun_St) { | |
1080 | ack |= AO_Error_Interrupt_Ack; | |
1081 | } | |
1082 | if (b_status & AO_START_St) { | |
1083 | ack |= AO_START_Interrupt_Ack; | |
1084 | } | |
1085 | if (b_status & AO_START1_St) { | |
1086 | ack |= AO_START1_Interrupt_Ack; | |
1087 | } | |
1088 | if (b_status & AO_UC_TC_St) { | |
1089 | ack |= AO_UC_TC_Interrupt_Ack; | |
1090 | } | |
1091 | if (b_status & AO_UI2_TC_St) { | |
1092 | ack |= AO_UI2_TC_Interrupt_Ack; | |
1093 | } | |
1094 | if (b_status & AO_UPDATE_St) { | |
1095 | ack |= AO_UPDATE_Interrupt_Ack; | |
1096 | } | |
1097 | if (ack) | |
1098 | devpriv->stc_writew(dev, ack, Interrupt_B_Ack_Register); | |
1099 | } | |
1100 | ||
da91b269 | 1101 | static void handle_b_interrupt(struct comedi_device *dev, unsigned short b_status, |
03aef4b6 DS |
1102 | unsigned ao_mite_status) |
1103 | { | |
34c43922 | 1104 | struct comedi_subdevice *s = dev->subdevices + NI_AO_SUBDEV; |
2696fb57 | 1105 | /* unsigned short ack=0; */ |
03aef4b6 DS |
1106 | #ifdef DEBUG_INTERRUPT |
1107 | rt_printk("ni_mio_common: interrupt: b_status=%04x m1_status=%08x\n", | |
1108 | b_status, ao_mite_status); | |
1109 | ni_mio_print_status_b(b_status); | |
1110 | #endif | |
1111 | ||
1112 | #ifdef PCIDMA | |
1113 | /* Currently, mite.c requires us to handle LINKC */ | |
1114 | if (ao_mite_status & CHSR_LINKC) { | |
1115 | mite_handle_b_linkc(devpriv->mite, dev); | |
1116 | } | |
1117 | ||
1118 | if (ao_mite_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_MRDY | | |
1119 | CHSR_DRDY | CHSR_DRQ1 | CHSR_DRQ0 | CHSR_ERROR | | |
1120 | CHSR_SABORT | CHSR_XFERR | CHSR_LxERR_mask)) { | |
1121 | rt_printk | |
1122 | ("unknown mite interrupt, ack! (ao_mite_status=%08x)\n", | |
1123 | ao_mite_status); | |
2696fb57 | 1124 | /* mite_print_chsr(ao_mite_status); */ |
03aef4b6 DS |
1125 | s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR; |
1126 | } | |
1127 | #endif | |
1128 | ||
1129 | if (b_status == 0xffff) | |
1130 | return; | |
1131 | if (b_status & AO_Overrun_St) { | |
1132 | rt_printk | |
1133 | ("ni_mio_common: AO FIFO underrun status=0x%04x status2=0x%04x\n", | |
1134 | b_status, devpriv->stc_readw(dev, | |
1135 | AO_Status_2_Register)); | |
1136 | s->async->events |= COMEDI_CB_OVERFLOW; | |
1137 | } | |
1138 | ||
1139 | if (b_status & AO_BC_TC_St) { | |
1140 | MDPRINTK("ni_mio_common: AO BC_TC status=0x%04x status2=0x%04x\n", b_status, devpriv->stc_readw(dev, AO_Status_2_Register)); | |
1141 | s->async->events |= COMEDI_CB_EOA; | |
1142 | } | |
1143 | #ifndef PCIDMA | |
1144 | if (b_status & AO_FIFO_Request_St) { | |
1145 | int ret; | |
1146 | ||
1147 | ret = ni_ao_fifo_half_empty(dev, s); | |
1148 | if (!ret) { | |
1149 | rt_printk("ni_mio_common: AO buffer underrun\n"); | |
1150 | ni_set_bits(dev, Interrupt_B_Enable_Register, | |
1151 | AO_FIFO_Interrupt_Enable | | |
1152 | AO_Error_Interrupt_Enable, 0); | |
1153 | s->async->events |= COMEDI_CB_OVERFLOW; | |
1154 | } | |
1155 | } | |
1156 | #endif | |
1157 | ||
1158 | ni_event(dev, s); | |
1159 | } | |
1160 | ||
1161 | #ifdef DEBUG_STATUS_A | |
1162 | static const char *const status_a_strings[] = { | |
1163 | "passthru0", "fifo", "G0_gate", "G0_TC", | |
1164 | "stop", "start", "sc_tc", "start1", | |
1165 | "start2", "sc_tc_error", "overflow", "overrun", | |
1166 | "fifo_empty", "fifo_half_full", "fifo_full", "interrupt_a" | |
1167 | }; | |
1168 | ||
1169 | static void ni_mio_print_status_a(int status) | |
1170 | { | |
1171 | int i; | |
1172 | ||
1173 | rt_printk("A status:"); | |
1174 | for (i = 15; i >= 0; i--) { | |
1175 | if (status & (1 << i)) { | |
1176 | rt_printk(" %s", status_a_strings[i]); | |
1177 | } | |
1178 | } | |
1179 | rt_printk("\n"); | |
1180 | } | |
1181 | #endif | |
1182 | ||
1183 | #ifdef DEBUG_STATUS_B | |
1184 | static const char *const status_b_strings[] = { | |
1185 | "passthru1", "fifo", "G1_gate", "G1_TC", | |
1186 | "UI2_TC", "UPDATE", "UC_TC", "BC_TC", | |
1187 | "start1", "overrun", "start", "bc_tc_error", | |
1188 | "fifo_empty", "fifo_half_full", "fifo_full", "interrupt_b" | |
1189 | }; | |
1190 | ||
1191 | static void ni_mio_print_status_b(int status) | |
1192 | { | |
1193 | int i; | |
1194 | ||
1195 | rt_printk("B status:"); | |
1196 | for (i = 15; i >= 0; i--) { | |
1197 | if (status & (1 << i)) { | |
1198 | rt_printk(" %s", status_b_strings[i]); | |
1199 | } | |
1200 | } | |
1201 | rt_printk("\n"); | |
1202 | } | |
1203 | #endif | |
1204 | ||
1205 | #ifndef PCIDMA | |
1206 | ||
da91b269 | 1207 | static void ni_ao_fifo_load(struct comedi_device *dev, struct comedi_subdevice *s, int n) |
03aef4b6 | 1208 | { |
d163679c | 1209 | struct comedi_async *async = s->async; |
ea6d0d4c | 1210 | struct comedi_cmd *cmd = &async->cmd; |
03aef4b6 DS |
1211 | int chan; |
1212 | int i; | |
790c5541 | 1213 | short d; |
03aef4b6 DS |
1214 | u32 packed_data; |
1215 | int range; | |
1216 | int err = 1; | |
1217 | ||
1218 | chan = async->cur_chan; | |
1219 | for (i = 0; i < n; i++) { | |
1220 | err &= comedi_buf_get(async, &d); | |
1221 | if (err == 0) | |
1222 | break; | |
1223 | ||
1224 | range = CR_RANGE(cmd->chanlist[chan]); | |
1225 | ||
1226 | if (boardtype.reg_type & ni_reg_6xxx_mask) { | |
1227 | packed_data = d & 0xffff; | |
1228 | /* 6711 only has 16 bit wide ao fifo */ | |
1229 | if (boardtype.reg_type != ni_reg_6711) { | |
1230 | err &= comedi_buf_get(async, &d); | |
1231 | if (err == 0) | |
1232 | break; | |
1233 | chan++; | |
1234 | i++; | |
1235 | packed_data |= (d << 16) & 0xffff0000; | |
1236 | } | |
1237 | ni_writel(packed_data, DAC_FIFO_Data_611x); | |
1238 | } else { | |
1239 | ni_writew(d, DAC_FIFO_Data); | |
1240 | } | |
1241 | chan++; | |
1242 | chan %= cmd->chanlist_len; | |
1243 | } | |
1244 | async->cur_chan = chan; | |
1245 | if (err == 0) { | |
1246 | async->events |= COMEDI_CB_OVERFLOW; | |
1247 | } | |
1248 | } | |
1249 | ||
1250 | /* | |
1251 | * There's a small problem if the FIFO gets really low and we | |
1252 | * don't have the data to fill it. Basically, if after we fill | |
1253 | * the FIFO with all the data available, the FIFO is _still_ | |
1254 | * less than half full, we never clear the interrupt. If the | |
1255 | * IRQ is in edge mode, we never get another interrupt, because | |
1256 | * this one wasn't cleared. If in level mode, we get flooded | |
1257 | * with interrupts that we can't fulfill, because nothing ever | |
1258 | * gets put into the buffer. | |
1259 | * | |
1260 | * This kind of situation is recoverable, but it is easier to | |
1261 | * just pretend we had a FIFO underrun, since there is a good | |
1262 | * chance it will happen anyway. This is _not_ the case for | |
1263 | * RT code, as RT code might purposely be running close to the | |
1264 | * metal. Needs to be fixed eventually. | |
1265 | */ | |
da91b269 | 1266 | static int ni_ao_fifo_half_empty(struct comedi_device *dev, struct comedi_subdevice *s) |
03aef4b6 DS |
1267 | { |
1268 | int n; | |
1269 | ||
1270 | n = comedi_buf_read_n_available(s->async); | |
1271 | if (n == 0) { | |
1272 | s->async->events |= COMEDI_CB_OVERFLOW; | |
1273 | return 0; | |
1274 | } | |
1275 | ||
790c5541 | 1276 | n /= sizeof(short); |
03aef4b6 DS |
1277 | if (n > boardtype.ao_fifo_depth / 2) |
1278 | n = boardtype.ao_fifo_depth / 2; | |
1279 | ||
1280 | ni_ao_fifo_load(dev, s, n); | |
1281 | ||
1282 | s->async->events |= COMEDI_CB_BLOCK; | |
1283 | ||
1284 | return 1; | |
1285 | } | |
1286 | ||
da91b269 | 1287 | static int ni_ao_prep_fifo(struct comedi_device *dev, struct comedi_subdevice *s) |
03aef4b6 DS |
1288 | { |
1289 | int n; | |
1290 | ||
1291 | /* reset fifo */ | |
1292 | devpriv->stc_writew(dev, 1, DAC_FIFO_Clear); | |
1293 | if (boardtype.reg_type & ni_reg_6xxx_mask) | |
1294 | ni_ao_win_outl(dev, 0x6, AO_FIFO_Offset_Load_611x); | |
1295 | ||
1296 | /* load some data */ | |
1297 | n = comedi_buf_read_n_available(s->async); | |
1298 | if (n == 0) | |
1299 | return 0; | |
1300 | ||
790c5541 | 1301 | n /= sizeof(short); |
03aef4b6 DS |
1302 | if (n > boardtype.ao_fifo_depth) |
1303 | n = boardtype.ao_fifo_depth; | |
1304 | ||
1305 | ni_ao_fifo_load(dev, s, n); | |
1306 | ||
1307 | return n; | |
1308 | } | |
1309 | ||
da91b269 | 1310 | static void ni_ai_fifo_read(struct comedi_device *dev, struct comedi_subdevice *s, int n) |
03aef4b6 | 1311 | { |
d163679c | 1312 | struct comedi_async *async = s->async; |
03aef4b6 DS |
1313 | int i; |
1314 | ||
1315 | if (boardtype.reg_type == ni_reg_611x) { | |
790c5541 | 1316 | short data[2]; |
03aef4b6 DS |
1317 | u32 dl; |
1318 | ||
1319 | for (i = 0; i < n / 2; i++) { | |
1320 | dl = ni_readl(ADC_FIFO_Data_611x); | |
1321 | /* This may get the hi/lo data in the wrong order */ | |
1322 | data[0] = (dl >> 16) & 0xffff; | |
1323 | data[1] = dl & 0xffff; | |
1324 | cfc_write_array_to_buffer(s, data, sizeof(data)); | |
1325 | } | |
1326 | /* Check if there's a single sample stuck in the FIFO */ | |
1327 | if (n % 2) { | |
1328 | dl = ni_readl(ADC_FIFO_Data_611x); | |
1329 | data[0] = dl & 0xffff; | |
1330 | cfc_write_to_buffer(s, data[0]); | |
1331 | } | |
1332 | } else if (boardtype.reg_type == ni_reg_6143) { | |
790c5541 | 1333 | short data[2]; |
03aef4b6 DS |
1334 | u32 dl; |
1335 | ||
2696fb57 | 1336 | /* This just reads the FIFO assuming the data is present, no checks on the FIFO status are performed */ |
03aef4b6 DS |
1337 | for (i = 0; i < n / 2; i++) { |
1338 | dl = ni_readl(AIFIFO_Data_6143); | |
1339 | ||
1340 | data[0] = (dl >> 16) & 0xffff; | |
1341 | data[1] = dl & 0xffff; | |
1342 | cfc_write_array_to_buffer(s, data, sizeof(data)); | |
1343 | } | |
1344 | if (n % 2) { | |
1345 | /* Assume there is a single sample stuck in the FIFO */ | |
2696fb57 | 1346 | ni_writel(0x01, AIFIFO_Control_6143); /* Get stranded sample into FIFO */ |
03aef4b6 DS |
1347 | dl = ni_readl(AIFIFO_Data_6143); |
1348 | data[0] = (dl >> 16) & 0xffff; | |
1349 | cfc_write_to_buffer(s, data[0]); | |
1350 | } | |
1351 | } else { | |
1352 | if (n > sizeof(devpriv->ai_fifo_buffer) / | |
1353 | sizeof(devpriv->ai_fifo_buffer[0])) { | |
1354 | comedi_error(dev, "bug! ai_fifo_buffer too small"); | |
1355 | async->events |= COMEDI_CB_ERROR; | |
1356 | return; | |
1357 | } | |
1358 | for (i = 0; i < n; i++) { | |
1359 | devpriv->ai_fifo_buffer[i] = | |
1360 | ni_readw(ADC_FIFO_Data_Register); | |
1361 | } | |
1362 | cfc_write_array_to_buffer(s, devpriv->ai_fifo_buffer, | |
1363 | n * sizeof(devpriv->ai_fifo_buffer[0])); | |
1364 | } | |
1365 | } | |
1366 | ||
da91b269 | 1367 | static void ni_handle_fifo_half_full(struct comedi_device *dev) |
03aef4b6 DS |
1368 | { |
1369 | int n; | |
34c43922 | 1370 | struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV; |
03aef4b6 DS |
1371 | |
1372 | n = boardtype.ai_fifo_depth / 2; | |
1373 | ||
1374 | ni_ai_fifo_read(dev, s, n); | |
1375 | } | |
1376 | #endif | |
1377 | ||
1378 | #ifdef PCIDMA | |
da91b269 | 1379 | static int ni_ai_drain_dma(struct comedi_device *dev) |
03aef4b6 DS |
1380 | { |
1381 | int i; | |
1382 | static const int timeout = 10000; | |
1383 | unsigned long flags; | |
1384 | int retval = 0; | |
1385 | ||
1386 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags); | |
1387 | if (devpriv->ai_mite_chan) { | |
1388 | for (i = 0; i < timeout; i++) { | |
1389 | if ((devpriv->stc_readw(dev, | |
1390 | AI_Status_1_Register) & | |
1391 | AI_FIFO_Empty_St) | |
1392 | && mite_bytes_in_transit(devpriv-> | |
1393 | ai_mite_chan) == 0) | |
1394 | break; | |
1395 | comedi_udelay(5); | |
1396 | } | |
1397 | if (i == timeout) { | |
1398 | rt_printk | |
1399 | ("ni_mio_common: wait for dma drain timed out\n"); | |
1400 | rt_printk | |
1401 | ("mite_bytes_in_transit=%i, AI_Status1_Register=0x%x\n", | |
1402 | mite_bytes_in_transit(devpriv->ai_mite_chan), | |
1403 | devpriv->stc_readw(dev, AI_Status_1_Register)); | |
1404 | retval = -1; | |
1405 | } | |
1406 | } | |
1407 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
1408 | ||
1409 | ni_sync_ai_dma(dev); | |
1410 | ||
1411 | return retval; | |
1412 | } | |
1413 | #endif | |
1414 | /* | |
1415 | Empties the AI fifo | |
1416 | */ | |
da91b269 | 1417 | static void ni_handle_fifo_dregs(struct comedi_device *dev) |
03aef4b6 | 1418 | { |
34c43922 | 1419 | struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV; |
790c5541 | 1420 | short data[2]; |
03aef4b6 DS |
1421 | u32 dl; |
1422 | short fifo_empty; | |
1423 | int i; | |
1424 | ||
1425 | if (boardtype.reg_type == ni_reg_611x) { | |
1426 | while ((devpriv->stc_readw(dev, | |
1427 | AI_Status_1_Register) & | |
1428 | AI_FIFO_Empty_St) == 0) { | |
1429 | dl = ni_readl(ADC_FIFO_Data_611x); | |
1430 | ||
1431 | /* This may get the hi/lo data in the wrong order */ | |
1432 | data[0] = (dl >> 16); | |
1433 | data[1] = (dl & 0xffff); | |
1434 | cfc_write_array_to_buffer(s, data, sizeof(data)); | |
1435 | } | |
1436 | } else if (boardtype.reg_type == ni_reg_6143) { | |
1437 | i = 0; | |
1438 | while (ni_readl(AIFIFO_Status_6143) & 0x04) { | |
1439 | dl = ni_readl(AIFIFO_Data_6143); | |
1440 | ||
1441 | /* This may get the hi/lo data in the wrong order */ | |
1442 | data[0] = (dl >> 16); | |
1443 | data[1] = (dl & 0xffff); | |
1444 | cfc_write_array_to_buffer(s, data, sizeof(data)); | |
1445 | i += 2; | |
1446 | } | |
2696fb57 | 1447 | /* Check if stranded sample is present */ |
03aef4b6 | 1448 | if (ni_readl(AIFIFO_Status_6143) & 0x01) { |
2696fb57 | 1449 | ni_writel(0x01, AIFIFO_Control_6143); /* Get stranded sample into FIFO */ |
03aef4b6 DS |
1450 | dl = ni_readl(AIFIFO_Data_6143); |
1451 | data[0] = (dl >> 16) & 0xffff; | |
1452 | cfc_write_to_buffer(s, data[0]); | |
1453 | } | |
1454 | ||
1455 | } else { | |
1456 | fifo_empty = | |
1457 | devpriv->stc_readw(dev, | |
1458 | AI_Status_1_Register) & AI_FIFO_Empty_St; | |
1459 | while (fifo_empty == 0) { | |
1460 | for (i = 0; | |
1461 | i < | |
1462 | sizeof(devpriv->ai_fifo_buffer) / | |
1463 | sizeof(devpriv->ai_fifo_buffer[0]); i++) { | |
1464 | fifo_empty = | |
1465 | devpriv->stc_readw(dev, | |
1466 | AI_Status_1_Register) & | |
1467 | AI_FIFO_Empty_St; | |
1468 | if (fifo_empty) | |
1469 | break; | |
1470 | devpriv->ai_fifo_buffer[i] = | |
1471 | ni_readw(ADC_FIFO_Data_Register); | |
1472 | } | |
1473 | cfc_write_array_to_buffer(s, devpriv->ai_fifo_buffer, | |
1474 | i * sizeof(devpriv->ai_fifo_buffer[0])); | |
1475 | } | |
1476 | } | |
1477 | } | |
1478 | ||
da91b269 | 1479 | static void get_last_sample_611x(struct comedi_device *dev) |
03aef4b6 | 1480 | { |
34c43922 | 1481 | struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV; |
790c5541 | 1482 | short data; |
03aef4b6 DS |
1483 | u32 dl; |
1484 | ||
1485 | if (boardtype.reg_type != ni_reg_611x) | |
1486 | return; | |
1487 | ||
1488 | /* Check if there's a single sample stuck in the FIFO */ | |
1489 | if (ni_readb(XXX_Status) & 0x80) { | |
1490 | dl = ni_readl(ADC_FIFO_Data_611x); | |
1491 | data = (dl & 0xffff); | |
1492 | cfc_write_to_buffer(s, data); | |
1493 | } | |
1494 | } | |
1495 | ||
da91b269 | 1496 | static void get_last_sample_6143(struct comedi_device *dev) |
03aef4b6 | 1497 | { |
34c43922 | 1498 | struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV; |
790c5541 | 1499 | short data; |
03aef4b6 DS |
1500 | u32 dl; |
1501 | ||
1502 | if (boardtype.reg_type != ni_reg_6143) | |
1503 | return; | |
1504 | ||
1505 | /* Check if there's a single sample stuck in the FIFO */ | |
1506 | if (ni_readl(AIFIFO_Status_6143) & 0x01) { | |
2696fb57 | 1507 | ni_writel(0x01, AIFIFO_Control_6143); /* Get stranded sample into FIFO */ |
03aef4b6 DS |
1508 | dl = ni_readl(AIFIFO_Data_6143); |
1509 | ||
1510 | /* This may get the hi/lo data in the wrong order */ | |
1511 | data = (dl >> 16) & 0xffff; | |
1512 | cfc_write_to_buffer(s, data); | |
1513 | } | |
1514 | } | |
1515 | ||
da91b269 | 1516 | static void ni_ai_munge(struct comedi_device *dev, struct comedi_subdevice *s, |
03aef4b6 DS |
1517 | void *data, unsigned int num_bytes, unsigned int chan_index) |
1518 | { | |
d163679c | 1519 | struct comedi_async *async = s->async; |
03aef4b6 DS |
1520 | unsigned int i; |
1521 | unsigned int length = num_bytes / bytes_per_sample(s); | |
790c5541 BP |
1522 | short *array = data; |
1523 | unsigned int *larray = data; | |
03aef4b6 DS |
1524 | for (i = 0; i < length; i++) { |
1525 | #ifdef PCIDMA | |
1526 | if (s->subdev_flags & SDF_LSAMPL) | |
1527 | larray[i] = le32_to_cpu(larray[i]); | |
1528 | else | |
1529 | array[i] = le16_to_cpu(array[i]); | |
1530 | #endif | |
1531 | if (s->subdev_flags & SDF_LSAMPL) | |
1532 | larray[i] += devpriv->ai_offset[chan_index]; | |
1533 | else | |
1534 | array[i] += devpriv->ai_offset[chan_index]; | |
1535 | chan_index++; | |
1536 | chan_index %= async->cmd.chanlist_len; | |
1537 | } | |
1538 | } | |
1539 | ||
1540 | #ifdef PCIDMA | |
1541 | ||
da91b269 | 1542 | static int ni_ai_setup_MITE_dma(struct comedi_device *dev) |
03aef4b6 | 1543 | { |
34c43922 | 1544 | struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV; |
03aef4b6 DS |
1545 | int retval; |
1546 | unsigned long flags; | |
1547 | ||
1548 | retval = ni_request_ai_mite_channel(dev); | |
1549 | if (retval) | |
1550 | return retval; | |
2696fb57 | 1551 | /* rt_printk("comedi_debug: using mite channel %i for ai.\n", devpriv->ai_mite_chan->channel); */ |
03aef4b6 DS |
1552 | |
1553 | /* write alloc the entire buffer */ | |
1554 | comedi_buf_write_alloc(s->async, s->async->prealloc_bufsz); | |
1555 | ||
1556 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags); | |
1557 | if(devpriv->ai_mite_chan == NULL) | |
1558 | { | |
1559 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
1560 | return -EIO; | |
1561 | } | |
1562 | ||
1563 | switch (boardtype.reg_type) { | |
1564 | case ni_reg_611x: | |
1565 | case ni_reg_6143: | |
1566 | mite_prep_dma(devpriv->ai_mite_chan, 32, 16); | |
1567 | break; | |
1568 | case ni_reg_628x: | |
1569 | mite_prep_dma(devpriv->ai_mite_chan, 32, 32); | |
1570 | break; | |
1571 | default: | |
1572 | mite_prep_dma(devpriv->ai_mite_chan, 16, 16); | |
1573 | break; | |
1574 | }; | |
1575 | /*start the MITE */ | |
1576 | mite_dma_arm(devpriv->ai_mite_chan); | |
1577 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
1578 | ||
1579 | return 0; | |
1580 | } | |
1581 | ||
da91b269 | 1582 | static int ni_ao_setup_MITE_dma(struct comedi_device *dev) |
03aef4b6 | 1583 | { |
34c43922 | 1584 | struct comedi_subdevice *s = dev->subdevices + NI_AO_SUBDEV; |
03aef4b6 DS |
1585 | int retval; |
1586 | unsigned long flags; | |
1587 | ||
1588 | retval = ni_request_ao_mite_channel(dev); | |
1589 | if (retval) | |
1590 | return retval; | |
1591 | ||
1592 | /* read alloc the entire buffer */ | |
1593 | comedi_buf_read_alloc(s->async, s->async->prealloc_bufsz); | |
1594 | ||
1595 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags); | |
1596 | if (devpriv->ao_mite_chan) { | |
1597 | if (boardtype.reg_type & (ni_reg_611x | ni_reg_6713)) { | |
1598 | mite_prep_dma(devpriv->ao_mite_chan, 32, 32); | |
1599 | } else { | |
1600 | /* doing 32 instead of 16 bit wide transfers from memory | |
1601 | makes the mite do 32 bit pci transfers, doubling pci bandwidth. */ | |
1602 | mite_prep_dma(devpriv->ao_mite_chan, 16, 32); | |
1603 | } | |
1604 | mite_dma_arm(devpriv->ao_mite_chan); | |
1605 | } else | |
1606 | retval = -EIO; | |
1607 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
1608 | ||
1609 | return retval; | |
1610 | } | |
1611 | ||
2696fb57 | 1612 | #endif /* PCIDMA */ |
03aef4b6 DS |
1613 | |
1614 | /* | |
1615 | used for both cancel ioctl and board initialization | |
1616 | ||
1617 | this is pretty harsh for a cancel, but it works... | |
1618 | */ | |
1619 | ||
da91b269 | 1620 | static int ni_ai_reset(struct comedi_device *dev, struct comedi_subdevice *s) |
03aef4b6 DS |
1621 | { |
1622 | ni_release_ai_mite_channel(dev); | |
1623 | /* ai configuration */ | |
1624 | devpriv->stc_writew(dev, AI_Configuration_Start | AI_Reset, | |
1625 | Joint_Reset_Register); | |
1626 | ||
1627 | ni_set_bits(dev, Interrupt_A_Enable_Register, | |
1628 | AI_SC_TC_Interrupt_Enable | AI_START1_Interrupt_Enable | | |
1629 | AI_START2_Interrupt_Enable | AI_START_Interrupt_Enable | | |
1630 | AI_STOP_Interrupt_Enable | AI_Error_Interrupt_Enable | | |
1631 | AI_FIFO_Interrupt_Enable, 0); | |
1632 | ||
1633 | ni_clear_ai_fifo(dev); | |
1634 | ||
1635 | if (boardtype.reg_type != ni_reg_6143) | |
1636 | ni_writeb(0, Misc_Command); | |
1637 | ||
1638 | devpriv->stc_writew(dev, AI_Disarm, AI_Command_1_Register); /* reset pulses */ | |
1639 | devpriv->stc_writew(dev, | |
1640 | AI_Start_Stop | AI_Mode_1_Reserved /*| AI_Trigger_Once */ , | |
1641 | AI_Mode_1_Register); | |
1642 | devpriv->stc_writew(dev, 0x0000, AI_Mode_2_Register); | |
1643 | /* generate FIFO interrupts on non-empty */ | |
1644 | devpriv->stc_writew(dev, (0 << 6) | 0x0000, AI_Mode_3_Register); | |
1645 | if (boardtype.reg_type == ni_reg_611x) { | |
1646 | devpriv->stc_writew(dev, AI_SHIFTIN_Pulse_Width | | |
1647 | AI_SOC_Polarity | | |
1648 | AI_LOCALMUX_CLK_Pulse_Width, AI_Personal_Register); | |
1649 | devpriv->stc_writew(dev, AI_SCAN_IN_PROG_Output_Select(3) | | |
1650 | AI_EXTMUX_CLK_Output_Select(0) | | |
1651 | AI_LOCALMUX_CLK_Output_Select(2) | | |
1652 | AI_SC_TC_Output_Select(3) | | |
1653 | AI_CONVERT_Output_Select(AI_CONVERT_Output_Enable_High), | |
1654 | AI_Output_Control_Register); | |
1655 | } else if (boardtype.reg_type == ni_reg_6143) { | |
1656 | devpriv->stc_writew(dev, AI_SHIFTIN_Pulse_Width | | |
1657 | AI_SOC_Polarity | | |
1658 | AI_LOCALMUX_CLK_Pulse_Width, AI_Personal_Register); | |
1659 | devpriv->stc_writew(dev, AI_SCAN_IN_PROG_Output_Select(3) | | |
1660 | AI_EXTMUX_CLK_Output_Select(0) | | |
1661 | AI_LOCALMUX_CLK_Output_Select(2) | | |
1662 | AI_SC_TC_Output_Select(3) | | |
1663 | AI_CONVERT_Output_Select(AI_CONVERT_Output_Enable_Low), | |
1664 | AI_Output_Control_Register); | |
1665 | } else { | |
1666 | unsigned ai_output_control_bits; | |
1667 | devpriv->stc_writew(dev, AI_SHIFTIN_Pulse_Width | | |
1668 | AI_SOC_Polarity | | |
1669 | AI_CONVERT_Pulse_Width | | |
1670 | AI_LOCALMUX_CLK_Pulse_Width, AI_Personal_Register); | |
1671 | ai_output_control_bits = AI_SCAN_IN_PROG_Output_Select(3) | | |
1672 | AI_EXTMUX_CLK_Output_Select(0) | | |
1673 | AI_LOCALMUX_CLK_Output_Select(2) | | |
1674 | AI_SC_TC_Output_Select(3); | |
1675 | if (boardtype.reg_type == ni_reg_622x) | |
1676 | ai_output_control_bits |= | |
1677 | AI_CONVERT_Output_Select | |
1678 | (AI_CONVERT_Output_Enable_High); | |
1679 | else | |
1680 | ai_output_control_bits |= | |
1681 | AI_CONVERT_Output_Select | |
1682 | (AI_CONVERT_Output_Enable_Low); | |
1683 | devpriv->stc_writew(dev, ai_output_control_bits, | |
1684 | AI_Output_Control_Register); | |
1685 | } | |
1686 | /* the following registers should not be changed, because there | |
1687 | * are no backup registers in devpriv. If you want to change | |
1688 | * any of these, add a backup register and other appropriate code: | |
1689 | * AI_Mode_1_Register | |
1690 | * AI_Mode_3_Register | |
1691 | * AI_Personal_Register | |
1692 | * AI_Output_Control_Register | |
1693 | */ | |
1694 | devpriv->stc_writew(dev, AI_SC_TC_Error_Confirm | AI_START_Interrupt_Ack | AI_START2_Interrupt_Ack | AI_START1_Interrupt_Ack | AI_SC_TC_Interrupt_Ack | AI_Error_Interrupt_Ack | AI_STOP_Interrupt_Ack, Interrupt_A_Ack_Register); /* clear interrupts */ | |
1695 | ||
1696 | devpriv->stc_writew(dev, AI_Configuration_End, Joint_Reset_Register); | |
1697 | ||
1698 | return 0; | |
1699 | } | |
1700 | ||
da91b269 | 1701 | static int ni_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s) |
03aef4b6 DS |
1702 | { |
1703 | unsigned long flags = 0; | |
1704 | int count; | |
1705 | ||
2696fb57 | 1706 | /* lock to avoid race with interrupt handler */ |
03aef4b6 DS |
1707 | if (in_interrupt() == 0) |
1708 | comedi_spin_lock_irqsave(&dev->spinlock, flags); | |
1709 | #ifndef PCIDMA | |
1710 | ni_handle_fifo_dregs(dev); | |
1711 | #else | |
1712 | ni_sync_ai_dma(dev); | |
1713 | #endif | |
1714 | count = s->async->buf_write_count - s->async->buf_read_count; | |
1715 | if (in_interrupt() == 0) | |
1716 | comedi_spin_unlock_irqrestore(&dev->spinlock, flags); | |
1717 | ||
1718 | return count; | |
1719 | } | |
1720 | ||
da91b269 BP |
1721 | static int ni_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, |
1722 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
1723 | { |
1724 | int i, n; | |
1725 | const unsigned int mask = (1 << boardtype.adbits) - 1; | |
1726 | unsigned signbits; | |
1727 | unsigned short d; | |
1728 | unsigned long dl; | |
1729 | ||
1730 | ni_load_channelgain_list(dev, 1, &insn->chanspec); | |
1731 | ||
1732 | ni_clear_ai_fifo(dev); | |
1733 | ||
1734 | signbits = devpriv->ai_offset[0]; | |
1735 | if (boardtype.reg_type == ni_reg_611x) { | |
1736 | for (n = 0; n < num_adc_stages_611x; n++) { | |
1737 | devpriv->stc_writew(dev, AI_CONVERT_Pulse, | |
1738 | AI_Command_1_Register); | |
1739 | comedi_udelay(1); | |
1740 | } | |
1741 | for (n = 0; n < insn->n; n++) { | |
1742 | devpriv->stc_writew(dev, AI_CONVERT_Pulse, | |
1743 | AI_Command_1_Register); | |
1744 | /* The 611x has screwy 32-bit FIFOs. */ | |
1745 | d = 0; | |
1746 | for (i = 0; i < NI_TIMEOUT; i++) { | |
1747 | if (ni_readb(XXX_Status) & 0x80) { | |
1748 | d = (ni_readl(ADC_FIFO_Data_611x) >> 16) | |
1749 | & 0xffff; | |
1750 | break; | |
1751 | } | |
1752 | if (!(devpriv->stc_readw(dev, | |
1753 | AI_Status_1_Register) & | |
1754 | AI_FIFO_Empty_St)) { | |
1755 | d = ni_readl(ADC_FIFO_Data_611x) & | |
1756 | 0xffff; | |
1757 | break; | |
1758 | } | |
1759 | } | |
1760 | if (i == NI_TIMEOUT) { | |
1761 | rt_printk | |
1762 | ("ni_mio_common: timeout in 611x ni_ai_insn_read\n"); | |
1763 | return -ETIME; | |
1764 | } | |
1765 | d += signbits; | |
1766 | data[n] = d; | |
1767 | } | |
1768 | } else if (boardtype.reg_type == ni_reg_6143) { | |
1769 | for (n = 0; n < insn->n; n++) { | |
1770 | devpriv->stc_writew(dev, AI_CONVERT_Pulse, | |
1771 | AI_Command_1_Register); | |
1772 | ||
1773 | /* The 6143 has 32-bit FIFOs. You need to strobe a bit to move a single 16bit stranded sample into the FIFO */ | |
1774 | dl = 0; | |
1775 | for (i = 0; i < NI_TIMEOUT; i++) { | |
1776 | if (ni_readl(AIFIFO_Status_6143) & 0x01) { | |
2696fb57 | 1777 | ni_writel(0x01, AIFIFO_Control_6143); /* Get stranded sample into FIFO */ |
03aef4b6 DS |
1778 | dl = ni_readl(AIFIFO_Data_6143); |
1779 | break; | |
1780 | } | |
1781 | } | |
1782 | if (i == NI_TIMEOUT) { | |
1783 | rt_printk | |
1784 | ("ni_mio_common: timeout in 6143 ni_ai_insn_read\n"); | |
1785 | return -ETIME; | |
1786 | } | |
1787 | data[n] = (((dl >> 16) & 0xFFFF) + signbits) & 0xFFFF; | |
1788 | } | |
1789 | } else { | |
1790 | for (n = 0; n < insn->n; n++) { | |
1791 | devpriv->stc_writew(dev, AI_CONVERT_Pulse, | |
1792 | AI_Command_1_Register); | |
1793 | for (i = 0; i < NI_TIMEOUT; i++) { | |
1794 | if (!(devpriv->stc_readw(dev, | |
1795 | AI_Status_1_Register) & | |
1796 | AI_FIFO_Empty_St)) | |
1797 | break; | |
1798 | } | |
1799 | if (i == NI_TIMEOUT) { | |
1800 | rt_printk | |
1801 | ("ni_mio_common: timeout in ni_ai_insn_read\n"); | |
1802 | return -ETIME; | |
1803 | } | |
1804 | if (boardtype.reg_type & ni_reg_m_series_mask) { | |
1805 | data[n] = | |
1806 | ni_readl(M_Offset_AI_FIFO_Data) & mask; | |
1807 | } else { | |
1808 | d = ni_readw(ADC_FIFO_Data_Register); | |
1809 | d += signbits; /* subtle: needs to be short addition */ | |
1810 | data[n] = d; | |
1811 | } | |
1812 | } | |
1813 | } | |
1814 | return insn->n; | |
1815 | } | |
1816 | ||
da91b269 | 1817 | void ni_prime_channelgain_list(struct comedi_device *dev) |
03aef4b6 DS |
1818 | { |
1819 | int i; | |
1820 | devpriv->stc_writew(dev, AI_CONVERT_Pulse, AI_Command_1_Register); | |
1821 | for (i = 0; i < NI_TIMEOUT; ++i) { | |
1822 | if (!(devpriv->stc_readw(dev, | |
1823 | AI_Status_1_Register) & | |
1824 | AI_FIFO_Empty_St)) { | |
1825 | devpriv->stc_writew(dev, 1, ADC_FIFO_Clear); | |
1826 | return; | |
1827 | } | |
1828 | comedi_udelay(1); | |
1829 | } | |
1830 | rt_printk("ni_mio_common: timeout loading channel/gain list\n"); | |
1831 | } | |
1832 | ||
da91b269 | 1833 | static void ni_m_series_load_channelgain_list(struct comedi_device *dev, |
03aef4b6 DS |
1834 | unsigned int n_chan, unsigned int *list) |
1835 | { | |
1836 | unsigned int chan, range, aref; | |
1837 | unsigned int i; | |
1838 | unsigned offset; | |
1839 | unsigned int dither; | |
1840 | unsigned range_code; | |
1841 | ||
1842 | devpriv->stc_writew(dev, 1, Configuration_Memory_Clear); | |
1843 | ||
2696fb57 | 1844 | /* offset = 1 << (boardtype.adbits - 1); */ |
03aef4b6 DS |
1845 | if ((list[0] & CR_ALT_SOURCE)) { |
1846 | unsigned bypass_bits; | |
1847 | chan = CR_CHAN(list[0]); | |
1848 | range = CR_RANGE(list[0]); | |
1849 | range_code = ni_gainlkup[boardtype.gainlkup][range]; | |
1850 | dither = ((list[0] & CR_ALT_FILTER) != 0); | |
1851 | bypass_bits = MSeries_AI_Bypass_Config_FIFO_Bit; | |
1852 | bypass_bits |= chan; | |
1853 | bypass_bits |= | |
1854 | (devpriv-> | |
1855 | ai_calib_source) & (MSeries_AI_Bypass_Cal_Sel_Pos_Mask | | |
1856 | MSeries_AI_Bypass_Cal_Sel_Neg_Mask | | |
1857 | MSeries_AI_Bypass_Mode_Mux_Mask | | |
1858 | MSeries_AO_Bypass_AO_Cal_Sel_Mask); | |
1859 | bypass_bits |= MSeries_AI_Bypass_Gain_Bits(range_code); | |
1860 | if (dither) | |
1861 | bypass_bits |= MSeries_AI_Bypass_Dither_Bit; | |
2696fb57 | 1862 | /* don't use 2's complement encoding */ |
03aef4b6 DS |
1863 | bypass_bits |= MSeries_AI_Bypass_Polarity_Bit; |
1864 | ni_writel(bypass_bits, M_Offset_AI_Config_FIFO_Bypass); | |
1865 | } else { | |
1866 | ni_writel(0, M_Offset_AI_Config_FIFO_Bypass); | |
1867 | } | |
1868 | offset = 0; | |
1869 | for (i = 0; i < n_chan; i++) { | |
1870 | unsigned config_bits = 0; | |
1871 | chan = CR_CHAN(list[i]); | |
1872 | aref = CR_AREF(list[i]); | |
1873 | range = CR_RANGE(list[i]); | |
1874 | dither = ((list[i] & CR_ALT_FILTER) != 0); | |
1875 | ||
1876 | range_code = ni_gainlkup[boardtype.gainlkup][range]; | |
1877 | devpriv->ai_offset[i] = offset; | |
1878 | switch (aref) { | |
1879 | case AREF_DIFF: | |
1880 | config_bits |= | |
1881 | MSeries_AI_Config_Channel_Type_Differential_Bits; | |
1882 | break; | |
1883 | case AREF_COMMON: | |
1884 | config_bits |= | |
1885 | MSeries_AI_Config_Channel_Type_Common_Ref_Bits; | |
1886 | break; | |
1887 | case AREF_GROUND: | |
1888 | config_bits |= | |
1889 | MSeries_AI_Config_Channel_Type_Ground_Ref_Bits; | |
1890 | break; | |
1891 | case AREF_OTHER: | |
1892 | break; | |
1893 | } | |
1894 | config_bits |= MSeries_AI_Config_Channel_Bits(chan); | |
1895 | config_bits |= | |
1896 | MSeries_AI_Config_Bank_Bits(boardtype.reg_type, chan); | |
1897 | config_bits |= MSeries_AI_Config_Gain_Bits(range_code); | |
1898 | if (i == n_chan - 1) | |
1899 | config_bits |= MSeries_AI_Config_Last_Channel_Bit; | |
1900 | if (dither) | |
1901 | config_bits |= MSeries_AI_Config_Dither_Bit; | |
2696fb57 | 1902 | /* don't use 2's complement encoding */ |
03aef4b6 DS |
1903 | config_bits |= MSeries_AI_Config_Polarity_Bit; |
1904 | ni_writew(config_bits, M_Offset_AI_Config_FIFO_Data); | |
1905 | } | |
1906 | ni_prime_channelgain_list(dev); | |
1907 | } | |
1908 | ||
1909 | /* | |
1910 | * Notes on the 6110 and 6111: | |
1911 | * These boards a slightly different than the rest of the series, since | |
1912 | * they have multiple A/D converters. | |
1913 | * From the driver side, the configuration memory is a | |
1914 | * little different. | |
1915 | * Configuration Memory Low: | |
1916 | * bits 15-9: same | |
1917 | * bit 8: unipolar/bipolar (should be 0 for bipolar) | |
1918 | * bits 0-3: gain. This is 4 bits instead of 3 for the other boards | |
1919 | * 1001 gain=0.1 (+/- 50) | |
1920 | * 1010 0.2 | |
1921 | * 1011 0.1 | |
1922 | * 0001 1 | |
1923 | * 0010 2 | |
1924 | * 0011 5 | |
1925 | * 0100 10 | |
1926 | * 0101 20 | |
1927 | * 0110 50 | |
1928 | * Configuration Memory High: | |
1929 | * bits 12-14: Channel Type | |
1930 | * 001 for differential | |
1931 | * 000 for calibration | |
1932 | * bit 11: coupling (this is not currently handled) | |
1933 | * 1 AC coupling | |
1934 | * 0 DC coupling | |
1935 | * bits 0-2: channel | |
1936 | * valid channels are 0-3 | |
1937 | */ | |
da91b269 | 1938 | static void ni_load_channelgain_list(struct comedi_device *dev, unsigned int n_chan, |
03aef4b6 DS |
1939 | unsigned int *list) |
1940 | { | |
1941 | unsigned int chan, range, aref; | |
1942 | unsigned int i; | |
1943 | unsigned int hi, lo; | |
1944 | unsigned offset; | |
1945 | unsigned int dither; | |
1946 | ||
1947 | if (boardtype.reg_type & ni_reg_m_series_mask) { | |
1948 | ni_m_series_load_channelgain_list(dev, n_chan, list); | |
1949 | return; | |
1950 | } | |
1951 | if (n_chan == 1 && (boardtype.reg_type != ni_reg_611x) | |
1952 | && (boardtype.reg_type != ni_reg_6143)) { | |
1953 | if (devpriv->changain_state | |
1954 | && devpriv->changain_spec == list[0]) { | |
2696fb57 | 1955 | /* ready to go. */ |
03aef4b6 DS |
1956 | return; |
1957 | } | |
1958 | devpriv->changain_state = 1; | |
1959 | devpriv->changain_spec = list[0]; | |
1960 | } else { | |
1961 | devpriv->changain_state = 0; | |
1962 | } | |
1963 | ||
1964 | devpriv->stc_writew(dev, 1, Configuration_Memory_Clear); | |
1965 | ||
2696fb57 | 1966 | /* Set up Calibration mode if required */ |
03aef4b6 DS |
1967 | if (boardtype.reg_type == ni_reg_6143) { |
1968 | if ((list[0] & CR_ALT_SOURCE) | |
1969 | && !devpriv->ai_calib_source_enabled) { | |
2696fb57 | 1970 | /* Strobe Relay enable bit */ |
03aef4b6 DS |
1971 | ni_writew(devpriv-> |
1972 | ai_calib_source | | |
1973 | Calibration_Channel_6143_RelayOn, | |
1974 | Calibration_Channel_6143); | |
1975 | ni_writew(devpriv->ai_calib_source, | |
1976 | Calibration_Channel_6143); | |
1977 | devpriv->ai_calib_source_enabled = 1; | |
2696fb57 | 1978 | msleep_interruptible(100); /* Allow relays to change */ |
03aef4b6 DS |
1979 | } else if (!(list[0] & CR_ALT_SOURCE) |
1980 | && devpriv->ai_calib_source_enabled) { | |
2696fb57 | 1981 | /* Strobe Relay disable bit */ |
03aef4b6 DS |
1982 | ni_writew(devpriv-> |
1983 | ai_calib_source | | |
1984 | Calibration_Channel_6143_RelayOff, | |
1985 | Calibration_Channel_6143); | |
1986 | ni_writew(devpriv->ai_calib_source, | |
1987 | Calibration_Channel_6143); | |
1988 | devpriv->ai_calib_source_enabled = 0; | |
2696fb57 | 1989 | msleep_interruptible(100); /* Allow relays to change */ |
03aef4b6 DS |
1990 | } |
1991 | } | |
1992 | ||
1993 | offset = 1 << (boardtype.adbits - 1); | |
1994 | for (i = 0; i < n_chan; i++) { | |
1995 | if ((boardtype.reg_type != ni_reg_6143) | |
1996 | && (list[i] & CR_ALT_SOURCE)) { | |
1997 | chan = devpriv->ai_calib_source; | |
1998 | } else { | |
1999 | chan = CR_CHAN(list[i]); | |
2000 | } | |
2001 | aref = CR_AREF(list[i]); | |
2002 | range = CR_RANGE(list[i]); | |
2003 | dither = ((list[i] & CR_ALT_FILTER) != 0); | |
2004 | ||
2005 | /* fix the external/internal range differences */ | |
2006 | range = ni_gainlkup[boardtype.gainlkup][range]; | |
2007 | if (boardtype.reg_type == ni_reg_611x) | |
2008 | devpriv->ai_offset[i] = offset; | |
2009 | else | |
2010 | devpriv->ai_offset[i] = (range & 0x100) ? 0 : offset; | |
2011 | ||
2012 | hi = 0; | |
2013 | if ((list[i] & CR_ALT_SOURCE)) { | |
2014 | if (boardtype.reg_type == ni_reg_611x) | |
2015 | ni_writew(CR_CHAN(list[i]) & 0x0003, | |
2016 | Calibration_Channel_Select_611x); | |
2017 | } else { | |
2018 | if (boardtype.reg_type == ni_reg_611x) | |
2019 | aref = AREF_DIFF; | |
2020 | else if (boardtype.reg_type == ni_reg_6143) | |
2021 | aref = AREF_OTHER; | |
2022 | switch (aref) { | |
2023 | case AREF_DIFF: | |
2024 | hi |= AI_DIFFERENTIAL; | |
2025 | break; | |
2026 | case AREF_COMMON: | |
2027 | hi |= AI_COMMON; | |
2028 | break; | |
2029 | case AREF_GROUND: | |
2030 | hi |= AI_GROUND; | |
2031 | break; | |
2032 | case AREF_OTHER: | |
2033 | break; | |
2034 | } | |
2035 | } | |
2036 | hi |= AI_CONFIG_CHANNEL(chan); | |
2037 | ||
2038 | ni_writew(hi, Configuration_Memory_High); | |
2039 | ||
2040 | if (boardtype.reg_type != ni_reg_6143) { | |
2041 | lo = range; | |
2042 | if (i == n_chan - 1) | |
2043 | lo |= AI_LAST_CHANNEL; | |
2044 | if (dither) | |
2045 | lo |= AI_DITHER; | |
2046 | ||
2047 | ni_writew(lo, Configuration_Memory_Low); | |
2048 | } | |
2049 | } | |
2050 | ||
2051 | /* prime the channel/gain list */ | |
2052 | if ((boardtype.reg_type != ni_reg_611x) | |
2053 | && (boardtype.reg_type != ni_reg_6143)) { | |
2054 | ni_prime_channelgain_list(dev); | |
2055 | } | |
2056 | } | |
2057 | ||
da91b269 | 2058 | static int ni_ns_to_timer(const struct comedi_device *dev, unsigned nanosec, |
03aef4b6 DS |
2059 | int round_mode) |
2060 | { | |
2061 | int divider; | |
2062 | switch (round_mode) { | |
2063 | case TRIG_ROUND_NEAREST: | |
2064 | default: | |
2065 | divider = (nanosec + devpriv->clock_ns / 2) / devpriv->clock_ns; | |
2066 | break; | |
2067 | case TRIG_ROUND_DOWN: | |
2068 | divider = (nanosec) / devpriv->clock_ns; | |
2069 | break; | |
2070 | case TRIG_ROUND_UP: | |
2071 | divider = (nanosec + devpriv->clock_ns - 1) / devpriv->clock_ns; | |
2072 | break; | |
2073 | } | |
2074 | return divider - 1; | |
2075 | } | |
2076 | ||
da91b269 | 2077 | static unsigned ni_timer_to_ns(const struct comedi_device *dev, int timer) |
03aef4b6 DS |
2078 | { |
2079 | return devpriv->clock_ns * (timer + 1); | |
2080 | } | |
2081 | ||
da91b269 | 2082 | static unsigned ni_min_ai_scan_period_ns(struct comedi_device *dev, |
03aef4b6 DS |
2083 | unsigned num_channels) |
2084 | { | |
2085 | switch (boardtype.reg_type) { | |
2086 | case ni_reg_611x: | |
2087 | case ni_reg_6143: | |
2696fb57 | 2088 | /* simultaneously-sampled inputs */ |
03aef4b6 DS |
2089 | return boardtype.ai_speed; |
2090 | break; | |
2091 | default: | |
2696fb57 | 2092 | /* multiplexed inputs */ |
03aef4b6 DS |
2093 | break; |
2094 | }; | |
2095 | return boardtype.ai_speed * num_channels; | |
2096 | } | |
2097 | ||
da91b269 BP |
2098 | static int ni_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, |
2099 | struct comedi_cmd *cmd) | |
03aef4b6 DS |
2100 | { |
2101 | int err = 0; | |
2102 | int tmp; | |
2103 | int sources; | |
2104 | ||
2105 | /* step 1: make sure trigger sources are trivially valid */ | |
2106 | ||
2107 | if ((cmd->flags & CMDF_WRITE)) { | |
2108 | cmd->flags &= ~CMDF_WRITE; | |
2109 | } | |
2110 | ||
2111 | tmp = cmd->start_src; | |
2112 | cmd->start_src &= TRIG_NOW | TRIG_INT | TRIG_EXT; | |
2113 | if (!cmd->start_src || tmp != cmd->start_src) | |
2114 | err++; | |
2115 | ||
2116 | tmp = cmd->scan_begin_src; | |
2117 | cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT; | |
2118 | if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) | |
2119 | err++; | |
2120 | ||
2121 | tmp = cmd->convert_src; | |
2122 | sources = TRIG_TIMER | TRIG_EXT; | |
2123 | if ((boardtype.reg_type == ni_reg_611x) | |
2124 | || (boardtype.reg_type == ni_reg_6143)) | |
2125 | sources |= TRIG_NOW; | |
2126 | cmd->convert_src &= sources; | |
2127 | if (!cmd->convert_src || tmp != cmd->convert_src) | |
2128 | err++; | |
2129 | ||
2130 | tmp = cmd->scan_end_src; | |
2131 | cmd->scan_end_src &= TRIG_COUNT; | |
2132 | if (!cmd->scan_end_src || tmp != cmd->scan_end_src) | |
2133 | err++; | |
2134 | ||
2135 | tmp = cmd->stop_src; | |
2136 | cmd->stop_src &= TRIG_COUNT | TRIG_NONE; | |
2137 | if (!cmd->stop_src || tmp != cmd->stop_src) | |
2138 | err++; | |
2139 | ||
2140 | if (err) | |
2141 | return 1; | |
2142 | ||
2143 | /* step 2: make sure trigger sources are unique and mutually compatible */ | |
2144 | ||
2145 | /* note that mutual compatiblity is not an issue here */ | |
2146 | if (cmd->start_src != TRIG_NOW && | |
2147 | cmd->start_src != TRIG_INT && cmd->start_src != TRIG_EXT) | |
2148 | err++; | |
2149 | if (cmd->scan_begin_src != TRIG_TIMER && | |
2150 | cmd->scan_begin_src != TRIG_EXT && | |
2151 | cmd->scan_begin_src != TRIG_OTHER) | |
2152 | err++; | |
2153 | if (cmd->convert_src != TRIG_TIMER && | |
2154 | cmd->convert_src != TRIG_EXT && cmd->convert_src != TRIG_NOW) | |
2155 | err++; | |
2156 | if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE) | |
2157 | err++; | |
2158 | ||
2159 | if (err) | |
2160 | return 2; | |
2161 | ||
2162 | /* step 3: make sure arguments are trivially compatible */ | |
2163 | ||
2164 | if (cmd->start_src == TRIG_EXT) { | |
2165 | /* external trigger */ | |
2166 | unsigned int tmp = CR_CHAN(cmd->start_arg); | |
2167 | ||
2168 | if (tmp > 16) | |
2169 | tmp = 16; | |
2170 | tmp |= (cmd->start_arg & (CR_INVERT | CR_EDGE)); | |
2171 | if (cmd->start_arg != tmp) { | |
2172 | cmd->start_arg = tmp; | |
2173 | err++; | |
2174 | } | |
2175 | } else { | |
2176 | if (cmd->start_arg != 0) { | |
2177 | /* true for both TRIG_NOW and TRIG_INT */ | |
2178 | cmd->start_arg = 0; | |
2179 | err++; | |
2180 | } | |
2181 | } | |
2182 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
2183 | if (cmd->scan_begin_arg < ni_min_ai_scan_period_ns(dev, | |
2184 | cmd->chanlist_len)) { | |
2185 | cmd->scan_begin_arg = | |
2186 | ni_min_ai_scan_period_ns(dev, | |
2187 | cmd->chanlist_len); | |
2188 | err++; | |
2189 | } | |
2190 | if (cmd->scan_begin_arg > devpriv->clock_ns * 0xffffff) { | |
2191 | cmd->scan_begin_arg = devpriv->clock_ns * 0xffffff; | |
2192 | err++; | |
2193 | } | |
2194 | } else if (cmd->scan_begin_src == TRIG_EXT) { | |
2195 | /* external trigger */ | |
2196 | unsigned int tmp = CR_CHAN(cmd->scan_begin_arg); | |
2197 | ||
2198 | if (tmp > 16) | |
2199 | tmp = 16; | |
2200 | tmp |= (cmd->scan_begin_arg & (CR_INVERT | CR_EDGE)); | |
2201 | if (cmd->scan_begin_arg != tmp) { | |
2202 | cmd->scan_begin_arg = tmp; | |
2203 | err++; | |
2204 | } | |
2205 | } else { /* TRIG_OTHER */ | |
2206 | if (cmd->scan_begin_arg) { | |
2207 | cmd->scan_begin_arg = 0; | |
2208 | err++; | |
2209 | } | |
2210 | } | |
2211 | if (cmd->convert_src == TRIG_TIMER) { | |
2212 | if ((boardtype.reg_type == ni_reg_611x) | |
2213 | || (boardtype.reg_type == ni_reg_6143)) { | |
2214 | if (cmd->convert_arg != 0) { | |
2215 | cmd->convert_arg = 0; | |
2216 | err++; | |
2217 | } | |
2218 | } else { | |
2219 | if (cmd->convert_arg < boardtype.ai_speed) { | |
2220 | cmd->convert_arg = boardtype.ai_speed; | |
2221 | err++; | |
2222 | } | |
2223 | if (cmd->convert_arg > devpriv->clock_ns * 0xffff) { | |
2224 | cmd->convert_arg = devpriv->clock_ns * 0xffff; | |
2225 | err++; | |
2226 | } | |
2227 | } | |
2228 | } else if (cmd->convert_src == TRIG_EXT) { | |
2229 | /* external trigger */ | |
2230 | unsigned int tmp = CR_CHAN(cmd->convert_arg); | |
2231 | ||
2232 | if (tmp > 16) | |
2233 | tmp = 16; | |
2234 | tmp |= (cmd->convert_arg & (CR_ALT_FILTER | CR_INVERT)); | |
2235 | if (cmd->convert_arg != tmp) { | |
2236 | cmd->convert_arg = tmp; | |
2237 | err++; | |
2238 | } | |
2239 | } else if (cmd->convert_src == TRIG_NOW) { | |
2240 | if (cmd->convert_arg != 0) { | |
2241 | cmd->convert_arg = 0; | |
2242 | err++; | |
2243 | } | |
2244 | } | |
2245 | ||
2246 | if (cmd->scan_end_arg != cmd->chanlist_len) { | |
2247 | cmd->scan_end_arg = cmd->chanlist_len; | |
2248 | err++; | |
2249 | } | |
2250 | if (cmd->stop_src == TRIG_COUNT) { | |
2251 | unsigned int max_count = 0x01000000; | |
2252 | ||
2253 | if (boardtype.reg_type == ni_reg_611x) | |
2254 | max_count -= num_adc_stages_611x; | |
2255 | if (cmd->stop_arg > max_count) { | |
2256 | cmd->stop_arg = max_count; | |
2257 | err++; | |
2258 | } | |
2259 | if (cmd->stop_arg < 1) { | |
2260 | cmd->stop_arg = 1; | |
2261 | err++; | |
2262 | } | |
2263 | } else { | |
2264 | /* TRIG_NONE */ | |
2265 | if (cmd->stop_arg != 0) { | |
2266 | cmd->stop_arg = 0; | |
2267 | err++; | |
2268 | } | |
2269 | } | |
2270 | ||
2271 | if (err) | |
2272 | return 3; | |
2273 | ||
2274 | /* step 4: fix up any arguments */ | |
2275 | ||
2276 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
2277 | tmp = cmd->scan_begin_arg; | |
2278 | cmd->scan_begin_arg = | |
2279 | ni_timer_to_ns(dev, ni_ns_to_timer(dev, | |
2280 | cmd->scan_begin_arg, | |
2281 | cmd->flags & TRIG_ROUND_MASK)); | |
2282 | if (tmp != cmd->scan_begin_arg) | |
2283 | err++; | |
2284 | } | |
2285 | if (cmd->convert_src == TRIG_TIMER) { | |
2286 | if ((boardtype.reg_type != ni_reg_611x) | |
2287 | && (boardtype.reg_type != ni_reg_6143)) { | |
2288 | tmp = cmd->convert_arg; | |
2289 | cmd->convert_arg = | |
2290 | ni_timer_to_ns(dev, ni_ns_to_timer(dev, | |
2291 | cmd->convert_arg, | |
2292 | cmd->flags & TRIG_ROUND_MASK)); | |
2293 | if (tmp != cmd->convert_arg) | |
2294 | err++; | |
2295 | if (cmd->scan_begin_src == TRIG_TIMER && | |
2296 | cmd->scan_begin_arg < | |
2297 | cmd->convert_arg * cmd->scan_end_arg) { | |
2298 | cmd->scan_begin_arg = | |
2299 | cmd->convert_arg * cmd->scan_end_arg; | |
2300 | err++; | |
2301 | } | |
2302 | } | |
2303 | } | |
2304 | ||
2305 | if (err) | |
2306 | return 4; | |
2307 | ||
2308 | return 0; | |
2309 | } | |
2310 | ||
da91b269 | 2311 | static int ni_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
03aef4b6 | 2312 | { |
ea6d0d4c | 2313 | const struct comedi_cmd *cmd = &s->async->cmd; |
03aef4b6 DS |
2314 | int timer; |
2315 | int mode1 = 0; /* mode1 is needed for both stop and convert */ | |
2316 | int mode2 = 0; | |
2317 | int start_stop_select = 0; | |
2318 | unsigned int stop_count; | |
2319 | int interrupt_a_enable = 0; | |
2320 | ||
2321 | MDPRINTK("ni_ai_cmd\n"); | |
2322 | if (dev->irq == 0) { | |
2323 | comedi_error(dev, "cannot run command without an irq"); | |
2324 | return -EIO; | |
2325 | } | |
2326 | ni_clear_ai_fifo(dev); | |
2327 | ||
2328 | ni_load_channelgain_list(dev, cmd->chanlist_len, cmd->chanlist); | |
2329 | ||
2330 | /* start configuration */ | |
2331 | devpriv->stc_writew(dev, AI_Configuration_Start, Joint_Reset_Register); | |
2332 | ||
2333 | /* disable analog triggering for now, since it | |
2334 | * interferes with the use of pfi0 */ | |
2335 | devpriv->an_trig_etc_reg &= ~Analog_Trigger_Enable; | |
2336 | devpriv->stc_writew(dev, devpriv->an_trig_etc_reg, | |
2337 | Analog_Trigger_Etc_Register); | |
2338 | ||
2339 | switch (cmd->start_src) { | |
2340 | case TRIG_INT: | |
2341 | case TRIG_NOW: | |
2342 | devpriv->stc_writew(dev, AI_START2_Select(0) | | |
2343 | AI_START1_Sync | AI_START1_Edge | AI_START1_Select(0), | |
2344 | AI_Trigger_Select_Register); | |
2345 | break; | |
2346 | case TRIG_EXT: | |
2347 | { | |
2348 | int chan = CR_CHAN(cmd->start_arg); | |
2349 | unsigned int bits = AI_START2_Select(0) | | |
2350 | AI_START1_Sync | AI_START1_Select(chan + 1); | |
2351 | ||
2352 | if (cmd->start_arg & CR_INVERT) | |
2353 | bits |= AI_START1_Polarity; | |
2354 | if (cmd->start_arg & CR_EDGE) | |
2355 | bits |= AI_START1_Edge; | |
2356 | devpriv->stc_writew(dev, bits, | |
2357 | AI_Trigger_Select_Register); | |
2358 | break; | |
2359 | } | |
2360 | } | |
2361 | ||
2362 | mode2 &= ~AI_Pre_Trigger; | |
2363 | mode2 &= ~AI_SC_Initial_Load_Source; | |
2364 | mode2 &= ~AI_SC_Reload_Mode; | |
2365 | devpriv->stc_writew(dev, mode2, AI_Mode_2_Register); | |
2366 | ||
2367 | if (cmd->chanlist_len == 1 || (boardtype.reg_type == ni_reg_611x) | |
2368 | || (boardtype.reg_type == ni_reg_6143)) { | |
2369 | start_stop_select |= AI_STOP_Polarity; | |
2696fb57 | 2370 | start_stop_select |= AI_STOP_Select(31); /* logic low */ |
03aef4b6 DS |
2371 | start_stop_select |= AI_STOP_Sync; |
2372 | } else { | |
2696fb57 | 2373 | start_stop_select |= AI_STOP_Select(19); /* ai configuration memory */ |
03aef4b6 DS |
2374 | } |
2375 | devpriv->stc_writew(dev, start_stop_select, | |
2376 | AI_START_STOP_Select_Register); | |
2377 | ||
2378 | devpriv->ai_cmd2 = 0; | |
2379 | switch (cmd->stop_src) { | |
2380 | case TRIG_COUNT: | |
2381 | stop_count = cmd->stop_arg - 1; | |
2382 | ||
2383 | if (boardtype.reg_type == ni_reg_611x) { | |
2696fb57 | 2384 | /* have to take 3 stage adc pipeline into account */ |
03aef4b6 DS |
2385 | stop_count += num_adc_stages_611x; |
2386 | } | |
2387 | /* stage number of scans */ | |
2388 | devpriv->stc_writel(dev, stop_count, AI_SC_Load_A_Registers); | |
2389 | ||
2390 | mode1 |= AI_Start_Stop | AI_Mode_1_Reserved | AI_Trigger_Once; | |
2391 | devpriv->stc_writew(dev, mode1, AI_Mode_1_Register); | |
2392 | /* load SC (Scan Count) */ | |
2393 | devpriv->stc_writew(dev, AI_SC_Load, AI_Command_1_Register); | |
2394 | ||
2395 | devpriv->ai_continuous = 0; | |
2396 | if (stop_count == 0) { | |
2397 | devpriv->ai_cmd2 |= AI_End_On_End_Of_Scan; | |
2398 | interrupt_a_enable |= AI_STOP_Interrupt_Enable; | |
2696fb57 | 2399 | /* this is required to get the last sample for chanlist_len > 1, not sure why */ |
03aef4b6 DS |
2400 | if (cmd->chanlist_len > 1) |
2401 | start_stop_select |= | |
2402 | AI_STOP_Polarity | AI_STOP_Edge; | |
2403 | } | |
2404 | break; | |
2405 | case TRIG_NONE: | |
2406 | /* stage number of scans */ | |
2407 | devpriv->stc_writel(dev, 0, AI_SC_Load_A_Registers); | |
2408 | ||
2409 | mode1 |= AI_Start_Stop | AI_Mode_1_Reserved | AI_Continuous; | |
2410 | devpriv->stc_writew(dev, mode1, AI_Mode_1_Register); | |
2411 | ||
2412 | /* load SC (Scan Count) */ | |
2413 | devpriv->stc_writew(dev, AI_SC_Load, AI_Command_1_Register); | |
2414 | ||
2415 | devpriv->ai_continuous = 1; | |
2416 | ||
2417 | break; | |
2418 | } | |
2419 | ||
2420 | switch (cmd->scan_begin_src) { | |
2421 | case TRIG_TIMER: | |
2422 | /* | |
2423 | stop bits for non 611x boards | |
2424 | AI_SI_Special_Trigger_Delay=0 | |
2425 | AI_Pre_Trigger=0 | |
2426 | AI_START_STOP_Select_Register: | |
2427 | AI_START_Polarity=0 (?) rising edge | |
2428 | AI_START_Edge=1 edge triggered | |
2429 | AI_START_Sync=1 (?) | |
2430 | AI_START_Select=0 SI_TC | |
2431 | AI_STOP_Polarity=0 rising edge | |
2432 | AI_STOP_Edge=0 level | |
2433 | AI_STOP_Sync=1 | |
2434 | AI_STOP_Select=19 external pin (configuration mem) | |
2435 | */ | |
2436 | start_stop_select |= AI_START_Edge | AI_START_Sync; | |
2437 | devpriv->stc_writew(dev, start_stop_select, | |
2438 | AI_START_STOP_Select_Register); | |
2439 | ||
2440 | mode2 |= AI_SI_Reload_Mode(0); | |
2441 | /* AI_SI_Initial_Load_Source=A */ | |
2442 | mode2 &= ~AI_SI_Initial_Load_Source; | |
2696fb57 | 2443 | /* mode2 |= AI_SC_Reload_Mode; */ |
03aef4b6 DS |
2444 | devpriv->stc_writew(dev, mode2, AI_Mode_2_Register); |
2445 | ||
2446 | /* load SI */ | |
2447 | timer = ni_ns_to_timer(dev, cmd->scan_begin_arg, | |
2448 | TRIG_ROUND_NEAREST); | |
2449 | devpriv->stc_writel(dev, timer, AI_SI_Load_A_Registers); | |
2450 | devpriv->stc_writew(dev, AI_SI_Load, AI_Command_1_Register); | |
2451 | break; | |
2452 | case TRIG_EXT: | |
2453 | if (cmd->scan_begin_arg & CR_EDGE) | |
2454 | start_stop_select |= AI_START_Edge; | |
2455 | /* AI_START_Polarity==1 is falling edge */ | |
2456 | if (cmd->scan_begin_arg & CR_INVERT) | |
2457 | start_stop_select |= AI_START_Polarity; | |
2458 | if (cmd->scan_begin_src != cmd->convert_src || | |
2459 | (cmd->scan_begin_arg & ~CR_EDGE) != | |
2460 | (cmd->convert_arg & ~CR_EDGE)) | |
2461 | start_stop_select |= AI_START_Sync; | |
2462 | start_stop_select |= | |
2463 | AI_START_Select(1 + CR_CHAN(cmd->scan_begin_arg)); | |
2464 | devpriv->stc_writew(dev, start_stop_select, | |
2465 | AI_START_STOP_Select_Register); | |
2466 | break; | |
2467 | } | |
2468 | ||
2469 | switch (cmd->convert_src) { | |
2470 | case TRIG_TIMER: | |
2471 | case TRIG_NOW: | |
2472 | if (cmd->convert_arg == 0 || cmd->convert_src == TRIG_NOW) | |
2473 | timer = 1; | |
2474 | else | |
2475 | timer = ni_ns_to_timer(dev, cmd->convert_arg, | |
2476 | TRIG_ROUND_NEAREST); | |
2477 | devpriv->stc_writew(dev, 1, AI_SI2_Load_A_Register); /* 0,0 does not work. */ | |
2478 | devpriv->stc_writew(dev, timer, AI_SI2_Load_B_Register); | |
2479 | ||
2480 | /* AI_SI2_Reload_Mode = alternate */ | |
2481 | /* AI_SI2_Initial_Load_Source = A */ | |
2482 | mode2 &= ~AI_SI2_Initial_Load_Source; | |
2483 | mode2 |= AI_SI2_Reload_Mode; | |
2484 | devpriv->stc_writew(dev, mode2, AI_Mode_2_Register); | |
2485 | ||
2486 | /* AI_SI2_Load */ | |
2487 | devpriv->stc_writew(dev, AI_SI2_Load, AI_Command_1_Register); | |
2488 | ||
2696fb57 BP |
2489 | mode2 |= AI_SI2_Reload_Mode; /* alternate */ |
2490 | mode2 |= AI_SI2_Initial_Load_Source; /* B */ | |
03aef4b6 DS |
2491 | |
2492 | devpriv->stc_writew(dev, mode2, AI_Mode_2_Register); | |
2493 | break; | |
2494 | case TRIG_EXT: | |
2495 | mode1 |= AI_CONVERT_Source_Select(1 + cmd->convert_arg); | |
2496 | if ((cmd->convert_arg & CR_INVERT) == 0) | |
2497 | mode1 |= AI_CONVERT_Source_Polarity; | |
2498 | devpriv->stc_writew(dev, mode1, AI_Mode_1_Register); | |
2499 | ||
2500 | mode2 |= AI_Start_Stop_Gate_Enable | AI_SC_Gate_Enable; | |
2501 | devpriv->stc_writew(dev, mode2, AI_Mode_2_Register); | |
2502 | ||
2503 | break; | |
2504 | } | |
2505 | ||
2506 | if (dev->irq) { | |
2507 | ||
2508 | /* interrupt on FIFO, errors, SC_TC */ | |
2509 | interrupt_a_enable |= AI_Error_Interrupt_Enable | | |
2510 | AI_SC_TC_Interrupt_Enable; | |
2511 | ||
2512 | #ifndef PCIDMA | |
2513 | interrupt_a_enable |= AI_FIFO_Interrupt_Enable; | |
2514 | #endif | |
2515 | ||
2516 | if (cmd->flags & TRIG_WAKE_EOS | |
2517 | || (devpriv->ai_cmd2 & AI_End_On_End_Of_Scan)) { | |
2518 | /* wake on end-of-scan */ | |
2519 | devpriv->aimode = AIMODE_SCAN; | |
2520 | } else { | |
2521 | devpriv->aimode = AIMODE_HALF_FULL; | |
2522 | } | |
2523 | ||
2524 | switch (devpriv->aimode) { | |
2525 | case AIMODE_HALF_FULL: | |
2526 | /*generate FIFO interrupts and DMA requests on half-full */ | |
2527 | #ifdef PCIDMA | |
2528 | devpriv->stc_writew(dev, AI_FIFO_Mode_HF_to_E, | |
2529 | AI_Mode_3_Register); | |
2530 | #else | |
2531 | devpriv->stc_writew(dev, AI_FIFO_Mode_HF, | |
2532 | AI_Mode_3_Register); | |
2533 | #endif | |
2534 | break; | |
2535 | case AIMODE_SAMPLE: | |
2536 | /*generate FIFO interrupts on non-empty */ | |
2537 | devpriv->stc_writew(dev, AI_FIFO_Mode_NE, | |
2538 | AI_Mode_3_Register); | |
2539 | break; | |
2540 | case AIMODE_SCAN: | |
2541 | #ifdef PCIDMA | |
2542 | devpriv->stc_writew(dev, AI_FIFO_Mode_NE, | |
2543 | AI_Mode_3_Register); | |
2544 | #else | |
2545 | devpriv->stc_writew(dev, AI_FIFO_Mode_HF, | |
2546 | AI_Mode_3_Register); | |
2547 | #endif | |
2548 | interrupt_a_enable |= AI_STOP_Interrupt_Enable; | |
2549 | break; | |
2550 | default: | |
2551 | break; | |
2552 | } | |
2553 | ||
2554 | devpriv->stc_writew(dev, AI_Error_Interrupt_Ack | AI_STOP_Interrupt_Ack | AI_START_Interrupt_Ack | AI_START2_Interrupt_Ack | AI_START1_Interrupt_Ack | AI_SC_TC_Interrupt_Ack | AI_SC_TC_Error_Confirm, Interrupt_A_Ack_Register); /* clear interrupts */ | |
2555 | ||
2556 | ni_set_bits(dev, Interrupt_A_Enable_Register, | |
2557 | interrupt_a_enable, 1); | |
2558 | ||
2559 | MDPRINTK("Interrupt_A_Enable_Register = 0x%04x\n", | |
2560 | devpriv->int_a_enable_reg); | |
2561 | } else { | |
2562 | /* interrupt on nothing */ | |
2563 | ni_set_bits(dev, Interrupt_A_Enable_Register, ~0, 0); | |
2564 | ||
2565 | /* XXX start polling if necessary */ | |
2566 | MDPRINTK("interrupting on nothing\n"); | |
2567 | } | |
2568 | ||
2569 | /* end configuration */ | |
2570 | devpriv->stc_writew(dev, AI_Configuration_End, Joint_Reset_Register); | |
2571 | ||
2572 | switch (cmd->scan_begin_src) { | |
2573 | case TRIG_TIMER: | |
2574 | devpriv->stc_writew(dev, | |
2575 | AI_SI2_Arm | AI_SI_Arm | AI_DIV_Arm | AI_SC_Arm, | |
2576 | AI_Command_1_Register); | |
2577 | break; | |
2578 | case TRIG_EXT: | |
2579 | /* XXX AI_SI_Arm? */ | |
2580 | devpriv->stc_writew(dev, | |
2581 | AI_SI2_Arm | AI_SI_Arm | AI_DIV_Arm | AI_SC_Arm, | |
2582 | AI_Command_1_Register); | |
2583 | break; | |
2584 | } | |
2585 | ||
2586 | #ifdef PCIDMA | |
2587 | { | |
2588 | int retval = ni_ai_setup_MITE_dma(dev); | |
2589 | if (retval) | |
2590 | return retval; | |
2591 | } | |
2696fb57 | 2592 | /* mite_dump_regs(devpriv->mite); */ |
03aef4b6 DS |
2593 | #endif |
2594 | ||
2595 | switch (cmd->start_src) { | |
2596 | case TRIG_NOW: | |
2597 | /* AI_START1_Pulse */ | |
2598 | devpriv->stc_writew(dev, AI_START1_Pulse | devpriv->ai_cmd2, | |
2599 | AI_Command_2_Register); | |
2600 | s->async->inttrig = NULL; | |
2601 | break; | |
2602 | case TRIG_EXT: | |
2603 | s->async->inttrig = NULL; | |
2604 | break; | |
2605 | case TRIG_INT: | |
2606 | s->async->inttrig = &ni_ai_inttrig; | |
2607 | break; | |
2608 | } | |
2609 | ||
2610 | MDPRINTK("exit ni_ai_cmd\n"); | |
2611 | ||
2612 | return 0; | |
2613 | } | |
2614 | ||
da91b269 | 2615 | static int ni_ai_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, |
03aef4b6 DS |
2616 | unsigned int trignum) |
2617 | { | |
2618 | if (trignum != 0) | |
2619 | return -EINVAL; | |
2620 | ||
2621 | devpriv->stc_writew(dev, AI_START1_Pulse | devpriv->ai_cmd2, | |
2622 | AI_Command_2_Register); | |
2623 | s->async->inttrig = NULL; | |
2624 | ||
2625 | return 1; | |
2626 | } | |
2627 | ||
da91b269 BP |
2628 | static int ni_ai_config_analog_trig(struct comedi_device *dev, struct comedi_subdevice *s, |
2629 | struct comedi_insn *insn, unsigned int *data); | |
03aef4b6 | 2630 | |
da91b269 BP |
2631 | static int ni_ai_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, |
2632 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
2633 | { |
2634 | if (insn->n < 1) | |
2635 | return -EINVAL; | |
2636 | ||
2637 | switch (data[0]) { | |
2638 | case INSN_CONFIG_ANALOG_TRIG: | |
2639 | return ni_ai_config_analog_trig(dev, s, insn, data); | |
2640 | case INSN_CONFIG_ALT_SOURCE: | |
2641 | if (boardtype.reg_type & ni_reg_m_series_mask) { | |
2642 | if (data[1] & ~(MSeries_AI_Bypass_Cal_Sel_Pos_Mask | | |
2643 | MSeries_AI_Bypass_Cal_Sel_Neg_Mask | | |
2644 | MSeries_AI_Bypass_Mode_Mux_Mask | | |
2645 | MSeries_AO_Bypass_AO_Cal_Sel_Mask)) { | |
2646 | return -EINVAL; | |
2647 | } | |
2648 | devpriv->ai_calib_source = data[1]; | |
2649 | } else if (boardtype.reg_type == ni_reg_6143) { | |
2650 | unsigned int calib_source; | |
2651 | ||
2652 | calib_source = data[1] & 0xf; | |
2653 | ||
2654 | if (calib_source > 0xF) | |
2655 | return -EINVAL; | |
2656 | ||
2657 | devpriv->ai_calib_source = calib_source; | |
2658 | ni_writew(calib_source, Calibration_Channel_6143); | |
2659 | } else { | |
2660 | unsigned int calib_source; | |
2661 | unsigned int calib_source_adjust; | |
2662 | ||
2663 | calib_source = data[1] & 0xf; | |
2664 | calib_source_adjust = (data[1] >> 4) & 0xff; | |
2665 | ||
2666 | if (calib_source >= 8) | |
2667 | return -EINVAL; | |
2668 | devpriv->ai_calib_source = calib_source; | |
2669 | if (boardtype.reg_type == ni_reg_611x) { | |
2670 | ni_writeb(calib_source_adjust, | |
2671 | Cal_Gain_Select_611x); | |
2672 | } | |
2673 | } | |
2674 | return 2; | |
2675 | default: | |
2676 | break; | |
2677 | } | |
2678 | ||
2679 | return -EINVAL; | |
2680 | } | |
2681 | ||
da91b269 BP |
2682 | static int ni_ai_config_analog_trig(struct comedi_device *dev, struct comedi_subdevice *s, |
2683 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
2684 | { |
2685 | unsigned int a, b, modebits; | |
2686 | int err = 0; | |
2687 | ||
2688 | /* data[1] is flags | |
2689 | * data[2] is analog line | |
2690 | * data[3] is set level | |
2691 | * data[4] is reset level */ | |
2692 | if (!boardtype.has_analog_trig) | |
2693 | return -EINVAL; | |
2694 | if ((data[1] & 0xffff0000) != COMEDI_EV_SCAN_BEGIN) { | |
2695 | data[1] &= (COMEDI_EV_SCAN_BEGIN | 0xffff); | |
2696 | err++; | |
2697 | } | |
2698 | if (data[2] >= boardtype.n_adchan) { | |
2699 | data[2] = boardtype.n_adchan - 1; | |
2700 | err++; | |
2701 | } | |
2702 | if (data[3] > 255) { /* a */ | |
2703 | data[3] = 255; | |
2704 | err++; | |
2705 | } | |
2706 | if (data[4] > 255) { /* b */ | |
2707 | data[4] = 255; | |
2708 | err++; | |
2709 | } | |
2710 | /* | |
2711 | * 00 ignore | |
2712 | * 01 set | |
2713 | * 10 reset | |
2714 | * | |
2715 | * modes: | |
2716 | * 1 level: +b- +a- | |
2717 | * high mode 00 00 01 10 | |
2718 | * low mode 00 00 10 01 | |
2719 | * 2 level: (a<b) | |
2720 | * hysteresis low mode 10 00 00 01 | |
2721 | * hysteresis high mode 01 00 00 10 | |
2722 | * middle mode 10 01 01 10 | |
2723 | */ | |
2724 | ||
2725 | a = data[3]; | |
2726 | b = data[4]; | |
2727 | modebits = data[1] & 0xff; | |
2728 | if (modebits & 0xf0) { | |
2729 | /* two level mode */ | |
2730 | if (b < a) { | |
2731 | /* swap order */ | |
2732 | a = data[4]; | |
2733 | b = data[3]; | |
2734 | modebits = | |
2735 | ((data[1] & 0xf) << 4) | ((data[1] & 0xf0) >> | |
2736 | 4); | |
2737 | } | |
2738 | devpriv->atrig_low = a; | |
2739 | devpriv->atrig_high = b; | |
2740 | switch (modebits) { | |
2741 | case 0x81: /* low hysteresis mode */ | |
2742 | devpriv->atrig_mode = 6; | |
2743 | break; | |
2744 | case 0x42: /* high hysteresis mode */ | |
2745 | devpriv->atrig_mode = 3; | |
2746 | break; | |
2747 | case 0x96: /* middle window mode */ | |
2748 | devpriv->atrig_mode = 2; | |
2749 | break; | |
2750 | default: | |
2751 | data[1] &= ~0xff; | |
2752 | err++; | |
2753 | } | |
2754 | } else { | |
2755 | /* one level mode */ | |
2756 | if (b != 0) { | |
2757 | data[4] = 0; | |
2758 | err++; | |
2759 | } | |
2760 | switch (modebits) { | |
2761 | case 0x06: /* high window mode */ | |
2762 | devpriv->atrig_high = a; | |
2763 | devpriv->atrig_mode = 0; | |
2764 | break; | |
2765 | case 0x09: /* low window mode */ | |
2766 | devpriv->atrig_low = a; | |
2767 | devpriv->atrig_mode = 1; | |
2768 | break; | |
2769 | default: | |
2770 | data[1] &= ~0xff; | |
2771 | err++; | |
2772 | } | |
2773 | } | |
2774 | if (err) | |
2775 | return -EAGAIN; | |
2776 | return 5; | |
2777 | } | |
2778 | ||
2779 | /* munge data from unsigned to 2's complement for analog output bipolar modes */ | |
da91b269 | 2780 | static void ni_ao_munge(struct comedi_device *dev, struct comedi_subdevice *s, |
03aef4b6 DS |
2781 | void *data, unsigned int num_bytes, unsigned int chan_index) |
2782 | { | |
d163679c | 2783 | struct comedi_async *async = s->async; |
03aef4b6 DS |
2784 | unsigned int range; |
2785 | unsigned int i; | |
2786 | unsigned int offset; | |
790c5541 BP |
2787 | unsigned int length = num_bytes / sizeof(short); |
2788 | short *array = data; | |
03aef4b6 DS |
2789 | |
2790 | offset = 1 << (boardtype.aobits - 1); | |
2791 | for (i = 0; i < length; i++) { | |
2792 | range = CR_RANGE(async->cmd.chanlist[chan_index]); | |
2793 | if (boardtype.ao_unipolar == 0 || (range & 1) == 0) | |
2794 | array[i] -= offset; | |
2795 | #ifdef PCIDMA | |
2796 | array[i] = cpu_to_le16(array[i]); | |
2797 | #endif | |
2798 | chan_index++; | |
2799 | chan_index %= async->cmd.chanlist_len; | |
2800 | } | |
2801 | } | |
2802 | ||
da91b269 BP |
2803 | static int ni_m_series_ao_config_chanlist(struct comedi_device *dev, |
2804 | struct comedi_subdevice *s, unsigned int chanspec[], unsigned int n_chans, | |
03aef4b6 DS |
2805 | int timed) |
2806 | { | |
2807 | unsigned int range; | |
2808 | unsigned int chan; | |
2809 | unsigned int conf; | |
2810 | int i; | |
2811 | int invert = 0; | |
2812 | ||
2813 | if(timed) { | |
2814 | for (i = 0; i < boardtype.n_aochan; ++i) { | |
2815 | devpriv->ao_conf[i] &= ~MSeries_AO_Update_Timed_Bit; | |
2816 | ni_writeb(devpriv->ao_conf[i], M_Offset_AO_Config_Bank(i)); | |
2817 | ni_writeb(0xf, M_Offset_AO_Waveform_Order(i)); | |
2818 | } | |
2819 | } | |
2820 | for (i = 0; i < n_chans; i++) { | |
1f6325d6 | 2821 | const struct comedi_krange *krange; |
03aef4b6 DS |
2822 | chan = CR_CHAN(chanspec[i]); |
2823 | range = CR_RANGE(chanspec[i]); | |
2824 | krange = s->range_table->range + range; | |
2825 | invert = 0; | |
2826 | conf = 0; | |
2827 | switch (krange->max - krange->min) { | |
2828 | case 20000000: | |
2829 | conf |= MSeries_AO_DAC_Reference_10V_Internal_Bits; | |
2830 | ni_writeb(0, M_Offset_AO_Reference_Attenuation(chan)); | |
2831 | break; | |
2832 | case 10000000: | |
2833 | conf |= MSeries_AO_DAC_Reference_5V_Internal_Bits; | |
2834 | ni_writeb(0, M_Offset_AO_Reference_Attenuation(chan)); | |
2835 | break; | |
2836 | case 4000000: | |
2837 | conf |= MSeries_AO_DAC_Reference_10V_Internal_Bits; | |
2838 | ni_writeb(MSeries_Attenuate_x5_Bit, | |
2839 | M_Offset_AO_Reference_Attenuation(chan)); | |
2840 | break; | |
2841 | case 2000000: | |
2842 | conf |= MSeries_AO_DAC_Reference_5V_Internal_Bits; | |
2843 | ni_writeb(MSeries_Attenuate_x5_Bit, | |
2844 | M_Offset_AO_Reference_Attenuation(chan)); | |
2845 | break; | |
2846 | default: | |
2847 | rt_printk("%s: bug! unhandled ao reference voltage\n", | |
ddcb01d4 | 2848 | __func__); |
03aef4b6 DS |
2849 | break; |
2850 | } | |
2851 | switch (krange->max + krange->min) { | |
2852 | case 0: | |
2853 | conf |= MSeries_AO_DAC_Offset_0V_Bits; | |
2854 | break; | |
2855 | case 10000000: | |
2856 | conf |= MSeries_AO_DAC_Offset_5V_Bits; | |
2857 | break; | |
2858 | default: | |
2859 | rt_printk("%s: bug! unhandled ao offset voltage\n", | |
ddcb01d4 | 2860 | __func__); |
03aef4b6 DS |
2861 | break; |
2862 | } | |
2863 | if (timed) | |
2864 | conf |= MSeries_AO_Update_Timed_Bit; | |
2865 | ni_writeb(conf, M_Offset_AO_Config_Bank(chan)); | |
2866 | devpriv->ao_conf[chan] = conf; | |
2867 | ni_writeb(i, M_Offset_AO_Waveform_Order(chan)); | |
2868 | } | |
2869 | return invert; | |
2870 | } | |
2871 | ||
da91b269 | 2872 | static int ni_old_ao_config_chanlist(struct comedi_device *dev, struct comedi_subdevice *s, |
03aef4b6 DS |
2873 | unsigned int chanspec[], unsigned int n_chans) |
2874 | { | |
2875 | unsigned int range; | |
2876 | unsigned int chan; | |
2877 | unsigned int conf; | |
2878 | int i; | |
2879 | int invert = 0; | |
2880 | ||
2881 | for (i = 0; i < n_chans; i++) { | |
2882 | chan = CR_CHAN(chanspec[i]); | |
2883 | range = CR_RANGE(chanspec[i]); | |
2884 | conf = AO_Channel(chan); | |
2885 | ||
2886 | if (boardtype.ao_unipolar) { | |
2887 | if ((range & 1) == 0) { | |
2888 | conf |= AO_Bipolar; | |
2889 | invert = (1 << (boardtype.aobits - 1)); | |
2890 | } else { | |
2891 | invert = 0; | |
2892 | } | |
2893 | if (range & 2) | |
2894 | conf |= AO_Ext_Ref; | |
2895 | } else { | |
2896 | conf |= AO_Bipolar; | |
2897 | invert = (1 << (boardtype.aobits - 1)); | |
2898 | } | |
2899 | ||
2900 | /* not all boards can deglitch, but this shouldn't hurt */ | |
2901 | if (chanspec[i] & CR_DEGLITCH) | |
2902 | conf |= AO_Deglitch; | |
2903 | ||
2904 | /* analog reference */ | |
2905 | /* AREF_OTHER connects AO ground to AI ground, i think */ | |
2906 | conf |= (CR_AREF(chanspec[i]) == | |
2907 | AREF_OTHER) ? AO_Ground_Ref : 0; | |
2908 | ||
2909 | ni_writew(conf, AO_Configuration); | |
2910 | devpriv->ao_conf[chan] = conf; | |
2911 | } | |
2912 | return invert; | |
2913 | } | |
2914 | ||
da91b269 | 2915 | static int ni_ao_config_chanlist(struct comedi_device *dev, struct comedi_subdevice *s, |
03aef4b6 DS |
2916 | unsigned int chanspec[], unsigned int n_chans, int timed) |
2917 | { | |
2918 | if (boardtype.reg_type & ni_reg_m_series_mask) | |
2919 | return ni_m_series_ao_config_chanlist(dev, s, chanspec, n_chans, | |
2920 | timed); | |
2921 | else | |
2922 | return ni_old_ao_config_chanlist(dev, s, chanspec, n_chans); | |
2923 | } | |
da91b269 BP |
2924 | static int ni_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, |
2925 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
2926 | { |
2927 | data[0] = devpriv->ao[CR_CHAN(insn->chanspec)]; | |
2928 | ||
2929 | return 1; | |
2930 | } | |
2931 | ||
da91b269 BP |
2932 | static int ni_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, |
2933 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
2934 | { |
2935 | unsigned int chan = CR_CHAN(insn->chanspec); | |
2936 | unsigned int invert; | |
2937 | ||
2938 | invert = ni_ao_config_chanlist(dev, s, &insn->chanspec, 1, 0); | |
2939 | ||
2940 | devpriv->ao[chan] = data[0]; | |
2941 | ||
2942 | if (boardtype.reg_type & ni_reg_m_series_mask) { | |
2943 | ni_writew(data[0], M_Offset_DAC_Direct_Data(chan)); | |
2944 | } else | |
2945 | ni_writew(data[0] ^ invert, | |
2946 | (chan) ? DAC1_Direct_Data : DAC0_Direct_Data); | |
2947 | ||
2948 | return 1; | |
2949 | } | |
2950 | ||
da91b269 BP |
2951 | static int ni_ao_insn_write_671x(struct comedi_device *dev, struct comedi_subdevice *s, |
2952 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
2953 | { |
2954 | unsigned int chan = CR_CHAN(insn->chanspec); | |
2955 | unsigned int invert; | |
2956 | ||
2957 | ao_win_out(1 << chan, AO_Immediate_671x); | |
2958 | invert = 1 << (boardtype.aobits - 1); | |
2959 | ||
2960 | ni_ao_config_chanlist(dev, s, &insn->chanspec, 1, 0); | |
2961 | ||
2962 | devpriv->ao[chan] = data[0]; | |
2963 | ao_win_out(data[0] ^ invert, DACx_Direct_Data_671x(chan)); | |
2964 | ||
2965 | return 1; | |
2966 | } | |
2967 | ||
da91b269 BP |
2968 | static int ni_ao_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, |
2969 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
2970 | { |
2971 | switch (data[0]) { | |
2972 | case INSN_CONFIG_GET_HARDWARE_BUFFER_SIZE: | |
2973 | switch(data[1]) | |
2974 | { | |
2975 | case COMEDI_OUTPUT: | |
790c5541 | 2976 | data[2] = 1 + boardtype.ao_fifo_depth * sizeof(short); |
03aef4b6 DS |
2977 | if(devpriv->mite) data[2] += devpriv->mite->fifo_size; |
2978 | break; | |
2979 | case COMEDI_INPUT: | |
2980 | data[2] = 0; | |
2981 | break; | |
2982 | default: | |
2983 | return -EINVAL; | |
2984 | break; | |
2985 | } | |
2986 | return 0; | |
2987 | default: | |
2988 | break; | |
2989 | } | |
2990 | ||
2991 | return -EINVAL; | |
2992 | } | |
2993 | ||
da91b269 | 2994 | static int ni_ao_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, |
03aef4b6 DS |
2995 | unsigned int trignum) |
2996 | { | |
2997 | int ret; | |
2998 | int interrupt_b_bits; | |
2999 | int i; | |
3000 | static const int timeout = 1000; | |
3001 | ||
3002 | if (trignum != 0) | |
3003 | return -EINVAL; | |
3004 | ||
3005 | /* Null trig at beginning prevent ao start trigger from executing more than | |
3006 | once per command (and doing things like trying to allocate the ao dma channel | |
3007 | multiple times) */ | |
3008 | s->async->inttrig = NULL; | |
3009 | ||
3010 | ni_set_bits(dev, Interrupt_B_Enable_Register, | |
3011 | AO_FIFO_Interrupt_Enable | AO_Error_Interrupt_Enable, 0); | |
3012 | interrupt_b_bits = AO_Error_Interrupt_Enable; | |
3013 | #ifdef PCIDMA | |
3014 | devpriv->stc_writew(dev, 1, DAC_FIFO_Clear); | |
3015 | if (boardtype.reg_type & ni_reg_6xxx_mask) | |
3016 | ni_ao_win_outl(dev, 0x6, AO_FIFO_Offset_Load_611x); | |
3017 | ret = ni_ao_setup_MITE_dma(dev); | |
3018 | if (ret) | |
3019 | return ret; | |
3020 | ret = ni_ao_wait_for_dma_load(dev); | |
3021 | if (ret < 0) | |
3022 | return ret; | |
3023 | #else | |
3024 | ret = ni_ao_prep_fifo(dev, s); | |
3025 | if (ret == 0) | |
3026 | return -EPIPE; | |
3027 | ||
3028 | interrupt_b_bits |= AO_FIFO_Interrupt_Enable; | |
3029 | #endif | |
3030 | ||
3031 | devpriv->stc_writew(dev, devpriv->ao_mode3 | AO_Not_An_UPDATE, | |
3032 | AO_Mode_3_Register); | |
3033 | devpriv->stc_writew(dev, devpriv->ao_mode3, AO_Mode_3_Register); | |
3034 | /* wait for DACs to be loaded */ | |
3035 | for (i = 0; i < timeout; i++) { | |
3036 | comedi_udelay(1); | |
3037 | if ((devpriv->stc_readw(dev, | |
3038 | Joint_Status_2_Register) & | |
3039 | AO_TMRDACWRs_In_Progress_St) == 0) | |
3040 | break; | |
3041 | } | |
3042 | if (i == timeout) { | |
3043 | comedi_error(dev, | |
3044 | "timed out waiting for AO_TMRDACWRs_In_Progress_St to clear"); | |
3045 | return -EIO; | |
3046 | } | |
2696fb57 | 3047 | /* stc manual says we are need to clear error interrupt after AO_TMRDACWRs_In_Progress_St clears */ |
03aef4b6 DS |
3048 | devpriv->stc_writew(dev, AO_Error_Interrupt_Ack, |
3049 | Interrupt_B_Ack_Register); | |
3050 | ||
3051 | ni_set_bits(dev, Interrupt_B_Enable_Register, interrupt_b_bits, 1); | |
3052 | ||
3053 | devpriv->stc_writew(dev, | |
3054 | devpriv-> | |
3055 | ao_cmd1 | AO_UI_Arm | AO_UC_Arm | AO_BC_Arm | | |
3056 | AO_DAC1_Update_Mode | AO_DAC0_Update_Mode, | |
3057 | AO_Command_1_Register); | |
3058 | ||
3059 | devpriv->stc_writew(dev, devpriv->ao_cmd2 | AO_START1_Pulse, | |
3060 | AO_Command_2_Register); | |
3061 | ||
3062 | return 0; | |
3063 | } | |
3064 | ||
da91b269 | 3065 | static int ni_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
03aef4b6 | 3066 | { |
ea6d0d4c | 3067 | const struct comedi_cmd *cmd = &s->async->cmd; |
03aef4b6 DS |
3068 | int bits; |
3069 | int i; | |
3070 | unsigned trigvar; | |
3071 | ||
3072 | if (dev->irq == 0) { | |
3073 | comedi_error(dev, "cannot run command without an irq"); | |
3074 | return -EIO; | |
3075 | } | |
3076 | ||
3077 | devpriv->stc_writew(dev, AO_Configuration_Start, Joint_Reset_Register); | |
3078 | ||
3079 | devpriv->stc_writew(dev, AO_Disarm, AO_Command_1_Register); | |
3080 | ||
3081 | if (boardtype.reg_type & ni_reg_6xxx_mask) { | |
3082 | ao_win_out(CLEAR_WG, AO_Misc_611x); | |
3083 | ||
3084 | bits = 0; | |
3085 | for (i = 0; i < cmd->chanlist_len; i++) { | |
3086 | int chan; | |
3087 | ||
3088 | chan = CR_CHAN(cmd->chanlist[i]); | |
3089 | bits |= 1 << chan; | |
3090 | ao_win_out(chan, AO_Waveform_Generation_611x); | |
3091 | } | |
3092 | ao_win_out(bits, AO_Timed_611x); | |
3093 | } | |
3094 | ||
3095 | ni_ao_config_chanlist(dev, s, cmd->chanlist, cmd->chanlist_len, 1); | |
3096 | ||
3097 | if (cmd->stop_src == TRIG_NONE) { | |
3098 | devpriv->ao_mode1 |= AO_Continuous; | |
3099 | devpriv->ao_mode1 &= ~AO_Trigger_Once; | |
3100 | } else { | |
3101 | devpriv->ao_mode1 &= ~AO_Continuous; | |
3102 | devpriv->ao_mode1 |= AO_Trigger_Once; | |
3103 | } | |
3104 | devpriv->stc_writew(dev, devpriv->ao_mode1, AO_Mode_1_Register); | |
3105 | switch (cmd->start_src) { | |
3106 | case TRIG_INT: | |
3107 | case TRIG_NOW: | |
3108 | devpriv->ao_trigger_select &= | |
3109 | ~(AO_START1_Polarity | AO_START1_Select(-1)); | |
3110 | devpriv->ao_trigger_select |= AO_START1_Edge | AO_START1_Sync; | |
3111 | devpriv->stc_writew(dev, devpriv->ao_trigger_select, | |
3112 | AO_Trigger_Select_Register); | |
3113 | break; | |
3114 | case TRIG_EXT: | |
3115 | devpriv->ao_trigger_select = AO_START1_Select(CR_CHAN(cmd->start_arg)+1); | |
3116 | if (cmd->start_arg & CR_INVERT) | |
2696fb57 | 3117 | devpriv->ao_trigger_select |= AO_START1_Polarity; /* 0=active high, 1=active low. see daq-stc 3-24 (p186) */ |
03aef4b6 | 3118 | if (cmd->start_arg & CR_EDGE) |
2696fb57 | 3119 | devpriv->ao_trigger_select |= AO_START1_Edge; /* 0=edge detection disabled, 1=enabled */ |
03aef4b6 DS |
3120 | devpriv->stc_writew(dev, devpriv->ao_trigger_select, AO_Trigger_Select_Register); |
3121 | break; | |
3122 | default: | |
3123 | BUG(); | |
3124 | break; | |
3125 | } | |
3126 | devpriv->ao_mode3 &= ~AO_Trigger_Length; | |
3127 | devpriv->stc_writew(dev, devpriv->ao_mode3, AO_Mode_3_Register); | |
3128 | ||
3129 | devpriv->stc_writew(dev, devpriv->ao_mode1, AO_Mode_1_Register); | |
3130 | devpriv->ao_mode2 &= ~AO_BC_Initial_Load_Source; | |
3131 | devpriv->stc_writew(dev, devpriv->ao_mode2, AO_Mode_2_Register); | |
3132 | if (cmd->stop_src == TRIG_NONE) { | |
3133 | devpriv->stc_writel(dev, 0xffffff, AO_BC_Load_A_Register); | |
3134 | } else { | |
3135 | devpriv->stc_writel(dev, 0, AO_BC_Load_A_Register); | |
3136 | } | |
3137 | devpriv->stc_writew(dev, AO_BC_Load, AO_Command_1_Register); | |
3138 | devpriv->ao_mode2 &= ~AO_UC_Initial_Load_Source; | |
3139 | devpriv->stc_writew(dev, devpriv->ao_mode2, AO_Mode_2_Register); | |
3140 | switch (cmd->stop_src) { | |
3141 | case TRIG_COUNT: | |
3142 | if(boardtype.reg_type & ni_reg_m_series_mask) | |
3143 | { | |
2696fb57 | 3144 | /* this is how the NI example code does it for m-series boards, verified correct with 6259 */ |
03aef4b6 DS |
3145 | devpriv->stc_writel(dev, cmd->stop_arg - 1, AO_UC_Load_A_Register); |
3146 | devpriv->stc_writew(dev, AO_UC_Load, AO_Command_1_Register); | |
3147 | }else | |
3148 | { | |
3149 | devpriv->stc_writel(dev, cmd->stop_arg, AO_UC_Load_A_Register); | |
3150 | devpriv->stc_writew(dev, AO_UC_Load, AO_Command_1_Register); | |
3151 | devpriv->stc_writel(dev, cmd->stop_arg - 1, | |
3152 | AO_UC_Load_A_Register); | |
3153 | } | |
3154 | break; | |
3155 | case TRIG_NONE: | |
3156 | devpriv->stc_writel(dev, 0xffffff, AO_UC_Load_A_Register); | |
3157 | devpriv->stc_writew(dev, AO_UC_Load, AO_Command_1_Register); | |
3158 | devpriv->stc_writel(dev, 0xffffff, AO_UC_Load_A_Register); | |
3159 | break; | |
3160 | default: | |
3161 | devpriv->stc_writel(dev, 0, AO_UC_Load_A_Register); | |
3162 | devpriv->stc_writew(dev, AO_UC_Load, AO_Command_1_Register); | |
3163 | devpriv->stc_writel(dev, cmd->stop_arg, AO_UC_Load_A_Register); | |
3164 | } | |
3165 | ||
3166 | devpriv->ao_mode1 &= | |
3167 | ~(AO_UI_Source_Select(0x1f) | AO_UI_Source_Polarity | | |
3168 | AO_UPDATE_Source_Select(0x1f) | AO_UPDATE_Source_Polarity); | |
3169 | switch (cmd->scan_begin_src) { | |
3170 | case TRIG_TIMER: | |
3171 | devpriv->ao_cmd2 &= ~AO_BC_Gate_Enable; | |
3172 | trigvar = | |
3173 | ni_ns_to_timer(dev, cmd->scan_begin_arg, | |
3174 | TRIG_ROUND_NEAREST); | |
3175 | devpriv->stc_writel(dev, 1, AO_UI_Load_A_Register); | |
3176 | devpriv->stc_writew(dev, AO_UI_Load, AO_Command_1_Register); | |
3177 | devpriv->stc_writel(dev, trigvar, AO_UI_Load_A_Register); | |
3178 | break; | |
3179 | case TRIG_EXT: | |
3180 | devpriv->ao_mode1 |= | |
3181 | AO_UPDATE_Source_Select(cmd->scan_begin_arg); | |
3182 | if (cmd->scan_begin_arg & CR_INVERT) | |
3183 | devpriv->ao_mode1 |= AO_UPDATE_Source_Polarity; | |
3184 | devpriv->ao_cmd2 |= AO_BC_Gate_Enable; | |
3185 | break; | |
3186 | default: | |
3187 | BUG(); | |
3188 | break; | |
3189 | } | |
3190 | devpriv->stc_writew(dev, devpriv->ao_cmd2, AO_Command_2_Register); | |
3191 | devpriv->stc_writew(dev, devpriv->ao_mode1, AO_Mode_1_Register); | |
3192 | devpriv->ao_mode2 &= | |
3193 | ~(AO_UI_Reload_Mode(3) | AO_UI_Initial_Load_Source); | |
3194 | devpriv->stc_writew(dev, devpriv->ao_mode2, AO_Mode_2_Register); | |
3195 | ||
3196 | if (cmd->scan_end_arg > 1) { | |
3197 | devpriv->ao_mode1 |= AO_Multiple_Channels; | |
3198 | devpriv->stc_writew(dev, | |
3199 | AO_Number_Of_Channels(cmd->scan_end_arg - | |
3200 | 1) | | |
3201 | AO_UPDATE_Output_Select | |
3202 | (AO_Update_Output_High_Z), | |
3203 | AO_Output_Control_Register); | |
3204 | } else { | |
3205 | unsigned bits; | |
3206 | devpriv->ao_mode1 &= ~AO_Multiple_Channels; | |
3207 | bits = AO_UPDATE_Output_Select(AO_Update_Output_High_Z); | |
3208 | if (boardtype.reg_type & (ni_reg_m_series_mask | ni_reg_6xxx_mask)) { | |
3209 | bits |= AO_Number_Of_Channels(0); | |
3210 | } else { | |
3211 | bits |= AO_Number_Of_Channels(CR_CHAN(cmd-> | |
3212 | chanlist[0])); | |
3213 | } | |
3214 | devpriv->stc_writew(dev, bits, | |
3215 | AO_Output_Control_Register); | |
3216 | } | |
3217 | devpriv->stc_writew(dev, devpriv->ao_mode1, AO_Mode_1_Register); | |
3218 | ||
3219 | devpriv->stc_writew(dev, AO_DAC0_Update_Mode | AO_DAC1_Update_Mode, | |
3220 | AO_Command_1_Register); | |
3221 | ||
3222 | devpriv->ao_mode3 |= AO_Stop_On_Overrun_Error; | |
3223 | devpriv->stc_writew(dev, devpriv->ao_mode3, AO_Mode_3_Register); | |
3224 | ||
3225 | devpriv->ao_mode2 &= ~AO_FIFO_Mode_Mask; | |
3226 | #ifdef PCIDMA | |
3227 | devpriv->ao_mode2 |= AO_FIFO_Mode_HF_to_F; | |
3228 | #else | |
3229 | devpriv->ao_mode2 |= AO_FIFO_Mode_HF; | |
3230 | #endif | |
3231 | devpriv->ao_mode2 &= ~AO_FIFO_Retransmit_Enable; | |
3232 | devpriv->stc_writew(dev, devpriv->ao_mode2, AO_Mode_2_Register); | |
3233 | ||
3234 | bits = AO_BC_Source_Select | AO_UPDATE_Pulse_Width | | |
3235 | AO_TMRDACWR_Pulse_Width; | |
3236 | if (boardtype.ao_fifo_depth) | |
3237 | bits |= AO_FIFO_Enable; | |
3238 | else | |
3239 | bits |= AO_DMA_PIO_Control; | |
3240 | #if 0 | |
3241 | /* F Hess: windows driver does not set AO_Number_Of_DAC_Packages bit for 6281, | |
3242 | verified with bus analyzer. */ | |
3243 | if (boardtype.reg_type & ni_reg_m_series_mask) | |
3244 | bits |= AO_Number_Of_DAC_Packages; | |
3245 | #endif | |
3246 | devpriv->stc_writew(dev, bits, AO_Personal_Register); | |
2696fb57 | 3247 | /* enable sending of ao dma requests */ |
03aef4b6 DS |
3248 | devpriv->stc_writew(dev, AO_AOFREQ_Enable, AO_Start_Select_Register); |
3249 | ||
3250 | devpriv->stc_writew(dev, AO_Configuration_End, Joint_Reset_Register); | |
3251 | ||
3252 | if (cmd->stop_src == TRIG_COUNT) { | |
3253 | devpriv->stc_writew(dev, AO_BC_TC_Interrupt_Ack, | |
3254 | Interrupt_B_Ack_Register); | |
3255 | ni_set_bits(dev, Interrupt_B_Enable_Register, | |
3256 | AO_BC_TC_Interrupt_Enable, 1); | |
3257 | } | |
3258 | ||
3259 | s->async->inttrig = &ni_ao_inttrig; | |
3260 | ||
3261 | return 0; | |
3262 | } | |
3263 | ||
da91b269 BP |
3264 | static int ni_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, |
3265 | struct comedi_cmd *cmd) | |
03aef4b6 DS |
3266 | { |
3267 | int err = 0; | |
3268 | int tmp; | |
3269 | ||
3270 | /* step 1: make sure trigger sources are trivially valid */ | |
3271 | ||
3272 | if ((cmd->flags & CMDF_WRITE) == 0) { | |
3273 | cmd->flags |= CMDF_WRITE; | |
3274 | } | |
3275 | ||
3276 | tmp = cmd->start_src; | |
3277 | cmd->start_src &= TRIG_INT | TRIG_EXT; | |
3278 | if (!cmd->start_src || tmp != cmd->start_src) | |
3279 | err++; | |
3280 | ||
3281 | tmp = cmd->scan_begin_src; | |
3282 | cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT; | |
3283 | if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) | |
3284 | err++; | |
3285 | ||
3286 | tmp = cmd->convert_src; | |
3287 | cmd->convert_src &= TRIG_NOW; | |
3288 | if (!cmd->convert_src || tmp != cmd->convert_src) | |
3289 | err++; | |
3290 | ||
3291 | tmp = cmd->scan_end_src; | |
3292 | cmd->scan_end_src &= TRIG_COUNT; | |
3293 | if (!cmd->scan_end_src || tmp != cmd->scan_end_src) | |
3294 | err++; | |
3295 | ||
3296 | tmp = cmd->stop_src; | |
3297 | cmd->stop_src &= TRIG_COUNT | TRIG_NONE; | |
3298 | if (!cmd->stop_src || tmp != cmd->stop_src) | |
3299 | err++; | |
3300 | ||
3301 | if (err) | |
3302 | return 1; | |
3303 | ||
3304 | /* step 2: make sure trigger sources are unique and mutually compatible */ | |
3305 | ||
3306 | if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE) | |
3307 | err++; | |
3308 | ||
3309 | if (err) | |
3310 | return 2; | |
3311 | ||
3312 | /* step 3: make sure arguments are trivially compatible */ | |
3313 | ||
3314 | if (cmd->start_src == TRIG_EXT) { | |
3315 | /* external trigger */ | |
3316 | unsigned int tmp = CR_CHAN(cmd->start_arg); | |
3317 | ||
3318 | if (tmp > 18) | |
3319 | tmp = 18; | |
3320 | tmp |= (cmd->start_arg & (CR_INVERT | CR_EDGE)); | |
3321 | if (cmd->start_arg != tmp) { | |
3322 | cmd->start_arg = tmp; | |
3323 | err++; | |
3324 | } | |
3325 | } else { | |
3326 | if (cmd->start_arg != 0) { | |
3327 | /* true for both TRIG_NOW and TRIG_INT */ | |
3328 | cmd->start_arg = 0; | |
3329 | err++; | |
3330 | } | |
3331 | } | |
3332 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
3333 | if (cmd->scan_begin_arg < boardtype.ao_speed) { | |
3334 | cmd->scan_begin_arg = boardtype.ao_speed; | |
3335 | err++; | |
3336 | } | |
3337 | if (cmd->scan_begin_arg > devpriv->clock_ns * 0xffffff) { /* XXX check */ | |
3338 | cmd->scan_begin_arg = devpriv->clock_ns * 0xffffff; | |
3339 | err++; | |
3340 | } | |
3341 | } | |
3342 | if (cmd->convert_arg != 0) { | |
3343 | cmd->convert_arg = 0; | |
3344 | err++; | |
3345 | } | |
3346 | if (cmd->scan_end_arg != cmd->chanlist_len) { | |
3347 | cmd->scan_end_arg = cmd->chanlist_len; | |
3348 | err++; | |
3349 | } | |
3350 | if (cmd->stop_src == TRIG_COUNT) { /* XXX check */ | |
3351 | if (cmd->stop_arg > 0x00ffffff) { | |
3352 | cmd->stop_arg = 0x00ffffff; | |
3353 | err++; | |
3354 | } | |
3355 | } else { | |
3356 | /* TRIG_NONE */ | |
3357 | if (cmd->stop_arg != 0) { | |
3358 | cmd->stop_arg = 0; | |
3359 | err++; | |
3360 | } | |
3361 | } | |
3362 | ||
3363 | if (err) | |
3364 | return 3; | |
3365 | ||
3366 | /* step 4: fix up any arguments */ | |
3367 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
3368 | tmp = cmd->scan_begin_arg; | |
3369 | cmd->scan_begin_arg = | |
3370 | ni_timer_to_ns(dev, ni_ns_to_timer(dev, | |
3371 | cmd->scan_begin_arg, | |
3372 | cmd->flags & TRIG_ROUND_MASK)); | |
3373 | if (tmp != cmd->scan_begin_arg) | |
3374 | err++; | |
3375 | } | |
3376 | if (err) | |
3377 | return 4; | |
3378 | ||
3379 | /* step 5: fix up chanlist */ | |
3380 | ||
3381 | if (err) | |
3382 | return 5; | |
3383 | ||
3384 | return 0; | |
3385 | } | |
3386 | ||
da91b269 | 3387 | static int ni_ao_reset(struct comedi_device *dev, struct comedi_subdevice *s) |
03aef4b6 | 3388 | { |
2696fb57 BP |
3389 | /* devpriv->ao0p=0x0000; */ |
3390 | /* ni_writew(devpriv->ao0p,AO_Configuration); */ | |
03aef4b6 | 3391 | |
2696fb57 BP |
3392 | /* devpriv->ao1p=AO_Channel(1); */ |
3393 | /* ni_writew(devpriv->ao1p,AO_Configuration); */ | |
03aef4b6 DS |
3394 | |
3395 | ni_release_ao_mite_channel(dev); | |
3396 | ||
3397 | devpriv->stc_writew(dev, AO_Configuration_Start, Joint_Reset_Register); | |
3398 | devpriv->stc_writew(dev, AO_Disarm, AO_Command_1_Register); | |
3399 | ni_set_bits(dev, Interrupt_B_Enable_Register, ~0, 0); | |
3400 | devpriv->stc_writew(dev, AO_BC_Source_Select, AO_Personal_Register); | |
3401 | devpriv->stc_writew(dev, 0x3f98, Interrupt_B_Ack_Register); | |
3402 | devpriv->stc_writew(dev, AO_BC_Source_Select | AO_UPDATE_Pulse_Width | | |
3403 | AO_TMRDACWR_Pulse_Width, AO_Personal_Register); | |
3404 | devpriv->stc_writew(dev, 0, AO_Output_Control_Register); | |
3405 | devpriv->stc_writew(dev, 0, AO_Start_Select_Register); | |
3406 | devpriv->ao_cmd1 = 0; | |
3407 | devpriv->stc_writew(dev, devpriv->ao_cmd1, AO_Command_1_Register); | |
3408 | devpriv->ao_cmd2 = 0; | |
3409 | devpriv->stc_writew(dev, devpriv->ao_cmd2, AO_Command_2_Register); | |
3410 | devpriv->ao_mode1 = 0; | |
3411 | devpriv->stc_writew(dev, devpriv->ao_mode1, AO_Mode_1_Register); | |
3412 | devpriv->ao_mode2 = 0; | |
3413 | devpriv->stc_writew(dev, devpriv->ao_mode2, AO_Mode_2_Register); | |
3414 | if (boardtype.reg_type & ni_reg_m_series_mask) | |
3415 | devpriv->ao_mode3 = AO_Last_Gate_Disable; | |
3416 | else | |
3417 | devpriv->ao_mode3 = 0; | |
3418 | devpriv->stc_writew(dev, devpriv->ao_mode3, AO_Mode_3_Register); | |
3419 | devpriv->ao_trigger_select = 0; | |
3420 | devpriv->stc_writew(dev, devpriv->ao_trigger_select, | |
3421 | AO_Trigger_Select_Register); | |
3422 | if (boardtype.reg_type & ni_reg_6xxx_mask) { | |
3423 | unsigned immediate_bits = 0; | |
3424 | unsigned i; | |
3425 | for(i = 0; i < s->n_chan; ++i) | |
3426 | { | |
3427 | immediate_bits |= 1 << i; | |
3428 | } | |
3429 | ao_win_out(immediate_bits, AO_Immediate_671x); | |
3430 | ao_win_out(CLEAR_WG, AO_Misc_611x); | |
3431 | } | |
3432 | devpriv->stc_writew(dev, AO_Configuration_End, Joint_Reset_Register); | |
3433 | ||
3434 | return 0; | |
3435 | } | |
3436 | ||
2696fb57 | 3437 | /* digital io */ |
03aef4b6 | 3438 | |
da91b269 BP |
3439 | static int ni_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, |
3440 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
3441 | { |
3442 | #ifdef DEBUG_DIO | |
3443 | rt_printk("ni_dio_insn_config() chan=%d io=%d\n", | |
3444 | CR_CHAN(insn->chanspec), data[0]); | |
3445 | #endif | |
3446 | switch (data[0]) { | |
3447 | case INSN_CONFIG_DIO_OUTPUT: | |
3448 | s->io_bits |= 1 << CR_CHAN(insn->chanspec); | |
3449 | break; | |
3450 | case INSN_CONFIG_DIO_INPUT: | |
3451 | s->io_bits &= ~(1 << CR_CHAN(insn->chanspec)); | |
3452 | break; | |
3453 | case INSN_CONFIG_DIO_QUERY: | |
3454 | data[1] = | |
3455 | (s->io_bits & (1 << CR_CHAN(insn-> | |
3456 | chanspec))) ? COMEDI_OUTPUT : | |
3457 | COMEDI_INPUT; | |
3458 | return insn->n; | |
3459 | break; | |
3460 | default: | |
3461 | return -EINVAL; | |
3462 | } | |
3463 | ||
3464 | devpriv->dio_control &= ~DIO_Pins_Dir_Mask; | |
3465 | devpriv->dio_control |= DIO_Pins_Dir(s->io_bits); | |
3466 | devpriv->stc_writew(dev, devpriv->dio_control, DIO_Control_Register); | |
3467 | ||
3468 | return 1; | |
3469 | } | |
3470 | ||
da91b269 BP |
3471 | static int ni_dio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, |
3472 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
3473 | { |
3474 | #ifdef DEBUG_DIO | |
3475 | rt_printk("ni_dio_insn_bits() mask=0x%x bits=0x%x\n", data[0], data[1]); | |
3476 | #endif | |
3477 | if (insn->n != 2) | |
3478 | return -EINVAL; | |
3479 | if (data[0]) { | |
3480 | /* Perform check to make sure we're not using the | |
3481 | serial part of the dio */ | |
3482 | if ((data[0] & (DIO_SDIN | DIO_SDOUT)) | |
3483 | && devpriv->serial_interval_ns) | |
3484 | return -EBUSY; | |
3485 | ||
3486 | s->state &= ~data[0]; | |
3487 | s->state |= (data[0] & data[1]); | |
3488 | devpriv->dio_output &= ~DIO_Parallel_Data_Mask; | |
3489 | devpriv->dio_output |= DIO_Parallel_Data_Out(s->state); | |
3490 | devpriv->stc_writew(dev, devpriv->dio_output, | |
3491 | DIO_Output_Register); | |
3492 | } | |
3493 | data[1] = devpriv->stc_readw(dev, DIO_Parallel_Input_Register); | |
3494 | ||
3495 | return 2; | |
3496 | } | |
3497 | ||
da91b269 BP |
3498 | static int ni_m_series_dio_insn_config(struct comedi_device *dev, |
3499 | struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
3500 | { |
3501 | #ifdef DEBUG_DIO | |
3502 | rt_printk("ni_m_series_dio_insn_config() chan=%d io=%d\n", | |
3503 | CR_CHAN(insn->chanspec), data[0]); | |
3504 | #endif | |
3505 | switch (data[0]) { | |
3506 | case INSN_CONFIG_DIO_OUTPUT: | |
3507 | s->io_bits |= 1 << CR_CHAN(insn->chanspec); | |
3508 | break; | |
3509 | case INSN_CONFIG_DIO_INPUT: | |
3510 | s->io_bits &= ~(1 << CR_CHAN(insn->chanspec)); | |
3511 | break; | |
3512 | case INSN_CONFIG_DIO_QUERY: | |
3513 | data[1] = | |
3514 | (s->io_bits & (1 << CR_CHAN(insn-> | |
3515 | chanspec))) ? COMEDI_OUTPUT : | |
3516 | COMEDI_INPUT; | |
3517 | return insn->n; | |
3518 | break; | |
3519 | default: | |
3520 | return -EINVAL; | |
3521 | } | |
3522 | ||
3523 | ni_writel(s->io_bits, M_Offset_DIO_Direction); | |
3524 | ||
3525 | return 1; | |
3526 | } | |
3527 | ||
da91b269 BP |
3528 | static int ni_m_series_dio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, |
3529 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
3530 | { |
3531 | #ifdef DEBUG_DIO | |
3532 | rt_printk("ni_m_series_dio_insn_bits() mask=0x%x bits=0x%x\n", data[0], | |
3533 | data[1]); | |
3534 | #endif | |
3535 | if (insn->n != 2) | |
3536 | return -EINVAL; | |
3537 | if (data[0]) { | |
3538 | s->state &= ~data[0]; | |
3539 | s->state |= (data[0] & data[1]); | |
3540 | ni_writel(s->state, M_Offset_Static_Digital_Output); | |
3541 | } | |
3542 | data[1] = ni_readl(M_Offset_Static_Digital_Input); | |
3543 | ||
3544 | return 2; | |
3545 | } | |
3546 | ||
da91b269 BP |
3547 | static int ni_cdio_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, |
3548 | struct comedi_cmd *cmd) | |
03aef4b6 DS |
3549 | { |
3550 | int err = 0; | |
3551 | int tmp; | |
3552 | int sources; | |
3553 | unsigned i; | |
3554 | ||
3555 | /* step 1: make sure trigger sources are trivially valid */ | |
3556 | ||
3557 | tmp = cmd->start_src; | |
3558 | sources = TRIG_INT; | |
3559 | cmd->start_src &= sources; | |
3560 | if (!cmd->start_src || tmp != cmd->start_src) | |
3561 | err++; | |
3562 | ||
3563 | tmp = cmd->scan_begin_src; | |
3564 | cmd->scan_begin_src &= TRIG_EXT; | |
3565 | if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) | |
3566 | err++; | |
3567 | ||
3568 | tmp = cmd->convert_src; | |
3569 | cmd->convert_src &= TRIG_NOW; | |
3570 | if (!cmd->convert_src || tmp != cmd->convert_src) | |
3571 | err++; | |
3572 | ||
3573 | tmp = cmd->scan_end_src; | |
3574 | cmd->scan_end_src &= TRIG_COUNT; | |
3575 | if (!cmd->scan_end_src || tmp != cmd->scan_end_src) | |
3576 | err++; | |
3577 | ||
3578 | tmp = cmd->stop_src; | |
3579 | cmd->stop_src &= TRIG_NONE; | |
3580 | if (!cmd->stop_src || tmp != cmd->stop_src) | |
3581 | err++; | |
3582 | ||
3583 | if (err) | |
3584 | return 1; | |
3585 | ||
3586 | /* step 2: make sure trigger sources are unique... */ | |
3587 | ||
3588 | if (cmd->start_src != TRIG_INT) | |
3589 | err++; | |
3590 | if (cmd->scan_begin_src != TRIG_EXT) | |
3591 | err++; | |
3592 | if (cmd->convert_src != TRIG_NOW) | |
3593 | err++; | |
3594 | if (cmd->stop_src != TRIG_NONE) | |
3595 | err++; | |
3596 | /* ... and mutually compatible */ | |
3597 | ||
3598 | if (err) | |
3599 | return 2; | |
3600 | ||
3601 | /* step 3: make sure arguments are trivially compatible */ | |
3602 | if (cmd->start_src == TRIG_INT) { | |
3603 | if (cmd->start_arg != 0) { | |
3604 | cmd->start_arg = 0; | |
3605 | err++; | |
3606 | } | |
3607 | } | |
3608 | if (cmd->scan_begin_src == TRIG_EXT) { | |
3609 | tmp = cmd->scan_begin_arg; | |
3610 | tmp &= CR_PACK_FLAGS(CDO_Sample_Source_Select_Mask, 0, 0, | |
3611 | CR_INVERT); | |
3612 | if (tmp != cmd->scan_begin_arg) { | |
3613 | err++; | |
3614 | } | |
3615 | } | |
3616 | if (cmd->convert_src == TRIG_NOW) { | |
3617 | if (cmd->convert_arg) { | |
3618 | cmd->convert_arg = 0; | |
3619 | err++; | |
3620 | } | |
3621 | } | |
3622 | ||
3623 | if (cmd->scan_end_arg != cmd->chanlist_len) { | |
3624 | cmd->scan_end_arg = cmd->chanlist_len; | |
3625 | err++; | |
3626 | } | |
3627 | ||
3628 | if (cmd->stop_src == TRIG_NONE) { | |
3629 | if (cmd->stop_arg != 0) { | |
3630 | cmd->stop_arg = 0; | |
3631 | err++; | |
3632 | } | |
3633 | } | |
3634 | ||
3635 | if (err) | |
3636 | return 3; | |
3637 | ||
3638 | /* step 4: fix up any arguments */ | |
3639 | ||
3640 | if (err) | |
3641 | return 4; | |
3642 | ||
3643 | /* step 5: check chanlist */ | |
3644 | ||
3645 | for (i = 0; i < cmd->chanlist_len; ++i) { | |
3646 | if (cmd->chanlist[i] != i) | |
3647 | err = 1; | |
3648 | } | |
3649 | ||
3650 | if (err) | |
3651 | return 5; | |
3652 | ||
3653 | return 0; | |
3654 | } | |
3655 | ||
da91b269 | 3656 | static int ni_cdio_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
03aef4b6 | 3657 | { |
ea6d0d4c | 3658 | const struct comedi_cmd *cmd = &s->async->cmd; |
03aef4b6 DS |
3659 | unsigned cdo_mode_bits = CDO_FIFO_Mode_Bit | CDO_Halt_On_Error_Bit; |
3660 | int retval; | |
3661 | ||
3662 | ni_writel(CDO_Reset_Bit, M_Offset_CDIO_Command); | |
3663 | switch (cmd->scan_begin_src) { | |
3664 | case TRIG_EXT: | |
3665 | cdo_mode_bits |= | |
3666 | CR_CHAN(cmd-> | |
3667 | scan_begin_arg) & CDO_Sample_Source_Select_Mask; | |
3668 | break; | |
3669 | default: | |
3670 | BUG(); | |
3671 | break; | |
3672 | } | |
3673 | if (cmd->scan_begin_arg & CR_INVERT) | |
3674 | cdo_mode_bits |= CDO_Polarity_Bit; | |
3675 | ni_writel(cdo_mode_bits, M_Offset_CDO_Mode); | |
3676 | if (s->io_bits) { | |
3677 | ni_writel(s->state, M_Offset_CDO_FIFO_Data); | |
3678 | ni_writel(CDO_SW_Update_Bit, M_Offset_CDIO_Command); | |
3679 | ni_writel(s->io_bits, M_Offset_CDO_Mask_Enable); | |
3680 | } else { | |
3681 | comedi_error(dev, | |
3682 | "attempted to run digital output command with no lines configured as outputs"); | |
3683 | return -EIO; | |
3684 | } | |
3685 | retval = ni_request_cdo_mite_channel(dev); | |
3686 | if (retval < 0) { | |
3687 | return retval; | |
3688 | } | |
3689 | s->async->inttrig = &ni_cdo_inttrig; | |
3690 | return 0; | |
3691 | } | |
3692 | ||
da91b269 | 3693 | static int ni_cdo_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, |
03aef4b6 DS |
3694 | unsigned int trignum) |
3695 | { | |
3696 | #ifdef PCIDMA | |
3697 | unsigned long flags; | |
3698 | #endif | |
3699 | int retval = 0; | |
3700 | unsigned i; | |
3701 | const unsigned timeout = 100; | |
3702 | ||
3703 | s->async->inttrig = NULL; | |
3704 | ||
3705 | /* read alloc the entire buffer */ | |
3706 | comedi_buf_read_alloc(s->async, s->async->prealloc_bufsz); | |
3707 | ||
3708 | #ifdef PCIDMA | |
3709 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags); | |
3710 | if (devpriv->cdo_mite_chan) { | |
3711 | mite_prep_dma(devpriv->cdo_mite_chan, 32, 32); | |
3712 | mite_dma_arm(devpriv->cdo_mite_chan); | |
3713 | } else { | |
3714 | comedi_error(dev, "BUG: no cdo mite channel?"); | |
3715 | retval = -EIO; | |
3716 | } | |
3717 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
3718 | if (retval < 0) | |
3719 | return retval; | |
3720 | #endif | |
2696fb57 BP |
3721 | /* |
3722 | * XXX not sure what interrupt C group does | |
3723 | * ni_writeb(Interrupt_Group_C_Enable_Bit, | |
3724 | * M_Offset_Interrupt_C_Enable); wait for dma to fill output fifo | |
3725 | */ | |
03aef4b6 DS |
3726 | for (i = 0; i < timeout; ++i) { |
3727 | if (ni_readl(M_Offset_CDIO_Status) & CDO_FIFO_Full_Bit) | |
3728 | break; | |
3729 | comedi_udelay(10); | |
3730 | } | |
3731 | if (i == timeout) { | |
3732 | comedi_error(dev, "dma failed to fill cdo fifo!"); | |
3733 | ni_cdio_cancel(dev, s); | |
3734 | return -EIO; | |
3735 | } | |
3736 | ni_writel(CDO_Arm_Bit | CDO_Error_Interrupt_Enable_Set_Bit | | |
3737 | CDO_Empty_FIFO_Interrupt_Enable_Set_Bit, M_Offset_CDIO_Command); | |
3738 | return retval; | |
3739 | } | |
3740 | ||
da91b269 | 3741 | static int ni_cdio_cancel(struct comedi_device *dev, struct comedi_subdevice *s) |
03aef4b6 DS |
3742 | { |
3743 | ni_writel(CDO_Disarm_Bit | CDO_Error_Interrupt_Enable_Clear_Bit | | |
3744 | CDO_Empty_FIFO_Interrupt_Enable_Clear_Bit | | |
3745 | CDO_FIFO_Request_Interrupt_Enable_Clear_Bit, | |
3746 | M_Offset_CDIO_Command); | |
2696fb57 BP |
3747 | /* |
3748 | * XXX not sure what interrupt C group does ni_writeb(0, | |
3749 | * M_Offset_Interrupt_C_Enable); | |
3750 | */ | |
03aef4b6 DS |
3751 | ni_writel(0, M_Offset_CDO_Mask_Enable); |
3752 | ni_release_cdo_mite_channel(dev); | |
3753 | return 0; | |
3754 | } | |
3755 | ||
da91b269 | 3756 | static void handle_cdio_interrupt(struct comedi_device *dev) |
03aef4b6 DS |
3757 | { |
3758 | unsigned cdio_status; | |
34c43922 | 3759 | struct comedi_subdevice *s = dev->subdevices + NI_DIO_SUBDEV; |
03aef4b6 DS |
3760 | #ifdef PCIDMA |
3761 | unsigned long flags; | |
3762 | #endif | |
3763 | ||
3764 | if ((boardtype.reg_type & ni_reg_m_series_mask) == 0) { | |
3765 | return; | |
3766 | } | |
3767 | #ifdef PCIDMA | |
3768 | comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags); | |
3769 | if (devpriv->cdo_mite_chan) { | |
3770 | unsigned cdo_mite_status = | |
3771 | mite_get_status(devpriv->cdo_mite_chan); | |
3772 | if (cdo_mite_status & CHSR_LINKC) { | |
3773 | writel(CHOR_CLRLC, | |
3774 | devpriv->mite->mite_io_addr + | |
3775 | MITE_CHOR(devpriv->cdo_mite_chan->channel)); | |
3776 | } | |
3777 | mite_sync_output_dma(devpriv->cdo_mite_chan, s->async); | |
3778 | } | |
3779 | comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); | |
3780 | #endif | |
3781 | ||
3782 | cdio_status = ni_readl(M_Offset_CDIO_Status); | |
3783 | if (cdio_status & (CDO_Overrun_Bit | CDO_Underflow_Bit)) { | |
2696fb57 BP |
3784 | /* rt_printk("cdio error: statux=0x%x\n", cdio_status); */ |
3785 | ni_writel(CDO_Error_Interrupt_Confirm_Bit, M_Offset_CDIO_Command); /* XXX just guessing this is needed and does something useful */ | |
03aef4b6 DS |
3786 | s->async->events |= COMEDI_CB_OVERFLOW; |
3787 | } | |
3788 | if (cdio_status & CDO_FIFO_Empty_Bit) { | |
2696fb57 | 3789 | /* rt_printk("cdio fifo empty\n"); */ |
03aef4b6 DS |
3790 | ni_writel(CDO_Empty_FIFO_Interrupt_Enable_Clear_Bit, |
3791 | M_Offset_CDIO_Command); | |
2696fb57 | 3792 | /* s->async->events |= COMEDI_CB_EOA; */ |
03aef4b6 DS |
3793 | } |
3794 | ni_event(dev, s); | |
3795 | } | |
3796 | ||
da91b269 BP |
3797 | static int ni_serial_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, |
3798 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
3799 | { |
3800 | int err = insn->n; | |
3801 | unsigned char byte_out, byte_in = 0; | |
3802 | ||
3803 | if (insn->n != 2) | |
3804 | return -EINVAL; | |
3805 | ||
3806 | switch (data[0]) { | |
3807 | case INSN_CONFIG_SERIAL_CLOCK: | |
3808 | ||
3809 | #ifdef DEBUG_DIO | |
3810 | rt_printk("SPI serial clock Config cd\n", data[1]); | |
3811 | #endif | |
3812 | devpriv->serial_hw_mode = 1; | |
3813 | devpriv->dio_control |= DIO_HW_Serial_Enable; | |
3814 | ||
3815 | if (data[1] == SERIAL_DISABLED) { | |
3816 | devpriv->serial_hw_mode = 0; | |
3817 | devpriv->dio_control &= ~(DIO_HW_Serial_Enable | | |
3818 | DIO_Software_Serial_Control); | |
3819 | data[1] = SERIAL_DISABLED; | |
3820 | devpriv->serial_interval_ns = data[1]; | |
3821 | } else if (data[1] <= SERIAL_600NS) { | |
3822 | /* Warning: this clock speed is too fast to reliably | |
3823 | control SCXI. */ | |
3824 | devpriv->dio_control &= ~DIO_HW_Serial_Timebase; | |
3825 | devpriv->clock_and_fout |= Slow_Internal_Timebase; | |
3826 | devpriv->clock_and_fout &= ~DIO_Serial_Out_Divide_By_2; | |
3827 | data[1] = SERIAL_600NS; | |
3828 | devpriv->serial_interval_ns = data[1]; | |
3829 | } else if (data[1] <= SERIAL_1_2US) { | |
3830 | devpriv->dio_control &= ~DIO_HW_Serial_Timebase; | |
3831 | devpriv->clock_and_fout |= Slow_Internal_Timebase | | |
3832 | DIO_Serial_Out_Divide_By_2; | |
3833 | data[1] = SERIAL_1_2US; | |
3834 | devpriv->serial_interval_ns = data[1]; | |
3835 | } else if (data[1] <= SERIAL_10US) { | |
3836 | devpriv->dio_control |= DIO_HW_Serial_Timebase; | |
3837 | devpriv->clock_and_fout |= Slow_Internal_Timebase | | |
3838 | DIO_Serial_Out_Divide_By_2; | |
3839 | /* Note: DIO_Serial_Out_Divide_By_2 only affects | |
3840 | 600ns/1.2us. If you turn divide_by_2 off with the | |
3841 | slow clock, you will still get 10us, except then | |
3842 | all your delays are wrong. */ | |
3843 | data[1] = SERIAL_10US; | |
3844 | devpriv->serial_interval_ns = data[1]; | |
3845 | } else { | |
3846 | devpriv->dio_control &= ~(DIO_HW_Serial_Enable | | |
3847 | DIO_Software_Serial_Control); | |
3848 | devpriv->serial_hw_mode = 0; | |
3849 | data[1] = (data[1] / 1000) * 1000; | |
3850 | devpriv->serial_interval_ns = data[1]; | |
3851 | } | |
3852 | ||
3853 | devpriv->stc_writew(dev, devpriv->dio_control, | |
3854 | DIO_Control_Register); | |
3855 | devpriv->stc_writew(dev, devpriv->clock_and_fout, | |
3856 | Clock_and_FOUT_Register); | |
3857 | return 1; | |
3858 | ||
3859 | break; | |
3860 | ||
3861 | case INSN_CONFIG_BIDIRECTIONAL_DATA: | |
3862 | ||
3863 | if (devpriv->serial_interval_ns == 0) { | |
3864 | return -EINVAL; | |
3865 | } | |
3866 | ||
3867 | byte_out = data[1] & 0xFF; | |
3868 | ||
3869 | if (devpriv->serial_hw_mode) { | |
3870 | err = ni_serial_hw_readwrite8(dev, s, byte_out, | |
3871 | &byte_in); | |
3872 | } else if (devpriv->serial_interval_ns > 0) { | |
3873 | err = ni_serial_sw_readwrite8(dev, s, byte_out, | |
3874 | &byte_in); | |
3875 | } else { | |
3876 | rt_printk("ni_serial_insn_config: serial disabled!\n"); | |
3877 | return -EINVAL; | |
3878 | } | |
3879 | if (err < 0) | |
3880 | return err; | |
3881 | data[1] = byte_in & 0xFF; | |
3882 | return insn->n; | |
3883 | ||
3884 | break; | |
3885 | default: | |
3886 | return -EINVAL; | |
3887 | } | |
3888 | ||
3889 | } | |
3890 | ||
da91b269 | 3891 | static int ni_serial_hw_readwrite8(struct comedi_device *dev, struct comedi_subdevice *s, |
03aef4b6 DS |
3892 | unsigned char data_out, unsigned char *data_in) |
3893 | { | |
3894 | unsigned int status1; | |
3895 | int err = 0, count = 20; | |
3896 | ||
3897 | #ifdef DEBUG_DIO | |
3898 | rt_printk("ni_serial_hw_readwrite8: outputting 0x%x\n", data_out); | |
3899 | #endif | |
3900 | ||
3901 | devpriv->dio_output &= ~DIO_Serial_Data_Mask; | |
3902 | devpriv->dio_output |= DIO_Serial_Data_Out(data_out); | |
3903 | devpriv->stc_writew(dev, devpriv->dio_output, DIO_Output_Register); | |
3904 | ||
3905 | status1 = devpriv->stc_readw(dev, Joint_Status_1_Register); | |
3906 | if (status1 & DIO_Serial_IO_In_Progress_St) { | |
3907 | err = -EBUSY; | |
3908 | goto Error; | |
3909 | } | |
3910 | ||
3911 | devpriv->dio_control |= DIO_HW_Serial_Start; | |
3912 | devpriv->stc_writew(dev, devpriv->dio_control, DIO_Control_Register); | |
3913 | devpriv->dio_control &= ~DIO_HW_Serial_Start; | |
3914 | ||
3915 | /* Wait until STC says we're done, but don't loop infinitely. */ | |
3916 | while ((status1 = | |
3917 | devpriv->stc_readw(dev, | |
3918 | Joint_Status_1_Register)) & | |
3919 | DIO_Serial_IO_In_Progress_St) { | |
3920 | /* Delay one bit per loop */ | |
3921 | comedi_udelay((devpriv->serial_interval_ns + 999) / 1000); | |
3922 | if (--count < 0) { | |
3923 | rt_printk | |
3924 | ("ni_serial_hw_readwrite8: SPI serial I/O didn't finish in time!\n"); | |
3925 | err = -ETIME; | |
3926 | goto Error; | |
3927 | } | |
3928 | } | |
3929 | ||
3930 | /* Delay for last bit. This delay is absolutely necessary, because | |
3931 | DIO_Serial_IO_In_Progress_St goes high one bit too early. */ | |
3932 | comedi_udelay((devpriv->serial_interval_ns + 999) / 1000); | |
3933 | ||
3934 | if (data_in != NULL) { | |
3935 | *data_in = devpriv->stc_readw(dev, DIO_Serial_Input_Register); | |
3936 | #ifdef DEBUG_DIO | |
3937 | rt_printk("ni_serial_hw_readwrite8: inputted 0x%x\n", *data_in); | |
3938 | #endif | |
3939 | } | |
3940 | ||
3941 | Error: | |
3942 | devpriv->stc_writew(dev, devpriv->dio_control, DIO_Control_Register); | |
3943 | ||
3944 | return err; | |
3945 | } | |
3946 | ||
da91b269 | 3947 | static int ni_serial_sw_readwrite8(struct comedi_device *dev, struct comedi_subdevice *s, |
03aef4b6 DS |
3948 | unsigned char data_out, unsigned char *data_in) |
3949 | { | |
3950 | unsigned char mask, input = 0; | |
3951 | ||
3952 | #ifdef DEBUG_DIO | |
3953 | rt_printk("ni_serial_sw_readwrite8: outputting 0x%x\n", data_out); | |
3954 | #endif | |
3955 | ||
3956 | /* Wait for one bit before transfer */ | |
3957 | comedi_udelay((devpriv->serial_interval_ns + 999) / 1000); | |
3958 | ||
3959 | for (mask = 0x80; mask; mask >>= 1) { | |
3960 | /* Output current bit; note that we cannot touch s->state | |
3961 | because it is a per-subdevice field, and serial is | |
3962 | a separate subdevice from DIO. */ | |
3963 | devpriv->dio_output &= ~DIO_SDOUT; | |
3964 | if (data_out & mask) { | |
3965 | devpriv->dio_output |= DIO_SDOUT; | |
3966 | } | |
3967 | devpriv->stc_writew(dev, devpriv->dio_output, | |
3968 | DIO_Output_Register); | |
3969 | ||
3970 | /* Assert SDCLK (active low, inverted), wait for half of | |
3971 | the delay, deassert SDCLK, and wait for the other half. */ | |
3972 | devpriv->dio_control |= DIO_Software_Serial_Control; | |
3973 | devpriv->stc_writew(dev, devpriv->dio_control, | |
3974 | DIO_Control_Register); | |
3975 | ||
3976 | comedi_udelay((devpriv->serial_interval_ns + 999) / 2000); | |
3977 | ||
3978 | devpriv->dio_control &= ~DIO_Software_Serial_Control; | |
3979 | devpriv->stc_writew(dev, devpriv->dio_control, | |
3980 | DIO_Control_Register); | |
3981 | ||
3982 | comedi_udelay((devpriv->serial_interval_ns + 999) / 2000); | |
3983 | ||
3984 | /* Input current bit */ | |
3985 | if (devpriv->stc_readw(dev, | |
3986 | DIO_Parallel_Input_Register) & DIO_SDIN) { | |
3987 | /* rt_printk("DIO_P_I_R: 0x%x\n", devpriv->stc_readw(dev, DIO_Parallel_Input_Register)); */ | |
3988 | input |= mask; | |
3989 | } | |
3990 | } | |
3991 | #ifdef DEBUG_DIO | |
3992 | rt_printk("ni_serial_sw_readwrite8: inputted 0x%x\n", input); | |
3993 | #endif | |
3994 | if (data_in) | |
3995 | *data_in = input; | |
3996 | ||
3997 | return 0; | |
3998 | } | |
3999 | ||
da91b269 | 4000 | static void mio_common_detach(struct comedi_device *dev) |
03aef4b6 DS |
4001 | { |
4002 | if (dev->private) { | |
4003 | if (devpriv->counter_dev) { | |
4004 | ni_gpct_device_destroy(devpriv->counter_dev); | |
4005 | } | |
4006 | } | |
4007 | if (dev->subdevices && boardtype.has_8255) | |
4008 | subdev_8255_cleanup(dev, dev->subdevices + NI_8255_DIO_SUBDEV); | |
4009 | } | |
4010 | ||
da91b269 | 4011 | static void init_ao_67xx(struct comedi_device *dev, struct comedi_subdevice *s) |
03aef4b6 DS |
4012 | { |
4013 | int i; | |
4014 | ||
4015 | for (i = 0; i < s->n_chan; i++) | |
4016 | { | |
4017 | ni_ao_win_outw(dev, AO_Channel(i) | 0x0, | |
4018 | AO_Configuration_2_67xx); | |
4019 | } | |
4020 | ao_win_out(0x0, AO_Later_Single_Point_Updates); | |
4021 | } | |
4022 | ||
4023 | static unsigned ni_gpct_to_stc_register(enum ni_gpct_register reg) | |
4024 | { | |
4025 | unsigned stc_register; | |
4026 | switch (reg) { | |
4027 | case NITIO_G0_Autoincrement_Reg: | |
4028 | stc_register = G_Autoincrement_Register(0); | |
4029 | break; | |
4030 | case NITIO_G1_Autoincrement_Reg: | |
4031 | stc_register = G_Autoincrement_Register(1); | |
4032 | break; | |
4033 | case NITIO_G0_Command_Reg: | |
4034 | stc_register = G_Command_Register(0); | |
4035 | break; | |
4036 | case NITIO_G1_Command_Reg: | |
4037 | stc_register = G_Command_Register(1); | |
4038 | break; | |
4039 | case NITIO_G0_HW_Save_Reg: | |
4040 | stc_register = G_HW_Save_Register(0); | |
4041 | break; | |
4042 | case NITIO_G1_HW_Save_Reg: | |
4043 | stc_register = G_HW_Save_Register(1); | |
4044 | break; | |
4045 | case NITIO_G0_SW_Save_Reg: | |
4046 | stc_register = G_Save_Register(0); | |
4047 | break; | |
4048 | case NITIO_G1_SW_Save_Reg: | |
4049 | stc_register = G_Save_Register(1); | |
4050 | break; | |
4051 | case NITIO_G0_Mode_Reg: | |
4052 | stc_register = G_Mode_Register(0); | |
4053 | break; | |
4054 | case NITIO_G1_Mode_Reg: | |
4055 | stc_register = G_Mode_Register(1); | |
4056 | break; | |
4057 | case NITIO_G0_LoadA_Reg: | |
4058 | stc_register = G_Load_A_Register(0); | |
4059 | break; | |
4060 | case NITIO_G1_LoadA_Reg: | |
4061 | stc_register = G_Load_A_Register(1); | |
4062 | break; | |
4063 | case NITIO_G0_LoadB_Reg: | |
4064 | stc_register = G_Load_B_Register(0); | |
4065 | break; | |
4066 | case NITIO_G1_LoadB_Reg: | |
4067 | stc_register = G_Load_B_Register(1); | |
4068 | break; | |
4069 | case NITIO_G0_Input_Select_Reg: | |
4070 | stc_register = G_Input_Select_Register(0); | |
4071 | break; | |
4072 | case NITIO_G1_Input_Select_Reg: | |
4073 | stc_register = G_Input_Select_Register(1); | |
4074 | break; | |
4075 | case NITIO_G01_Status_Reg: | |
4076 | stc_register = G_Status_Register; | |
4077 | break; | |
4078 | case NITIO_G01_Joint_Reset_Reg: | |
4079 | stc_register = Joint_Reset_Register; | |
4080 | break; | |
4081 | case NITIO_G01_Joint_Status1_Reg: | |
4082 | stc_register = Joint_Status_1_Register; | |
4083 | break; | |
4084 | case NITIO_G01_Joint_Status2_Reg: | |
4085 | stc_register = Joint_Status_2_Register; | |
4086 | break; | |
4087 | case NITIO_G0_Interrupt_Acknowledge_Reg: | |
4088 | stc_register = Interrupt_A_Ack_Register; | |
4089 | break; | |
4090 | case NITIO_G1_Interrupt_Acknowledge_Reg: | |
4091 | stc_register = Interrupt_B_Ack_Register; | |
4092 | break; | |
4093 | case NITIO_G0_Status_Reg: | |
4094 | stc_register = AI_Status_1_Register; | |
4095 | break; | |
4096 | case NITIO_G1_Status_Reg: | |
4097 | stc_register = AO_Status_1_Register; | |
4098 | break; | |
4099 | case NITIO_G0_Interrupt_Enable_Reg: | |
4100 | stc_register = Interrupt_A_Enable_Register; | |
4101 | break; | |
4102 | case NITIO_G1_Interrupt_Enable_Reg: | |
4103 | stc_register = Interrupt_B_Enable_Register; | |
4104 | break; | |
4105 | default: | |
4106 | rt_printk("%s: unhandled register 0x%x in switch.\n", | |
ddcb01d4 | 4107 | __func__, reg); |
03aef4b6 DS |
4108 | BUG(); |
4109 | return 0; | |
4110 | break; | |
4111 | } | |
4112 | return stc_register; | |
4113 | } | |
4114 | ||
4115 | static void ni_gpct_write_register(struct ni_gpct *counter, unsigned bits, | |
4116 | enum ni_gpct_register reg) | |
4117 | { | |
71b5f4f1 | 4118 | struct comedi_device *dev = counter->counter_dev->dev; |
03aef4b6 DS |
4119 | unsigned stc_register; |
4120 | /* bits in the join reset register which are relevant to counters */ | |
4121 | static const unsigned gpct_joint_reset_mask = G0_Reset | G1_Reset; | |
4122 | static const unsigned gpct_interrupt_a_enable_mask = | |
4123 | G0_Gate_Interrupt_Enable | G0_TC_Interrupt_Enable; | |
4124 | static const unsigned gpct_interrupt_b_enable_mask = | |
4125 | G1_Gate_Interrupt_Enable | G1_TC_Interrupt_Enable; | |
4126 | ||
4127 | switch (reg) { | |
4128 | /* m-series-only registers */ | |
4129 | case NITIO_G0_Counting_Mode_Reg: | |
4130 | ni_writew(bits, M_Offset_G0_Counting_Mode); | |
4131 | break; | |
4132 | case NITIO_G1_Counting_Mode_Reg: | |
4133 | ni_writew(bits, M_Offset_G1_Counting_Mode); | |
4134 | break; | |
4135 | case NITIO_G0_Second_Gate_Reg: | |
4136 | ni_writew(bits, M_Offset_G0_Second_Gate); | |
4137 | break; | |
4138 | case NITIO_G1_Second_Gate_Reg: | |
4139 | ni_writew(bits, M_Offset_G1_Second_Gate); | |
4140 | break; | |
4141 | case NITIO_G0_DMA_Config_Reg: | |
4142 | ni_writew(bits, M_Offset_G0_DMA_Config); | |
4143 | break; | |
4144 | case NITIO_G1_DMA_Config_Reg: | |
4145 | ni_writew(bits, M_Offset_G1_DMA_Config); | |
4146 | break; | |
4147 | case NITIO_G0_ABZ_Reg: | |
4148 | ni_writew(bits, M_Offset_G0_MSeries_ABZ); | |
4149 | break; | |
4150 | case NITIO_G1_ABZ_Reg: | |
4151 | ni_writew(bits, M_Offset_G1_MSeries_ABZ); | |
4152 | break; | |
4153 | ||
4154 | /* 32 bit registers */ | |
4155 | case NITIO_G0_LoadA_Reg: | |
4156 | case NITIO_G1_LoadA_Reg: | |
4157 | case NITIO_G0_LoadB_Reg: | |
4158 | case NITIO_G1_LoadB_Reg: | |
4159 | stc_register = ni_gpct_to_stc_register(reg); | |
4160 | devpriv->stc_writel(dev, bits, stc_register); | |
4161 | break; | |
4162 | ||
4163 | /* 16 bit registers */ | |
4164 | case NITIO_G0_Interrupt_Enable_Reg: | |
4165 | BUG_ON(bits & ~gpct_interrupt_a_enable_mask); | |
4166 | ni_set_bitfield(dev, Interrupt_A_Enable_Register, | |
4167 | gpct_interrupt_a_enable_mask, bits); | |
4168 | break; | |
4169 | case NITIO_G1_Interrupt_Enable_Reg: | |
4170 | BUG_ON(bits & ~gpct_interrupt_b_enable_mask); | |
4171 | ni_set_bitfield(dev, Interrupt_B_Enable_Register, | |
4172 | gpct_interrupt_b_enable_mask, bits); | |
4173 | break; | |
4174 | case NITIO_G01_Joint_Reset_Reg: | |
4175 | BUG_ON(bits & ~gpct_joint_reset_mask); | |
4176 | /* fall-through */ | |
4177 | default: | |
4178 | stc_register = ni_gpct_to_stc_register(reg); | |
4179 | devpriv->stc_writew(dev, bits, stc_register); | |
4180 | } | |
4181 | } | |
4182 | ||
4183 | static unsigned ni_gpct_read_register(struct ni_gpct *counter, | |
4184 | enum ni_gpct_register reg) | |
4185 | { | |
71b5f4f1 | 4186 | struct comedi_device *dev = counter->counter_dev->dev; |
03aef4b6 DS |
4187 | unsigned stc_register; |
4188 | switch (reg) { | |
4189 | /* m-series only registers */ | |
4190 | case NITIO_G0_DMA_Status_Reg: | |
4191 | return ni_readw(M_Offset_G0_DMA_Status); | |
4192 | break; | |
4193 | case NITIO_G1_DMA_Status_Reg: | |
4194 | return ni_readw(M_Offset_G1_DMA_Status); | |
4195 | break; | |
4196 | ||
4197 | /* 32 bit registers */ | |
4198 | case NITIO_G0_HW_Save_Reg: | |
4199 | case NITIO_G1_HW_Save_Reg: | |
4200 | case NITIO_G0_SW_Save_Reg: | |
4201 | case NITIO_G1_SW_Save_Reg: | |
4202 | stc_register = ni_gpct_to_stc_register(reg); | |
4203 | return devpriv->stc_readl(dev, stc_register); | |
4204 | break; | |
4205 | ||
4206 | /* 16 bit registers */ | |
4207 | default: | |
4208 | stc_register = ni_gpct_to_stc_register(reg); | |
4209 | return devpriv->stc_readw(dev, stc_register); | |
4210 | break; | |
4211 | } | |
4212 | return 0; | |
4213 | } | |
4214 | ||
da91b269 BP |
4215 | static int ni_freq_out_insn_read(struct comedi_device *dev, |
4216 | struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
4217 | { |
4218 | data[0] = devpriv->clock_and_fout & FOUT_Divider_mask; | |
4219 | return 1; | |
4220 | } | |
4221 | ||
da91b269 BP |
4222 | static int ni_freq_out_insn_write(struct comedi_device *dev, |
4223 | struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
4224 | { |
4225 | devpriv->clock_and_fout &= ~FOUT_Enable; | |
4226 | devpriv->stc_writew(dev, devpriv->clock_and_fout, | |
4227 | Clock_and_FOUT_Register); | |
4228 | devpriv->clock_and_fout &= ~FOUT_Divider_mask; | |
4229 | devpriv->clock_and_fout |= FOUT_Divider(data[0]); | |
4230 | devpriv->clock_and_fout |= FOUT_Enable; | |
4231 | devpriv->stc_writew(dev, devpriv->clock_and_fout, | |
4232 | Clock_and_FOUT_Register); | |
4233 | return insn->n; | |
4234 | } | |
4235 | ||
da91b269 | 4236 | static int ni_set_freq_out_clock(struct comedi_device *dev, unsigned int clock_source) |
03aef4b6 DS |
4237 | { |
4238 | switch (clock_source) { | |
4239 | case NI_FREQ_OUT_TIMEBASE_1_DIV_2_CLOCK_SRC: | |
4240 | devpriv->clock_and_fout &= ~FOUT_Timebase_Select; | |
4241 | break; | |
4242 | case NI_FREQ_OUT_TIMEBASE_2_CLOCK_SRC: | |
4243 | devpriv->clock_and_fout |= FOUT_Timebase_Select; | |
4244 | break; | |
4245 | default: | |
4246 | return -EINVAL; | |
4247 | } | |
4248 | devpriv->stc_writew(dev, devpriv->clock_and_fout, | |
4249 | Clock_and_FOUT_Register); | |
4250 | return 3; | |
4251 | } | |
4252 | ||
da91b269 BP |
4253 | static void ni_get_freq_out_clock(struct comedi_device *dev, unsigned int *clock_source, |
4254 | unsigned int *clock_period_ns) | |
03aef4b6 DS |
4255 | { |
4256 | if (devpriv->clock_and_fout & FOUT_Timebase_Select) { | |
4257 | *clock_source = NI_FREQ_OUT_TIMEBASE_2_CLOCK_SRC; | |
4258 | *clock_period_ns = TIMEBASE_2_NS; | |
4259 | } else { | |
4260 | *clock_source = NI_FREQ_OUT_TIMEBASE_1_DIV_2_CLOCK_SRC; | |
4261 | *clock_period_ns = TIMEBASE_1_NS * 2; | |
4262 | } | |
4263 | } | |
4264 | ||
da91b269 BP |
4265 | static int ni_freq_out_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, |
4266 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
4267 | { |
4268 | switch (data[0]) { | |
4269 | case INSN_CONFIG_SET_CLOCK_SRC: | |
4270 | return ni_set_freq_out_clock(dev, data[1]); | |
4271 | break; | |
4272 | case INSN_CONFIG_GET_CLOCK_SRC: | |
4273 | ni_get_freq_out_clock(dev, &data[1], &data[2]); | |
4274 | return 3; | |
4275 | default: | |
4276 | break; | |
4277 | } | |
4278 | return -EINVAL; | |
4279 | } | |
4280 | ||
da91b269 | 4281 | static int ni_alloc_private(struct comedi_device *dev) |
03aef4b6 DS |
4282 | { |
4283 | int ret; | |
4284 | ||
3301cc76 | 4285 | ret = alloc_private(dev, sizeof(struct ni_private)); |
03aef4b6 DS |
4286 | if (ret < 0) |
4287 | return ret; | |
4288 | ||
4289 | spin_lock_init(&devpriv->window_lock); | |
4290 | spin_lock_init(&devpriv->soft_reg_copy_lock); | |
4291 | spin_lock_init(&devpriv->mite_channel_lock); | |
4292 | ||
4293 | return 0; | |
4294 | }; | |
4295 | ||
da91b269 | 4296 | static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it) |
03aef4b6 | 4297 | { |
34c43922 | 4298 | struct comedi_subdevice *s; |
03aef4b6 DS |
4299 | unsigned j; |
4300 | enum ni_gpct_variant counter_variant; | |
4301 | ||
4302 | if (boardtype.n_aochan > MAX_N_AO_CHAN) { | |
4303 | printk("bug! boardtype.n_aochan > MAX_N_AO_CHAN\n"); | |
4304 | return -EINVAL; | |
4305 | } | |
4306 | ||
4307 | if (alloc_subdevices(dev, NI_NUM_SUBDEVICES) < 0) | |
4308 | return -ENOMEM; | |
4309 | ||
4310 | /* analog input subdevice */ | |
4311 | ||
4312 | s = dev->subdevices + NI_AI_SUBDEV; | |
4313 | dev->read_subdev = s; | |
4314 | if (boardtype.n_adchan) { | |
4315 | s->type = COMEDI_SUBD_AI; | |
4316 | s->subdev_flags = | |
4317 | SDF_READABLE | SDF_DIFF | SDF_DITHER | SDF_CMD_READ; | |
4318 | if (boardtype.reg_type != ni_reg_611x) | |
4319 | s->subdev_flags |= SDF_GROUND | SDF_COMMON | SDF_OTHER; | |
4320 | if (boardtype.adbits > 16) | |
4321 | s->subdev_flags |= SDF_LSAMPL; | |
4322 | if (boardtype.reg_type & ni_reg_m_series_mask) | |
4323 | s->subdev_flags |= SDF_SOFT_CALIBRATED; | |
4324 | s->n_chan = boardtype.n_adchan; | |
4325 | s->len_chanlist = 512; | |
4326 | s->maxdata = (1 << boardtype.adbits) - 1; | |
4327 | s->range_table = ni_range_lkup[boardtype.gainlkup]; | |
4328 | s->insn_read = &ni_ai_insn_read; | |
4329 | s->insn_config = &ni_ai_insn_config; | |
4330 | s->do_cmdtest = &ni_ai_cmdtest; | |
4331 | s->do_cmd = &ni_ai_cmd; | |
4332 | s->cancel = &ni_ai_reset; | |
4333 | s->poll = &ni_ai_poll; | |
4334 | s->munge = &ni_ai_munge; | |
4335 | #ifdef PCIDMA | |
4336 | s->async_dma_dir = DMA_FROM_DEVICE; | |
4337 | #endif | |
4338 | } else { | |
4339 | s->type = COMEDI_SUBD_UNUSED; | |
4340 | } | |
4341 | ||
4342 | /* analog output subdevice */ | |
4343 | ||
4344 | s = dev->subdevices + NI_AO_SUBDEV; | |
4345 | if (boardtype.n_aochan) { | |
4346 | s->type = COMEDI_SUBD_AO; | |
4347 | s->subdev_flags = SDF_WRITABLE | SDF_DEGLITCH | SDF_GROUND; | |
4348 | if (boardtype.reg_type & ni_reg_m_series_mask) | |
4349 | s->subdev_flags |= SDF_SOFT_CALIBRATED; | |
4350 | s->n_chan = boardtype.n_aochan; | |
4351 | s->maxdata = (1 << boardtype.aobits) - 1; | |
4352 | s->range_table = boardtype.ao_range_table; | |
4353 | s->insn_read = &ni_ao_insn_read; | |
4354 | if (boardtype.reg_type & ni_reg_6xxx_mask) { | |
4355 | s->insn_write = &ni_ao_insn_write_671x; | |
4356 | } else { | |
4357 | s->insn_write = &ni_ao_insn_write; | |
4358 | } | |
4359 | s->insn_config = &ni_ao_insn_config; | |
4360 | #ifdef PCIDMA | |
4361 | if (boardtype.n_aochan) { | |
4362 | s->async_dma_dir = DMA_TO_DEVICE; | |
4363 | #else | |
4364 | if (boardtype.ao_fifo_depth) { | |
4365 | #endif | |
4366 | dev->write_subdev = s; | |
4367 | s->subdev_flags |= SDF_CMD_WRITE; | |
4368 | s->do_cmd = &ni_ao_cmd; | |
4369 | s->do_cmdtest = &ni_ao_cmdtest; | |
4370 | s->len_chanlist = boardtype.n_aochan; | |
4371 | if ((boardtype.reg_type & ni_reg_m_series_mask) == 0) | |
4372 | s->munge = ni_ao_munge; | |
4373 | } | |
4374 | s->cancel = &ni_ao_reset; | |
4375 | } else { | |
4376 | s->type = COMEDI_SUBD_UNUSED; | |
4377 | } | |
4378 | if ((boardtype.reg_type & ni_reg_67xx_mask)) | |
4379 | init_ao_67xx(dev, s); | |
4380 | ||
4381 | /* digital i/o subdevice */ | |
4382 | ||
4383 | s = dev->subdevices + NI_DIO_SUBDEV; | |
4384 | s->type = COMEDI_SUBD_DIO; | |
4385 | s->subdev_flags = SDF_WRITABLE | SDF_READABLE; | |
4386 | s->maxdata = 1; | |
4387 | s->io_bits = 0; /* all bits input */ | |
4388 | s->range_table = &range_digital; | |
4389 | s->n_chan = boardtype.num_p0_dio_channels; | |
4390 | if (boardtype.reg_type & ni_reg_m_series_mask) { | |
4391 | s->subdev_flags |= | |
4392 | SDF_LSAMPL | SDF_CMD_WRITE /* | SDF_CMD_READ */ ; | |
4393 | s->insn_bits = &ni_m_series_dio_insn_bits; | |
4394 | s->insn_config = &ni_m_series_dio_insn_config; | |
4395 | s->do_cmd = &ni_cdio_cmd; | |
4396 | s->do_cmdtest = &ni_cdio_cmdtest; | |
4397 | s->cancel = &ni_cdio_cancel; | |
4398 | s->async_dma_dir = DMA_BIDIRECTIONAL; | |
4399 | s->len_chanlist = s->n_chan; | |
4400 | ||
4401 | ni_writel(CDO_Reset_Bit | CDI_Reset_Bit, M_Offset_CDIO_Command); | |
4402 | ni_writel(s->io_bits, M_Offset_DIO_Direction); | |
4403 | } else { | |
4404 | s->insn_bits = &ni_dio_insn_bits; | |
4405 | s->insn_config = &ni_dio_insn_config; | |
4406 | devpriv->dio_control = DIO_Pins_Dir(s->io_bits); | |
4407 | ni_writew(devpriv->dio_control, DIO_Control_Register); | |
4408 | } | |
4409 | ||
4410 | /* 8255 device */ | |
4411 | s = dev->subdevices + NI_8255_DIO_SUBDEV; | |
4412 | if (boardtype.has_8255) { | |
4413 | subdev_8255_init(dev, s, ni_8255_callback, (unsigned long)dev); | |
4414 | } else { | |
4415 | s->type = COMEDI_SUBD_UNUSED; | |
4416 | } | |
4417 | ||
4418 | /* formerly general purpose counter/timer device, but no longer used */ | |
4419 | s = dev->subdevices + NI_UNUSED_SUBDEV; | |
4420 | s->type = COMEDI_SUBD_UNUSED; | |
4421 | ||
4422 | /* calibration subdevice -- ai and ao */ | |
4423 | s = dev->subdevices + NI_CALIBRATION_SUBDEV; | |
4424 | s->type = COMEDI_SUBD_CALIB; | |
4425 | if (boardtype.reg_type & ni_reg_m_series_mask) { | |
2696fb57 | 4426 | /* internal PWM analog output used for AI nonlinearity calibration */ |
03aef4b6 DS |
4427 | s->subdev_flags = SDF_INTERNAL; |
4428 | s->insn_config = &ni_m_series_pwm_config; | |
4429 | s->n_chan = 1; | |
4430 | s->maxdata = 0; | |
4431 | ni_writel(0x0, M_Offset_Cal_PWM); | |
4432 | } else if (boardtype.reg_type == ni_reg_6143) { | |
2696fb57 | 4433 | /* internal PWM analog output used for AI nonlinearity calibration */ |
03aef4b6 DS |
4434 | s->subdev_flags = SDF_INTERNAL; |
4435 | s->insn_config = &ni_6143_pwm_config; | |
4436 | s->n_chan = 1; | |
4437 | s->maxdata = 0; | |
4438 | } else { | |
4439 | s->subdev_flags = SDF_WRITABLE | SDF_INTERNAL; | |
4440 | s->insn_read = &ni_calib_insn_read; | |
4441 | s->insn_write = &ni_calib_insn_write; | |
4442 | caldac_setup(dev, s); | |
4443 | } | |
4444 | ||
4445 | /* EEPROM */ | |
4446 | s = dev->subdevices + NI_EEPROM_SUBDEV; | |
4447 | s->type = COMEDI_SUBD_MEMORY; | |
4448 | s->subdev_flags = SDF_READABLE | SDF_INTERNAL; | |
4449 | s->maxdata = 0xff; | |
4450 | if (boardtype.reg_type & ni_reg_m_series_mask) { | |
4451 | s->n_chan = M_SERIES_EEPROM_SIZE; | |
4452 | s->insn_read = &ni_m_series_eeprom_insn_read; | |
4453 | } else { | |
4454 | s->n_chan = 512; | |
4455 | s->insn_read = &ni_eeprom_insn_read; | |
4456 | } | |
4457 | ||
4458 | /* PFI */ | |
4459 | s = dev->subdevices + NI_PFI_DIO_SUBDEV; | |
4460 | s->type = COMEDI_SUBD_DIO; | |
4461 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; | |
4462 | if (boardtype.reg_type & ni_reg_m_series_mask) { | |
4463 | unsigned i; | |
4464 | s->n_chan = 16; | |
4465 | ni_writew(s->state, M_Offset_PFI_DO); | |
4466 | for (i = 0; i < NUM_PFI_OUTPUT_SELECT_REGS; ++i) { | |
4467 | ni_writew(devpriv->pfi_output_select_reg[i], | |
4468 | M_Offset_PFI_Output_Select(i + 1)); | |
4469 | } | |
4470 | } else { | |
4471 | s->n_chan = 10; | |
4472 | } | |
4473 | s->maxdata = 1; | |
4474 | if (boardtype.reg_type & ni_reg_m_series_mask) { | |
4475 | s->insn_bits = &ni_pfi_insn_bits; | |
4476 | } | |
4477 | s->insn_config = &ni_pfi_insn_config; | |
4478 | ni_set_bits(dev, IO_Bidirection_Pin_Register, ~0, 0); | |
4479 | ||
4480 | /* cs5529 calibration adc */ | |
4481 | s = dev->subdevices + NI_CS5529_CALIBRATION_SUBDEV; | |
4482 | if (boardtype.reg_type & ni_reg_67xx_mask) { | |
4483 | s->type = COMEDI_SUBD_AI; | |
4484 | s->subdev_flags = SDF_READABLE | SDF_DIFF | SDF_INTERNAL; | |
2696fb57 | 4485 | /* one channel for each analog output channel */ |
03aef4b6 DS |
4486 | s->n_chan = boardtype.n_aochan; |
4487 | s->maxdata = (1 << 16) - 1; | |
4488 | s->range_table = &range_unknown; /* XXX */ | |
4489 | s->insn_read = cs5529_ai_insn_read; | |
4490 | s->insn_config = NULL; | |
4491 | init_cs5529(dev); | |
4492 | } else { | |
4493 | s->type = COMEDI_SUBD_UNUSED; | |
4494 | } | |
4495 | ||
4496 | /* Serial */ | |
4497 | s = dev->subdevices + NI_SERIAL_SUBDEV; | |
4498 | s->type = COMEDI_SUBD_SERIAL; | |
4499 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; | |
4500 | s->n_chan = 1; | |
4501 | s->maxdata = 0xff; | |
4502 | s->insn_config = ni_serial_insn_config; | |
4503 | devpriv->serial_interval_ns = 0; | |
4504 | devpriv->serial_hw_mode = 0; | |
4505 | ||
4506 | /* RTSI */ | |
4507 | s = dev->subdevices + NI_RTSI_SUBDEV; | |
4508 | s->type = COMEDI_SUBD_DIO; | |
4509 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; | |
4510 | s->n_chan = 8; | |
4511 | s->maxdata = 1; | |
4512 | s->insn_bits = ni_rtsi_insn_bits; | |
4513 | s->insn_config = ni_rtsi_insn_config; | |
4514 | ni_rtsi_init(dev); | |
4515 | ||
4516 | if (boardtype.reg_type & ni_reg_m_series_mask) { | |
4517 | counter_variant = ni_gpct_variant_m_series; | |
4518 | } else { | |
4519 | counter_variant = ni_gpct_variant_e_series; | |
4520 | } | |
4521 | devpriv->counter_dev = ni_gpct_device_construct(dev, | |
4522 | &ni_gpct_write_register, &ni_gpct_read_register, | |
4523 | counter_variant, NUM_GPCT); | |
4524 | /* General purpose counters */ | |
4525 | for (j = 0; j < NUM_GPCT; ++j) { | |
4526 | s = dev->subdevices + NI_GPCT_SUBDEV(j); | |
4527 | s->type = COMEDI_SUBD_COUNTER; | |
4528 | s->subdev_flags = | |
4529 | SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL | SDF_CMD_READ | |
4530 | /* | SDF_CMD_WRITE */ ; | |
4531 | s->n_chan = 3; | |
4532 | if (boardtype.reg_type & ni_reg_m_series_mask) | |
4533 | s->maxdata = 0xffffffff; | |
4534 | else | |
4535 | s->maxdata = 0xffffff; | |
4536 | s->insn_read = &ni_gpct_insn_read; | |
4537 | s->insn_write = &ni_gpct_insn_write; | |
4538 | s->insn_config = &ni_gpct_insn_config; | |
4539 | s->do_cmd = &ni_gpct_cmd; | |
4540 | s->len_chanlist = 1; | |
4541 | s->do_cmdtest = &ni_gpct_cmdtest; | |
4542 | s->cancel = &ni_gpct_cancel; | |
4543 | s->async_dma_dir = DMA_BIDIRECTIONAL; | |
4544 | s->private = &devpriv->counter_dev->counters[j]; | |
4545 | ||
4546 | devpriv->counter_dev->counters[j].chip_index = 0; | |
4547 | devpriv->counter_dev->counters[j].counter_index = j; | |
4548 | ni_tio_init_counter(&devpriv->counter_dev->counters[j]); | |
4549 | } | |
4550 | ||
4551 | /* Frequency output */ | |
4552 | s = dev->subdevices + NI_FREQ_OUT_SUBDEV; | |
4553 | s->type = COMEDI_SUBD_COUNTER; | |
4554 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE; | |
4555 | s->n_chan = 1; | |
4556 | s->maxdata = 0xf; | |
4557 | s->insn_read = &ni_freq_out_insn_read; | |
4558 | s->insn_write = &ni_freq_out_insn_write; | |
4559 | s->insn_config = &ni_freq_out_insn_config; | |
4560 | ||
4561 | /* ai configuration */ | |
4562 | ni_ai_reset(dev, dev->subdevices + NI_AI_SUBDEV); | |
4563 | if ((boardtype.reg_type & ni_reg_6xxx_mask) == 0) { | |
2696fb57 | 4564 | /* BEAM is this needed for PCI-6143 ?? */ |
03aef4b6 DS |
4565 | devpriv->clock_and_fout = |
4566 | Slow_Internal_Time_Divide_By_2 | | |
4567 | Slow_Internal_Timebase | | |
4568 | Clock_To_Board_Divide_By_2 | | |
4569 | Clock_To_Board | | |
4570 | AI_Output_Divide_By_2 | AO_Output_Divide_By_2; | |
4571 | } else { | |
4572 | devpriv->clock_and_fout = | |
4573 | Slow_Internal_Time_Divide_By_2 | | |
4574 | Slow_Internal_Timebase | | |
4575 | Clock_To_Board_Divide_By_2 | Clock_To_Board; | |
4576 | } | |
4577 | devpriv->stc_writew(dev, devpriv->clock_and_fout, | |
4578 | Clock_and_FOUT_Register); | |
4579 | ||
4580 | /* analog output configuration */ | |
4581 | ni_ao_reset(dev, dev->subdevices + NI_AO_SUBDEV); | |
4582 | ||
4583 | if (dev->irq) { | |
4584 | devpriv->stc_writew(dev, | |
4585 | (IRQ_POLARITY ? Interrupt_Output_Polarity : 0) | | |
4586 | (Interrupt_Output_On_3_Pins & 0) | Interrupt_A_Enable | | |
4587 | Interrupt_B_Enable | | |
4588 | Interrupt_A_Output_Select(interrupt_pin(dev-> | |
4589 | irq)) | | |
4590 | Interrupt_B_Output_Select(interrupt_pin(dev->irq)), | |
4591 | Interrupt_Control_Register); | |
4592 | } | |
4593 | ||
4594 | /* DMA setup */ | |
4595 | ni_writeb(devpriv->ai_ao_select_reg, AI_AO_Select); | |
4596 | ni_writeb(devpriv->g0_g1_select_reg, G0_G1_Select); | |
4597 | ||
4598 | if (boardtype.reg_type & ni_reg_6xxx_mask) { | |
4599 | ni_writeb(0, Magic_611x); | |
4600 | } else if (boardtype.reg_type & ni_reg_m_series_mask) { | |
4601 | int channel; | |
4602 | for (channel = 0; channel < boardtype.n_aochan; ++channel) { | |
4603 | ni_writeb(0xf, M_Offset_AO_Waveform_Order(channel)); | |
4604 | ni_writeb(0x0, | |
4605 | M_Offset_AO_Reference_Attenuation(channel)); | |
4606 | } | |
4607 | ni_writeb(0x0, M_Offset_AO_Calibration); | |
4608 | } | |
4609 | ||
4610 | printk("\n"); | |
4611 | return 0; | |
4612 | } | |
4613 | ||
4614 | static int ni_8255_callback(int dir, int port, int data, unsigned long arg) | |
4615 | { | |
71b5f4f1 | 4616 | struct comedi_device *dev = (struct comedi_device *) arg; |
03aef4b6 DS |
4617 | |
4618 | if (dir) { | |
4619 | ni_writeb(data, Port_A + 2 * port); | |
4620 | return 0; | |
4621 | } else { | |
4622 | return ni_readb(Port_A + 2 * port); | |
4623 | } | |
4624 | } | |
4625 | ||
4626 | /* | |
4627 | presents the EEPROM as a subdevice | |
4628 | */ | |
4629 | ||
da91b269 BP |
4630 | static int ni_eeprom_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, |
4631 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
4632 | { |
4633 | data[0] = ni_read_eeprom(dev, CR_CHAN(insn->chanspec)); | |
4634 | ||
4635 | return 1; | |
4636 | } | |
4637 | ||
4638 | /* | |
4639 | reads bytes out of eeprom | |
4640 | */ | |
4641 | ||
da91b269 | 4642 | static int ni_read_eeprom(struct comedi_device *dev, int addr) |
03aef4b6 DS |
4643 | { |
4644 | int bit; | |
4645 | int bitstring; | |
4646 | ||
4647 | bitstring = 0x0300 | ((addr & 0x100) << 3) | (addr & 0xff); | |
4648 | ni_writeb(0x04, Serial_Command); | |
4649 | for (bit = 0x8000; bit; bit >>= 1) { | |
4650 | ni_writeb(0x04 | ((bit & bitstring) ? 0x02 : 0), | |
4651 | Serial_Command); | |
4652 | ni_writeb(0x05 | ((bit & bitstring) ? 0x02 : 0), | |
4653 | Serial_Command); | |
4654 | } | |
4655 | bitstring = 0; | |
4656 | for (bit = 0x80; bit; bit >>= 1) { | |
4657 | ni_writeb(0x04, Serial_Command); | |
4658 | ni_writeb(0x05, Serial_Command); | |
4659 | bitstring |= ((ni_readb(XXX_Status) & PROMOUT) ? bit : 0); | |
4660 | } | |
4661 | ni_writeb(0x00, Serial_Command); | |
4662 | ||
4663 | return bitstring; | |
4664 | } | |
4665 | ||
da91b269 BP |
4666 | static int ni_m_series_eeprom_insn_read(struct comedi_device *dev, |
4667 | struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
4668 | { |
4669 | data[0] = devpriv->eeprom_buffer[CR_CHAN(insn->chanspec)]; | |
4670 | ||
4671 | return 1; | |
4672 | } | |
4673 | ||
da91b269 | 4674 | static int ni_get_pwm_config(struct comedi_device *dev, unsigned int *data) |
03aef4b6 DS |
4675 | { |
4676 | data[1] = devpriv->pwm_up_count * devpriv->clock_ns; | |
4677 | data[2] = devpriv->pwm_down_count * devpriv->clock_ns; | |
4678 | return 3; | |
4679 | } | |
4680 | ||
da91b269 BP |
4681 | static int ni_m_series_pwm_config(struct comedi_device *dev, struct comedi_subdevice *s, |
4682 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
4683 | { |
4684 | unsigned up_count, down_count; | |
4685 | switch (data[0]) { | |
4686 | case INSN_CONFIG_PWM_OUTPUT: | |
4687 | switch (data[1]) { | |
4688 | case TRIG_ROUND_NEAREST: | |
4689 | up_count = | |
4690 | (data[2] + | |
4691 | devpriv->clock_ns / 2) / devpriv->clock_ns; | |
4692 | break; | |
4693 | case TRIG_ROUND_DOWN: | |
4694 | up_count = data[2] / devpriv->clock_ns; | |
4695 | break; | |
4696 | case TRIG_ROUND_UP: | |
4697 | up_count = | |
4698 | (data[2] + devpriv->clock_ns - | |
4699 | 1) / devpriv->clock_ns; | |
4700 | break; | |
4701 | default: | |
4702 | return -EINVAL; | |
4703 | break; | |
4704 | } | |
4705 | switch (data[3]) { | |
4706 | case TRIG_ROUND_NEAREST: | |
4707 | down_count = | |
4708 | (data[4] + | |
4709 | devpriv->clock_ns / 2) / devpriv->clock_ns; | |
4710 | break; | |
4711 | case TRIG_ROUND_DOWN: | |
4712 | down_count = data[4] / devpriv->clock_ns; | |
4713 | break; | |
4714 | case TRIG_ROUND_UP: | |
4715 | down_count = | |
4716 | (data[4] + devpriv->clock_ns - | |
4717 | 1) / devpriv->clock_ns; | |
4718 | break; | |
4719 | default: | |
4720 | return -EINVAL; | |
4721 | break; | |
4722 | } | |
4723 | if (up_count * devpriv->clock_ns != data[2] || | |
4724 | down_count * devpriv->clock_ns != data[4]) { | |
4725 | data[2] = up_count * devpriv->clock_ns; | |
4726 | data[4] = down_count * devpriv->clock_ns; | |
4727 | return -EAGAIN; | |
4728 | } | |
4729 | ni_writel(MSeries_Cal_PWM_High_Time_Bits(up_count) | | |
4730 | MSeries_Cal_PWM_Low_Time_Bits(down_count), | |
4731 | M_Offset_Cal_PWM); | |
4732 | devpriv->pwm_up_count = up_count; | |
4733 | devpriv->pwm_down_count = down_count; | |
4734 | return 5; | |
4735 | break; | |
4736 | case INSN_CONFIG_GET_PWM_OUTPUT: | |
4737 | return ni_get_pwm_config(dev, data); | |
4738 | break; | |
4739 | default: | |
4740 | return -EINVAL; | |
4741 | break; | |
4742 | } | |
4743 | return 0; | |
4744 | } | |
4745 | ||
da91b269 BP |
4746 | static int ni_6143_pwm_config(struct comedi_device *dev, struct comedi_subdevice *s, |
4747 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
4748 | { |
4749 | unsigned up_count, down_count; | |
4750 | switch (data[0]) { | |
4751 | case INSN_CONFIG_PWM_OUTPUT: | |
4752 | switch (data[1]) { | |
4753 | case TRIG_ROUND_NEAREST: | |
4754 | up_count = | |
4755 | (data[2] + | |
4756 | devpriv->clock_ns / 2) / devpriv->clock_ns; | |
4757 | break; | |
4758 | case TRIG_ROUND_DOWN: | |
4759 | up_count = data[2] / devpriv->clock_ns; | |
4760 | break; | |
4761 | case TRIG_ROUND_UP: | |
4762 | up_count = | |
4763 | (data[2] + devpriv->clock_ns - | |
4764 | 1) / devpriv->clock_ns; | |
4765 | break; | |
4766 | default: | |
4767 | return -EINVAL; | |
4768 | break; | |
4769 | } | |
4770 | switch (data[3]) { | |
4771 | case TRIG_ROUND_NEAREST: | |
4772 | down_count = | |
4773 | (data[4] + | |
4774 | devpriv->clock_ns / 2) / devpriv->clock_ns; | |
4775 | break; | |
4776 | case TRIG_ROUND_DOWN: | |
4777 | down_count = data[4] / devpriv->clock_ns; | |
4778 | break; | |
4779 | case TRIG_ROUND_UP: | |
4780 | down_count = | |
4781 | (data[4] + devpriv->clock_ns - | |
4782 | 1) / devpriv->clock_ns; | |
4783 | break; | |
4784 | default: | |
4785 | return -EINVAL; | |
4786 | break; | |
4787 | } | |
4788 | if (up_count * devpriv->clock_ns != data[2] || | |
4789 | down_count * devpriv->clock_ns != data[4]) { | |
4790 | data[2] = up_count * devpriv->clock_ns; | |
4791 | data[4] = down_count * devpriv->clock_ns; | |
4792 | return -EAGAIN; | |
4793 | } | |
4794 | ni_writel(up_count, Calibration_HighTime_6143); | |
4795 | devpriv->pwm_up_count = up_count; | |
4796 | ni_writel(down_count, Calibration_LowTime_6143); | |
4797 | devpriv->pwm_down_count = down_count; | |
4798 | return 5; | |
4799 | break; | |
4800 | case INSN_CONFIG_GET_PWM_OUTPUT: | |
4801 | return ni_get_pwm_config(dev, data); | |
4802 | default: | |
4803 | return -EINVAL; | |
4804 | break; | |
4805 | } | |
4806 | return 0; | |
4807 | } | |
4808 | ||
da91b269 | 4809 | static void ni_write_caldac(struct comedi_device *dev, int addr, int val); |
03aef4b6 DS |
4810 | /* |
4811 | calibration subdevice | |
4812 | */ | |
da91b269 BP |
4813 | static int ni_calib_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, |
4814 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
4815 | { |
4816 | ni_write_caldac(dev, CR_CHAN(insn->chanspec), data[0]); | |
4817 | ||
4818 | return 1; | |
4819 | } | |
4820 | ||
da91b269 BP |
4821 | static int ni_calib_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, |
4822 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
4823 | { |
4824 | data[0] = devpriv->caldacs[CR_CHAN(insn->chanspec)]; | |
4825 | ||
4826 | return 1; | |
4827 | } | |
4828 | ||
4829 | static int pack_mb88341(int addr, int val, int *bitstring); | |
4830 | static int pack_dac8800(int addr, int val, int *bitstring); | |
4831 | static int pack_dac8043(int addr, int val, int *bitstring); | |
4832 | static int pack_ad8522(int addr, int val, int *bitstring); | |
4833 | static int pack_ad8804(int addr, int val, int *bitstring); | |
4834 | static int pack_ad8842(int addr, int val, int *bitstring); | |
4835 | ||
4836 | struct caldac_struct { | |
4837 | int n_chans; | |
4838 | int n_bits; | |
4839 | int (*packbits) (int, int, int *); | |
4840 | }; | |
4841 | ||
4842 | static struct caldac_struct caldacs[] = { | |
4843 | [mb88341] = {12, 8, pack_mb88341}, | |
4844 | [dac8800] = {8, 8, pack_dac8800}, | |
4845 | [dac8043] = {1, 12, pack_dac8043}, | |
4846 | [ad8522] = {2, 12, pack_ad8522}, | |
4847 | [ad8804] = {12, 8, pack_ad8804}, | |
4848 | [ad8842] = {8, 8, pack_ad8842}, | |
4849 | [ad8804_debug] = {16, 8, pack_ad8804}, | |
4850 | }; | |
4851 | ||
da91b269 | 4852 | static void caldac_setup(struct comedi_device *dev, struct comedi_subdevice *s) |
03aef4b6 DS |
4853 | { |
4854 | int i, j; | |
4855 | int n_dacs; | |
4856 | int n_chans = 0; | |
4857 | int n_bits; | |
4858 | int diffbits = 0; | |
4859 | int type; | |
4860 | int chan; | |
4861 | ||
4862 | type = boardtype.caldac[0]; | |
4863 | if (type == caldac_none) | |
4864 | return; | |
4865 | n_bits = caldacs[type].n_bits; | |
4866 | for (i = 0; i < 3; i++) { | |
4867 | type = boardtype.caldac[i]; | |
4868 | if (type == caldac_none) | |
4869 | break; | |
4870 | if (caldacs[type].n_bits != n_bits) | |
4871 | diffbits = 1; | |
4872 | n_chans += caldacs[type].n_chans; | |
4873 | } | |
4874 | n_dacs = i; | |
4875 | s->n_chan = n_chans; | |
4876 | ||
4877 | if (diffbits) { | |
4878 | unsigned int *maxdata_list; | |
4879 | ||
4880 | if (n_chans > MAX_N_CALDACS) { | |
4881 | printk("BUG! MAX_N_CALDACS too small\n"); | |
4882 | } | |
4883 | s->maxdata_list = maxdata_list = devpriv->caldac_maxdata_list; | |
4884 | chan = 0; | |
4885 | for (i = 0; i < n_dacs; i++) { | |
4886 | type = boardtype.caldac[i]; | |
4887 | for (j = 0; j < caldacs[type].n_chans; j++) { | |
4888 | maxdata_list[chan] = | |
4889 | (1 << caldacs[type].n_bits) - 1; | |
4890 | chan++; | |
4891 | } | |
4892 | } | |
4893 | ||
4894 | for (chan = 0; chan < s->n_chan; chan++) | |
4895 | ni_write_caldac(dev, i, s->maxdata_list[i] / 2); | |
4896 | } else { | |
4897 | type = boardtype.caldac[0]; | |
4898 | s->maxdata = (1 << caldacs[type].n_bits) - 1; | |
4899 | ||
4900 | for (chan = 0; chan < s->n_chan; chan++) | |
4901 | ni_write_caldac(dev, i, s->maxdata / 2); | |
4902 | } | |
4903 | } | |
4904 | ||
da91b269 | 4905 | static void ni_write_caldac(struct comedi_device *dev, int addr, int val) |
03aef4b6 DS |
4906 | { |
4907 | unsigned int loadbit = 0, bits = 0, bit, bitstring = 0; | |
4908 | int i; | |
4909 | int type; | |
4910 | ||
2696fb57 | 4911 | /* printk("ni_write_caldac: chan=%d val=%d\n",addr,val); */ |
03aef4b6 DS |
4912 | if (devpriv->caldacs[addr] == val) |
4913 | return; | |
4914 | devpriv->caldacs[addr] = val; | |
4915 | ||
4916 | for (i = 0; i < 3; i++) { | |
4917 | type = boardtype.caldac[i]; | |
4918 | if (type == caldac_none) | |
4919 | break; | |
4920 | if (addr < caldacs[type].n_chans) { | |
4921 | bits = caldacs[type].packbits(addr, val, &bitstring); | |
4922 | loadbit = SerDacLd(i); | |
2696fb57 | 4923 | /* printk("caldac: using i=%d addr=%d %x\n",i,addr,bitstring); */ |
03aef4b6 DS |
4924 | break; |
4925 | } | |
4926 | addr -= caldacs[type].n_chans; | |
4927 | } | |
4928 | ||
4929 | for (bit = 1 << (bits - 1); bit; bit >>= 1) { | |
4930 | ni_writeb(((bit & bitstring) ? 0x02 : 0), Serial_Command); | |
4931 | comedi_udelay(1); | |
4932 | ni_writeb(1 | ((bit & bitstring) ? 0x02 : 0), Serial_Command); | |
4933 | comedi_udelay(1); | |
4934 | } | |
4935 | ni_writeb(loadbit, Serial_Command); | |
4936 | comedi_udelay(1); | |
4937 | ni_writeb(0, Serial_Command); | |
4938 | } | |
4939 | ||
4940 | static int pack_mb88341(int addr, int val, int *bitstring) | |
4941 | { | |
4942 | /* | |
4943 | Fujitsu MB 88341 | |
4944 | Note that address bits are reversed. Thanks to | |
4945 | Ingo Keen for noticing this. | |
4946 | ||
4947 | Note also that the 88341 expects address values from | |
4948 | 1-12, whereas we use channel numbers 0-11. The NI | |
4949 | docs use 1-12, also, so be careful here. | |
4950 | */ | |
4951 | addr++; | |
4952 | *bitstring = ((addr & 0x1) << 11) | | |
4953 | ((addr & 0x2) << 9) | | |
4954 | ((addr & 0x4) << 7) | ((addr & 0x8) << 5) | (val & 0xff); | |
4955 | return 12; | |
4956 | } | |
4957 | ||
4958 | static int pack_dac8800(int addr, int val, int *bitstring) | |
4959 | { | |
4960 | *bitstring = ((addr & 0x7) << 8) | (val & 0xff); | |
4961 | return 11; | |
4962 | } | |
4963 | ||
4964 | static int pack_dac8043(int addr, int val, int *bitstring) | |
4965 | { | |
4966 | *bitstring = val & 0xfff; | |
4967 | return 12; | |
4968 | } | |
4969 | ||
4970 | static int pack_ad8522(int addr, int val, int *bitstring) | |
4971 | { | |
4972 | *bitstring = (val & 0xfff) | (addr ? 0xc000 : 0xa000); | |
4973 | return 16; | |
4974 | } | |
4975 | ||
4976 | static int pack_ad8804(int addr, int val, int *bitstring) | |
4977 | { | |
4978 | *bitstring = ((addr & 0xf) << 8) | (val & 0xff); | |
4979 | return 12; | |
4980 | } | |
4981 | ||
4982 | static int pack_ad8842(int addr, int val, int *bitstring) | |
4983 | { | |
4984 | *bitstring = ((addr + 1) << 8) | (val & 0xff); | |
4985 | return 12; | |
4986 | } | |
4987 | ||
4988 | #if 0 | |
4989 | /* | |
4990 | * Read the GPCTs current value. | |
4991 | */ | |
da91b269 | 4992 | static int GPCT_G_Watch(struct comedi_device *dev, int chan) |
03aef4b6 DS |
4993 | { |
4994 | unsigned int hi1, hi2, lo; | |
4995 | ||
4996 | devpriv->gpct_command[chan] &= ~G_Save_Trace; | |
4997 | devpriv->stc_writew(dev, devpriv->gpct_command[chan], | |
4998 | G_Command_Register(chan)); | |
4999 | ||
5000 | devpriv->gpct_command[chan] |= G_Save_Trace; | |
5001 | devpriv->stc_writew(dev, devpriv->gpct_command[chan], | |
5002 | G_Command_Register(chan)); | |
5003 | ||
5004 | /* This procedure is used because the two registers cannot | |
5005 | * be read atomically. */ | |
5006 | do { | |
5007 | hi1 = devpriv->stc_readw(dev, G_Save_Register_High(chan)); | |
5008 | lo = devpriv->stc_readw(dev, G_Save_Register_Low(chan)); | |
5009 | hi2 = devpriv->stc_readw(dev, G_Save_Register_High(chan)); | |
5010 | } while (hi1 != hi2); | |
5011 | ||
5012 | return (hi1 << 16) | lo; | |
5013 | } | |
5014 | ||
da91b269 | 5015 | static void GPCT_Reset(struct comedi_device *dev, int chan) |
03aef4b6 DS |
5016 | { |
5017 | int temp_ack_reg = 0; | |
5018 | ||
2696fb57 | 5019 | /* printk("GPCT_Reset..."); */ |
03aef4b6 DS |
5020 | devpriv->gpct_cur_operation[chan] = GPCT_RESET; |
5021 | ||
5022 | switch (chan) { | |
5023 | case 0: | |
5024 | devpriv->stc_writew(dev, G0_Reset, Joint_Reset_Register); | |
5025 | ni_set_bits(dev, Interrupt_A_Enable_Register, | |
5026 | G0_TC_Interrupt_Enable, 0); | |
5027 | ni_set_bits(dev, Interrupt_A_Enable_Register, | |
5028 | G0_Gate_Interrupt_Enable, 0); | |
5029 | temp_ack_reg |= G0_Gate_Error_Confirm; | |
5030 | temp_ack_reg |= G0_TC_Error_Confirm; | |
5031 | temp_ack_reg |= G0_TC_Interrupt_Ack; | |
5032 | temp_ack_reg |= G0_Gate_Interrupt_Ack; | |
5033 | devpriv->stc_writew(dev, temp_ack_reg, | |
5034 | Interrupt_A_Ack_Register); | |
5035 | ||
2696fb57 | 5036 | /* problem...this interferes with the other ctr... */ |
03aef4b6 DS |
5037 | devpriv->an_trig_etc_reg |= GPFO_0_Output_Enable; |
5038 | devpriv->stc_writew(dev, devpriv->an_trig_etc_reg, | |
5039 | Analog_Trigger_Etc_Register); | |
5040 | break; | |
5041 | case 1: | |
5042 | devpriv->stc_writew(dev, G1_Reset, Joint_Reset_Register); | |
5043 | ni_set_bits(dev, Interrupt_B_Enable_Register, | |
5044 | G1_TC_Interrupt_Enable, 0); | |
5045 | ni_set_bits(dev, Interrupt_B_Enable_Register, | |
5046 | G0_Gate_Interrupt_Enable, 0); | |
5047 | temp_ack_reg |= G1_Gate_Error_Confirm; | |
5048 | temp_ack_reg |= G1_TC_Error_Confirm; | |
5049 | temp_ack_reg |= G1_TC_Interrupt_Ack; | |
5050 | temp_ack_reg |= G1_Gate_Interrupt_Ack; | |
5051 | devpriv->stc_writew(dev, temp_ack_reg, | |
5052 | Interrupt_B_Ack_Register); | |
5053 | ||
5054 | devpriv->an_trig_etc_reg |= GPFO_1_Output_Enable; | |
5055 | devpriv->stc_writew(dev, devpriv->an_trig_etc_reg, | |
5056 | Analog_Trigger_Etc_Register); | |
5057 | break; | |
5058 | }; | |
5059 | ||
5060 | devpriv->gpct_mode[chan] = 0; | |
5061 | devpriv->gpct_input_select[chan] = 0; | |
5062 | devpriv->gpct_command[chan] = 0; | |
5063 | ||
5064 | devpriv->gpct_command[chan] |= G_Synchronized_Gate; | |
5065 | ||
5066 | devpriv->stc_writew(dev, devpriv->gpct_mode[chan], | |
5067 | G_Mode_Register(chan)); | |
5068 | devpriv->stc_writew(dev, devpriv->gpct_input_select[chan], | |
5069 | G_Input_Select_Register(chan)); | |
5070 | devpriv->stc_writew(dev, 0, G_Autoincrement_Register(chan)); | |
5071 | ||
2696fb57 | 5072 | /* printk("exit GPCT_Reset\n"); */ |
03aef4b6 DS |
5073 | } |
5074 | ||
5075 | #endif | |
5076 | ||
da91b269 BP |
5077 | static int ni_gpct_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, |
5078 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
5079 | { |
5080 | struct ni_gpct *counter = s->private; | |
5081 | return ni_tio_insn_config(counter, insn, data); | |
5082 | } | |
5083 | ||
da91b269 BP |
5084 | static int ni_gpct_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, |
5085 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
5086 | { |
5087 | struct ni_gpct *counter = s->private; | |
5088 | return ni_tio_rinsn(counter, insn, data); | |
5089 | } | |
5090 | ||
da91b269 BP |
5091 | static int ni_gpct_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, |
5092 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
5093 | { |
5094 | struct ni_gpct *counter = s->private; | |
5095 | return ni_tio_winsn(counter, insn, data); | |
5096 | } | |
5097 | ||
da91b269 | 5098 | static int ni_gpct_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
03aef4b6 DS |
5099 | { |
5100 | int retval; | |
5101 | #ifdef PCIDMA | |
5102 | struct ni_gpct *counter = s->private; | |
2696fb57 | 5103 | /* const struct comedi_cmd *cmd = &s->async->cmd; */ |
03aef4b6 DS |
5104 | |
5105 | retval = ni_request_gpct_mite_channel(dev, counter->counter_index, | |
5106 | COMEDI_INPUT); | |
5107 | if (retval) { | |
5108 | comedi_error(dev, | |
5109 | "no dma channel available for use by counter"); | |
5110 | return retval; | |
5111 | } | |
5112 | ni_tio_acknowledge_and_confirm(counter, NULL, NULL, NULL, NULL); | |
5113 | ni_e_series_enable_second_irq(dev, counter->counter_index, 1); | |
5114 | retval = ni_tio_cmd(counter, s->async); | |
5115 | #else | |
5116 | retval = -ENOTSUPP; | |
5117 | #endif | |
5118 | return retval; | |
5119 | } | |
5120 | ||
da91b269 BP |
5121 | static int ni_gpct_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, |
5122 | struct comedi_cmd *cmd) | |
03aef4b6 DS |
5123 | { |
5124 | #ifdef PCIDMA | |
5125 | struct ni_gpct *counter = s->private; | |
5126 | ||
5127 | return ni_tio_cmdtest(counter, cmd); | |
5128 | #else | |
5129 | return -ENOTSUPP; | |
5130 | #endif | |
5131 | } | |
5132 | ||
da91b269 | 5133 | static int ni_gpct_cancel(struct comedi_device *dev, struct comedi_subdevice *s) |
03aef4b6 DS |
5134 | { |
5135 | #ifdef PCIDMA | |
5136 | struct ni_gpct *counter = s->private; | |
5137 | int retval; | |
5138 | ||
5139 | retval = ni_tio_cancel(counter); | |
5140 | ni_e_series_enable_second_irq(dev, counter->counter_index, 0); | |
5141 | ni_release_gpct_mite_channel(dev, counter->counter_index); | |
5142 | return retval; | |
5143 | #else | |
5144 | return 0; | |
5145 | #endif | |
5146 | } | |
5147 | ||
5148 | /* | |
5149 | * | |
5150 | * Programmable Function Inputs | |
5151 | * | |
5152 | */ | |
5153 | ||
da91b269 | 5154 | static int ni_m_series_set_pfi_routing(struct comedi_device *dev, unsigned chan, |
03aef4b6 DS |
5155 | unsigned source) |
5156 | { | |
5157 | unsigned pfi_reg_index; | |
5158 | unsigned array_offset; | |
5159 | if ((source & 0x1f) != source) | |
5160 | return -EINVAL; | |
5161 | pfi_reg_index = 1 + chan / 3; | |
5162 | array_offset = pfi_reg_index - 1; | |
5163 | devpriv->pfi_output_select_reg[array_offset] &= | |
5164 | ~MSeries_PFI_Output_Select_Mask(chan); | |
5165 | devpriv->pfi_output_select_reg[array_offset] |= | |
5166 | MSeries_PFI_Output_Select_Bits(chan, source); | |
5167 | ni_writew(devpriv->pfi_output_select_reg[array_offset], | |
5168 | M_Offset_PFI_Output_Select(pfi_reg_index)); | |
5169 | return 2; | |
5170 | } | |
5171 | ||
da91b269 | 5172 | static int ni_old_set_pfi_routing(struct comedi_device *dev, unsigned chan, |
03aef4b6 DS |
5173 | unsigned source) |
5174 | { | |
2696fb57 | 5175 | /* pre-m-series boards have fixed signals on pfi pins */ |
03aef4b6 DS |
5176 | if (source != ni_old_get_pfi_routing(dev, chan)) |
5177 | return -EINVAL; | |
5178 | return 2; | |
5179 | } | |
5180 | ||
da91b269 | 5181 | static int ni_set_pfi_routing(struct comedi_device *dev, unsigned chan, |
03aef4b6 DS |
5182 | unsigned source) |
5183 | { | |
5184 | if (boardtype.reg_type & ni_reg_m_series_mask) | |
5185 | return ni_m_series_set_pfi_routing(dev, chan, source); | |
5186 | else | |
5187 | return ni_old_set_pfi_routing(dev, chan, source); | |
5188 | } | |
5189 | ||
da91b269 | 5190 | static unsigned ni_m_series_get_pfi_routing(struct comedi_device *dev, unsigned chan) |
03aef4b6 DS |
5191 | { |
5192 | const unsigned array_offset = chan / 3; | |
5193 | return MSeries_PFI_Output_Select_Source(chan, | |
5194 | devpriv->pfi_output_select_reg[array_offset]); | |
5195 | } | |
5196 | ||
da91b269 | 5197 | static unsigned ni_old_get_pfi_routing(struct comedi_device *dev, unsigned chan) |
03aef4b6 | 5198 | { |
2696fb57 | 5199 | /* pre-m-series boards have fixed signals on pfi pins */ |
03aef4b6 DS |
5200 | switch (chan) { |
5201 | case 0: | |
5202 | return NI_PFI_OUTPUT_AI_START1; | |
5203 | break; | |
5204 | case 1: | |
5205 | return NI_PFI_OUTPUT_AI_START2; | |
5206 | break; | |
5207 | case 2: | |
5208 | return NI_PFI_OUTPUT_AI_CONVERT; | |
5209 | break; | |
5210 | case 3: | |
5211 | return NI_PFI_OUTPUT_G_SRC1; | |
5212 | break; | |
5213 | case 4: | |
5214 | return NI_PFI_OUTPUT_G_GATE1; | |
5215 | break; | |
5216 | case 5: | |
5217 | return NI_PFI_OUTPUT_AO_UPDATE_N; | |
5218 | break; | |
5219 | case 6: | |
5220 | return NI_PFI_OUTPUT_AO_START1; | |
5221 | break; | |
5222 | case 7: | |
5223 | return NI_PFI_OUTPUT_AI_START_PULSE; | |
5224 | break; | |
5225 | case 8: | |
5226 | return NI_PFI_OUTPUT_G_SRC0; | |
5227 | break; | |
5228 | case 9: | |
5229 | return NI_PFI_OUTPUT_G_GATE0; | |
5230 | break; | |
5231 | default: | |
ddcb01d4 | 5232 | rt_printk("%s: bug, unhandled case in switch.\n", __func__); |
03aef4b6 DS |
5233 | break; |
5234 | } | |
5235 | return 0; | |
5236 | } | |
5237 | ||
da91b269 | 5238 | static unsigned ni_get_pfi_routing(struct comedi_device *dev, unsigned chan) |
03aef4b6 DS |
5239 | { |
5240 | if (boardtype.reg_type & ni_reg_m_series_mask) | |
5241 | return ni_m_series_get_pfi_routing(dev, chan); | |
5242 | else | |
5243 | return ni_old_get_pfi_routing(dev, chan); | |
5244 | } | |
5245 | ||
da91b269 | 5246 | static int ni_config_filter(struct comedi_device *dev, unsigned pfi_channel, |
03aef4b6 DS |
5247 | enum ni_pfi_filter_select filter) |
5248 | { | |
5249 | unsigned bits; | |
5250 | if ((boardtype.reg_type & ni_reg_m_series_mask) == 0) { | |
5251 | return -ENOTSUPP; | |
5252 | } | |
5253 | bits = ni_readl(M_Offset_PFI_Filter); | |
5254 | bits &= ~MSeries_PFI_Filter_Select_Mask(pfi_channel); | |
5255 | bits |= MSeries_PFI_Filter_Select_Bits(pfi_channel, filter); | |
5256 | ni_writel(bits, M_Offset_PFI_Filter); | |
5257 | return 0; | |
5258 | } | |
5259 | ||
da91b269 BP |
5260 | static int ni_pfi_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, |
5261 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
5262 | { |
5263 | if ((boardtype.reg_type & ni_reg_m_series_mask) == 0) { | |
5264 | return -ENOTSUPP; | |
5265 | } | |
5266 | if (data[0]) { | |
5267 | s->state &= ~data[0]; | |
5268 | s->state |= (data[0] & data[1]); | |
5269 | ni_writew(s->state, M_Offset_PFI_DO); | |
5270 | } | |
5271 | data[1] = ni_readw(M_Offset_PFI_DI); | |
5272 | return 2; | |
5273 | } | |
5274 | ||
da91b269 BP |
5275 | static int ni_pfi_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, |
5276 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
5277 | { |
5278 | unsigned int chan; | |
5279 | ||
5280 | if (insn->n < 1) | |
5281 | return -EINVAL; | |
5282 | ||
5283 | chan = CR_CHAN(insn->chanspec); | |
5284 | ||
5285 | switch (data[0]) { | |
5286 | case COMEDI_OUTPUT: | |
5287 | ni_set_bits(dev, IO_Bidirection_Pin_Register, 1 << chan, 1); | |
5288 | break; | |
5289 | case COMEDI_INPUT: | |
5290 | ni_set_bits(dev, IO_Bidirection_Pin_Register, 1 << chan, 0); | |
5291 | break; | |
5292 | case INSN_CONFIG_DIO_QUERY: | |
5293 | data[1] = | |
5294 | (devpriv-> | |
5295 | io_bidirection_pin_reg & (1 << chan)) ? COMEDI_OUTPUT : | |
5296 | COMEDI_INPUT; | |
5297 | return 0; | |
5298 | break; | |
5299 | case INSN_CONFIG_SET_ROUTING: | |
5300 | return ni_set_pfi_routing(dev, chan, data[1]); | |
5301 | break; | |
5302 | case INSN_CONFIG_GET_ROUTING: | |
5303 | data[1] = ni_get_pfi_routing(dev, chan); | |
5304 | break; | |
5305 | case INSN_CONFIG_FILTER: | |
5306 | return ni_config_filter(dev, chan, data[1]); | |
5307 | break; | |
5308 | default: | |
5309 | return -EINVAL; | |
5310 | } | |
5311 | return 0; | |
5312 | } | |
5313 | ||
5314 | /* | |
5315 | * | |
5316 | * NI RTSI Bus Functions | |
5317 | * | |
5318 | */ | |
da91b269 | 5319 | static void ni_rtsi_init(struct comedi_device *dev) |
03aef4b6 | 5320 | { |
2696fb57 | 5321 | /* Initialises the RTSI bus signal switch to a default state */ |
03aef4b6 | 5322 | |
2696fb57 | 5323 | /* Set clock mode to internal */ |
03aef4b6 DS |
5324 | devpriv->clock_and_fout2 = MSeries_RTSI_10MHz_Bit; |
5325 | if (ni_set_master_clock(dev, NI_MIO_INTERNAL_CLOCK, 0) < 0) { | |
5326 | rt_printk("ni_set_master_clock failed, bug?"); | |
5327 | } | |
2696fb57 | 5328 | /* default internal lines routing to RTSI bus lines */ |
03aef4b6 DS |
5329 | devpriv->rtsi_trig_a_output_reg = |
5330 | RTSI_Trig_Output_Bits(0, | |
5331 | NI_RTSI_OUTPUT_ADR_START1) | RTSI_Trig_Output_Bits(1, | |
5332 | NI_RTSI_OUTPUT_ADR_START2) | RTSI_Trig_Output_Bits(2, | |
5333 | NI_RTSI_OUTPUT_SCLKG) | RTSI_Trig_Output_Bits(3, | |
5334 | NI_RTSI_OUTPUT_DACUPDN); | |
5335 | devpriv->stc_writew(dev, devpriv->rtsi_trig_a_output_reg, | |
5336 | RTSI_Trig_A_Output_Register); | |
5337 | devpriv->rtsi_trig_b_output_reg = | |
5338 | RTSI_Trig_Output_Bits(4, | |
5339 | NI_RTSI_OUTPUT_DA_START1) | RTSI_Trig_Output_Bits(5, | |
5340 | NI_RTSI_OUTPUT_G_SRC0) | RTSI_Trig_Output_Bits(6, | |
5341 | NI_RTSI_OUTPUT_G_GATE0); | |
5342 | if (boardtype.reg_type & ni_reg_m_series_mask) | |
5343 | devpriv->rtsi_trig_b_output_reg |= | |
5344 | RTSI_Trig_Output_Bits(7, NI_RTSI_OUTPUT_RTSI_OSC); | |
5345 | devpriv->stc_writew(dev, devpriv->rtsi_trig_b_output_reg, | |
5346 | RTSI_Trig_B_Output_Register); | |
5347 | ||
2696fb57 BP |
5348 | /* |
5349 | * Sets the source and direction of the 4 on board lines | |
5350 | * devpriv->stc_writew(dev, 0x0000, RTSI_Board_Register); | |
5351 | */ | |
03aef4b6 DS |
5352 | } |
5353 | ||
da91b269 BP |
5354 | static int ni_rtsi_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, |
5355 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
5356 | { |
5357 | if (insn->n != 2) | |
5358 | return -EINVAL; | |
5359 | ||
5360 | data[1] = 0; | |
5361 | ||
5362 | return 2; | |
5363 | } | |
5364 | ||
5365 | /* Find best multiplier/divider to try and get the PLL running at 80 MHz | |
5366 | * given an arbitrary frequency input clock */ | |
5367 | static int ni_mseries_get_pll_parameters(unsigned reference_period_ns, | |
5368 | unsigned *freq_divider, unsigned *freq_multiplier, | |
5369 | unsigned *actual_period_ns) | |
5370 | { | |
5371 | unsigned div; | |
5372 | unsigned best_div = 1; | |
5373 | static const unsigned max_div = 0x10; | |
5374 | unsigned mult; | |
5375 | unsigned best_mult = 1; | |
5376 | static const unsigned max_mult = 0x100; | |
5377 | static const unsigned pico_per_nano = 1000; | |
5378 | ||
5379 | const unsigned reference_picosec = reference_period_ns * pico_per_nano; | |
5380 | /* m-series wants the phased-locked loop to output 80MHz, which is divided by 4 to | |
5381 | * 20 MHz for most timing clocks */ | |
5382 | static const unsigned target_picosec = 12500; | |
5383 | static const unsigned fudge_factor_80_to_20Mhz = 4; | |
5384 | int best_period_picosec = 0; | |
5385 | for (div = 1; div <= max_div; ++div) { | |
5386 | for (mult = 1; mult <= max_mult; ++mult) { | |
5387 | unsigned new_period_ps = | |
5388 | (reference_picosec * div) / mult; | |
5389 | if (abs(new_period_ps - target_picosec) < | |
5390 | abs(best_period_picosec - target_picosec)) { | |
5391 | best_period_picosec = new_period_ps; | |
5392 | best_div = div; | |
5393 | best_mult = mult; | |
5394 | } | |
5395 | } | |
5396 | } | |
5397 | if (best_period_picosec == 0) { | |
5398 | rt_printk("%s: bug, failed to find pll parameters\n", | |
ddcb01d4 | 5399 | __func__); |
03aef4b6 DS |
5400 | return -EIO; |
5401 | } | |
5402 | *freq_divider = best_div; | |
5403 | *freq_multiplier = best_mult; | |
5404 | *actual_period_ns = | |
5405 | (best_period_picosec * fudge_factor_80_to_20Mhz + | |
5406 | (pico_per_nano / 2)) / pico_per_nano; | |
5407 | return 0; | |
5408 | } | |
5409 | ||
da91b269 | 5410 | static inline unsigned num_configurable_rtsi_channels(struct comedi_device *dev) |
03aef4b6 DS |
5411 | { |
5412 | if (boardtype.reg_type & ni_reg_m_series_mask) | |
5413 | return 8; | |
5414 | else | |
5415 | return 7; | |
5416 | } | |
5417 | ||
da91b269 | 5418 | static int ni_mseries_set_pll_master_clock(struct comedi_device *dev, unsigned source, |
03aef4b6 DS |
5419 | unsigned period_ns) |
5420 | { | |
5421 | static const unsigned min_period_ns = 50; | |
5422 | static const unsigned max_period_ns = 1000; | |
5423 | static const unsigned timeout = 1000; | |
5424 | unsigned pll_control_bits; | |
5425 | unsigned freq_divider; | |
5426 | unsigned freq_multiplier; | |
5427 | unsigned i; | |
5428 | int retval; | |
5429 | if (source == NI_MIO_PLL_PXI10_CLOCK) | |
5430 | period_ns = 100; | |
2696fb57 | 5431 | /* these limits are somewhat arbitrary, but NI advertises 1 to 20MHz range so we'll use that */ |
03aef4b6 DS |
5432 | if (period_ns < min_period_ns || period_ns > max_period_ns) { |
5433 | rt_printk | |
5434 | ("%s: you must specify an input clock frequency between %i and %i nanosec " | |
ddcb01d4 | 5435 | "for the phased-lock loop.\n", __func__, |
03aef4b6 DS |
5436 | min_period_ns, max_period_ns); |
5437 | return -EINVAL; | |
5438 | } | |
5439 | devpriv->rtsi_trig_direction_reg &= ~Use_RTSI_Clock_Bit; | |
5440 | devpriv->stc_writew(dev, devpriv->rtsi_trig_direction_reg, | |
5441 | RTSI_Trig_Direction_Register); | |
5442 | pll_control_bits = | |
5443 | MSeries_PLL_Enable_Bit | MSeries_PLL_VCO_Mode_75_150MHz_Bits; | |
5444 | devpriv->clock_and_fout2 |= | |
5445 | MSeries_Timebase1_Select_Bit | MSeries_Timebase3_Select_Bit; | |
5446 | devpriv->clock_and_fout2 &= ~MSeries_PLL_In_Source_Select_Mask; | |
5447 | switch (source) { | |
5448 | case NI_MIO_PLL_PXI_STAR_TRIGGER_CLOCK: | |
5449 | devpriv->clock_and_fout2 |= | |
5450 | MSeries_PLL_In_Source_Select_Star_Trigger_Bits; | |
5451 | retval = ni_mseries_get_pll_parameters(period_ns, &freq_divider, | |
5452 | &freq_multiplier, &devpriv->clock_ns); | |
5453 | if (retval < 0) | |
5454 | return retval; | |
5455 | break; | |
5456 | case NI_MIO_PLL_PXI10_CLOCK: | |
5457 | /* pxi clock is 10MHz */ | |
5458 | devpriv->clock_and_fout2 |= | |
5459 | MSeries_PLL_In_Source_Select_PXI_Clock10; | |
5460 | retval = ni_mseries_get_pll_parameters(period_ns, &freq_divider, | |
5461 | &freq_multiplier, &devpriv->clock_ns); | |
5462 | if (retval < 0) | |
5463 | return retval; | |
5464 | break; | |
5465 | default: | |
5466 | { | |
5467 | unsigned rtsi_channel; | |
5468 | static const unsigned max_rtsi_channel = 7; | |
5469 | for (rtsi_channel = 0; rtsi_channel <= max_rtsi_channel; | |
5470 | ++rtsi_channel) { | |
5471 | if (source == | |
5472 | NI_MIO_PLL_RTSI_CLOCK(rtsi_channel)) { | |
5473 | devpriv->clock_and_fout2 |= | |
5474 | MSeries_PLL_In_Source_Select_RTSI_Bits | |
5475 | (rtsi_channel); | |
5476 | break; | |
5477 | } | |
5478 | } | |
5479 | if (rtsi_channel > max_rtsi_channel) | |
5480 | return -EINVAL; | |
5481 | retval = ni_mseries_get_pll_parameters(period_ns, | |
5482 | &freq_divider, &freq_multiplier, | |
5483 | &devpriv->clock_ns); | |
5484 | if (retval < 0) | |
5485 | return retval; | |
5486 | } | |
5487 | break; | |
5488 | } | |
5489 | ni_writew(devpriv->clock_and_fout2, M_Offset_Clock_and_Fout2); | |
5490 | pll_control_bits |= | |
5491 | MSeries_PLL_Divisor_Bits(freq_divider) | | |
5492 | MSeries_PLL_Multiplier_Bits(freq_multiplier); | |
2696fb57 BP |
5493 | |
5494 | /* rt_printk("using divider=%i, multiplier=%i for PLL. pll_control_bits = 0x%x\n", | |
5495 | * freq_divider, freq_multiplier, pll_control_bits); */ | |
5496 | /* rt_printk("clock_ns=%d\n", devpriv->clock_ns); */ | |
03aef4b6 DS |
5497 | ni_writew(pll_control_bits, M_Offset_PLL_Control); |
5498 | devpriv->clock_source = source; | |
5499 | /* it seems to typically take a few hundred microseconds for PLL to lock */ | |
5500 | for (i = 0; i < timeout; ++i) { | |
5501 | if (ni_readw(M_Offset_PLL_Status) & MSeries_PLL_Locked_Bit) { | |
5502 | break; | |
5503 | } | |
5504 | udelay(1); | |
5505 | } | |
5506 | if (i == timeout) { | |
5507 | rt_printk | |
5508 | ("%s: timed out waiting for PLL to lock to reference clock source %i with period %i ns.\n", | |
ddcb01d4 | 5509 | __func__, source, period_ns); |
03aef4b6 DS |
5510 | return -ETIMEDOUT; |
5511 | } | |
5512 | return 3; | |
5513 | } | |
5514 | ||
da91b269 | 5515 | static int ni_set_master_clock(struct comedi_device *dev, unsigned source, |
03aef4b6 DS |
5516 | unsigned period_ns) |
5517 | { | |
5518 | if (source == NI_MIO_INTERNAL_CLOCK) { | |
5519 | devpriv->rtsi_trig_direction_reg &= ~Use_RTSI_Clock_Bit; | |
5520 | devpriv->stc_writew(dev, devpriv->rtsi_trig_direction_reg, | |
5521 | RTSI_Trig_Direction_Register); | |
5522 | devpriv->clock_ns = TIMEBASE_1_NS; | |
5523 | if (boardtype.reg_type & ni_reg_m_series_mask) { | |
5524 | devpriv->clock_and_fout2 &= | |
5525 | ~(MSeries_Timebase1_Select_Bit | | |
5526 | MSeries_Timebase3_Select_Bit); | |
5527 | ni_writew(devpriv->clock_and_fout2, | |
5528 | M_Offset_Clock_and_Fout2); | |
5529 | ni_writew(0, M_Offset_PLL_Control); | |
5530 | } | |
5531 | devpriv->clock_source = source; | |
5532 | } else { | |
5533 | if (boardtype.reg_type & ni_reg_m_series_mask) { | |
5534 | return ni_mseries_set_pll_master_clock(dev, source, | |
5535 | period_ns); | |
5536 | } else { | |
5537 | if (source == NI_MIO_RTSI_CLOCK) { | |
5538 | devpriv->rtsi_trig_direction_reg |= | |
5539 | Use_RTSI_Clock_Bit; | |
5540 | devpriv->stc_writew(dev, | |
5541 | devpriv->rtsi_trig_direction_reg, | |
5542 | RTSI_Trig_Direction_Register); | |
5543 | if (period_ns == 0) { | |
5544 | rt_printk | |
5545 | ("%s: we don't handle an unspecified clock period correctly yet, returning error.\n", | |
ddcb01d4 | 5546 | __func__); |
03aef4b6 DS |
5547 | return -EINVAL; |
5548 | } else { | |
5549 | devpriv->clock_ns = period_ns; | |
5550 | } | |
5551 | devpriv->clock_source = source; | |
5552 | } else | |
5553 | return -EINVAL; | |
5554 | } | |
5555 | } | |
5556 | return 3; | |
5557 | } | |
5558 | ||
da91b269 | 5559 | static int ni_valid_rtsi_output_source(struct comedi_device *dev, unsigned chan, |
03aef4b6 DS |
5560 | unsigned source) |
5561 | { | |
5562 | if (chan >= num_configurable_rtsi_channels(dev)) { | |
5563 | if (chan == old_RTSI_clock_channel) { | |
5564 | if (source == NI_RTSI_OUTPUT_RTSI_OSC) | |
5565 | return 1; | |
5566 | else { | |
5567 | rt_printk | |
5568 | ("%s: invalid source for channel=%i, channel %i is always the RTSI clock for pre-m-series boards.\n", | |
ddcb01d4 | 5569 | __func__, chan, |
03aef4b6 DS |
5570 | old_RTSI_clock_channel); |
5571 | return 0; | |
5572 | } | |
5573 | } | |
5574 | return 0; | |
5575 | } | |
5576 | switch (source) { | |
5577 | case NI_RTSI_OUTPUT_ADR_START1: | |
5578 | case NI_RTSI_OUTPUT_ADR_START2: | |
5579 | case NI_RTSI_OUTPUT_SCLKG: | |
5580 | case NI_RTSI_OUTPUT_DACUPDN: | |
5581 | case NI_RTSI_OUTPUT_DA_START1: | |
5582 | case NI_RTSI_OUTPUT_G_SRC0: | |
5583 | case NI_RTSI_OUTPUT_G_GATE0: | |
5584 | case NI_RTSI_OUTPUT_RGOUT0: | |
5585 | case NI_RTSI_OUTPUT_RTSI_BRD_0: | |
5586 | return 1; | |
5587 | break; | |
5588 | case NI_RTSI_OUTPUT_RTSI_OSC: | |
5589 | if (boardtype.reg_type & ni_reg_m_series_mask) | |
5590 | return 1; | |
5591 | else | |
5592 | return 0; | |
5593 | break; | |
5594 | default: | |
5595 | return 0; | |
5596 | break; | |
5597 | } | |
5598 | } | |
5599 | ||
da91b269 | 5600 | static int ni_set_rtsi_routing(struct comedi_device *dev, unsigned chan, |
03aef4b6 DS |
5601 | unsigned source) |
5602 | { | |
5603 | if (ni_valid_rtsi_output_source(dev, chan, source) == 0) | |
5604 | return -EINVAL; | |
5605 | if (chan < 4) { | |
5606 | devpriv->rtsi_trig_a_output_reg &= ~RTSI_Trig_Output_Mask(chan); | |
5607 | devpriv->rtsi_trig_a_output_reg |= | |
5608 | RTSI_Trig_Output_Bits(chan, source); | |
5609 | devpriv->stc_writew(dev, devpriv->rtsi_trig_a_output_reg, | |
5610 | RTSI_Trig_A_Output_Register); | |
5611 | } else if (chan < 8) { | |
5612 | devpriv->rtsi_trig_b_output_reg &= ~RTSI_Trig_Output_Mask(chan); | |
5613 | devpriv->rtsi_trig_b_output_reg |= | |
5614 | RTSI_Trig_Output_Bits(chan, source); | |
5615 | devpriv->stc_writew(dev, devpriv->rtsi_trig_b_output_reg, | |
5616 | RTSI_Trig_B_Output_Register); | |
5617 | } | |
5618 | return 2; | |
5619 | } | |
5620 | ||
da91b269 | 5621 | static unsigned ni_get_rtsi_routing(struct comedi_device *dev, unsigned chan) |
03aef4b6 DS |
5622 | { |
5623 | if (chan < 4) { | |
5624 | return RTSI_Trig_Output_Source(chan, | |
5625 | devpriv->rtsi_trig_a_output_reg); | |
5626 | } else if (chan < num_configurable_rtsi_channels(dev)) { | |
5627 | return RTSI_Trig_Output_Source(chan, | |
5628 | devpriv->rtsi_trig_b_output_reg); | |
5629 | } else { | |
5630 | if (chan == old_RTSI_clock_channel) | |
5631 | return NI_RTSI_OUTPUT_RTSI_OSC; | |
ddcb01d4 | 5632 | rt_printk("%s: bug! should never get here?\n", __func__); |
03aef4b6 DS |
5633 | return 0; |
5634 | } | |
5635 | } | |
5636 | ||
da91b269 BP |
5637 | static int ni_rtsi_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, |
5638 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
5639 | { |
5640 | unsigned int chan = CR_CHAN(insn->chanspec); | |
5641 | switch (data[0]) { | |
5642 | case INSN_CONFIG_DIO_OUTPUT: | |
5643 | if (chan < num_configurable_rtsi_channels(dev)) { | |
5644 | devpriv->rtsi_trig_direction_reg |= | |
5645 | RTSI_Output_Bit(chan, | |
5646 | (boardtype.reg_type & ni_reg_m_series_mask) != | |
5647 | 0); | |
5648 | } else if (chan == old_RTSI_clock_channel) { | |
5649 | devpriv->rtsi_trig_direction_reg |= | |
5650 | Drive_RTSI_Clock_Bit; | |
5651 | } | |
5652 | devpriv->stc_writew(dev, devpriv->rtsi_trig_direction_reg, | |
5653 | RTSI_Trig_Direction_Register); | |
5654 | break; | |
5655 | case INSN_CONFIG_DIO_INPUT: | |
5656 | if (chan < num_configurable_rtsi_channels(dev)) { | |
5657 | devpriv->rtsi_trig_direction_reg &= | |
5658 | ~RTSI_Output_Bit(chan, | |
5659 | (boardtype.reg_type & ni_reg_m_series_mask) != | |
5660 | 0); | |
5661 | } else if (chan == old_RTSI_clock_channel) { | |
5662 | devpriv->rtsi_trig_direction_reg &= | |
5663 | ~Drive_RTSI_Clock_Bit; | |
5664 | } | |
5665 | devpriv->stc_writew(dev, devpriv->rtsi_trig_direction_reg, | |
5666 | RTSI_Trig_Direction_Register); | |
5667 | break; | |
5668 | case INSN_CONFIG_DIO_QUERY: | |
5669 | if (chan < num_configurable_rtsi_channels(dev)) { | |
5670 | data[1] = | |
5671 | (devpriv-> | |
5672 | rtsi_trig_direction_reg & RTSI_Output_Bit(chan, | |
5673 | (boardtype. | |
5674 | reg_type & ni_reg_m_series_mask) | |
5675 | != | |
5676 | 0)) ? INSN_CONFIG_DIO_OUTPUT : | |
5677 | INSN_CONFIG_DIO_INPUT; | |
5678 | } else if (chan == old_RTSI_clock_channel) { | |
5679 | data[1] = | |
5680 | (devpriv-> | |
5681 | rtsi_trig_direction_reg & Drive_RTSI_Clock_Bit) | |
5682 | ? INSN_CONFIG_DIO_OUTPUT : | |
5683 | INSN_CONFIG_DIO_INPUT; | |
5684 | } | |
5685 | return 2; | |
5686 | break; | |
5687 | case INSN_CONFIG_SET_CLOCK_SRC: | |
5688 | return ni_set_master_clock(dev, data[1], data[2]); | |
5689 | break; | |
5690 | case INSN_CONFIG_GET_CLOCK_SRC: | |
5691 | data[1] = devpriv->clock_source; | |
5692 | data[2] = devpriv->clock_ns; | |
5693 | return 3; | |
5694 | break; | |
5695 | case INSN_CONFIG_SET_ROUTING: | |
5696 | return ni_set_rtsi_routing(dev, chan, data[1]); | |
5697 | break; | |
5698 | case INSN_CONFIG_GET_ROUTING: | |
5699 | data[1] = ni_get_rtsi_routing(dev, chan); | |
5700 | return 2; | |
5701 | break; | |
5702 | default: | |
5703 | return -EINVAL; | |
5704 | break; | |
5705 | } | |
5706 | return 1; | |
5707 | } | |
5708 | ||
da91b269 | 5709 | static int cs5529_wait_for_idle(struct comedi_device *dev) |
03aef4b6 DS |
5710 | { |
5711 | unsigned short status; | |
5712 | const int timeout = HZ; | |
5713 | int i; | |
5714 | ||
5715 | for (i = 0; i < timeout; i++) { | |
5716 | status = ni_ao_win_inw(dev, CAL_ADC_Status_67xx); | |
5717 | if ((status & CSS_ADC_BUSY) == 0) { | |
5718 | break; | |
5719 | } | |
5720 | set_current_state(TASK_INTERRUPTIBLE); | |
5721 | if (schedule_timeout(1)) { | |
5722 | return -EIO; | |
5723 | } | |
5724 | } | |
2696fb57 | 5725 | /* printk("looped %i times waiting for idle\n", i); */ |
03aef4b6 | 5726 | if (i == timeout) { |
ddcb01d4 | 5727 | rt_printk("%s: %s: timeout\n", __FILE__, __func__); |
03aef4b6 DS |
5728 | return -ETIME; |
5729 | } | |
5730 | return 0; | |
5731 | } | |
5732 | ||
da91b269 | 5733 | static void cs5529_command(struct comedi_device *dev, unsigned short value) |
03aef4b6 DS |
5734 | { |
5735 | static const int timeout = 100; | |
5736 | int i; | |
5737 | ||
5738 | ni_ao_win_outw(dev, value, CAL_ADC_Command_67xx); | |
5739 | /* give time for command to start being serially clocked into cs5529. | |
5740 | * this insures that the CSS_ADC_BUSY bit will get properly | |
5741 | * set before we exit this function. | |
5742 | */ | |
5743 | for (i = 0; i < timeout; i++) { | |
5744 | if ((ni_ao_win_inw(dev, CAL_ADC_Status_67xx) & CSS_ADC_BUSY)) | |
5745 | break; | |
5746 | comedi_udelay(1); | |
5747 | } | |
2696fb57 | 5748 | /* printk("looped %i times writing command to cs5529\n", i); */ |
03aef4b6 DS |
5749 | if (i == timeout) { |
5750 | comedi_error(dev, "possible problem - never saw adc go busy?"); | |
5751 | } | |
5752 | } | |
5753 | ||
5754 | /* write to cs5529 register */ | |
da91b269 | 5755 | static void cs5529_config_write(struct comedi_device *dev, unsigned int value, |
03aef4b6 DS |
5756 | unsigned int reg_select_bits) |
5757 | { | |
5758 | ni_ao_win_outw(dev, ((value >> 16) & 0xff), | |
5759 | CAL_ADC_Config_Data_High_Word_67xx); | |
5760 | ni_ao_win_outw(dev, (value & 0xffff), | |
5761 | CAL_ADC_Config_Data_Low_Word_67xx); | |
5762 | reg_select_bits &= CSCMD_REGISTER_SELECT_MASK; | |
5763 | cs5529_command(dev, CSCMD_COMMAND | reg_select_bits); | |
5764 | if (cs5529_wait_for_idle(dev)) | |
5765 | comedi_error(dev, "time or signal in cs5529_config_write()"); | |
5766 | } | |
5767 | ||
5768 | #ifdef NI_CS5529_DEBUG | |
5769 | /* read from cs5529 register */ | |
da91b269 | 5770 | static unsigned int cs5529_config_read(struct comedi_device *dev, |
03aef4b6 DS |
5771 | unsigned int reg_select_bits) |
5772 | { | |
5773 | unsigned int value; | |
5774 | ||
5775 | reg_select_bits &= CSCMD_REGISTER_SELECT_MASK; | |
5776 | cs5529_command(dev, CSCMD_COMMAND | CSCMD_READ | reg_select_bits); | |
5777 | if (cs5529_wait_for_idle(dev)) | |
5778 | comedi_error(dev, "timeout or signal in cs5529_config_read()"); | |
5779 | value = (ni_ao_win_inw(dev, | |
5780 | CAL_ADC_Config_Data_High_Word_67xx) << 16) & 0xff0000; | |
5781 | value |= ni_ao_win_inw(dev, CAL_ADC_Config_Data_Low_Word_67xx) & 0xffff; | |
5782 | return value; | |
5783 | } | |
5784 | #endif | |
5785 | ||
da91b269 | 5786 | static int cs5529_do_conversion(struct comedi_device *dev, unsigned short *data) |
03aef4b6 DS |
5787 | { |
5788 | int retval; | |
5789 | unsigned short status; | |
5790 | ||
5791 | cs5529_command(dev, CSCMD_COMMAND | CSCMD_SINGLE_CONVERSION); | |
5792 | retval = cs5529_wait_for_idle(dev); | |
5793 | if (retval) { | |
5794 | comedi_error(dev, | |
5795 | "timeout or signal in cs5529_do_conversion()"); | |
5796 | return -ETIME; | |
5797 | } | |
5798 | status = ni_ao_win_inw(dev, CAL_ADC_Status_67xx); | |
5799 | if (status & CSS_OSC_DETECT) { | |
5800 | rt_printk | |
5801 | ("ni_mio_common: cs5529 conversion error, status CSS_OSC_DETECT\n"); | |
5802 | return -EIO; | |
5803 | } | |
5804 | if (status & CSS_OVERRANGE) { | |
5805 | rt_printk | |
5806 | ("ni_mio_common: cs5529 conversion error, overrange (ignoring)\n"); | |
5807 | } | |
5808 | if (data) { | |
5809 | *data = ni_ao_win_inw(dev, CAL_ADC_Data_67xx); | |
5810 | /* cs5529 returns 16 bit signed data in bipolar mode */ | |
5811 | *data ^= (1 << 15); | |
5812 | } | |
5813 | return 0; | |
5814 | } | |
5815 | ||
da91b269 BP |
5816 | static int cs5529_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, |
5817 | struct comedi_insn *insn, unsigned int *data) | |
03aef4b6 DS |
5818 | { |
5819 | int n, retval; | |
5820 | unsigned short sample; | |
5821 | unsigned int channel_select; | |
5822 | const unsigned int INTERNAL_REF = 0x1000; | |
5823 | ||
5824 | /* Set calibration adc source. Docs lie, reference select bits 8 to 11 | |
5825 | * do nothing. bit 12 seems to chooses internal reference voltage, bit | |
5826 | * 13 causes the adc input to go overrange (maybe reads external reference?) */ | |
5827 | if (insn->chanspec & CR_ALT_SOURCE) | |
5828 | channel_select = INTERNAL_REF; | |
5829 | else | |
5830 | channel_select = CR_CHAN(insn->chanspec); | |
5831 | ni_ao_win_outw(dev, channel_select, AO_Calibration_Channel_Select_67xx); | |
5832 | ||
5833 | for (n = 0; n < insn->n; n++) { | |
5834 | retval = cs5529_do_conversion(dev, &sample); | |
5835 | if (retval < 0) | |
5836 | return retval; | |
5837 | data[n] = sample; | |
5838 | } | |
5839 | return insn->n; | |
5840 | } | |
5841 | ||
da91b269 | 5842 | static int init_cs5529(struct comedi_device *dev) |
03aef4b6 DS |
5843 | { |
5844 | unsigned int config_bits = | |
5845 | CSCFG_PORT_MODE | CSCFG_WORD_RATE_2180_CYCLES; | |
5846 | ||
5847 | #if 1 | |
5848 | /* do self-calibration */ | |
5849 | cs5529_config_write(dev, config_bits | CSCFG_SELF_CAL_OFFSET_GAIN, | |
5850 | CSCMD_CONFIG_REGISTER); | |
5851 | /* need to force a conversion for calibration to run */ | |
5852 | cs5529_do_conversion(dev, NULL); | |
5853 | #else | |
5854 | /* force gain calibration to 1 */ | |
5855 | cs5529_config_write(dev, 0x400000, CSCMD_GAIN_REGISTER); | |
5856 | cs5529_config_write(dev, config_bits | CSCFG_SELF_CAL_OFFSET, | |
5857 | CSCMD_CONFIG_REGISTER); | |
5858 | if (cs5529_wait_for_idle(dev)) | |
5859 | comedi_error(dev, "timeout or signal in init_cs5529()\n"); | |
5860 | #endif | |
5861 | #ifdef NI_CS5529_DEBUG | |
5862 | rt_printk("config: 0x%x\n", cs5529_config_read(dev, | |
5863 | CSCMD_CONFIG_REGISTER)); | |
5864 | rt_printk("gain: 0x%x\n", cs5529_config_read(dev, | |
5865 | CSCMD_GAIN_REGISTER)); | |
5866 | rt_printk("offset: 0x%x\n", cs5529_config_read(dev, | |
5867 | CSCMD_OFFSET_REGISTER)); | |
5868 | #endif | |
5869 | return 0; | |
5870 | } |