Commit | Line | Data |
---|---|---|
88b12a9a | 1 | /* |
28fec2e6 AJ |
2 | * comedi/drivers/cb_pcidas64.c |
3 | * This is a driver for the ComputerBoards/MeasurementComputing PCI-DAS | |
4 | * 64xx, 60xx, and 4020 cards. | |
5 | * | |
6 | * Author: Frank Mori Hess <fmhess@users.sourceforge.net> | |
7 | * Copyright (C) 2001, 2002 Frank Mori Hess | |
8 | * | |
9 | * Thanks also go to the following people: | |
10 | * | |
11 | * Steve Rosenbluth, for providing the source code for | |
12 | * his pci-das6402 driver, and source code for working QNX pci-6402 | |
13 | * drivers by Greg Laird and Mariusz Bogacz. None of the code was | |
14 | * used directly here, but it was useful as an additional source of | |
15 | * documentation on how to program the boards. | |
16 | * | |
17 | * John Sims, for much testing and feedback on pcidas-4020 support. | |
18 | * | |
19 | * COMEDI - Linux Control and Measurement Device Interface | |
20 | * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org> | |
21 | * | |
22 | * This program is free software; you can redistribute it and/or modify | |
23 | * it under the terms of the GNU General Public License as published by | |
24 | * the Free Software Foundation; either version 2 of the License, or | |
25 | * (at your option) any later version. | |
26 | * | |
27 | * This program is distributed in the hope that it will be useful, | |
28 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
29 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
30 | * GNU General Public License for more details. | |
31 | */ | |
88b12a9a FMH |
32 | |
33 | /* | |
11aade26 IA |
34 | * Driver: cb_pcidas64 |
35 | * Description: MeasurementComputing PCI-DAS64xx, 60XX, and 4020 series | |
36 | * with the PLX 9080 PCI controller | |
37 | * Author: Frank Mori Hess <fmhess@users.sourceforge.net> | |
38 | * Status: works | |
39 | * Updated: Fri, 02 Nov 2012 18:58:55 +0000 | |
40 | * Devices: [Measurement Computing] PCI-DAS6402/16 (cb_pcidas64), | |
41 | * PCI-DAS6402/12, PCI-DAS64/M1/16, PCI-DAS64/M2/16, | |
42 | * PCI-DAS64/M3/16, PCI-DAS6402/16/JR, PCI-DAS64/M1/16/JR, | |
43 | * PCI-DAS64/M2/16/JR, PCI-DAS64/M3/16/JR, PCI-DAS64/M1/14, | |
44 | * PCI-DAS64/M2/14, PCI-DAS64/M3/14, PCI-DAS6013, PCI-DAS6014, | |
45 | * PCI-DAS6023, PCI-DAS6025, PCI-DAS6030, | |
46 | * PCI-DAS6031, PCI-DAS6032, PCI-DAS6033, PCI-DAS6034, | |
47 | * PCI-DAS6035, PCI-DAS6036, PCI-DAS6040, PCI-DAS6052, | |
48 | * PCI-DAS6070, PCI-DAS6071, PCI-DAS4020/12 | |
49 | * | |
50 | * Configuration options: | |
51 | * None. | |
52 | * | |
53 | * Manual attachment of PCI cards with the comedi_config utility is not | |
54 | * supported by this driver; they are attached automatically. | |
55 | * | |
56 | * These boards may be autocalibrated with the comedi_calibrate utility. | |
57 | * | |
58 | * To select the bnc trigger input on the 4020 (instead of the dio input), | |
59 | * specify a nonzero channel in the chanspec. If you wish to use an external | |
60 | * master clock on the 4020, you may do so by setting the scan_begin_src | |
61 | * to TRIG_OTHER, and using an INSN_CONFIG_TIMER_1 configuration insn | |
62 | * to configure the divisor to use for the external clock. | |
63 | * | |
64 | * Some devices are not identified because the PCI device IDs are not yet | |
65 | * known. If you have such a board, please let the maintainers know. | |
66 | */ | |
88b12a9a FMH |
67 | |
68 | /* | |
28fec2e6 AJ |
69 | * TODO: |
70 | * make it return error if user attempts an ai command that uses the | |
71 | * external queue, and an ao command simultaneously user counter subdevice | |
72 | * there are a number of boards this driver will support when they are | |
73 | * fully released, but does not yet since the pci device id numbers | |
74 | * are not yet available. | |
75 | * | |
76 | * support prescaled 100khz clock for slow pacing (not available on 6000 | |
77 | * series?) | |
78 | * | |
79 | * make ao fifo size adjustable like ai fifo | |
80 | */ | |
88b12a9a | 81 | |
ce157f80 | 82 | #include <linux/module.h> |
88b12a9a | 83 | #include <linux/delay.h> |
70265d24 | 84 | #include <linux/interrupt.h> |
88b12a9a | 85 | |
32640680 | 86 | #include "../comedi_pci.h" |
33782dd5 | 87 | |
88b12a9a FMH |
88 | #include "8255.h" |
89 | #include "plx9080.h" | |
88b12a9a | 90 | |
9ef4dea6 | 91 | #define TIMER_BASE 25 /* 40MHz master clock */ |
28fec2e6 AJ |
92 | /* |
93 | * 100kHz 'prescaled' clock for slow acquisition, | |
94 | * maybe I'll support this someday | |
95 | */ | |
46ca84c4 | 96 | #define PRESCALED_TIMER_BASE 10000 |
9f963096 AJ |
97 | #define DMA_BUFFER_SIZE 0x1000 |
98 | #define DAC_FIFO_SIZE 0x2000 | |
88b12a9a | 99 | |
28fec2e6 | 100 | /* maximum value that can be loaded into board's 24-bit counters */ |
88b12a9a FMH |
101 | static const int max_counter_value = 0xffffff; |
102 | ||
103 | /* PCI-DAS64xxx base addresses */ | |
104 | ||
681d335a | 105 | /* devpriv->main_iobase registers */ |
88b12a9a | 106 | enum write_only_registers { |
28fec2e6 AJ |
107 | INTR_ENABLE_REG = 0x0, /* interrupt enable register */ |
108 | HW_CONFIG_REG = 0x2, /* hardware config register */ | |
88b12a9a FMH |
109 | DAQ_SYNC_REG = 0xc, |
110 | DAQ_ATRIG_LOW_4020_REG = 0xc, | |
28fec2e6 AJ |
111 | ADC_CONTROL0_REG = 0x10, /* adc control register 0 */ |
112 | ADC_CONTROL1_REG = 0x12, /* adc control register 1 */ | |
88b12a9a | 113 | CALIBRATION_REG = 0x14, |
28fec2e6 | 114 | /* lower 16 bits of adc sample interval counter */ |
46ca84c4 | 115 | ADC_SAMPLE_INTERVAL_LOWER_REG = 0x16, |
28fec2e6 | 116 | /* upper 8 bits of adc sample interval counter */ |
46ca84c4 | 117 | ADC_SAMPLE_INTERVAL_UPPER_REG = 0x18, |
28fec2e6 | 118 | /* lower 16 bits of delay interval counter */ |
46ca84c4 | 119 | ADC_DELAY_INTERVAL_LOWER_REG = 0x1a, |
28fec2e6 | 120 | /* upper 8 bits of delay interval counter */ |
46ca84c4 | 121 | ADC_DELAY_INTERVAL_UPPER_REG = 0x1c, |
28fec2e6 | 122 | /* lower 16 bits of hardware conversion/scan counter */ |
46ca84c4 | 123 | ADC_COUNT_LOWER_REG = 0x1e, |
28fec2e6 | 124 | /* upper 8 bits of hardware conversion/scan counter */ |
46ca84c4 | 125 | ADC_COUNT_UPPER_REG = 0x20, |
28fec2e6 AJ |
126 | ADC_START_REG = 0x22, /* software trigger to start acquisition */ |
127 | ADC_CONVERT_REG = 0x24, /* initiates single conversion */ | |
128 | ADC_QUEUE_CLEAR_REG = 0x26, /* clears adc queue */ | |
129 | ADC_QUEUE_LOAD_REG = 0x28, /* loads adc queue */ | |
88b12a9a | 130 | ADC_BUFFER_CLEAR_REG = 0x2a, |
28fec2e6 | 131 | /* high channel for internal queue, use adc_chan_bits() inline above */ |
46ca84c4 | 132 | ADC_QUEUE_HIGH_REG = 0x2c, |
28fec2e6 AJ |
133 | DAC_CONTROL0_REG = 0x50, /* dac control register 0 */ |
134 | DAC_CONTROL1_REG = 0x52, /* dac control register 0 */ | |
135 | /* lower 16 bits of dac sample interval counter */ | |
46ca84c4 | 136 | DAC_SAMPLE_INTERVAL_LOWER_REG = 0x54, |
28fec2e6 | 137 | /* upper 8 bits of dac sample interval counter */ |
46ca84c4 | 138 | DAC_SAMPLE_INTERVAL_UPPER_REG = 0x56, |
88b12a9a FMH |
139 | DAC_SELECT_REG = 0x60, |
140 | DAC_START_REG = 0x64, | |
28fec2e6 | 141 | DAC_BUFFER_CLEAR_REG = 0x66, /* clear dac buffer */ |
88b12a9a | 142 | }; |
46ca84c4 | 143 | |
88b12a9a FMH |
144 | static inline unsigned int dac_convert_reg(unsigned int channel) |
145 | { | |
146 | return 0x70 + (2 * (channel & 0x1)); | |
147 | } | |
0a85b6f0 | 148 | |
88b12a9a FMH |
149 | static inline unsigned int dac_lsb_4020_reg(unsigned int channel) |
150 | { | |
151 | return 0x70 + (4 * (channel & 0x1)); | |
152 | } | |
0a85b6f0 | 153 | |
88b12a9a FMH |
154 | static inline unsigned int dac_msb_4020_reg(unsigned int channel) |
155 | { | |
156 | return 0x72 + (4 * (channel & 0x1)); | |
157 | } | |
158 | ||
159 | enum read_only_registers { | |
85c12b82 AD |
160 | /* |
161 | * hardware status register, | |
162 | * reading this apparently clears pending interrupts as well | |
163 | */ | |
46ca84c4 | 164 | HW_STATUS_REG = 0x0, |
88b12a9a FMH |
165 | PIPE1_READ_REG = 0x4, |
166 | ADC_READ_PNTR_REG = 0x8, | |
167 | LOWER_XFER_REG = 0x10, | |
168 | ADC_WRITE_PNTR_REG = 0xc, | |
169 | PREPOST_REG = 0x14, | |
170 | }; | |
171 | ||
172 | enum read_write_registers { | |
12f992ad AJ |
173 | I8255_4020_REG = 0x48, /* 8255 offset, for 4020 only */ |
174 | /* external channel/gain queue, uses same bits as ADC_QUEUE_LOAD_REG */ | |
46ca84c4 | 175 | ADC_QUEUE_FIFO_REG = 0x100, |
88b12a9a | 176 | ADC_FIFO_REG = 0x200, /* adc data fifo */ |
46ca84c4 IA |
177 | /* dac data fifo, has weird interactions with external channel queue */ |
178 | DAC_FIFO_REG = 0x300, | |
88b12a9a FMH |
179 | }; |
180 | ||
9ebd1028 | 181 | /* dev->mmio registers */ |
88b12a9a FMH |
182 | enum dio_counter_registers { |
183 | DIO_8255_OFFSET = 0x0, | |
184 | DO_REG = 0x20, | |
185 | DI_REG = 0x28, | |
186 | DIO_DIRECTION_60XX_REG = 0x40, | |
187 | DIO_DATA_60XX_REG = 0x48, | |
188 | }; | |
189 | ||
9ef4dea6 | 190 | /* bit definitions for write-only registers */ |
88b12a9a FMH |
191 | |
192 | enum intr_enable_contents { | |
12f992ad AJ |
193 | ADC_INTR_SRC_MASK = 0x3, /* adc interrupt source mask */ |
194 | ADC_INTR_QFULL_BITS = 0x0, /* interrupt fifo quarter full */ | |
195 | ADC_INTR_EOC_BITS = 0x1, /* interrupt end of conversion */ | |
196 | ADC_INTR_EOSCAN_BITS = 0x2, /* interrupt end of scan */ | |
197 | ADC_INTR_EOSEQ_BITS = 0x3, /* interrupt end of sequence mask */ | |
198 | EN_ADC_INTR_SRC_BIT = 0x4, /* enable adc interrupt source */ | |
199 | EN_ADC_DONE_INTR_BIT = 0x8, /* enable adc acquisition done intr */ | |
88b12a9a FMH |
200 | DAC_INTR_SRC_MASK = 0x30, |
201 | DAC_INTR_QEMPTY_BITS = 0x0, | |
202 | DAC_INTR_HIGH_CHAN_BITS = 0x10, | |
12f992ad | 203 | EN_DAC_INTR_SRC_BIT = 0x40, /* enable dac interrupt source */ |
88b12a9a | 204 | EN_DAC_DONE_INTR_BIT = 0x80, |
12f992ad AJ |
205 | EN_ADC_ACTIVE_INTR_BIT = 0x200, /* enable adc active interrupt */ |
206 | EN_ADC_STOP_INTR_BIT = 0x400, /* enable adc stop trigger interrupt */ | |
207 | EN_DAC_ACTIVE_INTR_BIT = 0x800, /* enable dac active interrupt */ | |
208 | EN_DAC_UNDERRUN_BIT = 0x4000, /* enable dac underrun status bit */ | |
209 | EN_ADC_OVERRUN_BIT = 0x8000, /* enable adc overrun status bit */ | |
88b12a9a FMH |
210 | }; |
211 | ||
212 | enum hw_config_contents { | |
12f992ad AJ |
213 | MASTER_CLOCK_4020_MASK = 0x3, /* master clock source mask for 4020 */ |
214 | INTERNAL_CLOCK_4020_BITS = 0x1, /* use 40 MHz internal master clock */ | |
215 | BNC_CLOCK_4020_BITS = 0x2, /* use BNC input for master clock */ | |
216 | EXT_CLOCK_4020_BITS = 0x3, /* use dio input for master clock */ | |
217 | EXT_QUEUE_BIT = 0x200, /* use external channel/gain queue */ | |
218 | /* use 225 nanosec strobe when loading dac instead of 50 nanosec */ | |
46ca84c4 | 219 | SLOW_DAC_BIT = 0x400, |
12f992ad AJ |
220 | /* |
221 | * bit with unknown function yet given as default value in pci-das64 | |
222 | * manual | |
28fec2e6 | 223 | */ |
46ca84c4 | 224 | HW_CONFIG_DUMMY_BITS = 0x2000, |
12f992ad | 225 | /* bit selects channels 1/0 for analog input/output, otherwise 0/1 */ |
46ca84c4 | 226 | DMA_CH_SELECT_BIT = 0x8000, |
12f992ad AJ |
227 | FIFO_SIZE_REG = 0x4, /* allows adjustment of fifo sizes */ |
228 | DAC_FIFO_SIZE_MASK = 0xff00, /* bits that set dac fifo size */ | |
229 | DAC_FIFO_BITS = 0xf800, /* 8k sample ao fifo */ | |
88b12a9a | 230 | }; |
88b12a9a FMH |
231 | |
232 | enum daq_atrig_low_4020_contents { | |
12f992ad | 233 | /* use trig/ext clk bnc input for analog gate signal */ |
46ca84c4 | 234 | EXT_AGATE_BNC_BIT = 0x8000, |
12f992ad | 235 | /* use trig/ext clk bnc input for external stop trigger signal */ |
46ca84c4 | 236 | EXT_STOP_TRIG_BNC_BIT = 0x4000, |
12f992ad | 237 | /* use trig/ext clk bnc input for external start trigger signal */ |
46ca84c4 | 238 | EXT_START_TRIG_BNC_BIT = 0x2000, |
88b12a9a | 239 | }; |
46ca84c4 | 240 | |
88b12a9a FMH |
241 | static inline uint16_t analog_trig_low_threshold_bits(uint16_t threshold) |
242 | { | |
243 | return threshold & 0xfff; | |
244 | } | |
245 | ||
246 | enum adc_control0_contents { | |
12f992ad AJ |
247 | ADC_GATE_SRC_MASK = 0x3, /* bits that select gate */ |
248 | ADC_SOFT_GATE_BITS = 0x1, /* software gate */ | |
249 | ADC_EXT_GATE_BITS = 0x2, /* external digital gate */ | |
250 | ADC_ANALOG_GATE_BITS = 0x3, /* analog level gate */ | |
251 | /* level-sensitive gate (for digital) */ | |
f51ff7e4 | 252 | ADC_GATE_LEVEL_BIT = 0x4, |
12f992ad | 253 | ADC_GATE_POLARITY_BIT = 0x8, /* gate active low */ |
88b12a9a FMH |
254 | ADC_START_TRIG_SOFT_BITS = 0x10, |
255 | ADC_START_TRIG_EXT_BITS = 0x20, | |
256 | ADC_START_TRIG_ANALOG_BITS = 0x30, | |
257 | ADC_START_TRIG_MASK = 0x30, | |
12f992ad AJ |
258 | ADC_START_TRIG_FALLING_BIT = 0x40, /* trig 1 uses falling edge */ |
259 | /* external pacing uses falling edge */ | |
46ca84c4 | 260 | ADC_EXT_CONV_FALLING_BIT = 0x800, |
12f992ad | 261 | /* enable hardware scan counter */ |
46ca84c4 | 262 | ADC_SAMPLE_COUNTER_EN_BIT = 0x1000, |
12f992ad AJ |
263 | ADC_DMA_DISABLE_BIT = 0x4000, /* disables dma */ |
264 | ADC_ENABLE_BIT = 0x8000, /* master adc enable */ | |
88b12a9a FMH |
265 | }; |
266 | ||
267 | enum adc_control1_contents { | |
12f992ad | 268 | /* should be set for boards with > 16 channels */ |
46ca84c4 | 269 | ADC_QUEUE_CONFIG_BIT = 0x1, |
88b12a9a FMH |
270 | CONVERT_POLARITY_BIT = 0x10, |
271 | EOC_POLARITY_BIT = 0x20, | |
12f992ad AJ |
272 | ADC_SW_GATE_BIT = 0x40, /* software gate of adc */ |
273 | ADC_DITHER_BIT = 0x200, /* turn on extra noise for dithering */ | |
88b12a9a FMH |
274 | RETRIGGER_BIT = 0x800, |
275 | ADC_LO_CHANNEL_4020_MASK = 0x300, | |
276 | ADC_HI_CHANNEL_4020_MASK = 0xc00, | |
12f992ad AJ |
277 | TWO_CHANNEL_4020_BITS = 0x1000, /* two channel mode for 4020 */ |
278 | FOUR_CHANNEL_4020_BITS = 0x2000, /* four channel mode for 4020 */ | |
88b12a9a FMH |
279 | CHANNEL_MODE_4020_MASK = 0x3000, |
280 | ADC_MODE_MASK = 0xf000, | |
281 | }; | |
46ca84c4 | 282 | |
88b12a9a FMH |
283 | static inline uint16_t adc_lo_chan_4020_bits(unsigned int channel) |
284 | { | |
285 | return (channel & 0x3) << 8; | |
286 | }; | |
0a85b6f0 | 287 | |
88b12a9a FMH |
288 | static inline uint16_t adc_hi_chan_4020_bits(unsigned int channel) |
289 | { | |
290 | return (channel & 0x3) << 10; | |
291 | }; | |
0a85b6f0 | 292 | |
88b12a9a FMH |
293 | static inline uint16_t adc_mode_bits(unsigned int mode) |
294 | { | |
295 | return (mode & 0xf) << 12; | |
296 | }; | |
297 | ||
298 | enum calibration_contents { | |
299 | SELECT_8800_BIT = 0x1, | |
300 | SELECT_8402_64XX_BIT = 0x2, | |
301 | SELECT_1590_60XX_BIT = 0x2, | |
12f992ad | 302 | CAL_EN_64XX_BIT = 0x40, /* calibration enable for 64xx series */ |
88b12a9a FMH |
303 | SERIAL_DATA_IN_BIT = 0x80, |
304 | SERIAL_CLOCK_BIT = 0x100, | |
12f992ad | 305 | CAL_EN_60XX_BIT = 0x200, /* calibration enable for 60xx series */ |
88b12a9a FMH |
306 | CAL_GAIN_BIT = 0x800, |
307 | }; | |
46ca84c4 | 308 | |
85c12b82 AD |
309 | /* |
310 | * calibration sources for 6025 are: | |
88b12a9a FMH |
311 | * 0 : ground |
312 | * 1 : 10V | |
313 | * 2 : 5V | |
314 | * 3 : 0.5V | |
315 | * 4 : 0.05V | |
316 | * 5 : ground | |
317 | * 6 : dac channel 0 | |
318 | * 7 : dac channel 1 | |
319 | */ | |
46ca84c4 | 320 | |
88b12a9a FMH |
321 | static inline uint16_t adc_src_bits(unsigned int source) |
322 | { | |
323 | return (source & 0xf) << 3; | |
324 | }; | |
325 | ||
326 | static inline uint16_t adc_convert_chan_4020_bits(unsigned int channel) | |
327 | { | |
328 | return (channel & 0x3) << 8; | |
329 | }; | |
330 | ||
331 | enum adc_queue_load_contents { | |
12f992ad AJ |
332 | UNIP_BIT = 0x800, /* unipolar/bipolar bit */ |
333 | ADC_SE_DIFF_BIT = 0x1000, /* single-ended/ differential bit */ | |
334 | /* non-referenced single-ended (common-mode input) */ | |
46ca84c4 | 335 | ADC_COMMON_BIT = 0x2000, |
12f992ad AJ |
336 | QUEUE_EOSEQ_BIT = 0x4000, /* queue end of sequence */ |
337 | QUEUE_EOSCAN_BIT = 0x8000, /* queue end of scan */ | |
88b12a9a | 338 | }; |
46ca84c4 | 339 | |
88b12a9a FMH |
340 | static inline uint16_t adc_chan_bits(unsigned int channel) |
341 | { | |
342 | return channel & 0x3f; | |
343 | }; | |
344 | ||
345 | enum dac_control0_contents { | |
12f992ad | 346 | DAC_ENABLE_BIT = 0x8000, /* dac controller enable bit */ |
88b12a9a FMH |
347 | DAC_CYCLIC_STOP_BIT = 0x4000, |
348 | DAC_WAVEFORM_MODE_BIT = 0x100, | |
349 | DAC_EXT_UPDATE_FALLING_BIT = 0x80, | |
350 | DAC_EXT_UPDATE_ENABLE_BIT = 0x40, | |
351 | WAVEFORM_TRIG_MASK = 0x30, | |
352 | WAVEFORM_TRIG_DISABLED_BITS = 0x0, | |
353 | WAVEFORM_TRIG_SOFT_BITS = 0x10, | |
354 | WAVEFORM_TRIG_EXT_BITS = 0x20, | |
355 | WAVEFORM_TRIG_ADC1_BITS = 0x30, | |
356 | WAVEFORM_TRIG_FALLING_BIT = 0x8, | |
357 | WAVEFORM_GATE_LEVEL_BIT = 0x4, | |
358 | WAVEFORM_GATE_ENABLE_BIT = 0x2, | |
359 | WAVEFORM_GATE_SELECT_BIT = 0x1, | |
360 | }; | |
361 | ||
362 | enum dac_control1_contents { | |
363 | DAC_WRITE_POLARITY_BIT = 0x800, /* board-dependent setting */ | |
364 | DAC1_EXT_REF_BIT = 0x200, | |
365 | DAC0_EXT_REF_BIT = 0x100, | |
12f992ad | 366 | DAC_OUTPUT_ENABLE_BIT = 0x80, /* dac output enable bit */ |
88b12a9a FMH |
367 | DAC_UPDATE_POLARITY_BIT = 0x40, /* board-dependent setting */ |
368 | DAC_SW_GATE_BIT = 0x20, | |
369 | DAC1_UNIPOLAR_BIT = 0x8, | |
370 | DAC0_UNIPOLAR_BIT = 0x2, | |
371 | }; | |
372 | ||
9ef4dea6 | 373 | /* bit definitions for read-only registers */ |
88b12a9a FMH |
374 | enum hw_status_contents { |
375 | DAC_UNDERRUN_BIT = 0x1, | |
376 | ADC_OVERRUN_BIT = 0x2, | |
377 | DAC_ACTIVE_BIT = 0x4, | |
378 | ADC_ACTIVE_BIT = 0x8, | |
379 | DAC_INTR_PENDING_BIT = 0x10, | |
380 | ADC_INTR_PENDING_BIT = 0x20, | |
381 | DAC_DONE_BIT = 0x40, | |
382 | ADC_DONE_BIT = 0x80, | |
383 | EXT_INTR_PENDING_BIT = 0x100, | |
384 | ADC_STOP_BIT = 0x200, | |
385 | }; | |
46ca84c4 | 386 | |
88b12a9a FMH |
387 | static inline uint16_t pipe_full_bits(uint16_t hw_status_bits) |
388 | { | |
389 | return (hw_status_bits >> 10) & 0x3; | |
390 | }; | |
391 | ||
392 | static inline unsigned int dma_chain_flag_bits(uint16_t prepost_bits) | |
393 | { | |
394 | return (prepost_bits >> 6) & 0x3; | |
395 | } | |
0a85b6f0 | 396 | |
88b12a9a FMH |
397 | static inline unsigned int adc_upper_read_ptr_code(uint16_t prepost_bits) |
398 | { | |
399 | return (prepost_bits >> 12) & 0x3; | |
400 | } | |
0a85b6f0 | 401 | |
88b12a9a FMH |
402 | static inline unsigned int adc_upper_write_ptr_code(uint16_t prepost_bits) |
403 | { | |
404 | return (prepost_bits >> 14) & 0x3; | |
405 | } | |
406 | ||
9ef4dea6 | 407 | /* I2C addresses for 4020 */ |
88b12a9a FMH |
408 | enum i2c_addresses { |
409 | RANGE_CAL_I2C_ADDR = 0x20, | |
410 | CALDAC0_I2C_ADDR = 0xc, | |
411 | CALDAC1_I2C_ADDR = 0xd, | |
412 | }; | |
413 | ||
414 | enum range_cal_i2c_contents { | |
12f992ad | 415 | /* bits that set what source the adc converter measures */ |
46ca84c4 | 416 | ADC_SRC_4020_MASK = 0x70, |
12f992ad | 417 | /* make bnc trig/ext clock threshold 0V instead of 2.5V */ |
46ca84c4 | 418 | BNC_TRIG_THRESHOLD_0V_BIT = 0x80, |
88b12a9a | 419 | }; |
46ca84c4 | 420 | |
88b12a9a FMH |
421 | static inline uint8_t adc_src_4020_bits(unsigned int source) |
422 | { | |
423 | return (source << 4) & ADC_SRC_4020_MASK; | |
424 | }; | |
0a85b6f0 | 425 | |
88b12a9a FMH |
426 | static inline uint8_t attenuate_bit(unsigned int channel) |
427 | { | |
12f992ad | 428 | /* attenuate channel (+-5V input range) */ |
88b12a9a FMH |
429 | return 1 << (channel & 0x3); |
430 | }; | |
431 | ||
9ef4dea6 | 432 | /* analog input ranges for 64xx boards */ |
9ced1de6 | 433 | static const struct comedi_lrange ai_ranges_64xx = { |
82dc1255 HS |
434 | 8, { |
435 | BIP_RANGE(10), | |
436 | BIP_RANGE(5), | |
437 | BIP_RANGE(2.5), | |
438 | BIP_RANGE(1.25), | |
439 | UNI_RANGE(10), | |
440 | UNI_RANGE(5), | |
441 | UNI_RANGE(2.5), | |
442 | UNI_RANGE(1.25) | |
443 | } | |
88b12a9a FMH |
444 | }; |
445 | ||
be8e8908 IA |
446 | static const uint8_t ai_range_code_64xx[8] = { |
447 | 0x0, 0x1, 0x2, 0x3, /* bipolar 10, 5, 2,5, 1.25 */ | |
448 | 0x8, 0x9, 0xa, 0xb /* unipolar 10, 5, 2.5, 1.25 */ | |
449 | }; | |
450 | ||
451 | /* analog input ranges for 64-Mx boards */ | |
452 | static const struct comedi_lrange ai_ranges_64_mx = { | |
453 | 7, { | |
454 | BIP_RANGE(5), | |
455 | BIP_RANGE(2.5), | |
456 | BIP_RANGE(1.25), | |
457 | BIP_RANGE(0.625), | |
458 | UNI_RANGE(5), | |
459 | UNI_RANGE(2.5), | |
460 | UNI_RANGE(1.25) | |
461 | } | |
462 | }; | |
463 | ||
464 | static const uint8_t ai_range_code_64_mx[7] = { | |
465 | 0x0, 0x1, 0x2, 0x3, /* bipolar 5, 2.5, 1.25, 0.625 */ | |
466 | 0x9, 0xa, 0xb /* unipolar 5, 2.5, 1.25 */ | |
467 | }; | |
468 | ||
88b12a9a | 469 | /* analog input ranges for 60xx boards */ |
9ced1de6 | 470 | static const struct comedi_lrange ai_ranges_60xx = { |
82dc1255 HS |
471 | 4, { |
472 | BIP_RANGE(10), | |
473 | BIP_RANGE(5), | |
474 | BIP_RANGE(0.5), | |
475 | BIP_RANGE(0.05) | |
476 | } | |
88b12a9a FMH |
477 | }; |
478 | ||
be8e8908 IA |
479 | static const uint8_t ai_range_code_60xx[4] = { |
480 | 0x0, 0x1, 0x4, 0x7 /* bipolar 10, 5, 0.5, 0.05 */ | |
481 | }; | |
482 | ||
88b12a9a | 483 | /* analog input ranges for 6030, etc boards */ |
9ced1de6 | 484 | static const struct comedi_lrange ai_ranges_6030 = { |
82dc1255 HS |
485 | 14, { |
486 | BIP_RANGE(10), | |
487 | BIP_RANGE(5), | |
488 | BIP_RANGE(2), | |
489 | BIP_RANGE(1), | |
490 | BIP_RANGE(0.5), | |
491 | BIP_RANGE(0.2), | |
492 | BIP_RANGE(0.1), | |
493 | UNI_RANGE(10), | |
494 | UNI_RANGE(5), | |
495 | UNI_RANGE(2), | |
496 | UNI_RANGE(1), | |
497 | UNI_RANGE(0.5), | |
498 | UNI_RANGE(0.2), | |
499 | UNI_RANGE(0.1) | |
500 | } | |
88b12a9a FMH |
501 | }; |
502 | ||
be8e8908 IA |
503 | static const uint8_t ai_range_code_6030[14] = { |
504 | 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, /* bip 10, 5, 2, 1, 0.5, 0.2, 0.1 */ | |
505 | 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf /* uni 10, 5, 2, 1, 0.5, 0.2, 0.1 */ | |
506 | }; | |
507 | ||
88b12a9a | 508 | /* analog input ranges for 6052, etc boards */ |
9ced1de6 | 509 | static const struct comedi_lrange ai_ranges_6052 = { |
82dc1255 HS |
510 | 15, { |
511 | BIP_RANGE(10), | |
512 | BIP_RANGE(5), | |
513 | BIP_RANGE(2.5), | |
514 | BIP_RANGE(1), | |
515 | BIP_RANGE(0.5), | |
516 | BIP_RANGE(0.25), | |
517 | BIP_RANGE(0.1), | |
518 | BIP_RANGE(0.05), | |
519 | UNI_RANGE(10), | |
520 | UNI_RANGE(5), | |
521 | UNI_RANGE(2), | |
522 | UNI_RANGE(1), | |
523 | UNI_RANGE(0.5), | |
524 | UNI_RANGE(0.2), | |
525 | UNI_RANGE(0.1) | |
526 | } | |
88b12a9a FMH |
527 | }; |
528 | ||
be8e8908 IA |
529 | static const uint8_t ai_range_code_6052[15] = { |
530 | 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, /* bipolar 10 ... 0.05 */ | |
531 | 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf /* unipolar 10 ... 0.1 */ | |
532 | }; | |
533 | ||
9ef4dea6 | 534 | /* analog input ranges for 4020 board */ |
9ced1de6 | 535 | static const struct comedi_lrange ai_ranges_4020 = { |
82dc1255 HS |
536 | 2, { |
537 | BIP_RANGE(5), | |
538 | BIP_RANGE(1) | |
539 | } | |
88b12a9a FMH |
540 | }; |
541 | ||
9ef4dea6 | 542 | /* analog output ranges */ |
9ced1de6 | 543 | static const struct comedi_lrange ao_ranges_64xx = { |
82dc1255 HS |
544 | 4, { |
545 | BIP_RANGE(5), | |
546 | BIP_RANGE(10), | |
547 | UNI_RANGE(5), | |
548 | UNI_RANGE(10) | |
549 | } | |
88b12a9a | 550 | }; |
0a85b6f0 | 551 | |
88b12a9a FMH |
552 | static const int ao_range_code_64xx[] = { |
553 | 0x0, | |
554 | 0x1, | |
555 | 0x2, | |
556 | 0x3, | |
557 | }; | |
558 | ||
88b12a9a FMH |
559 | static const int ao_range_code_60xx[] = { |
560 | 0x0, | |
561 | }; | |
562 | ||
9ced1de6 | 563 | static const struct comedi_lrange ao_ranges_6030 = { |
82dc1255 HS |
564 | 2, { |
565 | BIP_RANGE(10), | |
566 | UNI_RANGE(10) | |
567 | } | |
88b12a9a | 568 | }; |
0a85b6f0 | 569 | |
88b12a9a FMH |
570 | static const int ao_range_code_6030[] = { |
571 | 0x0, | |
572 | 0x2, | |
573 | }; | |
574 | ||
9ced1de6 | 575 | static const struct comedi_lrange ao_ranges_4020 = { |
82dc1255 HS |
576 | 2, { |
577 | BIP_RANGE(5), | |
578 | BIP_RANGE(10) | |
579 | } | |
88b12a9a | 580 | }; |
0a85b6f0 | 581 | |
88b12a9a FMH |
582 | static const int ao_range_code_4020[] = { |
583 | 0x1, | |
584 | 0x0, | |
585 | }; | |
586 | ||
587 | enum register_layout { | |
588 | LAYOUT_60XX, | |
589 | LAYOUT_64XX, | |
590 | LAYOUT_4020, | |
591 | }; | |
592 | ||
675935dd | 593 | struct hw_fifo_info { |
88b12a9a FMH |
594 | unsigned int num_segments; |
595 | unsigned int max_segment_length; | |
596 | unsigned int sample_packing_ratio; | |
597 | uint16_t fifo_size_reg_mask; | |
675935dd | 598 | }; |
88b12a9a | 599 | |
463740d4 HS |
600 | enum pcidas64_boardid { |
601 | BOARD_PCIDAS6402_16, | |
602 | BOARD_PCIDAS6402_12, | |
603 | BOARD_PCIDAS64_M1_16, | |
604 | BOARD_PCIDAS64_M2_16, | |
605 | BOARD_PCIDAS64_M3_16, | |
606 | BOARD_PCIDAS6013, | |
607 | BOARD_PCIDAS6014, | |
608 | BOARD_PCIDAS6023, | |
609 | BOARD_PCIDAS6025, | |
610 | BOARD_PCIDAS6030, | |
611 | BOARD_PCIDAS6031, | |
612 | BOARD_PCIDAS6032, | |
613 | BOARD_PCIDAS6033, | |
614 | BOARD_PCIDAS6034, | |
615 | BOARD_PCIDAS6035, | |
616 | BOARD_PCIDAS6036, | |
617 | BOARD_PCIDAS6040, | |
618 | BOARD_PCIDAS6052, | |
619 | BOARD_PCIDAS6070, | |
620 | BOARD_PCIDAS6071, | |
621 | BOARD_PCIDAS4020_12, | |
622 | BOARD_PCIDAS6402_16_JR, | |
623 | BOARD_PCIDAS64_M1_16_JR, | |
624 | BOARD_PCIDAS64_M2_16_JR, | |
625 | BOARD_PCIDAS64_M3_16_JR, | |
626 | BOARD_PCIDAS64_M1_14, | |
627 | BOARD_PCIDAS64_M2_14, | |
628 | BOARD_PCIDAS64_M3_14, | |
629 | }; | |
630 | ||
222ab1bc | 631 | struct pcidas64_board { |
88b12a9a | 632 | const char *name; |
12f992ad AJ |
633 | int ai_se_chans; /* number of ai inputs in single-ended mode */ |
634 | int ai_bits; /* analog input resolution */ | |
635 | int ai_speed; /* fastest conversion period in ns */ | |
9ced1de6 | 636 | const struct comedi_lrange *ai_range_table; |
be8e8908 | 637 | const uint8_t *ai_range_code; |
12f992ad AJ |
638 | int ao_nchan; /* number of analog out channels */ |
639 | int ao_bits; /* analog output resolution */ | |
640 | int ao_scan_speed; /* analog output scan speed */ | |
9ced1de6 | 641 | const struct comedi_lrange *ao_range_table; |
88b12a9a | 642 | const int *ao_range_code; |
675935dd | 643 | const struct hw_fifo_info *const ai_fifo; |
12f992ad | 644 | /* different board families have slightly different registers */ |
46ca84c4 | 645 | enum register_layout layout; |
88b12a9a | 646 | unsigned has_8255:1; |
222ab1bc | 647 | }; |
88b12a9a | 648 | |
675935dd | 649 | static const struct hw_fifo_info ai_fifo_4020 = { |
68c3dbff BP |
650 | .num_segments = 2, |
651 | .max_segment_length = 0x8000, | |
652 | .sample_packing_ratio = 2, | |
653 | .fifo_size_reg_mask = 0x7f, | |
88b12a9a FMH |
654 | }; |
655 | ||
675935dd | 656 | static const struct hw_fifo_info ai_fifo_64xx = { |
68c3dbff BP |
657 | .num_segments = 4, |
658 | .max_segment_length = 0x800, | |
659 | .sample_packing_ratio = 1, | |
660 | .fifo_size_reg_mask = 0x3f, | |
88b12a9a FMH |
661 | }; |
662 | ||
675935dd | 663 | static const struct hw_fifo_info ai_fifo_60xx = { |
68c3dbff BP |
664 | .num_segments = 4, |
665 | .max_segment_length = 0x800, | |
666 | .sample_packing_ratio = 1, | |
667 | .fifo_size_reg_mask = 0x7f, | |
88b12a9a FMH |
668 | }; |
669 | ||
85c12b82 AD |
670 | /* |
671 | * maximum number of dma transfers we will chain together into a ring | |
672 | * (and the maximum number of dma buffers we maintain) | |
673 | */ | |
88b12a9a FMH |
674 | #define MAX_AI_DMA_RING_COUNT (0x80000 / DMA_BUFFER_SIZE) |
675 | #define MIN_AI_DMA_RING_COUNT (0x10000 / DMA_BUFFER_SIZE) | |
676 | #define AO_DMA_RING_COUNT (0x10000 / DMA_BUFFER_SIZE) | |
b07244ce | 677 | static inline unsigned int ai_dma_ring_count(const struct pcidas64_board *board) |
88b12a9a FMH |
678 | { |
679 | if (board->layout == LAYOUT_4020) | |
680 | return MAX_AI_DMA_RING_COUNT; | |
4ffeead3 HS |
681 | |
682 | return MIN_AI_DMA_RING_COUNT; | |
88b12a9a FMH |
683 | } |
684 | ||
685 | static const int bytes_in_sample = 2; | |
686 | ||
222ab1bc | 687 | static const struct pcidas64_board pcidas64_boards[] = { |
463740d4 | 688 | [BOARD_PCIDAS6402_16] = { |
2ccdb964 HS |
689 | .name = "pci-das6402/16", |
690 | .ai_se_chans = 64, | |
691 | .ai_bits = 16, | |
692 | .ai_speed = 5000, | |
693 | .ao_nchan = 2, | |
694 | .ao_bits = 16, | |
695 | .ao_scan_speed = 10000, | |
696 | .layout = LAYOUT_64XX, | |
697 | .ai_range_table = &ai_ranges_64xx, | |
be8e8908 | 698 | .ai_range_code = ai_range_code_64xx, |
2ccdb964 HS |
699 | .ao_range_table = &ao_ranges_64xx, |
700 | .ao_range_code = ao_range_code_64xx, | |
701 | .ai_fifo = &ai_fifo_64xx, | |
702 | .has_8255 = 1, | |
703 | }, | |
463740d4 | 704 | [BOARD_PCIDAS6402_12] = { |
12f992ad | 705 | .name = "pci-das6402/12", /* XXX check */ |
2ccdb964 HS |
706 | .ai_se_chans = 64, |
707 | .ai_bits = 12, | |
708 | .ai_speed = 5000, | |
709 | .ao_nchan = 2, | |
710 | .ao_bits = 12, | |
711 | .ao_scan_speed = 10000, | |
712 | .layout = LAYOUT_64XX, | |
713 | .ai_range_table = &ai_ranges_64xx, | |
be8e8908 | 714 | .ai_range_code = ai_range_code_64xx, |
2ccdb964 HS |
715 | .ao_range_table = &ao_ranges_64xx, |
716 | .ao_range_code = ao_range_code_64xx, | |
717 | .ai_fifo = &ai_fifo_64xx, | |
718 | .has_8255 = 1, | |
719 | }, | |
463740d4 | 720 | [BOARD_PCIDAS64_M1_16] = { |
2ccdb964 HS |
721 | .name = "pci-das64/m1/16", |
722 | .ai_se_chans = 64, | |
723 | .ai_bits = 16, | |
724 | .ai_speed = 1000, | |
725 | .ao_nchan = 2, | |
726 | .ao_bits = 16, | |
727 | .ao_scan_speed = 10000, | |
728 | .layout = LAYOUT_64XX, | |
be8e8908 IA |
729 | .ai_range_table = &ai_ranges_64_mx, |
730 | .ai_range_code = ai_range_code_64_mx, | |
2ccdb964 HS |
731 | .ao_range_table = &ao_ranges_64xx, |
732 | .ao_range_code = ao_range_code_64xx, | |
733 | .ai_fifo = &ai_fifo_64xx, | |
734 | .has_8255 = 1, | |
735 | }, | |
463740d4 | 736 | [BOARD_PCIDAS64_M2_16] = { |
2ccdb964 HS |
737 | .name = "pci-das64/m2/16", |
738 | .ai_se_chans = 64, | |
739 | .ai_bits = 16, | |
740 | .ai_speed = 500, | |
741 | .ao_nchan = 2, | |
742 | .ao_bits = 16, | |
743 | .ao_scan_speed = 10000, | |
744 | .layout = LAYOUT_64XX, | |
be8e8908 IA |
745 | .ai_range_table = &ai_ranges_64_mx, |
746 | .ai_range_code = ai_range_code_64_mx, | |
2ccdb964 HS |
747 | .ao_range_table = &ao_ranges_64xx, |
748 | .ao_range_code = ao_range_code_64xx, | |
749 | .ai_fifo = &ai_fifo_64xx, | |
750 | .has_8255 = 1, | |
751 | }, | |
463740d4 | 752 | [BOARD_PCIDAS64_M3_16] = { |
2ccdb964 HS |
753 | .name = "pci-das64/m3/16", |
754 | .ai_se_chans = 64, | |
755 | .ai_bits = 16, | |
756 | .ai_speed = 333, | |
757 | .ao_nchan = 2, | |
758 | .ao_bits = 16, | |
759 | .ao_scan_speed = 10000, | |
760 | .layout = LAYOUT_64XX, | |
be8e8908 IA |
761 | .ai_range_table = &ai_ranges_64_mx, |
762 | .ai_range_code = ai_range_code_64_mx, | |
2ccdb964 HS |
763 | .ao_range_table = &ao_ranges_64xx, |
764 | .ao_range_code = ao_range_code_64xx, | |
765 | .ai_fifo = &ai_fifo_64xx, | |
766 | .has_8255 = 1, | |
767 | }, | |
463740d4 | 768 | [BOARD_PCIDAS6013] = { |
2ccdb964 HS |
769 | .name = "pci-das6013", |
770 | .ai_se_chans = 16, | |
771 | .ai_bits = 16, | |
772 | .ai_speed = 5000, | |
773 | .ao_nchan = 0, | |
774 | .ao_bits = 16, | |
775 | .layout = LAYOUT_60XX, | |
776 | .ai_range_table = &ai_ranges_60xx, | |
be8e8908 | 777 | .ai_range_code = ai_range_code_60xx, |
7cf24bb4 | 778 | .ao_range_table = &range_bipolar10, |
2ccdb964 HS |
779 | .ao_range_code = ao_range_code_60xx, |
780 | .ai_fifo = &ai_fifo_60xx, | |
781 | .has_8255 = 0, | |
782 | }, | |
463740d4 | 783 | [BOARD_PCIDAS6014] = { |
2ccdb964 HS |
784 | .name = "pci-das6014", |
785 | .ai_se_chans = 16, | |
786 | .ai_bits = 16, | |
787 | .ai_speed = 5000, | |
788 | .ao_nchan = 2, | |
789 | .ao_bits = 16, | |
790 | .ao_scan_speed = 100000, | |
791 | .layout = LAYOUT_60XX, | |
792 | .ai_range_table = &ai_ranges_60xx, | |
be8e8908 | 793 | .ai_range_code = ai_range_code_60xx, |
7cf24bb4 | 794 | .ao_range_table = &range_bipolar10, |
2ccdb964 HS |
795 | .ao_range_code = ao_range_code_60xx, |
796 | .ai_fifo = &ai_fifo_60xx, | |
797 | .has_8255 = 0, | |
798 | }, | |
463740d4 | 799 | [BOARD_PCIDAS6023] = { |
2ccdb964 HS |
800 | .name = "pci-das6023", |
801 | .ai_se_chans = 16, | |
802 | .ai_bits = 12, | |
803 | .ai_speed = 5000, | |
804 | .ao_nchan = 0, | |
805 | .ao_scan_speed = 100000, | |
806 | .layout = LAYOUT_60XX, | |
807 | .ai_range_table = &ai_ranges_60xx, | |
be8e8908 | 808 | .ai_range_code = ai_range_code_60xx, |
7cf24bb4 | 809 | .ao_range_table = &range_bipolar10, |
2ccdb964 HS |
810 | .ao_range_code = ao_range_code_60xx, |
811 | .ai_fifo = &ai_fifo_60xx, | |
812 | .has_8255 = 1, | |
813 | }, | |
463740d4 | 814 | [BOARD_PCIDAS6025] = { |
2ccdb964 HS |
815 | .name = "pci-das6025", |
816 | .ai_se_chans = 16, | |
817 | .ai_bits = 12, | |
818 | .ai_speed = 5000, | |
819 | .ao_nchan = 2, | |
820 | .ao_bits = 12, | |
821 | .ao_scan_speed = 100000, | |
822 | .layout = LAYOUT_60XX, | |
823 | .ai_range_table = &ai_ranges_60xx, | |
be8e8908 | 824 | .ai_range_code = ai_range_code_60xx, |
7cf24bb4 | 825 | .ao_range_table = &range_bipolar10, |
2ccdb964 HS |
826 | .ao_range_code = ao_range_code_60xx, |
827 | .ai_fifo = &ai_fifo_60xx, | |
828 | .has_8255 = 1, | |
829 | }, | |
463740d4 | 830 | [BOARD_PCIDAS6030] = { |
2ccdb964 HS |
831 | .name = "pci-das6030", |
832 | .ai_se_chans = 16, | |
833 | .ai_bits = 16, | |
834 | .ai_speed = 10000, | |
835 | .ao_nchan = 2, | |
836 | .ao_bits = 16, | |
837 | .ao_scan_speed = 10000, | |
838 | .layout = LAYOUT_60XX, | |
839 | .ai_range_table = &ai_ranges_6030, | |
be8e8908 | 840 | .ai_range_code = ai_range_code_6030, |
2ccdb964 HS |
841 | .ao_range_table = &ao_ranges_6030, |
842 | .ao_range_code = ao_range_code_6030, | |
843 | .ai_fifo = &ai_fifo_60xx, | |
844 | .has_8255 = 0, | |
845 | }, | |
463740d4 | 846 | [BOARD_PCIDAS6031] = { |
2ccdb964 HS |
847 | .name = "pci-das6031", |
848 | .ai_se_chans = 64, | |
849 | .ai_bits = 16, | |
850 | .ai_speed = 10000, | |
851 | .ao_nchan = 2, | |
852 | .ao_bits = 16, | |
853 | .ao_scan_speed = 10000, | |
854 | .layout = LAYOUT_60XX, | |
855 | .ai_range_table = &ai_ranges_6030, | |
be8e8908 | 856 | .ai_range_code = ai_range_code_6030, |
2ccdb964 HS |
857 | .ao_range_table = &ao_ranges_6030, |
858 | .ao_range_code = ao_range_code_6030, | |
859 | .ai_fifo = &ai_fifo_60xx, | |
860 | .has_8255 = 0, | |
861 | }, | |
463740d4 | 862 | [BOARD_PCIDAS6032] = { |
2ccdb964 HS |
863 | .name = "pci-das6032", |
864 | .ai_se_chans = 16, | |
865 | .ai_bits = 16, | |
866 | .ai_speed = 10000, | |
867 | .ao_nchan = 0, | |
868 | .layout = LAYOUT_60XX, | |
869 | .ai_range_table = &ai_ranges_6030, | |
be8e8908 | 870 | .ai_range_code = ai_range_code_6030, |
2ccdb964 HS |
871 | .ai_fifo = &ai_fifo_60xx, |
872 | .has_8255 = 0, | |
873 | }, | |
463740d4 | 874 | [BOARD_PCIDAS6033] = { |
2ccdb964 HS |
875 | .name = "pci-das6033", |
876 | .ai_se_chans = 64, | |
877 | .ai_bits = 16, | |
878 | .ai_speed = 10000, | |
879 | .ao_nchan = 0, | |
880 | .layout = LAYOUT_60XX, | |
881 | .ai_range_table = &ai_ranges_6030, | |
be8e8908 | 882 | .ai_range_code = ai_range_code_6030, |
2ccdb964 HS |
883 | .ai_fifo = &ai_fifo_60xx, |
884 | .has_8255 = 0, | |
885 | }, | |
463740d4 | 886 | [BOARD_PCIDAS6034] = { |
2ccdb964 HS |
887 | .name = "pci-das6034", |
888 | .ai_se_chans = 16, | |
889 | .ai_bits = 16, | |
890 | .ai_speed = 5000, | |
891 | .ao_nchan = 0, | |
892 | .ao_scan_speed = 0, | |
893 | .layout = LAYOUT_60XX, | |
894 | .ai_range_table = &ai_ranges_60xx, | |
be8e8908 | 895 | .ai_range_code = ai_range_code_60xx, |
2ccdb964 HS |
896 | .ai_fifo = &ai_fifo_60xx, |
897 | .has_8255 = 0, | |
898 | }, | |
463740d4 | 899 | [BOARD_PCIDAS6035] = { |
2ccdb964 HS |
900 | .name = "pci-das6035", |
901 | .ai_se_chans = 16, | |
902 | .ai_bits = 16, | |
903 | .ai_speed = 5000, | |
904 | .ao_nchan = 2, | |
905 | .ao_bits = 12, | |
906 | .ao_scan_speed = 100000, | |
907 | .layout = LAYOUT_60XX, | |
908 | .ai_range_table = &ai_ranges_60xx, | |
be8e8908 | 909 | .ai_range_code = ai_range_code_60xx, |
7cf24bb4 | 910 | .ao_range_table = &range_bipolar10, |
2ccdb964 HS |
911 | .ao_range_code = ao_range_code_60xx, |
912 | .ai_fifo = &ai_fifo_60xx, | |
913 | .has_8255 = 0, | |
914 | }, | |
463740d4 | 915 | [BOARD_PCIDAS6036] = { |
2ccdb964 HS |
916 | .name = "pci-das6036", |
917 | .ai_se_chans = 16, | |
918 | .ai_bits = 16, | |
919 | .ai_speed = 5000, | |
920 | .ao_nchan = 2, | |
921 | .ao_bits = 16, | |
922 | .ao_scan_speed = 100000, | |
923 | .layout = LAYOUT_60XX, | |
924 | .ai_range_table = &ai_ranges_60xx, | |
be8e8908 | 925 | .ai_range_code = ai_range_code_60xx, |
7cf24bb4 | 926 | .ao_range_table = &range_bipolar10, |
2ccdb964 HS |
927 | .ao_range_code = ao_range_code_60xx, |
928 | .ai_fifo = &ai_fifo_60xx, | |
929 | .has_8255 = 0, | |
930 | }, | |
463740d4 | 931 | [BOARD_PCIDAS6040] = { |
2ccdb964 HS |
932 | .name = "pci-das6040", |
933 | .ai_se_chans = 16, | |
934 | .ai_bits = 12, | |
935 | .ai_speed = 2000, | |
936 | .ao_nchan = 2, | |
937 | .ao_bits = 12, | |
938 | .ao_scan_speed = 1000, | |
939 | .layout = LAYOUT_60XX, | |
940 | .ai_range_table = &ai_ranges_6052, | |
be8e8908 | 941 | .ai_range_code = ai_range_code_6052, |
2ccdb964 HS |
942 | .ao_range_table = &ao_ranges_6030, |
943 | .ao_range_code = ao_range_code_6030, | |
944 | .ai_fifo = &ai_fifo_60xx, | |
945 | .has_8255 = 0, | |
946 | }, | |
463740d4 | 947 | [BOARD_PCIDAS6052] = { |
2ccdb964 HS |
948 | .name = "pci-das6052", |
949 | .ai_se_chans = 16, | |
950 | .ai_bits = 16, | |
951 | .ai_speed = 3333, | |
952 | .ao_nchan = 2, | |
953 | .ao_bits = 16, | |
954 | .ao_scan_speed = 3333, | |
955 | .layout = LAYOUT_60XX, | |
956 | .ai_range_table = &ai_ranges_6052, | |
be8e8908 | 957 | .ai_range_code = ai_range_code_6052, |
2ccdb964 HS |
958 | .ao_range_table = &ao_ranges_6030, |
959 | .ao_range_code = ao_range_code_6030, | |
960 | .ai_fifo = &ai_fifo_60xx, | |
961 | .has_8255 = 0, | |
962 | }, | |
463740d4 | 963 | [BOARD_PCIDAS6070] = { |
2ccdb964 HS |
964 | .name = "pci-das6070", |
965 | .ai_se_chans = 16, | |
966 | .ai_bits = 12, | |
967 | .ai_speed = 800, | |
968 | .ao_nchan = 2, | |
969 | .ao_bits = 12, | |
970 | .ao_scan_speed = 1000, | |
971 | .layout = LAYOUT_60XX, | |
972 | .ai_range_table = &ai_ranges_6052, | |
be8e8908 | 973 | .ai_range_code = ai_range_code_6052, |
2ccdb964 HS |
974 | .ao_range_table = &ao_ranges_6030, |
975 | .ao_range_code = ao_range_code_6030, | |
976 | .ai_fifo = &ai_fifo_60xx, | |
977 | .has_8255 = 0, | |
978 | }, | |
463740d4 | 979 | [BOARD_PCIDAS6071] = { |
2ccdb964 HS |
980 | .name = "pci-das6071", |
981 | .ai_se_chans = 64, | |
982 | .ai_bits = 12, | |
983 | .ai_speed = 800, | |
984 | .ao_nchan = 2, | |
985 | .ao_bits = 12, | |
986 | .ao_scan_speed = 1000, | |
987 | .layout = LAYOUT_60XX, | |
988 | .ai_range_table = &ai_ranges_6052, | |
be8e8908 | 989 | .ai_range_code = ai_range_code_6052, |
2ccdb964 HS |
990 | .ao_range_table = &ao_ranges_6030, |
991 | .ao_range_code = ao_range_code_6030, | |
992 | .ai_fifo = &ai_fifo_60xx, | |
993 | .has_8255 = 0, | |
994 | }, | |
463740d4 | 995 | [BOARD_PCIDAS4020_12] = { |
2ccdb964 HS |
996 | .name = "pci-das4020/12", |
997 | .ai_se_chans = 4, | |
998 | .ai_bits = 12, | |
999 | .ai_speed = 50, | |
1000 | .ao_bits = 12, | |
1001 | .ao_nchan = 2, | |
12f992ad | 1002 | .ao_scan_speed = 0, /* no hardware pacing on ao */ |
2ccdb964 HS |
1003 | .layout = LAYOUT_4020, |
1004 | .ai_range_table = &ai_ranges_4020, | |
1005 | .ao_range_table = &ao_ranges_4020, | |
1006 | .ao_range_code = ao_range_code_4020, | |
1007 | .ai_fifo = &ai_fifo_4020, | |
1008 | .has_8255 = 1, | |
1009 | }, | |
88b12a9a | 1010 | #if 0 |
12f992ad | 1011 | /* The device id for these boards is unknown */ |
463740d4 HS |
1012 | |
1013 | [BOARD_PCIDAS6402_16_JR] = { | |
2ccdb964 HS |
1014 | .name = "pci-das6402/16/jr", |
1015 | .ai_se_chans = 64, | |
1016 | .ai_bits = 16, | |
1017 | .ai_speed = 5000, | |
1018 | .ao_nchan = 0, | |
1019 | .ao_scan_speed = 10000, | |
1020 | .layout = LAYOUT_64XX, | |
1021 | .ai_range_table = &ai_ranges_64xx, | |
be8e8908 | 1022 | .ai_range_code = ai_range_code_64xx, |
2ccdb964 HS |
1023 | .ai_fifo = ai_fifo_64xx, |
1024 | .has_8255 = 1, | |
1025 | }, | |
463740d4 | 1026 | [BOARD_PCIDAS64_M1_16_JR] = { |
2ccdb964 HS |
1027 | .name = "pci-das64/m1/16/jr", |
1028 | .ai_se_chans = 64, | |
1029 | .ai_bits = 16, | |
1030 | .ai_speed = 1000, | |
1031 | .ao_nchan = 0, | |
1032 | .ao_scan_speed = 10000, | |
1033 | .layout = LAYOUT_64XX, | |
be8e8908 IA |
1034 | .ai_range_table = &ai_ranges_64_mx, |
1035 | .ai_range_code = ai_range_code_64_mx, | |
2ccdb964 HS |
1036 | .ai_fifo = ai_fifo_64xx, |
1037 | .has_8255 = 1, | |
1038 | }, | |
463740d4 | 1039 | [BOARD_PCIDAS64_M2_16_JR] = { |
2ccdb964 HS |
1040 | .name = "pci-das64/m2/16/jr", |
1041 | .ai_se_chans = 64, | |
1042 | .ai_bits = 16, | |
1043 | .ai_speed = 500, | |
1044 | .ao_nchan = 0, | |
1045 | .ao_scan_speed = 10000, | |
1046 | .layout = LAYOUT_64XX, | |
be8e8908 IA |
1047 | .ai_range_table = &ai_ranges_64_mx, |
1048 | .ai_range_code = ai_range_code_64_mx, | |
2ccdb964 HS |
1049 | .ai_fifo = ai_fifo_64xx, |
1050 | .has_8255 = 1, | |
1051 | }, | |
463740d4 | 1052 | [BOARD_PCIDAS64_M3_16_JR] = { |
2ccdb964 HS |
1053 | .name = "pci-das64/m3/16/jr", |
1054 | .ai_se_chans = 64, | |
1055 | .ai_bits = 16, | |
1056 | .ai_speed = 333, | |
1057 | .ao_nchan = 0, | |
1058 | .ao_scan_speed = 10000, | |
1059 | .layout = LAYOUT_64XX, | |
be8e8908 IA |
1060 | .ai_range_table = &ai_ranges_64_mx, |
1061 | .ai_range_code = ai_range_code_64_mx, | |
2ccdb964 HS |
1062 | .ai_fifo = ai_fifo_64xx, |
1063 | .has_8255 = 1, | |
1064 | }, | |
463740d4 | 1065 | [BOARD_PCIDAS64_M1_14] = { |
2ccdb964 HS |
1066 | .name = "pci-das64/m1/14", |
1067 | .ai_se_chans = 64, | |
1068 | .ai_bits = 14, | |
1069 | .ai_speed = 1000, | |
1070 | .ao_nchan = 2, | |
1071 | .ao_scan_speed = 10000, | |
1072 | .layout = LAYOUT_64XX, | |
be8e8908 IA |
1073 | .ai_range_table = &ai_ranges_64_mx, |
1074 | .ai_range_code = ai_range_code_64_mx, | |
2ccdb964 HS |
1075 | .ai_fifo = ai_fifo_64xx, |
1076 | .has_8255 = 1, | |
1077 | }, | |
463740d4 | 1078 | [BOARD_PCIDAS64_M2_14] = { |
2ccdb964 HS |
1079 | .name = "pci-das64/m2/14", |
1080 | .ai_se_chans = 64, | |
1081 | .ai_bits = 14, | |
1082 | .ai_speed = 500, | |
1083 | .ao_nchan = 2, | |
1084 | .ao_scan_speed = 10000, | |
1085 | .layout = LAYOUT_64XX, | |
be8e8908 IA |
1086 | .ai_range_table = &ai_ranges_64_mx, |
1087 | .ai_range_code = ai_range_code_64_mx, | |
2ccdb964 HS |
1088 | .ai_fifo = ai_fifo_64xx, |
1089 | .has_8255 = 1, | |
1090 | }, | |
463740d4 | 1091 | [BOARD_PCIDAS64_M3_14] = { |
2ccdb964 HS |
1092 | .name = "pci-das64/m3/14", |
1093 | .ai_se_chans = 64, | |
1094 | .ai_bits = 14, | |
1095 | .ai_speed = 333, | |
1096 | .ao_nchan = 2, | |
1097 | .ao_scan_speed = 10000, | |
1098 | .layout = LAYOUT_64XX, | |
be8e8908 IA |
1099 | .ai_range_table = &ai_ranges_64_mx, |
1100 | .ai_range_code = ai_range_code_64_mx, | |
2ccdb964 HS |
1101 | .ai_fifo = ai_fifo_64xx, |
1102 | .has_8255 = 1, | |
1103 | }, | |
88b12a9a FMH |
1104 | #endif |
1105 | }; | |
1106 | ||
da91b269 | 1107 | static inline unsigned short se_diff_bit_6xxx(struct comedi_device *dev, |
0a85b6f0 | 1108 | int use_differential) |
88b12a9a | 1109 | { |
52762ad1 | 1110 | const struct pcidas64_board *board = dev->board_ptr; |
b07244ce | 1111 | |
52762ad1 HS |
1112 | if ((board->layout == LAYOUT_64XX && !use_differential) || |
1113 | (board->layout == LAYOUT_60XX && use_differential)) | |
88b12a9a | 1114 | return ADC_SE_DIFF_BIT; |
4ffeead3 HS |
1115 | |
1116 | return 0; | |
1117 | } | |
88b12a9a FMH |
1118 | |
1119 | struct ext_clock_info { | |
12f992ad | 1120 | /* master clock divisor to use for scans with external master clock */ |
46ca84c4 | 1121 | unsigned int divisor; |
12f992ad | 1122 | /* chanspec for master clock input when used as scan begin src */ |
46ca84c4 | 1123 | unsigned int chanspec; |
88b12a9a FMH |
1124 | }; |
1125 | ||
1126 | /* this structure is for data unique to this hardware driver. */ | |
450032a3 | 1127 | struct pcidas64_private { |
12f992ad | 1128 | /* base addresses (physical) */ |
88b12a9a FMH |
1129 | resource_size_t main_phys_iobase; |
1130 | resource_size_t dio_counter_phys_iobase; | |
12f992ad | 1131 | /* base addresses (ioremapped) */ |
f31d0008 GKH |
1132 | void __iomem *plx9080_iobase; |
1133 | void __iomem *main_iobase; | |
12f992ad | 1134 | /* local address (used by dma controller) */ |
88b12a9a FMH |
1135 | uint32_t local0_iobase; |
1136 | uint32_t local1_iobase; | |
12f992ad | 1137 | /* dma buffers for analog input */ |
46ca84c4 | 1138 | uint16_t *ai_buffer[MAX_AI_DMA_RING_COUNT]; |
12f992ad | 1139 | /* physical addresses of ai dma buffers */ |
46ca84c4 | 1140 | dma_addr_t ai_buffer_bus_addr[MAX_AI_DMA_RING_COUNT]; |
12f992ad AJ |
1141 | /* |
1142 | * array of ai dma descriptors read by plx9080, | |
1143 | * allocated to get proper alignment | |
28fec2e6 | 1144 | */ |
46ca84c4 | 1145 | struct plx_dma_desc *ai_dma_desc; |
12f992ad | 1146 | /* physical address of ai dma descriptor array */ |
46ca84c4 | 1147 | dma_addr_t ai_dma_desc_bus_addr; |
12f992ad AJ |
1148 | /* |
1149 | * index of the ai dma descriptor/buffer | |
1150 | * that is currently being used | |
28fec2e6 | 1151 | */ |
0f99981a | 1152 | unsigned int ai_dma_index; |
12f992ad | 1153 | /* dma buffers for analog output */ |
46ca84c4 | 1154 | uint16_t *ao_buffer[AO_DMA_RING_COUNT]; |
12f992ad | 1155 | /* physical addresses of ao dma buffers */ |
46ca84c4 | 1156 | dma_addr_t ao_buffer_bus_addr[AO_DMA_RING_COUNT]; |
88b12a9a FMH |
1157 | struct plx_dma_desc *ao_dma_desc; |
1158 | dma_addr_t ao_dma_desc_bus_addr; | |
12f992ad | 1159 | /* keeps track of buffer where the next ao sample should go */ |
0f99981a | 1160 | unsigned int ao_dma_index; |
12f992ad AJ |
1161 | unsigned int hw_revision; /* stc chip hardware revision number */ |
1162 | /* last bits sent to INTR_ENABLE_REG register */ | |
0f99981a | 1163 | unsigned int intr_enable_bits; |
12f992ad | 1164 | /* last bits sent to ADC_CONTROL1_REG register */ |
0f99981a | 1165 | uint16_t adc_control1_bits; |
12f992ad | 1166 | /* last bits sent to FIFO_SIZE_REG register */ |
0f99981a | 1167 | uint16_t fifo_size_bits; |
12f992ad | 1168 | /* last bits sent to HW_CONFIG_REG register */ |
0f99981a HS |
1169 | uint16_t hw_config_bits; |
1170 | uint16_t dac_control1_bits; | |
12f992ad | 1171 | /* last bits written to plx9080 control register */ |
0f99981a | 1172 | uint32_t plx_control_bits; |
12f992ad | 1173 | /* last bits written to plx interrupt control and status register */ |
0f99981a | 1174 | uint32_t plx_intcsr_bits; |
12f992ad | 1175 | /* index of calibration source readable through ai ch0 */ |
0f99981a | 1176 | int calibration_source; |
12f992ad | 1177 | /* bits written to i2c calibration/range register */ |
0f99981a | 1178 | uint8_t i2c_cal_range_bits; |
12f992ad | 1179 | /* configure digital triggers to trigger on falling edge */ |
0f99981a | 1180 | unsigned int ext_trig_falling; |
0f99981a | 1181 | short ai_cmd_running; |
88b12a9a FMH |
1182 | unsigned int ai_fifo_segment_length; |
1183 | struct ext_clock_info ext_clock; | |
05220638 | 1184 | unsigned short ao_bounce_buffer[DAC_FIFO_SIZE]; |
450032a3 BP |
1185 | }; |
1186 | ||
814900c9 | 1187 | static unsigned int ai_range_bits_6xxx(const struct comedi_device *dev, |
0a85b6f0 | 1188 | unsigned int range_index) |
88b12a9a | 1189 | { |
52762ad1 | 1190 | const struct pcidas64_board *board = dev->board_ptr; |
be8e8908 | 1191 | |
52762ad1 | 1192 | return board->ai_range_code[range_index] << 8; |
88b12a9a FMH |
1193 | } |
1194 | ||
da91b269 | 1195 | static unsigned int hw_revision(const struct comedi_device *dev, |
0a85b6f0 | 1196 | uint16_t hw_status_bits) |
88b12a9a | 1197 | { |
52762ad1 | 1198 | const struct pcidas64_board *board = dev->board_ptr; |
b07244ce | 1199 | |
52762ad1 | 1200 | if (board->layout == LAYOUT_4020) |
88b12a9a FMH |
1201 | return (hw_status_bits >> 13) & 0x7; |
1202 | ||
1203 | return (hw_status_bits >> 12) & 0xf; | |
1204 | } | |
1205 | ||
0a85b6f0 | 1206 | static void set_dac_range_bits(struct comedi_device *dev, |
350a3276 | 1207 | uint16_t *bits, unsigned int channel, |
0a85b6f0 | 1208 | unsigned int range) |
88b12a9a | 1209 | { |
52762ad1 HS |
1210 | const struct pcidas64_board *board = dev->board_ptr; |
1211 | unsigned int code = board->ao_range_code[range]; | |
88b12a9a FMH |
1212 | |
1213 | if (channel > 1) | |
e176d78c | 1214 | dev_err(dev->class_dev, "bug! bad channel?\n"); |
88b12a9a | 1215 | if (code & ~0x3) |
e176d78c | 1216 | dev_err(dev->class_dev, "bug! bad range code?\n"); |
88b12a9a FMH |
1217 | |
1218 | *bits &= ~(0x3 << (2 * channel)); | |
1219 | *bits |= code << (2 * channel); | |
1220 | }; | |
1221 | ||
da91b269 | 1222 | static inline int ao_cmd_is_supported(const struct pcidas64_board *board) |
88b12a9a FMH |
1223 | { |
1224 | return board->ao_nchan && board->layout != LAYOUT_4020; | |
1225 | } | |
1226 | ||
012e642c IA |
1227 | static void abort_dma(struct comedi_device *dev, unsigned int channel) |
1228 | { | |
1229 | struct pcidas64_private *devpriv = dev->private; | |
1230 | unsigned long flags; | |
1231 | ||
12f992ad | 1232 | /* spinlock for plx dma control/status reg */ |
012e642c IA |
1233 | spin_lock_irqsave(&dev->spinlock, flags); |
1234 | ||
1235 | plx9080_abort_dma(devpriv->plx9080_iobase, channel); | |
1236 | ||
1237 | spin_unlock_irqrestore(&dev->spinlock, flags); | |
1238 | } | |
1239 | ||
dd379fa2 IA |
1240 | static void disable_plx_interrupts(struct comedi_device *dev) |
1241 | { | |
1242 | struct pcidas64_private *devpriv = dev->private; | |
1243 | ||
1244 | devpriv->plx_intcsr_bits = 0; | |
1245 | writel(devpriv->plx_intcsr_bits, | |
c644a11a | 1246 | devpriv->plx9080_iobase + PLX_REG_INTCSR); |
dd379fa2 IA |
1247 | } |
1248 | ||
1249 | static void disable_ai_interrupts(struct comedi_device *dev) | |
1250 | { | |
1251 | struct pcidas64_private *devpriv = dev->private; | |
1252 | unsigned long flags; | |
1253 | ||
1254 | spin_lock_irqsave(&dev->spinlock, flags); | |
1255 | devpriv->intr_enable_bits &= | |
1256 | ~EN_ADC_INTR_SRC_BIT & ~EN_ADC_DONE_INTR_BIT & | |
1257 | ~EN_ADC_ACTIVE_INTR_BIT & ~EN_ADC_STOP_INTR_BIT & | |
1258 | ~EN_ADC_OVERRUN_BIT & ~ADC_INTR_SRC_MASK; | |
1259 | writew(devpriv->intr_enable_bits, | |
1260 | devpriv->main_iobase + INTR_ENABLE_REG); | |
1261 | spin_unlock_irqrestore(&dev->spinlock, flags); | |
dd379fa2 IA |
1262 | } |
1263 | ||
1264 | static void enable_ai_interrupts(struct comedi_device *dev, | |
1265 | const struct comedi_cmd *cmd) | |
1266 | { | |
52762ad1 | 1267 | const struct pcidas64_board *board = dev->board_ptr; |
dd379fa2 IA |
1268 | struct pcidas64_private *devpriv = dev->private; |
1269 | uint32_t bits; | |
1270 | unsigned long flags; | |
1271 | ||
1272 | bits = EN_ADC_OVERRUN_BIT | EN_ADC_DONE_INTR_BIT | | |
1273 | EN_ADC_ACTIVE_INTR_BIT | EN_ADC_STOP_INTR_BIT; | |
85c12b82 AD |
1274 | /* |
1275 | * Use pio transfer and interrupt on end of conversion | |
1276 | * if CMDF_WAKE_EOS flag is set. | |
1277 | */ | |
0ad08e4b | 1278 | if (cmd->flags & CMDF_WAKE_EOS) { |
12f992ad | 1279 | /* 4020 doesn't support pio transfers except for fifo dregs */ |
52762ad1 | 1280 | if (board->layout != LAYOUT_4020) |
dd379fa2 IA |
1281 | bits |= ADC_INTR_EOSCAN_BITS | EN_ADC_INTR_SRC_BIT; |
1282 | } | |
1283 | spin_lock_irqsave(&dev->spinlock, flags); | |
1284 | devpriv->intr_enable_bits |= bits; | |
1285 | writew(devpriv->intr_enable_bits, | |
1286 | devpriv->main_iobase + INTR_ENABLE_REG); | |
dd379fa2 IA |
1287 | spin_unlock_irqrestore(&dev->spinlock, flags); |
1288 | } | |
1289 | ||
9ef4dea6 | 1290 | /* initialize plx9080 chip */ |
da91b269 | 1291 | static void init_plx9080(struct comedi_device *dev) |
88b12a9a | 1292 | { |
52762ad1 | 1293 | const struct pcidas64_board *board = dev->board_ptr; |
681d335a | 1294 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a | 1295 | uint32_t bits; |
681d335a | 1296 | void __iomem *plx_iobase = devpriv->plx9080_iobase; |
88b12a9a | 1297 | |
681d335a | 1298 | devpriv->plx_control_bits = |
c644a11a | 1299 | readl(devpriv->plx9080_iobase + PLX_REG_CNTRL); |
88b12a9a | 1300 | |
88b12a9a | 1301 | #ifdef __BIG_ENDIAN |
a9c254a7 | 1302 | bits = PLX_BIGEND_DMA0 | PLX_BIGEND_DMA1; |
88b12a9a FMH |
1303 | #else |
1304 | bits = 0; | |
1305 | #endif | |
c644a11a | 1306 | writel(bits, devpriv->plx9080_iobase + PLX_REG_BIGEND); |
88b12a9a FMH |
1307 | |
1308 | disable_plx_interrupts(dev); | |
1309 | ||
1310 | abort_dma(dev, 0); | |
1311 | abort_dma(dev, 1); | |
1312 | ||
12f992ad | 1313 | /* configure dma0 mode */ |
88b12a9a | 1314 | bits = 0; |
12f992ad | 1315 | /* enable ready input, not sure if this is necessary */ |
65bf53de | 1316 | bits |= PLX_DMAMODE_READYIEN; |
12f992ad | 1317 | /* enable bterm, not sure if this is necessary */ |
65bf53de | 1318 | bits |= PLX_DMAMODE_BTERMIEN; |
12f992ad | 1319 | /* enable dma chaining */ |
65bf53de | 1320 | bits |= PLX_DMAMODE_CHAINEN; |
12f992ad AJ |
1321 | /* |
1322 | * enable interrupt on dma done | |
1323 | * (probably don't need this, since chain never finishes) | |
28fec2e6 | 1324 | */ |
65bf53de | 1325 | bits |= PLX_DMAMODE_DONEIEN; |
12f992ad AJ |
1326 | /* |
1327 | * don't increment local address during transfers | |
1328 | * (we are transferring from a fixed fifo register) | |
28fec2e6 | 1329 | */ |
65bf53de | 1330 | bits |= PLX_DMAMODE_LACONST; |
12f992ad | 1331 | /* route dma interrupt to pci bus */ |
65bf53de | 1332 | bits |= PLX_DMAMODE_INTRPCI; |
12f992ad | 1333 | /* enable demand mode */ |
65bf53de | 1334 | bits |= PLX_DMAMODE_DEMAND; |
12f992ad | 1335 | /* enable local burst mode */ |
65bf53de | 1336 | bits |= PLX_DMAMODE_BURSTEN; |
12f992ad | 1337 | /* 4020 uses 32 bit dma */ |
52762ad1 | 1338 | if (board->layout == LAYOUT_4020) |
686869b4 | 1339 | bits |= PLX_DMAMODE_WIDTH_32; |
12f992ad | 1340 | else /* localspace0 bus is 16 bits wide */ |
686869b4 | 1341 | bits |= PLX_DMAMODE_WIDTH_16; |
c644a11a | 1342 | writel(bits, plx_iobase + PLX_REG_DMAMODE1); |
52762ad1 | 1343 | if (ao_cmd_is_supported(board)) |
c644a11a | 1344 | writel(bits, plx_iobase + PLX_REG_DMAMODE0); |
88b12a9a | 1345 | |
12f992ad | 1346 | /* enable interrupts on plx 9080 */ |
681d335a | 1347 | devpriv->plx_intcsr_bits |= |
9dc53852 IA |
1348 | PLX_INTCSR_LSEABORTEN | PLX_INTCSR_LSEPARITYEN | PLX_INTCSR_PIEN | |
1349 | PLX_INTCSR_PLIEN | PLX_INTCSR_PABORTIEN | PLX_INTCSR_LIOEN | | |
1350 | PLX_INTCSR_DMA0IEN | PLX_INTCSR_DMA1IEN; | |
681d335a | 1351 | writel(devpriv->plx_intcsr_bits, |
c644a11a | 1352 | devpriv->plx9080_iobase + PLX_REG_INTCSR); |
88b12a9a FMH |
1353 | } |
1354 | ||
012e642c IA |
1355 | static void disable_ai_pacing(struct comedi_device *dev) |
1356 | { | |
1357 | struct pcidas64_private *devpriv = dev->private; | |
1358 | unsigned long flags; | |
1359 | ||
1360 | disable_ai_interrupts(dev); | |
1361 | ||
1362 | spin_lock_irqsave(&dev->spinlock, flags); | |
1363 | devpriv->adc_control1_bits &= ~ADC_SW_GATE_BIT; | |
1364 | writew(devpriv->adc_control1_bits, | |
1365 | devpriv->main_iobase + ADC_CONTROL1_REG); | |
1366 | spin_unlock_irqrestore(&dev->spinlock, flags); | |
1367 | ||
1368 | /* disable pacing, triggering, etc */ | |
1369 | writew(ADC_DMA_DISABLE_BIT | ADC_SOFT_GATE_BITS | ADC_GATE_LEVEL_BIT, | |
1370 | devpriv->main_iobase + ADC_CONTROL0_REG); | |
1371 | } | |
1372 | ||
dd379fa2 IA |
1373 | static int set_ai_fifo_segment_length(struct comedi_device *dev, |
1374 | unsigned int num_entries) | |
1375 | { | |
52762ad1 | 1376 | const struct pcidas64_board *board = dev->board_ptr; |
dd379fa2 IA |
1377 | struct pcidas64_private *devpriv = dev->private; |
1378 | static const int increment_size = 0x100; | |
52762ad1 | 1379 | const struct hw_fifo_info *const fifo = board->ai_fifo; |
dd379fa2 IA |
1380 | unsigned int num_increments; |
1381 | uint16_t bits; | |
1382 | ||
1383 | if (num_entries < increment_size) | |
1384 | num_entries = increment_size; | |
1385 | if (num_entries > fifo->max_segment_length) | |
1386 | num_entries = fifo->max_segment_length; | |
1387 | ||
12f992ad | 1388 | /* 1 == 256 entries, 2 == 512 entries, etc */ |
2ead7b32 | 1389 | num_increments = DIV_ROUND_CLOSEST(num_entries, increment_size); |
dd379fa2 IA |
1390 | |
1391 | bits = (~(num_increments - 1)) & fifo->fifo_size_reg_mask; | |
1392 | devpriv->fifo_size_bits &= ~fifo->fifo_size_reg_mask; | |
1393 | devpriv->fifo_size_bits |= bits; | |
1394 | writew(devpriv->fifo_size_bits, | |
1395 | devpriv->main_iobase + FIFO_SIZE_REG); | |
1396 | ||
1397 | devpriv->ai_fifo_segment_length = num_increments * increment_size; | |
1398 | ||
dd379fa2 IA |
1399 | return devpriv->ai_fifo_segment_length; |
1400 | } | |
1401 | ||
f51ff7e4 AD |
1402 | /* |
1403 | * adjusts the size of hardware fifo (which determines block size for dma xfers) | |
1404 | */ | |
dd379fa2 IA |
1405 | static int set_ai_fifo_size(struct comedi_device *dev, unsigned int num_samples) |
1406 | { | |
52762ad1 | 1407 | const struct pcidas64_board *board = dev->board_ptr; |
dd379fa2 IA |
1408 | unsigned int num_fifo_entries; |
1409 | int retval; | |
52762ad1 | 1410 | const struct hw_fifo_info *const fifo = board->ai_fifo; |
dd379fa2 IA |
1411 | |
1412 | num_fifo_entries = num_samples / fifo->sample_packing_ratio; | |
1413 | ||
1414 | retval = set_ai_fifo_segment_length(dev, | |
1415 | num_fifo_entries / | |
1416 | fifo->num_segments); | |
1417 | if (retval < 0) | |
1418 | return retval; | |
1419 | ||
1420 | num_samples = retval * fifo->num_segments * fifo->sample_packing_ratio; | |
1421 | ||
dd379fa2 IA |
1422 | return num_samples; |
1423 | } | |
1424 | ||
1425 | /* query length of fifo */ | |
1426 | static unsigned int ai_fifo_size(struct comedi_device *dev) | |
1427 | { | |
52762ad1 | 1428 | const struct pcidas64_board *board = dev->board_ptr; |
dd379fa2 IA |
1429 | struct pcidas64_private *devpriv = dev->private; |
1430 | ||
1431 | return devpriv->ai_fifo_segment_length * | |
52762ad1 HS |
1432 | board->ai_fifo->num_segments * |
1433 | board->ai_fifo->sample_packing_ratio; | |
dd379fa2 IA |
1434 | } |
1435 | ||
da91b269 | 1436 | static void init_stc_registers(struct comedi_device *dev) |
88b12a9a | 1437 | { |
52762ad1 | 1438 | const struct pcidas64_board *board = dev->board_ptr; |
681d335a | 1439 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
1440 | uint16_t bits; |
1441 | unsigned long flags; | |
1442 | ||
5f74ea14 | 1443 | spin_lock_irqsave(&dev->spinlock, flags); |
88b12a9a | 1444 | |
85c12b82 AD |
1445 | /* |
1446 | * bit should be set for 6025, | |
1447 | * although docs say boards with <= 16 chans should be cleared XXX | |
1448 | */ | |
88b12a9a | 1449 | if (1) |
681d335a HS |
1450 | devpriv->adc_control1_bits |= ADC_QUEUE_CONFIG_BIT; |
1451 | writew(devpriv->adc_control1_bits, | |
1452 | devpriv->main_iobase + ADC_CONTROL1_REG); | |
88b12a9a | 1453 | |
12f992ad | 1454 | /* 6402/16 manual says this register must be initialized to 0xff? */ |
681d335a | 1455 | writew(0xff, devpriv->main_iobase + ADC_SAMPLE_INTERVAL_UPPER_REG); |
88b12a9a FMH |
1456 | |
1457 | bits = SLOW_DAC_BIT | DMA_CH_SELECT_BIT; | |
52762ad1 | 1458 | if (board->layout == LAYOUT_4020) |
88b12a9a | 1459 | bits |= INTERNAL_CLOCK_4020_BITS; |
681d335a HS |
1460 | devpriv->hw_config_bits |= bits; |
1461 | writew(devpriv->hw_config_bits, | |
1462 | devpriv->main_iobase + HW_CONFIG_REG); | |
88b12a9a | 1463 | |
681d335a HS |
1464 | writew(0, devpriv->main_iobase + DAQ_SYNC_REG); |
1465 | writew(0, devpriv->main_iobase + CALIBRATION_REG); | |
88b12a9a | 1466 | |
5f74ea14 | 1467 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a | 1468 | |
12f992ad | 1469 | /* set fifos to maximum size */ |
681d335a | 1470 | devpriv->fifo_size_bits |= DAC_FIFO_BITS; |
52762ad1 | 1471 | set_ai_fifo_segment_length(dev, board->ai_fifo->max_segment_length); |
88b12a9a | 1472 | |
681d335a | 1473 | devpriv->dac_control1_bits = DAC_OUTPUT_ENABLE_BIT; |
46ca84c4 IA |
1474 | devpriv->intr_enable_bits = |
1475 | /* EN_DAC_INTR_SRC_BIT | DAC_INTR_QEMPTY_BITS | */ | |
1476 | EN_DAC_DONE_INTR_BIT | EN_DAC_UNDERRUN_BIT; | |
681d335a HS |
1477 | writew(devpriv->intr_enable_bits, |
1478 | devpriv->main_iobase + INTR_ENABLE_REG); | |
88b12a9a FMH |
1479 | |
1480 | disable_ai_pacing(dev); | |
1481 | }; | |
1482 | ||
f31d0008 | 1483 | static int alloc_and_init_dma_members(struct comedi_device *dev) |
88b12a9a | 1484 | { |
52762ad1 | 1485 | const struct pcidas64_board *board = dev->board_ptr; |
000e2635 | 1486 | struct pci_dev *pcidev = comedi_to_pci_dev(dev); |
681d335a | 1487 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
1488 | int i; |
1489 | ||
12f992ad | 1490 | /* allocate pci dma buffers */ |
52762ad1 | 1491 | for (i = 0; i < ai_dma_ring_count(board); i++) { |
681d335a | 1492 | devpriv->ai_buffer[i] = |
d2b0fc6e AKC |
1493 | dma_alloc_coherent(&pcidev->dev, DMA_BUFFER_SIZE, |
1494 | &devpriv->ai_buffer_bus_addr[i], | |
1495 | GFP_KERNEL); | |
854472c2 | 1496 | if (!devpriv->ai_buffer[i]) |
88b12a9a | 1497 | return -ENOMEM; |
88b12a9a FMH |
1498 | } |
1499 | for (i = 0; i < AO_DMA_RING_COUNT; i++) { | |
52762ad1 | 1500 | if (ao_cmd_is_supported(board)) { |
681d335a | 1501 | devpriv->ao_buffer[i] = |
d2b0fc6e AKC |
1502 | dma_alloc_coherent(&pcidev->dev, |
1503 | DMA_BUFFER_SIZE, | |
1504 | &devpriv-> | |
1505 | ao_buffer_bus_addr[i], | |
1506 | GFP_KERNEL); | |
854472c2 | 1507 | if (!devpriv->ao_buffer[i]) |
88b12a9a | 1508 | return -ENOMEM; |
88b12a9a FMH |
1509 | } |
1510 | } | |
12f992ad | 1511 | /* allocate dma descriptors */ |
681d335a | 1512 | devpriv->ai_dma_desc = |
d2b0fc6e AKC |
1513 | dma_alloc_coherent(&pcidev->dev, sizeof(struct plx_dma_desc) * |
1514 | ai_dma_ring_count(board), | |
1515 | &devpriv->ai_dma_desc_bus_addr, GFP_KERNEL); | |
854472c2 | 1516 | if (!devpriv->ai_dma_desc) |
88b12a9a | 1517 | return -ENOMEM; |
90cae794 | 1518 | |
52762ad1 | 1519 | if (ao_cmd_is_supported(board)) { |
681d335a | 1520 | devpriv->ao_dma_desc = |
d2b0fc6e AKC |
1521 | dma_alloc_coherent(&pcidev->dev, |
1522 | sizeof(struct plx_dma_desc) * | |
1523 | AO_DMA_RING_COUNT, | |
1524 | &devpriv->ao_dma_desc_bus_addr, | |
1525 | GFP_KERNEL); | |
854472c2 | 1526 | if (!devpriv->ao_dma_desc) |
88b12a9a | 1527 | return -ENOMEM; |
88b12a9a | 1528 | } |
12f992ad | 1529 | /* initialize dma descriptors */ |
52762ad1 | 1530 | for (i = 0; i < ai_dma_ring_count(board); i++) { |
681d335a | 1531 | devpriv->ai_dma_desc[i].pci_start_addr = |
46ca84c4 | 1532 | cpu_to_le32(devpriv->ai_buffer_bus_addr[i]); |
52762ad1 | 1533 | if (board->layout == LAYOUT_4020) |
681d335a | 1534 | devpriv->ai_dma_desc[i].local_start_addr = |
46ca84c4 IA |
1535 | cpu_to_le32(devpriv->local1_iobase + |
1536 | ADC_FIFO_REG); | |
88b12a9a | 1537 | else |
681d335a | 1538 | devpriv->ai_dma_desc[i].local_start_addr = |
46ca84c4 IA |
1539 | cpu_to_le32(devpriv->local0_iobase + |
1540 | ADC_FIFO_REG); | |
681d335a HS |
1541 | devpriv->ai_dma_desc[i].transfer_size = cpu_to_le32(0); |
1542 | devpriv->ai_dma_desc[i].next = | |
46ca84c4 | 1543 | cpu_to_le32((devpriv->ai_dma_desc_bus_addr + |
52762ad1 | 1544 | ((i + 1) % ai_dma_ring_count(board)) * |
46ca84c4 | 1545 | sizeof(devpriv->ai_dma_desc[0])) | |
dde90d89 IA |
1546 | PLX_DMADPR_DESCPCI | PLX_DMADPR_TCINTR | |
1547 | PLX_DMADPR_XFERL2P); | |
88b12a9a | 1548 | } |
52762ad1 | 1549 | if (ao_cmd_is_supported(board)) { |
88b12a9a | 1550 | for (i = 0; i < AO_DMA_RING_COUNT; i++) { |
681d335a | 1551 | devpriv->ao_dma_desc[i].pci_start_addr = |
46ca84c4 | 1552 | cpu_to_le32(devpriv->ao_buffer_bus_addr[i]); |
681d335a | 1553 | devpriv->ao_dma_desc[i].local_start_addr = |
46ca84c4 IA |
1554 | cpu_to_le32(devpriv->local0_iobase + |
1555 | DAC_FIFO_REG); | |
1556 | devpriv->ao_dma_desc[i].transfer_size = cpu_to_le32(0); | |
681d335a | 1557 | devpriv->ao_dma_desc[i].next = |
46ca84c4 IA |
1558 | cpu_to_le32((devpriv->ao_dma_desc_bus_addr + |
1559 | ((i + 1) % (AO_DMA_RING_COUNT)) * | |
1560 | sizeof(devpriv->ao_dma_desc[0])) | | |
dde90d89 IA |
1561 | PLX_DMADPR_DESCPCI | |
1562 | PLX_DMADPR_TCINTR); | |
88b12a9a FMH |
1563 | } |
1564 | } | |
1565 | return 0; | |
1566 | } | |
1567 | ||
f9804323 HS |
1568 | static void cb_pcidas64_free_dma(struct comedi_device *dev) |
1569 | { | |
52762ad1 | 1570 | const struct pcidas64_board *board = dev->board_ptr; |
f9804323 HS |
1571 | struct pci_dev *pcidev = comedi_to_pci_dev(dev); |
1572 | struct pcidas64_private *devpriv = dev->private; | |
1573 | int i; | |
1574 | ||
1575 | if (!devpriv) | |
1576 | return; | |
1577 | ||
1578 | /* free pci dma buffers */ | |
52762ad1 | 1579 | for (i = 0; i < ai_dma_ring_count(board); i++) { |
f9804323 | 1580 | if (devpriv->ai_buffer[i]) |
d2b0fc6e AKC |
1581 | dma_free_coherent(&pcidev->dev, |
1582 | DMA_BUFFER_SIZE, | |
1583 | devpriv->ai_buffer[i], | |
1584 | devpriv->ai_buffer_bus_addr[i]); | |
f9804323 HS |
1585 | } |
1586 | for (i = 0; i < AO_DMA_RING_COUNT; i++) { | |
1587 | if (devpriv->ao_buffer[i]) | |
d2b0fc6e AKC |
1588 | dma_free_coherent(&pcidev->dev, |
1589 | DMA_BUFFER_SIZE, | |
1590 | devpriv->ao_buffer[i], | |
1591 | devpriv->ao_buffer_bus_addr[i]); | |
f9804323 HS |
1592 | } |
1593 | /* free dma descriptors */ | |
1594 | if (devpriv->ai_dma_desc) | |
d2b0fc6e AKC |
1595 | dma_free_coherent(&pcidev->dev, |
1596 | sizeof(struct plx_dma_desc) * | |
1597 | ai_dma_ring_count(board), | |
1598 | devpriv->ai_dma_desc, | |
1599 | devpriv->ai_dma_desc_bus_addr); | |
f9804323 | 1600 | if (devpriv->ao_dma_desc) |
d2b0fc6e AKC |
1601 | dma_free_coherent(&pcidev->dev, |
1602 | sizeof(struct plx_dma_desc) * | |
1603 | AO_DMA_RING_COUNT, | |
1604 | devpriv->ao_dma_desc, | |
1605 | devpriv->ao_dma_desc_bus_addr); | |
f9804323 HS |
1606 | } |
1607 | ||
da91b269 | 1608 | static inline void warn_external_queue(struct comedi_device *dev) |
88b12a9a | 1609 | { |
e176d78c HS |
1610 | dev_err(dev->class_dev, |
1611 | "AO command and AI external channel queue cannot be used simultaneously\n"); | |
1612 | dev_err(dev->class_dev, | |
1613 | "Use internal AI channel queue (channels must be consecutive and use same range/aref)\n"); | |
88b12a9a FMH |
1614 | } |
1615 | ||
f51ff7e4 AD |
1616 | /* |
1617 | * their i2c requires a huge delay on setting clock or data high for some reason | |
1618 | */ | |
012e642c IA |
1619 | static const int i2c_high_udelay = 1000; |
1620 | static const int i2c_low_udelay = 10; | |
1621 | ||
1622 | /* set i2c data line high or low */ | |
1623 | static void i2c_set_sda(struct comedi_device *dev, int state) | |
1624 | { | |
1625 | struct pcidas64_private *devpriv = dev->private; | |
a3228bc8 | 1626 | static const int data_bit = PLX_CNTRL_EEWB; |
012e642c | 1627 | void __iomem *plx_control_addr = devpriv->plx9080_iobase + |
c644a11a | 1628 | PLX_REG_CNTRL; |
012e642c | 1629 | |
12f992ad | 1630 | if (state) { /* set data line high */ |
012e642c IA |
1631 | devpriv->plx_control_bits &= ~data_bit; |
1632 | writel(devpriv->plx_control_bits, plx_control_addr); | |
1633 | udelay(i2c_high_udelay); | |
12f992ad | 1634 | } else { /* set data line low */ |
012e642c IA |
1635 | devpriv->plx_control_bits |= data_bit; |
1636 | writel(devpriv->plx_control_bits, plx_control_addr); | |
1637 | udelay(i2c_low_udelay); | |
1638 | } | |
1639 | } | |
1640 | ||
1641 | /* set i2c clock line high or low */ | |
1642 | static void i2c_set_scl(struct comedi_device *dev, int state) | |
1643 | { | |
1644 | struct pcidas64_private *devpriv = dev->private; | |
a3228bc8 | 1645 | static const int clock_bit = PLX_CNTRL_USERO; |
012e642c | 1646 | void __iomem *plx_control_addr = devpriv->plx9080_iobase + |
c644a11a | 1647 | PLX_REG_CNTRL; |
012e642c | 1648 | |
12f992ad | 1649 | if (state) { /* set clock line high */ |
012e642c IA |
1650 | devpriv->plx_control_bits &= ~clock_bit; |
1651 | writel(devpriv->plx_control_bits, plx_control_addr); | |
1652 | udelay(i2c_high_udelay); | |
12f992ad | 1653 | } else { /* set clock line low */ |
012e642c IA |
1654 | devpriv->plx_control_bits |= clock_bit; |
1655 | writel(devpriv->plx_control_bits, plx_control_addr); | |
1656 | udelay(i2c_low_udelay); | |
1657 | } | |
1658 | } | |
1659 | ||
1660 | static void i2c_write_byte(struct comedi_device *dev, uint8_t byte) | |
1661 | { | |
1662 | uint8_t bit; | |
1663 | unsigned int num_bits = 8; | |
1664 | ||
012e642c IA |
1665 | for (bit = 1 << (num_bits - 1); bit; bit >>= 1) { |
1666 | i2c_set_scl(dev, 0); | |
1667 | if ((byte & bit)) | |
1668 | i2c_set_sda(dev, 1); | |
1669 | else | |
1670 | i2c_set_sda(dev, 0); | |
1671 | i2c_set_scl(dev, 1); | |
1672 | } | |
1673 | } | |
1674 | ||
1675 | /* we can't really read the lines, so fake it */ | |
1676 | static int i2c_read_ack(struct comedi_device *dev) | |
1677 | { | |
1678 | i2c_set_scl(dev, 0); | |
1679 | i2c_set_sda(dev, 1); | |
1680 | i2c_set_scl(dev, 1); | |
1681 | ||
12f992ad | 1682 | return 0; /* return fake acknowledge bit */ |
012e642c IA |
1683 | } |
1684 | ||
1685 | /* send start bit */ | |
1686 | static void i2c_start(struct comedi_device *dev) | |
1687 | { | |
1688 | i2c_set_scl(dev, 1); | |
1689 | i2c_set_sda(dev, 1); | |
1690 | i2c_set_sda(dev, 0); | |
1691 | } | |
1692 | ||
1693 | /* send stop bit */ | |
1694 | static void i2c_stop(struct comedi_device *dev) | |
1695 | { | |
1696 | i2c_set_scl(dev, 0); | |
1697 | i2c_set_sda(dev, 0); | |
1698 | i2c_set_scl(dev, 1); | |
1699 | i2c_set_sda(dev, 1); | |
1700 | } | |
1701 | ||
1702 | static void i2c_write(struct comedi_device *dev, unsigned int address, | |
1703 | const uint8_t *data, unsigned int length) | |
1704 | { | |
1705 | struct pcidas64_private *devpriv = dev->private; | |
1706 | unsigned int i; | |
1707 | uint8_t bitstream; | |
1708 | static const int read_bit = 0x1; | |
1709 | ||
85c12b82 AD |
1710 | /* |
1711 | * XXX need mutex to prevent simultaneous attempts to access | |
1712 | * eeprom and i2c bus | |
1713 | */ | |
012e642c | 1714 | |
12f992ad | 1715 | /* make sure we dont send anything to eeprom */ |
a3228bc8 | 1716 | devpriv->plx_control_bits &= ~PLX_CNTRL_EECS; |
012e642c IA |
1717 | |
1718 | i2c_stop(dev); | |
1719 | i2c_start(dev); | |
1720 | ||
12f992ad | 1721 | /* send address and write bit */ |
012e642c IA |
1722 | bitstream = (address << 1) & ~read_bit; |
1723 | i2c_write_byte(dev, bitstream); | |
1724 | ||
12f992ad | 1725 | /* get acknowledge */ |
012e642c | 1726 | if (i2c_read_ack(dev) != 0) { |
cd25503f | 1727 | dev_err(dev->class_dev, "failed: no acknowledge\n"); |
012e642c IA |
1728 | i2c_stop(dev); |
1729 | return; | |
1730 | } | |
12f992ad | 1731 | /* write data bytes */ |
012e642c IA |
1732 | for (i = 0; i < length; i++) { |
1733 | i2c_write_byte(dev, data[i]); | |
1734 | if (i2c_read_ack(dev) != 0) { | |
cd25503f | 1735 | dev_err(dev->class_dev, "failed: no acknowledge\n"); |
012e642c IA |
1736 | i2c_stop(dev); |
1737 | return; | |
1738 | } | |
1739 | } | |
1740 | i2c_stop(dev); | |
1741 | } | |
1742 | ||
96ed0850 HS |
1743 | static int cb_pcidas64_ai_eoc(struct comedi_device *dev, |
1744 | struct comedi_subdevice *s, | |
1745 | struct comedi_insn *insn, | |
1746 | unsigned long context) | |
1747 | { | |
52762ad1 | 1748 | const struct pcidas64_board *board = dev->board_ptr; |
96ed0850 HS |
1749 | struct pcidas64_private *devpriv = dev->private; |
1750 | unsigned int status; | |
1751 | ||
1752 | status = readw(devpriv->main_iobase + HW_STATUS_REG); | |
52762ad1 | 1753 | if (board->layout == LAYOUT_4020) { |
96ed0850 HS |
1754 | status = readw(devpriv->main_iobase + ADC_WRITE_PNTR_REG); |
1755 | if (status) | |
1756 | return 0; | |
1757 | } else { | |
1758 | if (pipe_full_bits(status)) | |
1759 | return 0; | |
1760 | } | |
1761 | return -EBUSY; | |
1762 | } | |
1763 | ||
da91b269 | 1764 | static int ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 1765 | struct comedi_insn *insn, unsigned int *data) |
88b12a9a | 1766 | { |
52762ad1 | 1767 | const struct pcidas64_board *board = dev->board_ptr; |
681d335a | 1768 | struct pcidas64_private *devpriv = dev->private; |
96ed0850 | 1769 | unsigned int bits = 0, n; |
88b12a9a FMH |
1770 | unsigned int channel, range, aref; |
1771 | unsigned long flags; | |
96ed0850 | 1772 | int ret; |
88b12a9a | 1773 | |
88b12a9a FMH |
1774 | channel = CR_CHAN(insn->chanspec); |
1775 | range = CR_RANGE(insn->chanspec); | |
1776 | aref = CR_AREF(insn->chanspec); | |
1777 | ||
12f992ad AJ |
1778 | /* disable card's analog input interrupt sources and pacing */ |
1779 | /* 4020 generates dac done interrupts even though they are disabled */ | |
88b12a9a FMH |
1780 | disable_ai_pacing(dev); |
1781 | ||
5f74ea14 | 1782 | spin_lock_irqsave(&dev->spinlock, flags); |
88b12a9a | 1783 | if (insn->chanspec & CR_ALT_FILTER) |
681d335a | 1784 | devpriv->adc_control1_bits |= ADC_DITHER_BIT; |
88b12a9a | 1785 | else |
681d335a HS |
1786 | devpriv->adc_control1_bits &= ~ADC_DITHER_BIT; |
1787 | writew(devpriv->adc_control1_bits, | |
1788 | devpriv->main_iobase + ADC_CONTROL1_REG); | |
5f74ea14 | 1789 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a | 1790 | |
52762ad1 | 1791 | if (board->layout != LAYOUT_4020) { |
12f992ad | 1792 | /* use internal queue */ |
681d335a HS |
1793 | devpriv->hw_config_bits &= ~EXT_QUEUE_BIT; |
1794 | writew(devpriv->hw_config_bits, | |
1795 | devpriv->main_iobase + HW_CONFIG_REG); | |
88b12a9a | 1796 | |
12f992ad | 1797 | /* ALT_SOURCE is internal calibration reference */ |
88b12a9a FMH |
1798 | if (insn->chanspec & CR_ALT_SOURCE) { |
1799 | unsigned int cal_en_bit; | |
1800 | ||
52762ad1 | 1801 | if (board->layout == LAYOUT_60XX) |
88b12a9a FMH |
1802 | cal_en_bit = CAL_EN_60XX_BIT; |
1803 | else | |
1804 | cal_en_bit = CAL_EN_64XX_BIT; | |
85c12b82 AD |
1805 | /* |
1806 | * select internal reference source to connect | |
1807 | * to channel 0 | |
1808 | */ | |
0a85b6f0 | 1809 | writew(cal_en_bit | |
681d335a HS |
1810 | adc_src_bits(devpriv->calibration_source), |
1811 | devpriv->main_iobase + CALIBRATION_REG); | |
88b12a9a | 1812 | } else { |
85c12b82 AD |
1813 | /* |
1814 | * make sure internal calibration source | |
1815 | * is turned off | |
1816 | */ | |
681d335a | 1817 | writew(0, devpriv->main_iobase + CALIBRATION_REG); |
88b12a9a | 1818 | } |
12f992ad | 1819 | /* load internal queue */ |
88b12a9a | 1820 | bits = 0; |
12f992ad | 1821 | /* set gain */ |
88b12a9a | 1822 | bits |= ai_range_bits_6xxx(dev, CR_RANGE(insn->chanspec)); |
12f992ad | 1823 | /* set single-ended / differential */ |
88b12a9a FMH |
1824 | bits |= se_diff_bit_6xxx(dev, aref == AREF_DIFF); |
1825 | if (aref == AREF_COMMON) | |
1826 | bits |= ADC_COMMON_BIT; | |
1827 | bits |= adc_chan_bits(channel); | |
12f992ad | 1828 | /* set stop channel */ |
88b12a9a | 1829 | writew(adc_chan_bits(channel), |
681d335a | 1830 | devpriv->main_iobase + ADC_QUEUE_HIGH_REG); |
12f992ad | 1831 | /* set start channel, and rest of settings */ |
681d335a | 1832 | writew(bits, devpriv->main_iobase + ADC_QUEUE_LOAD_REG); |
88b12a9a | 1833 | } else { |
681d335a | 1834 | uint8_t old_cal_range_bits = devpriv->i2c_cal_range_bits; |
88b12a9a | 1835 | |
681d335a | 1836 | devpriv->i2c_cal_range_bits &= ~ADC_SRC_4020_MASK; |
88b12a9a | 1837 | if (insn->chanspec & CR_ALT_SOURCE) { |
681d335a | 1838 | devpriv->i2c_cal_range_bits |= |
46ca84c4 | 1839 | adc_src_4020_bits(devpriv->calibration_source); |
9ef4dea6 | 1840 | } else { /* select BNC inputs */ |
681d335a | 1841 | devpriv->i2c_cal_range_bits |= adc_src_4020_bits(4); |
88b12a9a | 1842 | } |
12f992ad | 1843 | /* select range */ |
88b12a9a | 1844 | if (range == 0) |
681d335a | 1845 | devpriv->i2c_cal_range_bits |= attenuate_bit(channel); |
88b12a9a | 1846 | else |
46ca84c4 | 1847 | devpriv->i2c_cal_range_bits &= ~attenuate_bit(channel); |
85c12b82 AD |
1848 | /* |
1849 | * update calibration/range i2c register only if necessary, | |
1850 | * as it is very slow | |
1851 | */ | |
681d335a HS |
1852 | if (old_cal_range_bits != devpriv->i2c_cal_range_bits) { |
1853 | uint8_t i2c_data = devpriv->i2c_cal_range_bits; | |
43358ed0 | 1854 | |
88b12a9a | 1855 | i2c_write(dev, RANGE_CAL_I2C_ADDR, &i2c_data, |
0a85b6f0 | 1856 | sizeof(i2c_data)); |
88b12a9a FMH |
1857 | } |
1858 | ||
85c12b82 AD |
1859 | /* |
1860 | * 4020 manual asks that sample interval register to be set | |
46ca84c4 IA |
1861 | * before writing to convert register. |
1862 | * Using somewhat arbitrary setting of 4 master clock ticks | |
85c12b82 AD |
1863 | * = 0.1 usec |
1864 | */ | |
46ca84c4 IA |
1865 | writew(0, devpriv->main_iobase + ADC_SAMPLE_INTERVAL_UPPER_REG); |
1866 | writew(2, devpriv->main_iobase + ADC_SAMPLE_INTERVAL_LOWER_REG); | |
88b12a9a FMH |
1867 | } |
1868 | ||
1869 | for (n = 0; n < insn->n; n++) { | |
12f992ad | 1870 | /* clear adc buffer (inside loop for 4020 sake) */ |
681d335a | 1871 | writew(0, devpriv->main_iobase + ADC_BUFFER_CLEAR_REG); |
88b12a9a FMH |
1872 | |
1873 | /* trigger conversion, bits sent only matter for 4020 */ | |
1874 | writew(adc_convert_chan_4020_bits(CR_CHAN(insn->chanspec)), | |
681d335a | 1875 | devpriv->main_iobase + ADC_CONVERT_REG); |
88b12a9a | 1876 | |
12f992ad | 1877 | /* wait for data */ |
96ed0850 | 1878 | ret = comedi_timeout(dev, s, insn, cb_pcidas64_ai_eoc, 0); |
22ca19d9 | 1879 | if (ret) |
96ed0850 | 1880 | return ret; |
96ed0850 | 1881 | |
52762ad1 | 1882 | if (board->layout == LAYOUT_4020) |
9ebd1028 | 1883 | data[n] = readl(dev->mmio + ADC_FIFO_REG) & 0xffff; |
88b12a9a | 1884 | else |
46ca84c4 | 1885 | data[n] = readw(devpriv->main_iobase + PIPE1_READ_REG); |
88b12a9a FMH |
1886 | } |
1887 | ||
1888 | return n; | |
1889 | } | |
1890 | ||
0a85b6f0 MT |
1891 | static int ai_config_calibration_source(struct comedi_device *dev, |
1892 | unsigned int *data) | |
88b12a9a | 1893 | { |
52762ad1 | 1894 | const struct pcidas64_board *board = dev->board_ptr; |
681d335a | 1895 | struct pcidas64_private *devpriv = dev->private; |
790c5541 | 1896 | unsigned int source = data[1]; |
88b12a9a FMH |
1897 | int num_calibration_sources; |
1898 | ||
52762ad1 | 1899 | if (board->layout == LAYOUT_60XX) |
88b12a9a FMH |
1900 | num_calibration_sources = 16; |
1901 | else | |
1902 | num_calibration_sources = 8; | |
1903 | if (source >= num_calibration_sources) { | |
f41ad667 | 1904 | dev_dbg(dev->class_dev, "invalid calibration source: %i\n", |
6c6c227d | 1905 | source); |
88b12a9a FMH |
1906 | return -EINVAL; |
1907 | } | |
1908 | ||
681d335a | 1909 | devpriv->calibration_source = source; |
88b12a9a FMH |
1910 | |
1911 | return 2; | |
1912 | } | |
1913 | ||
da91b269 | 1914 | static int ai_config_block_size(struct comedi_device *dev, unsigned int *data) |
88b12a9a | 1915 | { |
52762ad1 | 1916 | const struct pcidas64_board *board = dev->board_ptr; |
88b12a9a | 1917 | int fifo_size; |
52762ad1 | 1918 | const struct hw_fifo_info *const fifo = board->ai_fifo; |
88b12a9a FMH |
1919 | unsigned int block_size, requested_block_size; |
1920 | int retval; | |
1921 | ||
1922 | requested_block_size = data[1]; | |
1923 | ||
1924 | if (requested_block_size) { | |
46ca84c4 IA |
1925 | fifo_size = requested_block_size * fifo->num_segments / |
1926 | bytes_in_sample; | |
88b12a9a FMH |
1927 | |
1928 | retval = set_ai_fifo_size(dev, fifo_size); | |
1929 | if (retval < 0) | |
1930 | return retval; | |
88b12a9a FMH |
1931 | } |
1932 | ||
1933 | block_size = ai_fifo_size(dev) / fifo->num_segments * bytes_in_sample; | |
1934 | ||
1935 | data[1] = block_size; | |
1936 | ||
1937 | return 2; | |
1938 | } | |
1939 | ||
0a85b6f0 MT |
1940 | static int ai_config_master_clock_4020(struct comedi_device *dev, |
1941 | unsigned int *data) | |
88b12a9a | 1942 | { |
681d335a | 1943 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
1944 | unsigned int divisor = data[4]; |
1945 | int retval = 0; | |
1946 | ||
1947 | if (divisor < 2) { | |
1948 | divisor = 2; | |
1949 | retval = -EAGAIN; | |
1950 | } | |
1951 | ||
1952 | switch (data[1]) { | |
1953 | case COMEDI_EV_SCAN_BEGIN: | |
681d335a HS |
1954 | devpriv->ext_clock.divisor = divisor; |
1955 | devpriv->ext_clock.chanspec = data[2]; | |
88b12a9a FMH |
1956 | break; |
1957 | default: | |
1958 | return -EINVAL; | |
88b12a9a FMH |
1959 | } |
1960 | ||
1961 | data[4] = divisor; | |
1962 | ||
1963 | return retval ? retval : 5; | |
1964 | } | |
1965 | ||
9ef4dea6 | 1966 | /* XXX could add support for 60xx series */ |
da91b269 | 1967 | static int ai_config_master_clock(struct comedi_device *dev, unsigned int *data) |
88b12a9a | 1968 | { |
52762ad1 | 1969 | const struct pcidas64_board *board = dev->board_ptr; |
88b12a9a | 1970 | |
52762ad1 | 1971 | switch (board->layout) { |
88b12a9a FMH |
1972 | case LAYOUT_4020: |
1973 | return ai_config_master_clock_4020(dev, data); | |
88b12a9a FMH |
1974 | default: |
1975 | return -EINVAL; | |
88b12a9a FMH |
1976 | } |
1977 | ||
1978 | return -EINVAL; | |
1979 | } | |
1980 | ||
da91b269 | 1981 | static int ai_config_insn(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 1982 | struct comedi_insn *insn, unsigned int *data) |
88b12a9a FMH |
1983 | { |
1984 | int id = data[0]; | |
1985 | ||
1986 | switch (id) { | |
1987 | case INSN_CONFIG_ALT_SOURCE: | |
1988 | return ai_config_calibration_source(dev, data); | |
88b12a9a FMH |
1989 | case INSN_CONFIG_BLOCK_SIZE: |
1990 | return ai_config_block_size(dev, data); | |
88b12a9a FMH |
1991 | case INSN_CONFIG_TIMER_1: |
1992 | return ai_config_master_clock(dev, data); | |
88b12a9a FMH |
1993 | default: |
1994 | return -EINVAL; | |
88b12a9a FMH |
1995 | } |
1996 | return -EINVAL; | |
1997 | } | |
1998 | ||
85c12b82 AD |
1999 | /* |
2000 | * Gets nearest achievable timing given master clock speed, does not | |
012e642c | 2001 | * take into account possible minimum/maximum divisor values. Used |
85c12b82 AD |
2002 | * by other timing checking functions. |
2003 | */ | |
012e642c IA |
2004 | static unsigned int get_divisor(unsigned int ns, unsigned int flags) |
2005 | { | |
2006 | unsigned int divisor; | |
2007 | ||
f772bd57 IA |
2008 | switch (flags & CMDF_ROUND_MASK) { |
2009 | case CMDF_ROUND_UP: | |
012e642c IA |
2010 | divisor = (ns + TIMER_BASE - 1) / TIMER_BASE; |
2011 | break; | |
f772bd57 | 2012 | case CMDF_ROUND_DOWN: |
012e642c IA |
2013 | divisor = ns / TIMER_BASE; |
2014 | break; | |
f772bd57 | 2015 | case CMDF_ROUND_NEAREST: |
012e642c | 2016 | default: |
2ead7b32 | 2017 | divisor = DIV_ROUND_CLOSEST(ns, TIMER_BASE); |
012e642c IA |
2018 | break; |
2019 | } | |
2020 | return divisor; | |
2021 | } | |
2022 | ||
85c12b82 AD |
2023 | /* |
2024 | * utility function that rounds desired timing to an achievable time, and | |
012e642c | 2025 | * sets cmd members appropriately. |
f51ff7e4 AD |
2026 | * adc paces conversions from master clock by dividing by (x + 3) where x is |
2027 | * 24 bit number | |
012e642c IA |
2028 | */ |
2029 | static void check_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd) | |
2030 | { | |
52762ad1 | 2031 | const struct pcidas64_board *board = dev->board_ptr; |
1f5fc964 HS |
2032 | unsigned long long convert_divisor = 0; |
2033 | unsigned int scan_divisor; | |
012e642c IA |
2034 | static const int min_convert_divisor = 3; |
2035 | static const int max_convert_divisor = | |
2036 | max_counter_value + min_convert_divisor; | |
2037 | static const int min_scan_divisor_4020 = 2; | |
2038 | unsigned long long max_scan_divisor, min_scan_divisor; | |
2039 | ||
2040 | if (cmd->convert_src == TRIG_TIMER) { | |
52762ad1 | 2041 | if (board->layout == LAYOUT_4020) { |
012e642c IA |
2042 | cmd->convert_arg = 0; |
2043 | } else { | |
2044 | convert_divisor = get_divisor(cmd->convert_arg, | |
2045 | cmd->flags); | |
2046 | if (convert_divisor > max_convert_divisor) | |
2047 | convert_divisor = max_convert_divisor; | |
2048 | if (convert_divisor < min_convert_divisor) | |
2049 | convert_divisor = min_convert_divisor; | |
2050 | cmd->convert_arg = convert_divisor * TIMER_BASE; | |
2051 | } | |
2052 | } else if (cmd->convert_src == TRIG_NOW) { | |
2053 | cmd->convert_arg = 0; | |
2054 | } | |
2055 | ||
2056 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
2057 | scan_divisor = get_divisor(cmd->scan_begin_arg, cmd->flags); | |
2058 | if (cmd->convert_src == TRIG_TIMER) { | |
012e642c IA |
2059 | min_scan_divisor = convert_divisor * cmd->chanlist_len; |
2060 | max_scan_divisor = | |
2061 | (convert_divisor * cmd->chanlist_len - 1) + | |
2062 | max_counter_value; | |
2063 | } else { | |
2064 | min_scan_divisor = min_scan_divisor_4020; | |
2065 | max_scan_divisor = max_counter_value + min_scan_divisor; | |
2066 | } | |
2067 | if (scan_divisor > max_scan_divisor) | |
2068 | scan_divisor = max_scan_divisor; | |
2069 | if (scan_divisor < min_scan_divisor) | |
2070 | scan_divisor = min_scan_divisor; | |
2071 | cmd->scan_begin_arg = scan_divisor * TIMER_BASE; | |
2072 | } | |
012e642c IA |
2073 | } |
2074 | ||
e300e4fb HS |
2075 | static int cb_pcidas64_ai_check_chanlist(struct comedi_device *dev, |
2076 | struct comedi_subdevice *s, | |
2077 | struct comedi_cmd *cmd) | |
2078 | { | |
3bc86feb | 2079 | const struct pcidas64_board *board = dev->board_ptr; |
e300e4fb HS |
2080 | unsigned int aref0 = CR_AREF(cmd->chanlist[0]); |
2081 | int i; | |
2082 | ||
2083 | for (i = 1; i < cmd->chanlist_len; i++) { | |
2084 | unsigned int aref = CR_AREF(cmd->chanlist[i]); | |
2085 | ||
2086 | if (aref != aref0) { | |
2087 | dev_dbg(dev->class_dev, | |
2088 | "all elements in chanlist must use the same analog reference\n"); | |
2089 | return -EINVAL; | |
2090 | } | |
2091 | } | |
2092 | ||
2093 | if (board->layout == LAYOUT_4020) { | |
2094 | unsigned int chan0 = CR_CHAN(cmd->chanlist[0]); | |
2095 | ||
2096 | for (i = 1; i < cmd->chanlist_len; i++) { | |
2097 | unsigned int chan = CR_CHAN(cmd->chanlist[i]); | |
2098 | ||
2099 | if (chan != (chan0 + i)) { | |
2100 | dev_dbg(dev->class_dev, | |
2101 | "chanlist must use consecutive channels\n"); | |
2102 | return -EINVAL; | |
2103 | } | |
2104 | } | |
2105 | if (cmd->chanlist_len == 3) { | |
2106 | dev_dbg(dev->class_dev, | |
2107 | "chanlist cannot be 3 channels long, use 1, 2, or 4 channels\n"); | |
2108 | return -EINVAL; | |
2109 | } | |
2110 | } | |
2111 | ||
2112 | return 0; | |
2113 | } | |
2114 | ||
da91b269 | 2115 | static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 2116 | struct comedi_cmd *cmd) |
88b12a9a | 2117 | { |
52762ad1 | 2118 | const struct pcidas64_board *board = dev->board_ptr; |
88b12a9a | 2119 | int err = 0; |
88b12a9a | 2120 | unsigned int tmp_arg, tmp_arg2; |
88b12a9a FMH |
2121 | unsigned int triggers; |
2122 | ||
27020ffe | 2123 | /* Step 1 : check if triggers are trivially valid */ |
88b12a9a | 2124 | |
571cea09 | 2125 | err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT); |
88b12a9a | 2126 | |
88b12a9a | 2127 | triggers = TRIG_TIMER; |
52762ad1 | 2128 | if (board->layout == LAYOUT_4020) |
88b12a9a FMH |
2129 | triggers |= TRIG_OTHER; |
2130 | else | |
2131 | triggers |= TRIG_FOLLOW; | |
571cea09 | 2132 | err |= comedi_check_trigger_src(&cmd->scan_begin_src, triggers); |
88b12a9a | 2133 | |
88b12a9a | 2134 | triggers = TRIG_TIMER; |
52762ad1 | 2135 | if (board->layout == LAYOUT_4020) |
88b12a9a FMH |
2136 | triggers |= TRIG_NOW; |
2137 | else | |
2138 | triggers |= TRIG_EXT; | |
571cea09 IA |
2139 | err |= comedi_check_trigger_src(&cmd->convert_src, triggers); |
2140 | err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); | |
2141 | err |= comedi_check_trigger_src(&cmd->stop_src, | |
2142 | TRIG_COUNT | TRIG_EXT | TRIG_NONE); | |
88b12a9a FMH |
2143 | |
2144 | if (err) | |
2145 | return 1; | |
2146 | ||
27020ffe | 2147 | /* Step 2a : make sure trigger sources are unique */ |
88b12a9a | 2148 | |
571cea09 IA |
2149 | err |= comedi_check_trigger_is_unique(cmd->start_src); |
2150 | err |= comedi_check_trigger_is_unique(cmd->scan_begin_src); | |
2151 | err |= comedi_check_trigger_is_unique(cmd->convert_src); | |
2152 | err |= comedi_check_trigger_is_unique(cmd->stop_src); | |
27020ffe HS |
2153 | |
2154 | /* Step 2b : and mutually compatible */ | |
88b12a9a | 2155 | |
88b12a9a | 2156 | if (cmd->convert_src == TRIG_EXT && cmd->scan_begin_src == TRIG_TIMER) |
27020ffe | 2157 | err |= -EINVAL; |
88b12a9a FMH |
2158 | |
2159 | if (err) | |
2160 | return 2; | |
2161 | ||
dba2939c | 2162 | /* Step 3: check if arguments are trivially valid */ |
88b12a9a | 2163 | |
020cb120 HS |
2164 | switch (cmd->start_src) { |
2165 | case TRIG_NOW: | |
571cea09 | 2166 | err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0); |
020cb120 HS |
2167 | break; |
2168 | case TRIG_EXT: | |
2169 | /* | |
2170 | * start_arg is the CR_CHAN | CR_INVERT of the | |
2171 | * external trigger. | |
2172 | */ | |
2173 | break; | |
2174 | } | |
2175 | ||
88b12a9a | 2176 | if (cmd->convert_src == TRIG_TIMER) { |
52762ad1 | 2177 | if (board->layout == LAYOUT_4020) { |
571cea09 IA |
2178 | err |= comedi_check_trigger_arg_is(&cmd->convert_arg, |
2179 | 0); | |
88b12a9a | 2180 | } else { |
571cea09 | 2181 | err |= comedi_check_trigger_arg_min(&cmd->convert_arg, |
52762ad1 | 2182 | board->ai_speed); |
571cea09 IA |
2183 | /* |
2184 | * if scans are timed faster than conversion rate | |
2185 | * allows | |
2186 | */ | |
2187 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
2188 | err |= comedi_check_trigger_arg_min( | |
dba2939c | 2189 | &cmd->scan_begin_arg, |
46ca84c4 | 2190 | cmd->convert_arg * |
dba2939c | 2191 | cmd->chanlist_len); |
571cea09 | 2192 | } |
88b12a9a FMH |
2193 | } |
2194 | } | |
2195 | ||
571cea09 IA |
2196 | err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1); |
2197 | err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg, | |
2198 | cmd->chanlist_len); | |
88b12a9a FMH |
2199 | |
2200 | switch (cmd->stop_src) { | |
2201 | case TRIG_EXT: | |
2202 | break; | |
2203 | case TRIG_COUNT: | |
571cea09 | 2204 | err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1); |
88b12a9a FMH |
2205 | break; |
2206 | case TRIG_NONE: | |
571cea09 | 2207 | err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0); |
88b12a9a FMH |
2208 | break; |
2209 | default: | |
2210 | break; | |
2211 | } | |
2212 | ||
2213 | if (err) | |
2214 | return 3; | |
2215 | ||
2216 | /* step 4: fix up any arguments */ | |
2217 | ||
2218 | if (cmd->convert_src == TRIG_TIMER) { | |
2219 | tmp_arg = cmd->convert_arg; | |
2220 | tmp_arg2 = cmd->scan_begin_arg; | |
2221 | check_adc_timing(dev, cmd); | |
2222 | if (tmp_arg != cmd->convert_arg) | |
2223 | err++; | |
2224 | if (tmp_arg2 != cmd->scan_begin_arg) | |
2225 | err++; | |
2226 | } | |
2227 | ||
2228 | if (err) | |
2229 | return 4; | |
2230 | ||
e300e4fb HS |
2231 | /* Step 5: check channel list if it exists */ |
2232 | if (cmd->chanlist && cmd->chanlist_len > 0) | |
2233 | err |= cb_pcidas64_ai_check_chanlist(dev, s, cmd); | |
88b12a9a FMH |
2234 | |
2235 | if (err) | |
2236 | return 5; | |
2237 | ||
2238 | return 0; | |
2239 | } | |
2240 | ||
da91b269 | 2241 | static int use_hw_sample_counter(struct comedi_cmd *cmd) |
88b12a9a | 2242 | { |
9ef4dea6 | 2243 | /* disable for now until I work out a race */ |
88b12a9a FMH |
2244 | return 0; |
2245 | ||
2246 | if (cmd->stop_src == TRIG_COUNT && cmd->stop_arg <= max_counter_value) | |
2247 | return 1; | |
4ffeead3 HS |
2248 | |
2249 | return 0; | |
88b12a9a FMH |
2250 | } |
2251 | ||
0a85b6f0 MT |
2252 | static void setup_sample_counters(struct comedi_device *dev, |
2253 | struct comedi_cmd *cmd) | |
88b12a9a | 2254 | { |
681d335a HS |
2255 | struct pcidas64_private *devpriv = dev->private; |
2256 | ||
12f992ad | 2257 | /* load hardware conversion counter */ |
88b12a9a FMH |
2258 | if (use_hw_sample_counter(cmd)) { |
2259 | writew(cmd->stop_arg & 0xffff, | |
681d335a | 2260 | devpriv->main_iobase + ADC_COUNT_LOWER_REG); |
88b12a9a | 2261 | writew((cmd->stop_arg >> 16) & 0xff, |
681d335a | 2262 | devpriv->main_iobase + ADC_COUNT_UPPER_REG); |
88b12a9a | 2263 | } else { |
681d335a | 2264 | writew(1, devpriv->main_iobase + ADC_COUNT_LOWER_REG); |
88b12a9a FMH |
2265 | } |
2266 | } | |
2267 | ||
da91b269 | 2268 | static inline unsigned int dma_transfer_size(struct comedi_device *dev) |
88b12a9a | 2269 | { |
52762ad1 | 2270 | const struct pcidas64_board *board = dev->board_ptr; |
681d335a | 2271 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2272 | unsigned int num_samples; |
2273 | ||
46ca84c4 | 2274 | num_samples = devpriv->ai_fifo_segment_length * |
52762ad1 | 2275 | board->ai_fifo->sample_packing_ratio; |
88b12a9a FMH |
2276 | if (num_samples > DMA_BUFFER_SIZE / sizeof(uint16_t)) |
2277 | num_samples = DMA_BUFFER_SIZE / sizeof(uint16_t); | |
2278 | ||
2279 | return num_samples; | |
2280 | } | |
2281 | ||
da91b269 | 2282 | static uint32_t ai_convert_counter_6xxx(const struct comedi_device *dev, |
0a85b6f0 | 2283 | const struct comedi_cmd *cmd) |
88b12a9a | 2284 | { |
12f992ad | 2285 | /* supposed to load counter with desired divisor minus 3 */ |
88b12a9a FMH |
2286 | return cmd->convert_arg / TIMER_BASE - 3; |
2287 | } | |
2288 | ||
0a85b6f0 MT |
2289 | static uint32_t ai_scan_counter_6xxx(struct comedi_device *dev, |
2290 | struct comedi_cmd *cmd) | |
88b12a9a FMH |
2291 | { |
2292 | uint32_t count; | |
46ca84c4 | 2293 | |
12f992ad | 2294 | /* figure out how long we need to delay at end of scan */ |
88b12a9a FMH |
2295 | switch (cmd->scan_begin_src) { |
2296 | case TRIG_TIMER: | |
2297 | count = (cmd->scan_begin_arg - | |
46ca84c4 IA |
2298 | (cmd->convert_arg * (cmd->chanlist_len - 1))) / |
2299 | TIMER_BASE; | |
88b12a9a FMH |
2300 | break; |
2301 | case TRIG_FOLLOW: | |
2302 | count = cmd->convert_arg / TIMER_BASE; | |
2303 | break; | |
2304 | default: | |
2305 | return 0; | |
88b12a9a FMH |
2306 | } |
2307 | return count - 3; | |
2308 | } | |
2309 | ||
0a85b6f0 MT |
2310 | static uint32_t ai_convert_counter_4020(struct comedi_device *dev, |
2311 | struct comedi_cmd *cmd) | |
88b12a9a | 2312 | { |
681d335a | 2313 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2314 | unsigned int divisor; |
2315 | ||
2316 | switch (cmd->scan_begin_src) { | |
2317 | case TRIG_TIMER: | |
2318 | divisor = cmd->scan_begin_arg / TIMER_BASE; | |
2319 | break; | |
2320 | case TRIG_OTHER: | |
681d335a | 2321 | divisor = devpriv->ext_clock.divisor; |
88b12a9a | 2322 | break; |
12f992ad | 2323 | default: /* should never happen */ |
e176d78c | 2324 | dev_err(dev->class_dev, "bug! failed to set ai pacing!\n"); |
88b12a9a FMH |
2325 | divisor = 1000; |
2326 | break; | |
2327 | } | |
2328 | ||
12f992ad | 2329 | /* supposed to load counter with desired divisor minus 2 for 4020 */ |
88b12a9a FMH |
2330 | return divisor - 2; |
2331 | } | |
2332 | ||
da91b269 | 2333 | static void select_master_clock_4020(struct comedi_device *dev, |
0a85b6f0 | 2334 | const struct comedi_cmd *cmd) |
88b12a9a | 2335 | { |
681d335a HS |
2336 | struct pcidas64_private *devpriv = dev->private; |
2337 | ||
12f992ad | 2338 | /* select internal/external master clock */ |
681d335a | 2339 | devpriv->hw_config_bits &= ~MASTER_CLOCK_4020_MASK; |
88b12a9a | 2340 | if (cmd->scan_begin_src == TRIG_OTHER) { |
681d335a | 2341 | int chanspec = devpriv->ext_clock.chanspec; |
88b12a9a FMH |
2342 | |
2343 | if (CR_CHAN(chanspec)) | |
681d335a | 2344 | devpriv->hw_config_bits |= BNC_CLOCK_4020_BITS; |
88b12a9a | 2345 | else |
681d335a | 2346 | devpriv->hw_config_bits |= EXT_CLOCK_4020_BITS; |
88b12a9a | 2347 | } else { |
681d335a | 2348 | devpriv->hw_config_bits |= INTERNAL_CLOCK_4020_BITS; |
88b12a9a | 2349 | } |
681d335a HS |
2350 | writew(devpriv->hw_config_bits, |
2351 | devpriv->main_iobase + HW_CONFIG_REG); | |
88b12a9a FMH |
2352 | } |
2353 | ||
0a85b6f0 MT |
2354 | static void select_master_clock(struct comedi_device *dev, |
2355 | const struct comedi_cmd *cmd) | |
88b12a9a | 2356 | { |
52762ad1 | 2357 | const struct pcidas64_board *board = dev->board_ptr; |
b07244ce | 2358 | |
52762ad1 | 2359 | switch (board->layout) { |
88b12a9a FMH |
2360 | case LAYOUT_4020: |
2361 | select_master_clock_4020(dev, cmd); | |
2362 | break; | |
2363 | default: | |
2364 | break; | |
2365 | } | |
2366 | } | |
2367 | ||
0a85b6f0 MT |
2368 | static inline void dma_start_sync(struct comedi_device *dev, |
2369 | unsigned int channel) | |
88b12a9a | 2370 | { |
681d335a | 2371 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2372 | unsigned long flags; |
2373 | ||
12f992ad | 2374 | /* spinlock for plx dma control/status reg */ |
5f74ea14 | 2375 | spin_lock_irqsave(&dev->spinlock, flags); |
3dcf1b55 | 2376 | writeb(PLX_DMACSR_ENABLE | PLX_DMACSR_START | PLX_DMACSR_CLEARINTR, |
c644a11a | 2377 | devpriv->plx9080_iobase + PLX_REG_DMACSR(channel)); |
5f74ea14 | 2378 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a FMH |
2379 | } |
2380 | ||
da91b269 | 2381 | static void set_ai_pacing(struct comedi_device *dev, struct comedi_cmd *cmd) |
88b12a9a | 2382 | { |
52762ad1 | 2383 | const struct pcidas64_board *board = dev->board_ptr; |
681d335a | 2384 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2385 | uint32_t convert_counter = 0, scan_counter = 0; |
2386 | ||
2387 | check_adc_timing(dev, cmd); | |
2388 | ||
2389 | select_master_clock(dev, cmd); | |
2390 | ||
52762ad1 | 2391 | if (board->layout == LAYOUT_4020) { |
88b12a9a FMH |
2392 | convert_counter = ai_convert_counter_4020(dev, cmd); |
2393 | } else { | |
2394 | convert_counter = ai_convert_counter_6xxx(dev, cmd); | |
2395 | scan_counter = ai_scan_counter_6xxx(dev, cmd); | |
2396 | } | |
2397 | ||
12f992ad | 2398 | /* load lower 16 bits of convert interval */ |
88b12a9a | 2399 | writew(convert_counter & 0xffff, |
681d335a | 2400 | devpriv->main_iobase + ADC_SAMPLE_INTERVAL_LOWER_REG); |
12f992ad | 2401 | /* load upper 8 bits of convert interval */ |
88b12a9a | 2402 | writew((convert_counter >> 16) & 0xff, |
681d335a | 2403 | devpriv->main_iobase + ADC_SAMPLE_INTERVAL_UPPER_REG); |
12f992ad | 2404 | /* load lower 16 bits of scan delay */ |
88b12a9a | 2405 | writew(scan_counter & 0xffff, |
681d335a | 2406 | devpriv->main_iobase + ADC_DELAY_INTERVAL_LOWER_REG); |
12f992ad | 2407 | /* load upper 8 bits of scan delay */ |
88b12a9a | 2408 | writew((scan_counter >> 16) & 0xff, |
681d335a | 2409 | devpriv->main_iobase + ADC_DELAY_INTERVAL_UPPER_REG); |
88b12a9a FMH |
2410 | } |
2411 | ||
da91b269 | 2412 | static int use_internal_queue_6xxx(const struct comedi_cmd *cmd) |
88b12a9a FMH |
2413 | { |
2414 | int i; | |
46ca84c4 | 2415 | |
88b12a9a FMH |
2416 | for (i = 0; i + 1 < cmd->chanlist_len; i++) { |
2417 | if (CR_CHAN(cmd->chanlist[i + 1]) != | |
0a85b6f0 | 2418 | CR_CHAN(cmd->chanlist[i]) + 1) |
88b12a9a FMH |
2419 | return 0; |
2420 | if (CR_RANGE(cmd->chanlist[i + 1]) != | |
0a85b6f0 | 2421 | CR_RANGE(cmd->chanlist[i])) |
88b12a9a FMH |
2422 | return 0; |
2423 | if (CR_AREF(cmd->chanlist[i + 1]) != CR_AREF(cmd->chanlist[i])) | |
2424 | return 0; | |
2425 | } | |
2426 | return 1; | |
2427 | } | |
2428 | ||
0a85b6f0 MT |
2429 | static int setup_channel_queue(struct comedi_device *dev, |
2430 | const struct comedi_cmd *cmd) | |
88b12a9a | 2431 | { |
52762ad1 | 2432 | const struct pcidas64_board *board = dev->board_ptr; |
681d335a | 2433 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2434 | unsigned short bits; |
2435 | int i; | |
2436 | ||
52762ad1 | 2437 | if (board->layout != LAYOUT_4020) { |
88b12a9a | 2438 | if (use_internal_queue_6xxx(cmd)) { |
681d335a HS |
2439 | devpriv->hw_config_bits &= ~EXT_QUEUE_BIT; |
2440 | writew(devpriv->hw_config_bits, | |
2441 | devpriv->main_iobase + HW_CONFIG_REG); | |
88b12a9a | 2442 | bits = 0; |
12f992ad | 2443 | /* set channel */ |
88b12a9a | 2444 | bits |= adc_chan_bits(CR_CHAN(cmd->chanlist[0])); |
12f992ad | 2445 | /* set gain */ |
88b12a9a | 2446 | bits |= ai_range_bits_6xxx(dev, |
0a85b6f0 | 2447 | CR_RANGE(cmd->chanlist[0])); |
12f992ad | 2448 | /* set single-ended / differential */ |
88b12a9a | 2449 | bits |= se_diff_bit_6xxx(dev, |
0a85b6f0 MT |
2450 | CR_AREF(cmd->chanlist[0]) == |
2451 | AREF_DIFF); | |
88b12a9a FMH |
2452 | if (CR_AREF(cmd->chanlist[0]) == AREF_COMMON) |
2453 | bits |= ADC_COMMON_BIT; | |
12f992ad | 2454 | /* set stop channel */ |
0a85b6f0 MT |
2455 | writew(adc_chan_bits |
2456 | (CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1])), | |
681d335a | 2457 | devpriv->main_iobase + ADC_QUEUE_HIGH_REG); |
12f992ad | 2458 | /* set start channel, and rest of settings */ |
88b12a9a | 2459 | writew(bits, |
681d335a | 2460 | devpriv->main_iobase + ADC_QUEUE_LOAD_REG); |
88b12a9a | 2461 | } else { |
12f992ad | 2462 | /* use external queue */ |
88b12a9a FMH |
2463 | if (dev->write_subdev && dev->write_subdev->busy) { |
2464 | warn_external_queue(dev); | |
2465 | return -EBUSY; | |
2466 | } | |
681d335a HS |
2467 | devpriv->hw_config_bits |= EXT_QUEUE_BIT; |
2468 | writew(devpriv->hw_config_bits, | |
2469 | devpriv->main_iobase + HW_CONFIG_REG); | |
12f992ad | 2470 | /* clear DAC buffer to prevent weird interactions */ |
88b12a9a | 2471 | writew(0, |
681d335a | 2472 | devpriv->main_iobase + DAC_BUFFER_CLEAR_REG); |
12f992ad | 2473 | /* clear queue pointer */ |
681d335a | 2474 | writew(0, devpriv->main_iobase + ADC_QUEUE_CLEAR_REG); |
12f992ad | 2475 | /* load external queue */ |
88b12a9a FMH |
2476 | for (i = 0; i < cmd->chanlist_len; i++) { |
2477 | bits = 0; | |
12f992ad | 2478 | /* set channel */ |
46ca84c4 IA |
2479 | bits |= adc_chan_bits(CR_CHAN(cmd-> |
2480 | chanlist[i])); | |
12f992ad | 2481 | /* set gain */ |
88b12a9a | 2482 | bits |= ai_range_bits_6xxx(dev, |
0a85b6f0 MT |
2483 | CR_RANGE(cmd-> |
2484 | chanlist | |
2485 | [i])); | |
12f992ad | 2486 | /* set single-ended / differential */ |
88b12a9a | 2487 | bits |= se_diff_bit_6xxx(dev, |
0a85b6f0 MT |
2488 | CR_AREF(cmd-> |
2489 | chanlist[i]) == | |
2490 | AREF_DIFF); | |
88b12a9a FMH |
2491 | if (CR_AREF(cmd->chanlist[i]) == AREF_COMMON) |
2492 | bits |= ADC_COMMON_BIT; | |
12f992ad | 2493 | /* mark end of queue */ |
88b12a9a FMH |
2494 | if (i == cmd->chanlist_len - 1) |
2495 | bits |= QUEUE_EOSCAN_BIT | | |
46ca84c4 | 2496 | QUEUE_EOSEQ_BIT; |
88b12a9a | 2497 | writew(bits, |
681d335a | 2498 | devpriv->main_iobase + |
0a85b6f0 | 2499 | ADC_QUEUE_FIFO_REG); |
88b12a9a | 2500 | } |
85c12b82 AD |
2501 | /* |
2502 | * doing a queue clear is not specified in board docs, | |
2503 | * but required for reliable operation | |
2504 | */ | |
681d335a | 2505 | writew(0, devpriv->main_iobase + ADC_QUEUE_CLEAR_REG); |
12f992ad | 2506 | /* prime queue holding register */ |
681d335a | 2507 | writew(0, devpriv->main_iobase + ADC_QUEUE_LOAD_REG); |
88b12a9a FMH |
2508 | } |
2509 | } else { | |
46ca84c4 | 2510 | unsigned short old_cal_range_bits = devpriv->i2c_cal_range_bits; |
88b12a9a | 2511 | |
681d335a | 2512 | devpriv->i2c_cal_range_bits &= ~ADC_SRC_4020_MASK; |
9ef4dea6 | 2513 | /* select BNC inputs */ |
681d335a | 2514 | devpriv->i2c_cal_range_bits |= adc_src_4020_bits(4); |
12f992ad | 2515 | /* select ranges */ |
88b12a9a FMH |
2516 | for (i = 0; i < cmd->chanlist_len; i++) { |
2517 | unsigned int channel = CR_CHAN(cmd->chanlist[i]); | |
2518 | unsigned int range = CR_RANGE(cmd->chanlist[i]); | |
2519 | ||
2520 | if (range == 0) | |
681d335a | 2521 | devpriv->i2c_cal_range_bits |= |
46ca84c4 | 2522 | attenuate_bit(channel); |
88b12a9a | 2523 | else |
681d335a | 2524 | devpriv->i2c_cal_range_bits &= |
46ca84c4 | 2525 | ~attenuate_bit(channel); |
88b12a9a | 2526 | } |
85c12b82 AD |
2527 | /* |
2528 | * update calibration/range i2c register only if necessary, | |
2529 | * as it is very slow | |
2530 | */ | |
681d335a HS |
2531 | if (old_cal_range_bits != devpriv->i2c_cal_range_bits) { |
2532 | uint8_t i2c_data = devpriv->i2c_cal_range_bits; | |
43358ed0 | 2533 | |
88b12a9a | 2534 | i2c_write(dev, RANGE_CAL_I2C_ADDR, &i2c_data, |
0a85b6f0 | 2535 | sizeof(i2c_data)); |
88b12a9a FMH |
2536 | } |
2537 | } | |
2538 | return 0; | |
2539 | } | |
2540 | ||
da91b269 | 2541 | static inline void load_first_dma_descriptor(struct comedi_device *dev, |
0a85b6f0 MT |
2542 | unsigned int dma_channel, |
2543 | unsigned int descriptor_bits) | |
88b12a9a | 2544 | { |
681d335a HS |
2545 | struct pcidas64_private *devpriv = dev->private; |
2546 | ||
85c12b82 AD |
2547 | /* |
2548 | * The transfer size, pci address, and local address registers | |
88b12a9a FMH |
2549 | * are supposedly unused during chained dma, |
2550 | * but I have found that left over values from last operation | |
2551 | * occasionally cause problems with transfer of first dma | |
85c12b82 AD |
2552 | * block. Initializing them to zero seems to fix the problem. |
2553 | */ | |
88b12a9a | 2554 | if (dma_channel) { |
c644a11a IA |
2555 | writel(0, devpriv->plx9080_iobase + PLX_REG_DMASIZ1); |
2556 | writel(0, devpriv->plx9080_iobase + PLX_REG_DMAPADR1); | |
2557 | writel(0, devpriv->plx9080_iobase + PLX_REG_DMALADR1); | |
88b12a9a | 2558 | writel(descriptor_bits, |
c644a11a | 2559 | devpriv->plx9080_iobase + PLX_REG_DMADPR1); |
88b12a9a | 2560 | } else { |
c644a11a IA |
2561 | writel(0, devpriv->plx9080_iobase + PLX_REG_DMASIZ0); |
2562 | writel(0, devpriv->plx9080_iobase + PLX_REG_DMAPADR0); | |
2563 | writel(0, devpriv->plx9080_iobase + PLX_REG_DMALADR0); | |
88b12a9a | 2564 | writel(descriptor_bits, |
c644a11a | 2565 | devpriv->plx9080_iobase + PLX_REG_DMADPR0); |
88b12a9a FMH |
2566 | } |
2567 | } | |
2568 | ||
da91b269 | 2569 | static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
88b12a9a | 2570 | { |
52762ad1 | 2571 | const struct pcidas64_board *board = dev->board_ptr; |
681d335a | 2572 | struct pcidas64_private *devpriv = dev->private; |
d163679c | 2573 | struct comedi_async *async = s->async; |
ea6d0d4c | 2574 | struct comedi_cmd *cmd = &async->cmd; |
88b12a9a FMH |
2575 | uint32_t bits; |
2576 | unsigned int i; | |
2577 | unsigned long flags; | |
2578 | int retval; | |
2579 | ||
2580 | disable_ai_pacing(dev); | |
2581 | abort_dma(dev, 1); | |
2582 | ||
2583 | retval = setup_channel_queue(dev, cmd); | |
2584 | if (retval < 0) | |
2585 | return retval; | |
2586 | ||
12f992ad | 2587 | /* make sure internal calibration source is turned off */ |
681d335a | 2588 | writew(0, devpriv->main_iobase + CALIBRATION_REG); |
88b12a9a FMH |
2589 | |
2590 | set_ai_pacing(dev, cmd); | |
2591 | ||
2592 | setup_sample_counters(dev, cmd); | |
2593 | ||
2594 | enable_ai_interrupts(dev, cmd); | |
2595 | ||
5f74ea14 | 2596 | spin_lock_irqsave(&dev->spinlock, flags); |
88b12a9a | 2597 | /* set mode, allow conversions through software gate */ |
681d335a HS |
2598 | devpriv->adc_control1_bits |= ADC_SW_GATE_BIT; |
2599 | devpriv->adc_control1_bits &= ~ADC_DITHER_BIT; | |
52762ad1 | 2600 | if (board->layout != LAYOUT_4020) { |
681d335a | 2601 | devpriv->adc_control1_bits &= ~ADC_MODE_MASK; |
88b12a9a | 2602 | if (cmd->convert_src == TRIG_EXT) |
12f992ad | 2603 | /* good old mode 13 */ |
46ca84c4 | 2604 | devpriv->adc_control1_bits |= adc_mode_bits(13); |
88b12a9a | 2605 | else |
12f992ad | 2606 | /* mode 8. What else could you need? */ |
46ca84c4 | 2607 | devpriv->adc_control1_bits |= adc_mode_bits(8); |
88b12a9a | 2608 | } else { |
681d335a | 2609 | devpriv->adc_control1_bits &= ~CHANNEL_MODE_4020_MASK; |
88b12a9a | 2610 | if (cmd->chanlist_len == 4) |
681d335a | 2611 | devpriv->adc_control1_bits |= FOUR_CHANNEL_4020_BITS; |
88b12a9a | 2612 | else if (cmd->chanlist_len == 2) |
681d335a HS |
2613 | devpriv->adc_control1_bits |= TWO_CHANNEL_4020_BITS; |
2614 | devpriv->adc_control1_bits &= ~ADC_LO_CHANNEL_4020_MASK; | |
2615 | devpriv->adc_control1_bits |= | |
46ca84c4 | 2616 | adc_lo_chan_4020_bits(CR_CHAN(cmd->chanlist[0])); |
681d335a HS |
2617 | devpriv->adc_control1_bits &= ~ADC_HI_CHANNEL_4020_MASK; |
2618 | devpriv->adc_control1_bits |= | |
46ca84c4 IA |
2619 | adc_hi_chan_4020_bits(CR_CHAN(cmd->chanlist |
2620 | [cmd->chanlist_len - 1])); | |
88b12a9a | 2621 | } |
681d335a HS |
2622 | writew(devpriv->adc_control1_bits, |
2623 | devpriv->main_iobase + ADC_CONTROL1_REG); | |
5f74ea14 | 2624 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a | 2625 | |
12f992ad | 2626 | /* clear adc buffer */ |
681d335a | 2627 | writew(0, devpriv->main_iobase + ADC_BUFFER_CLEAR_REG); |
88b12a9a | 2628 | |
0ad08e4b | 2629 | if ((cmd->flags & CMDF_WAKE_EOS) == 0 || |
52762ad1 | 2630 | board->layout == LAYOUT_4020) { |
681d335a | 2631 | devpriv->ai_dma_index = 0; |
88b12a9a | 2632 | |
12f992ad | 2633 | /* set dma transfer size */ |
52762ad1 | 2634 | for (i = 0; i < ai_dma_ring_count(board); i++) |
681d335a | 2635 | devpriv->ai_dma_desc[i].transfer_size = |
46ca84c4 IA |
2636 | cpu_to_le32(dma_transfer_size(dev) * |
2637 | sizeof(uint16_t)); | |
88b12a9a | 2638 | |
12f992ad | 2639 | /* give location of first dma descriptor */ |
88b12a9a | 2640 | load_first_dma_descriptor(dev, 1, |
681d335a | 2641 | devpriv->ai_dma_desc_bus_addr | |
dde90d89 IA |
2642 | PLX_DMADPR_DESCPCI | |
2643 | PLX_DMADPR_TCINTR | | |
2644 | PLX_DMADPR_XFERL2P); | |
88b12a9a FMH |
2645 | |
2646 | dma_start_sync(dev, 1); | |
2647 | } | |
2648 | ||
52762ad1 | 2649 | if (board->layout == LAYOUT_4020) { |
88b12a9a FMH |
2650 | /* set source for external triggers */ |
2651 | bits = 0; | |
2652 | if (cmd->start_src == TRIG_EXT && CR_CHAN(cmd->start_arg)) | |
2653 | bits |= EXT_START_TRIG_BNC_BIT; | |
2654 | if (cmd->stop_src == TRIG_EXT && CR_CHAN(cmd->stop_arg)) | |
2655 | bits |= EXT_STOP_TRIG_BNC_BIT; | |
681d335a | 2656 | writew(bits, devpriv->main_iobase + DAQ_ATRIG_LOW_4020_REG); |
88b12a9a FMH |
2657 | } |
2658 | ||
5f74ea14 | 2659 | spin_lock_irqsave(&dev->spinlock, flags); |
88b12a9a FMH |
2660 | |
2661 | /* enable pacing, triggering, etc */ | |
2662 | bits = ADC_ENABLE_BIT | ADC_SOFT_GATE_BITS | ADC_GATE_LEVEL_BIT; | |
0ad08e4b | 2663 | if (cmd->flags & CMDF_WAKE_EOS) |
88b12a9a | 2664 | bits |= ADC_DMA_DISABLE_BIT; |
12f992ad | 2665 | /* set start trigger */ |
88b12a9a FMH |
2666 | if (cmd->start_src == TRIG_EXT) { |
2667 | bits |= ADC_START_TRIG_EXT_BITS; | |
2668 | if (cmd->start_arg & CR_INVERT) | |
2669 | bits |= ADC_START_TRIG_FALLING_BIT; | |
6ac986d0 | 2670 | } else if (cmd->start_src == TRIG_NOW) { |
88b12a9a | 2671 | bits |= ADC_START_TRIG_SOFT_BITS; |
6ac986d0 | 2672 | } |
88b12a9a FMH |
2673 | if (use_hw_sample_counter(cmd)) |
2674 | bits |= ADC_SAMPLE_COUNTER_EN_BIT; | |
681d335a | 2675 | writew(bits, devpriv->main_iobase + ADC_CONTROL0_REG); |
88b12a9a | 2676 | |
681d335a | 2677 | devpriv->ai_cmd_running = 1; |
88b12a9a | 2678 | |
5f74ea14 | 2679 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a | 2680 | |
12f992ad | 2681 | /* start acquisition */ |
220edb91 | 2682 | if (cmd->start_src == TRIG_NOW) |
681d335a | 2683 | writew(0, devpriv->main_iobase + ADC_START_REG); |
88b12a9a FMH |
2684 | |
2685 | return 0; | |
2686 | } | |
2687 | ||
9ef4dea6 | 2688 | /* read num_samples from 16 bit wide ai fifo */ |
da91b269 | 2689 | static void pio_drain_ai_fifo_16(struct comedi_device *dev) |
88b12a9a | 2690 | { |
681d335a | 2691 | struct pcidas64_private *devpriv = dev->private; |
34c43922 | 2692 | struct comedi_subdevice *s = dev->read_subdev; |
88b12a9a FMH |
2693 | unsigned int i; |
2694 | uint16_t prepost_bits; | |
2695 | int read_segment, read_index, write_segment, write_index; | |
2696 | int num_samples; | |
2697 | ||
2698 | do { | |
12f992ad | 2699 | /* get least significant 15 bits */ |
46ca84c4 IA |
2700 | read_index = readw(devpriv->main_iobase + ADC_READ_PNTR_REG) & |
2701 | 0x7fff; | |
2702 | write_index = readw(devpriv->main_iobase + ADC_WRITE_PNTR_REG) & | |
2703 | 0x7fff; | |
85c12b82 AD |
2704 | /* |
2705 | * Get most significant bits (grey code). | |
46ca84c4 IA |
2706 | * Different boards use different code so use a scheme |
2707 | * that doesn't depend on encoding. This read must | |
88b12a9a | 2708 | * occur after reading least significant 15 bits to avoid race |
85c12b82 AD |
2709 | * with fifo switching to next segment. |
2710 | */ | |
681d335a | 2711 | prepost_bits = readw(devpriv->main_iobase + PREPOST_REG); |
88b12a9a | 2712 | |
85c12b82 AD |
2713 | /* |
2714 | * if read and write pointers are not on the same fifo segment, | |
2715 | * read to the end of the read segment | |
2716 | */ | |
88b12a9a FMH |
2717 | read_segment = adc_upper_read_ptr_code(prepost_bits); |
2718 | write_segment = adc_upper_write_ptr_code(prepost_bits); | |
2719 | ||
88b12a9a FMH |
2720 | if (read_segment != write_segment) |
2721 | num_samples = | |
46ca84c4 | 2722 | devpriv->ai_fifo_segment_length - read_index; |
88b12a9a FMH |
2723 | else |
2724 | num_samples = write_index - read_index; | |
88b12a9a | 2725 | if (num_samples < 0) { |
f41ad667 IA |
2726 | dev_err(dev->class_dev, |
2727 | "cb_pcidas64: bug! num_samples < 0\n"); | |
88b12a9a FMH |
2728 | break; |
2729 | } | |
2730 | ||
ccedb440 HS |
2731 | num_samples = comedi_nsamples_left(s, num_samples); |
2732 | if (num_samples == 0) | |
2733 | break; | |
2734 | ||
88b12a9a | 2735 | for (i = 0; i < num_samples; i++) { |
7ba38a01 HS |
2736 | unsigned short val; |
2737 | ||
2738 | val = readw(devpriv->main_iobase + ADC_FIFO_REG); | |
2739 | comedi_buf_write_samples(s, &val, 1); | |
88b12a9a FMH |
2740 | } |
2741 | ||
2742 | } while (read_segment != write_segment); | |
2743 | } | |
2744 | ||
85c12b82 AD |
2745 | /* |
2746 | * Read from 32 bit wide ai fifo of 4020 - deal with insane grey coding of | |
46ca84c4 IA |
2747 | * pointers. The pci-4020 hardware only supports dma transfers (it only |
2748 | * supports the use of pio for draining the last remaining points from the | |
2749 | * fifo when a data acquisition operation has completed). | |
88b12a9a | 2750 | */ |
da91b269 | 2751 | static void pio_drain_ai_fifo_32(struct comedi_device *dev) |
88b12a9a | 2752 | { |
681d335a | 2753 | struct pcidas64_private *devpriv = dev->private; |
34c43922 | 2754 | struct comedi_subdevice *s = dev->read_subdev; |
ccedb440 | 2755 | unsigned int nsamples; |
88b12a9a | 2756 | unsigned int i; |
88b12a9a FMH |
2757 | uint32_t fifo_data; |
2758 | int write_code = | |
46ca84c4 | 2759 | readw(devpriv->main_iobase + ADC_WRITE_PNTR_REG) & 0x7fff; |
88b12a9a | 2760 | int read_code = |
46ca84c4 | 2761 | readw(devpriv->main_iobase + ADC_READ_PNTR_REG) & 0x7fff; |
88b12a9a | 2762 | |
ccedb440 HS |
2763 | nsamples = comedi_nsamples_left(s, 100000); |
2764 | for (i = 0; read_code != write_code && i < nsamples;) { | |
7ba38a01 HS |
2765 | unsigned short val; |
2766 | ||
9ebd1028 | 2767 | fifo_data = readl(dev->mmio + ADC_FIFO_REG); |
7ba38a01 HS |
2768 | val = fifo_data & 0xffff; |
2769 | comedi_buf_write_samples(s, &val, 1); | |
88b12a9a | 2770 | i++; |
ccedb440 | 2771 | if (i < nsamples) { |
7ba38a01 HS |
2772 | val = (fifo_data >> 16) & 0xffff; |
2773 | comedi_buf_write_samples(s, &val, 1); | |
88b12a9a FMH |
2774 | i++; |
2775 | } | |
46ca84c4 IA |
2776 | read_code = readw(devpriv->main_iobase + ADC_READ_PNTR_REG) & |
2777 | 0x7fff; | |
88b12a9a | 2778 | } |
88b12a9a FMH |
2779 | } |
2780 | ||
9ef4dea6 | 2781 | /* empty fifo */ |
da91b269 | 2782 | static void pio_drain_ai_fifo(struct comedi_device *dev) |
88b12a9a | 2783 | { |
52762ad1 | 2784 | const struct pcidas64_board *board = dev->board_ptr; |
b07244ce | 2785 | |
52762ad1 | 2786 | if (board->layout == LAYOUT_4020) |
88b12a9a | 2787 | pio_drain_ai_fifo_32(dev); |
90cae794 | 2788 | else |
88b12a9a FMH |
2789 | pio_drain_ai_fifo_16(dev); |
2790 | } | |
2791 | ||
da91b269 | 2792 | static void drain_dma_buffers(struct comedi_device *dev, unsigned int channel) |
88b12a9a | 2793 | { |
52762ad1 | 2794 | const struct pcidas64_board *board = dev->board_ptr; |
681d335a | 2795 | struct pcidas64_private *devpriv = dev->private; |
ccedb440 | 2796 | struct comedi_subdevice *s = dev->read_subdev; |
88b12a9a FMH |
2797 | uint32_t next_transfer_addr; |
2798 | int j; | |
2799 | int num_samples = 0; | |
f31d0008 | 2800 | void __iomem *pci_addr_reg; |
88b12a9a | 2801 | |
c644a11a | 2802 | pci_addr_reg = devpriv->plx9080_iobase + PLX_REG_DMAPADR(channel); |
88b12a9a | 2803 | |
12f992ad | 2804 | /* loop until we have read all the full buffers */ |
88b12a9a | 2805 | for (j = 0, next_transfer_addr = readl(pci_addr_reg); |
0a85b6f0 | 2806 | (next_transfer_addr < |
46ca84c4 IA |
2807 | devpriv->ai_buffer_bus_addr[devpriv->ai_dma_index] || |
2808 | next_transfer_addr >= | |
681d335a | 2809 | devpriv->ai_buffer_bus_addr[devpriv->ai_dma_index] + |
52762ad1 | 2810 | DMA_BUFFER_SIZE) && j < ai_dma_ring_count(board); j++) { |
12f992ad | 2811 | /* transfer data from dma buffer to comedi buffer */ |
ccedb440 HS |
2812 | num_samples = comedi_nsamples_left(s, dma_transfer_size(dev)); |
2813 | comedi_buf_write_samples(s, | |
7ba38a01 HS |
2814 | devpriv->ai_buffer[devpriv->ai_dma_index], |
2815 | num_samples); | |
46ca84c4 | 2816 | devpriv->ai_dma_index = (devpriv->ai_dma_index + 1) % |
52762ad1 | 2817 | ai_dma_ring_count(board); |
88b12a9a | 2818 | } |
85c12b82 AD |
2819 | /* |
2820 | * XXX check for dma ring buffer overrun | |
2821 | * (use end-of-chain bit to mark last unused buffer) | |
2822 | */ | |
88b12a9a FMH |
2823 | } |
2824 | ||
f31d0008 GKH |
2825 | static void handle_ai_interrupt(struct comedi_device *dev, |
2826 | unsigned short status, | |
2827 | unsigned int plx_status) | |
88b12a9a | 2828 | { |
52762ad1 | 2829 | const struct pcidas64_board *board = dev->board_ptr; |
681d335a | 2830 | struct pcidas64_private *devpriv = dev->private; |
34c43922 | 2831 | struct comedi_subdevice *s = dev->read_subdev; |
d163679c | 2832 | struct comedi_async *async = s->async; |
ea6d0d4c | 2833 | struct comedi_cmd *cmd = &async->cmd; |
88b12a9a FMH |
2834 | uint8_t dma1_status; |
2835 | unsigned long flags; | |
2836 | ||
12f992ad | 2837 | /* check for fifo overrun */ |
88b12a9a | 2838 | if (status & ADC_OVERRUN_BIT) { |
e176d78c | 2839 | dev_err(dev->class_dev, "fifo overrun\n"); |
3e6cb74f | 2840 | async->events |= COMEDI_CB_ERROR; |
88b12a9a | 2841 | } |
12f992ad | 2842 | /* spin lock makes sure no one else changes plx dma control reg */ |
5f74ea14 | 2843 | spin_lock_irqsave(&dev->spinlock, flags); |
c644a11a | 2844 | dma1_status = readb(devpriv->plx9080_iobase + PLX_REG_DMACSR1); |
12f992ad | 2845 | if (plx_status & PLX_INTCSR_DMA1IA) { /* dma chan 1 interrupt */ |
3dcf1b55 | 2846 | writeb((dma1_status & PLX_DMACSR_ENABLE) | PLX_DMACSR_CLEARINTR, |
c644a11a | 2847 | devpriv->plx9080_iobase + PLX_REG_DMACSR1); |
88b12a9a | 2848 | |
3dcf1b55 | 2849 | if (dma1_status & PLX_DMACSR_ENABLE) |
88b12a9a | 2850 | drain_dma_buffers(dev, 1); |
88b12a9a | 2851 | } |
5f74ea14 | 2852 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a | 2853 | |
12f992ad | 2854 | /* drain fifo with pio */ |
88b12a9a | 2855 | if ((status & ADC_DONE_BIT) || |
0ad08e4b | 2856 | ((cmd->flags & CMDF_WAKE_EOS) && |
0a85b6f0 | 2857 | (status & ADC_INTR_PENDING_BIT) && |
52762ad1 | 2858 | (board->layout != LAYOUT_4020))) { |
5f74ea14 | 2859 | spin_lock_irqsave(&dev->spinlock, flags); |
681d335a | 2860 | if (devpriv->ai_cmd_running) { |
5f74ea14 | 2861 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a | 2862 | pio_drain_ai_fifo(dev); |
6ac986d0 | 2863 | } else { |
5f74ea14 | 2864 | spin_unlock_irqrestore(&dev->spinlock, flags); |
6ac986d0 | 2865 | } |
88b12a9a | 2866 | } |
12f992ad | 2867 | /* if we are have all the data, then quit */ |
ccedb440 HS |
2868 | if ((cmd->stop_src == TRIG_COUNT && |
2869 | async->scans_done >= cmd->stop_arg) || | |
2870 | (cmd->stop_src == TRIG_EXT && (status & ADC_STOP_BIT))) | |
88b12a9a | 2871 | async->events |= COMEDI_CB_EOA; |
88b12a9a | 2872 | |
62fc6407 | 2873 | comedi_handle_events(dev, s); |
88b12a9a FMH |
2874 | } |
2875 | ||
da91b269 | 2876 | static inline unsigned int prev_ao_dma_index(struct comedi_device *dev) |
88b12a9a | 2877 | { |
681d335a | 2878 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2879 | unsigned int buffer_index; |
2880 | ||
681d335a | 2881 | if (devpriv->ao_dma_index == 0) |
88b12a9a FMH |
2882 | buffer_index = AO_DMA_RING_COUNT - 1; |
2883 | else | |
681d335a | 2884 | buffer_index = devpriv->ao_dma_index - 1; |
88b12a9a FMH |
2885 | return buffer_index; |
2886 | } | |
2887 | ||
da91b269 | 2888 | static int last_ao_dma_load_completed(struct comedi_device *dev) |
88b12a9a | 2889 | { |
681d335a | 2890 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2891 | unsigned int buffer_index; |
2892 | unsigned int transfer_address; | |
2893 | unsigned short dma_status; | |
2894 | ||
2895 | buffer_index = prev_ao_dma_index(dev); | |
c644a11a | 2896 | dma_status = readb(devpriv->plx9080_iobase + PLX_REG_DMACSR0); |
3dcf1b55 | 2897 | if ((dma_status & PLX_DMACSR_DONE) == 0) |
88b12a9a FMH |
2898 | return 0; |
2899 | ||
2900 | transfer_address = | |
c644a11a | 2901 | readl(devpriv->plx9080_iobase + PLX_REG_DMAPADR0); |
681d335a | 2902 | if (transfer_address != devpriv->ao_buffer_bus_addr[buffer_index]) |
88b12a9a FMH |
2903 | return 0; |
2904 | ||
2905 | return 1; | |
2906 | } | |
2907 | ||
da91b269 | 2908 | static inline int ao_dma_needs_restart(struct comedi_device *dev, |
0a85b6f0 | 2909 | unsigned short dma_status) |
88b12a9a | 2910 | { |
3dcf1b55 IA |
2911 | if ((dma_status & PLX_DMACSR_DONE) == 0 || |
2912 | (dma_status & PLX_DMACSR_ENABLE) == 0) | |
88b12a9a FMH |
2913 | return 0; |
2914 | if (last_ao_dma_load_completed(dev)) | |
2915 | return 0; | |
2916 | ||
2917 | return 1; | |
2918 | } | |
2919 | ||
da91b269 | 2920 | static void restart_ao_dma(struct comedi_device *dev) |
88b12a9a | 2921 | { |
681d335a | 2922 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2923 | unsigned int dma_desc_bits; |
2924 | ||
c644a11a | 2925 | dma_desc_bits = readl(devpriv->plx9080_iobase + PLX_REG_DMADPR0); |
dde90d89 | 2926 | dma_desc_bits &= ~PLX_DMADPR_CHAINEND; |
88b12a9a FMH |
2927 | load_first_dma_descriptor(dev, 0, dma_desc_bits); |
2928 | ||
2929 | dma_start_sync(dev, 0); | |
2930 | } | |
2931 | ||
7bd7d905 HS |
2932 | static unsigned int cb_pcidas64_ao_fill_buffer(struct comedi_device *dev, |
2933 | struct comedi_subdevice *s, | |
2934 | unsigned short *dest, | |
2935 | unsigned int max_bytes) | |
2936 | { | |
c39e050d | 2937 | unsigned int nsamples = comedi_bytes_to_samples(s, max_bytes); |
7bd7d905 HS |
2938 | unsigned int actual_bytes; |
2939 | ||
0be887b9 | 2940 | nsamples = comedi_nsamples_left(s, nsamples); |
7bd7d905 | 2941 | actual_bytes = comedi_buf_read_samples(s, dest, nsamples); |
7bd7d905 | 2942 | |
0be887b9 | 2943 | return comedi_bytes_to_samples(s, actual_bytes); |
7bd7d905 HS |
2944 | } |
2945 | ||
dd379fa2 IA |
2946 | static unsigned int load_ao_dma_buffer(struct comedi_device *dev, |
2947 | const struct comedi_cmd *cmd) | |
2948 | { | |
2949 | struct pcidas64_private *devpriv = dev->private; | |
7bd7d905 HS |
2950 | struct comedi_subdevice *s = dev->write_subdev; |
2951 | unsigned int buffer_index = devpriv->ao_dma_index; | |
2952 | unsigned int prev_buffer_index = prev_ao_dma_index(dev); | |
2953 | unsigned int nsamples; | |
2954 | unsigned int nbytes; | |
dd379fa2 IA |
2955 | unsigned int next_bits; |
2956 | ||
7bd7d905 HS |
2957 | nsamples = cb_pcidas64_ao_fill_buffer(dev, s, |
2958 | devpriv->ao_buffer[buffer_index], | |
2959 | DMA_BUFFER_SIZE); | |
2960 | if (nsamples == 0) | |
dd379fa2 IA |
2961 | return 0; |
2962 | ||
c39e050d | 2963 | nbytes = comedi_samples_to_bytes(s, nsamples); |
7bd7d905 | 2964 | devpriv->ao_dma_desc[buffer_index].transfer_size = cpu_to_le32(nbytes); |
dd379fa2 IA |
2965 | /* set end of chain bit so we catch underruns */ |
2966 | next_bits = le32_to_cpu(devpriv->ao_dma_desc[buffer_index].next); | |
dde90d89 | 2967 | next_bits |= PLX_DMADPR_CHAINEND; |
dd379fa2 | 2968 | devpriv->ao_dma_desc[buffer_index].next = cpu_to_le32(next_bits); |
85c12b82 AD |
2969 | /* |
2970 | * clear end of chain bit on previous buffer now that we have set it | |
2971 | * for the last buffer | |
2972 | */ | |
dd379fa2 | 2973 | next_bits = le32_to_cpu(devpriv->ao_dma_desc[prev_buffer_index].next); |
dde90d89 | 2974 | next_bits &= ~PLX_DMADPR_CHAINEND; |
dd379fa2 IA |
2975 | devpriv->ao_dma_desc[prev_buffer_index].next = cpu_to_le32(next_bits); |
2976 | ||
2977 | devpriv->ao_dma_index = (buffer_index + 1) % AO_DMA_RING_COUNT; | |
dd379fa2 | 2978 | |
7bd7d905 | 2979 | return nbytes; |
dd379fa2 IA |
2980 | } |
2981 | ||
2982 | static void load_ao_dma(struct comedi_device *dev, const struct comedi_cmd *cmd) | |
2983 | { | |
2984 | struct pcidas64_private *devpriv = dev->private; | |
2985 | unsigned int num_bytes; | |
2986 | unsigned int next_transfer_addr; | |
c644a11a | 2987 | void __iomem *pci_addr_reg = devpriv->plx9080_iobase + PLX_REG_DMAPADR0; |
dd379fa2 IA |
2988 | unsigned int buffer_index; |
2989 | ||
2990 | do { | |
2991 | buffer_index = devpriv->ao_dma_index; | |
2992 | /* don't overwrite data that hasn't been transferred yet */ | |
2993 | next_transfer_addr = readl(pci_addr_reg); | |
2994 | if (next_transfer_addr >= | |
2995 | devpriv->ao_buffer_bus_addr[buffer_index] && | |
2996 | next_transfer_addr < | |
2997 | devpriv->ao_buffer_bus_addr[buffer_index] + | |
2998 | DMA_BUFFER_SIZE) | |
2999 | return; | |
3000 | num_bytes = load_ao_dma_buffer(dev, cmd); | |
3001 | } while (num_bytes >= DMA_BUFFER_SIZE); | |
3002 | } | |
3003 | ||
0a85b6f0 MT |
3004 | static void handle_ao_interrupt(struct comedi_device *dev, |
3005 | unsigned short status, unsigned int plx_status) | |
88b12a9a | 3006 | { |
681d335a | 3007 | struct pcidas64_private *devpriv = dev->private; |
34c43922 | 3008 | struct comedi_subdevice *s = dev->write_subdev; |
d163679c | 3009 | struct comedi_async *async; |
ea6d0d4c | 3010 | struct comedi_cmd *cmd; |
88b12a9a FMH |
3011 | uint8_t dma0_status; |
3012 | unsigned long flags; | |
3013 | ||
3014 | /* board might not support ao, in which case write_subdev is NULL */ | |
854472c2 | 3015 | if (!s) |
88b12a9a FMH |
3016 | return; |
3017 | async = s->async; | |
3018 | cmd = &async->cmd; | |
3019 | ||
12f992ad | 3020 | /* spin lock makes sure no one else changes plx dma control reg */ |
5f74ea14 | 3021 | spin_lock_irqsave(&dev->spinlock, flags); |
c644a11a | 3022 | dma0_status = readb(devpriv->plx9080_iobase + PLX_REG_DMACSR0); |
9dc53852 | 3023 | if (plx_status & PLX_INTCSR_DMA0IA) { /* dma chan 0 interrupt */ |
3dcf1b55 IA |
3024 | if ((dma0_status & PLX_DMACSR_ENABLE) && |
3025 | !(dma0_status & PLX_DMACSR_DONE)) { | |
3026 | writeb(PLX_DMACSR_ENABLE | PLX_DMACSR_CLEARINTR, | |
c644a11a IA |
3027 | devpriv->plx9080_iobase + PLX_REG_DMACSR0); |
3028 | } else { | |
3dcf1b55 | 3029 | writeb(PLX_DMACSR_CLEARINTR, |
c644a11a IA |
3030 | devpriv->plx9080_iobase + PLX_REG_DMACSR0); |
3031 | } | |
5f74ea14 | 3032 | spin_unlock_irqrestore(&dev->spinlock, flags); |
3dcf1b55 | 3033 | if (dma0_status & PLX_DMACSR_ENABLE) { |
88b12a9a FMH |
3034 | load_ao_dma(dev, cmd); |
3035 | /* try to recover from dma end-of-chain event */ | |
3036 | if (ao_dma_needs_restart(dev, dma0_status)) | |
3037 | restart_ao_dma(dev); | |
3038 | } | |
46ca84c4 | 3039 | } else { |
5f74ea14 | 3040 | spin_unlock_irqrestore(&dev->spinlock, flags); |
46ca84c4 | 3041 | } |
88b12a9a FMH |
3042 | |
3043 | if ((status & DAC_DONE_BIT)) { | |
0be887b9 HS |
3044 | if ((cmd->stop_src == TRIG_COUNT && |
3045 | async->scans_done >= cmd->stop_arg) || | |
3046 | last_ao_dma_load_completed(dev)) | |
3047 | async->events |= COMEDI_CB_EOA; | |
3048 | else | |
88b12a9a | 3049 | async->events |= COMEDI_CB_ERROR; |
88b12a9a | 3050 | } |
62fc6407 | 3051 | comedi_handle_events(dev, s); |
88b12a9a FMH |
3052 | } |
3053 | ||
70265d24 | 3054 | static irqreturn_t handle_interrupt(int irq, void *d) |
88b12a9a | 3055 | { |
71b5f4f1 | 3056 | struct comedi_device *dev = d; |
681d335a | 3057 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3058 | unsigned short status; |
3059 | uint32_t plx_status; | |
3060 | uint32_t plx_bits; | |
3061 | ||
c644a11a | 3062 | plx_status = readl(devpriv->plx9080_iobase + PLX_REG_INTCSR); |
681d335a | 3063 | status = readw(devpriv->main_iobase + HW_STATUS_REG); |
88b12a9a | 3064 | |
85c12b82 AD |
3065 | /* |
3066 | * an interrupt before all the postconfig stuff gets done could | |
88b12a9a | 3067 | * cause a NULL dereference if we continue through the |
85c12b82 AD |
3068 | * interrupt handler |
3069 | */ | |
220edb91 | 3070 | if (!dev->attached) |
88b12a9a | 3071 | return IRQ_HANDLED; |
220edb91 | 3072 | |
88b12a9a FMH |
3073 | handle_ai_interrupt(dev, status, plx_status); |
3074 | handle_ao_interrupt(dev, status, plx_status); | |
3075 | ||
9dc53852 IA |
3076 | /* clear possible plx9080 interrupt sources */ |
3077 | if (plx_status & PLX_INTCSR_LDBIA) { | |
3078 | /* clear local doorbell interrupt */ | |
c644a11a IA |
3079 | plx_bits = readl(devpriv->plx9080_iobase + PLX_REG_L2PDBELL); |
3080 | writel(plx_bits, devpriv->plx9080_iobase + PLX_REG_L2PDBELL); | |
88b12a9a FMH |
3081 | } |
3082 | ||
88b12a9a FMH |
3083 | return IRQ_HANDLED; |
3084 | } | |
3085 | ||
da91b269 | 3086 | static int ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) |
88b12a9a | 3087 | { |
681d335a | 3088 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3089 | unsigned long flags; |
3090 | ||
5f74ea14 | 3091 | spin_lock_irqsave(&dev->spinlock, flags); |
681d335a | 3092 | if (devpriv->ai_cmd_running == 0) { |
5f74ea14 | 3093 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a FMH |
3094 | return 0; |
3095 | } | |
681d335a | 3096 | devpriv->ai_cmd_running = 0; |
5f74ea14 | 3097 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a FMH |
3098 | |
3099 | disable_ai_pacing(dev); | |
3100 | ||
3101 | abort_dma(dev, 1); | |
3102 | ||
88b12a9a FMH |
3103 | return 0; |
3104 | } | |
3105 | ||
da91b269 | 3106 | static int ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 3107 | struct comedi_insn *insn, unsigned int *data) |
88b12a9a | 3108 | { |
52762ad1 | 3109 | const struct pcidas64_board *board = dev->board_ptr; |
681d335a | 3110 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3111 | int chan = CR_CHAN(insn->chanspec); |
3112 | int range = CR_RANGE(insn->chanspec); | |
3113 | ||
12f992ad | 3114 | /* do some initializing */ |
681d335a | 3115 | writew(0, devpriv->main_iobase + DAC_CONTROL0_REG); |
88b12a9a | 3116 | |
12f992ad | 3117 | /* set range */ |
681d335a HS |
3118 | set_dac_range_bits(dev, &devpriv->dac_control1_bits, chan, range); |
3119 | writew(devpriv->dac_control1_bits, | |
3120 | devpriv->main_iobase + DAC_CONTROL1_REG); | |
88b12a9a | 3121 | |
12f992ad | 3122 | /* write to channel */ |
52762ad1 | 3123 | if (board->layout == LAYOUT_4020) { |
88b12a9a | 3124 | writew(data[0] & 0xff, |
681d335a | 3125 | devpriv->main_iobase + dac_lsb_4020_reg(chan)); |
88b12a9a | 3126 | writew((data[0] >> 8) & 0xf, |
681d335a | 3127 | devpriv->main_iobase + dac_msb_4020_reg(chan)); |
88b12a9a | 3128 | } else { |
681d335a | 3129 | writew(data[0], devpriv->main_iobase + dac_convert_reg(chan)); |
88b12a9a FMH |
3130 | } |
3131 | ||
12f992ad | 3132 | /* remember output value */ |
f88f75fe | 3133 | s->readback[chan] = data[0]; |
88b12a9a FMH |
3134 | |
3135 | return 1; | |
3136 | } | |
3137 | ||
0a85b6f0 MT |
3138 | static void set_dac_control0_reg(struct comedi_device *dev, |
3139 | const struct comedi_cmd *cmd) | |
88b12a9a | 3140 | { |
681d335a | 3141 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a | 3142 | unsigned int bits = DAC_ENABLE_BIT | WAVEFORM_GATE_LEVEL_BIT | |
46ca84c4 | 3143 | WAVEFORM_GATE_ENABLE_BIT | WAVEFORM_GATE_SELECT_BIT; |
88b12a9a FMH |
3144 | |
3145 | if (cmd->start_src == TRIG_EXT) { | |
3146 | bits |= WAVEFORM_TRIG_EXT_BITS; | |
3147 | if (cmd->start_arg & CR_INVERT) | |
3148 | bits |= WAVEFORM_TRIG_FALLING_BIT; | |
3149 | } else { | |
3150 | bits |= WAVEFORM_TRIG_SOFT_BITS; | |
3151 | } | |
3152 | if (cmd->scan_begin_src == TRIG_EXT) { | |
3153 | bits |= DAC_EXT_UPDATE_ENABLE_BIT; | |
3154 | if (cmd->scan_begin_arg & CR_INVERT) | |
3155 | bits |= DAC_EXT_UPDATE_FALLING_BIT; | |
3156 | } | |
681d335a | 3157 | writew(bits, devpriv->main_iobase + DAC_CONTROL0_REG); |
88b12a9a FMH |
3158 | } |
3159 | ||
0a85b6f0 MT |
3160 | static void set_dac_control1_reg(struct comedi_device *dev, |
3161 | const struct comedi_cmd *cmd) | |
88b12a9a | 3162 | { |
681d335a | 3163 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3164 | int i; |
3165 | ||
3166 | for (i = 0; i < cmd->chanlist_len; i++) { | |
3167 | int channel, range; | |
3168 | ||
3169 | channel = CR_CHAN(cmd->chanlist[i]); | |
3170 | range = CR_RANGE(cmd->chanlist[i]); | |
681d335a | 3171 | set_dac_range_bits(dev, &devpriv->dac_control1_bits, channel, |
0a85b6f0 | 3172 | range); |
88b12a9a | 3173 | } |
681d335a HS |
3174 | devpriv->dac_control1_bits |= DAC_SW_GATE_BIT; |
3175 | writew(devpriv->dac_control1_bits, | |
3176 | devpriv->main_iobase + DAC_CONTROL1_REG); | |
88b12a9a FMH |
3177 | } |
3178 | ||
0a85b6f0 MT |
3179 | static void set_dac_select_reg(struct comedi_device *dev, |
3180 | const struct comedi_cmd *cmd) | |
88b12a9a | 3181 | { |
681d335a | 3182 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3183 | uint16_t bits; |
3184 | unsigned int first_channel, last_channel; | |
3185 | ||
3186 | first_channel = CR_CHAN(cmd->chanlist[0]); | |
3187 | last_channel = CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1]); | |
3188 | if (last_channel < first_channel) | |
e176d78c HS |
3189 | dev_err(dev->class_dev, |
3190 | "bug! last ao channel < first ao channel\n"); | |
88b12a9a FMH |
3191 | |
3192 | bits = (first_channel & 0x7) | (last_channel & 0x7) << 3; | |
3193 | ||
681d335a | 3194 | writew(bits, devpriv->main_iobase + DAC_SELECT_REG); |
88b12a9a FMH |
3195 | } |
3196 | ||
012e642c IA |
3197 | static unsigned int get_ao_divisor(unsigned int ns, unsigned int flags) |
3198 | { | |
3199 | return get_divisor(ns, flags) - 2; | |
3200 | } | |
3201 | ||
0a85b6f0 MT |
3202 | static void set_dac_interval_regs(struct comedi_device *dev, |
3203 | const struct comedi_cmd *cmd) | |
88b12a9a | 3204 | { |
681d335a | 3205 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3206 | unsigned int divisor; |
3207 | ||
3208 | if (cmd->scan_begin_src != TRIG_TIMER) | |
3209 | return; | |
3210 | ||
3211 | divisor = get_ao_divisor(cmd->scan_begin_arg, cmd->flags); | |
3212 | if (divisor > max_counter_value) { | |
e176d78c | 3213 | dev_err(dev->class_dev, "bug! ao divisor too big\n"); |
88b12a9a FMH |
3214 | divisor = max_counter_value; |
3215 | } | |
3216 | writew(divisor & 0xffff, | |
681d335a | 3217 | devpriv->main_iobase + DAC_SAMPLE_INTERVAL_LOWER_REG); |
88b12a9a | 3218 | writew((divisor >> 16) & 0xff, |
681d335a | 3219 | devpriv->main_iobase + DAC_SAMPLE_INTERVAL_UPPER_REG); |
88b12a9a FMH |
3220 | } |
3221 | ||
da91b269 | 3222 | static int prep_ao_dma(struct comedi_device *dev, const struct comedi_cmd *cmd) |
88b12a9a | 3223 | { |
681d335a | 3224 | struct pcidas64_private *devpriv = dev->private; |
7bd7d905 HS |
3225 | struct comedi_subdevice *s = dev->write_subdev; |
3226 | unsigned int nsamples; | |
3227 | unsigned int nbytes; | |
88b12a9a FMH |
3228 | int i; |
3229 | ||
85c12b82 AD |
3230 | /* |
3231 | * clear queue pointer too, since external queue has | |
3232 | * weird interactions with ao fifo | |
3233 | */ | |
681d335a HS |
3234 | writew(0, devpriv->main_iobase + ADC_QUEUE_CLEAR_REG); |
3235 | writew(0, devpriv->main_iobase + DAC_BUFFER_CLEAR_REG); | |
88b12a9a | 3236 | |
7bd7d905 HS |
3237 | nsamples = cb_pcidas64_ao_fill_buffer(dev, s, |
3238 | devpriv->ao_bounce_buffer, | |
3239 | DAC_FIFO_SIZE); | |
3240 | if (nsamples == 0) | |
3241 | return -1; | |
3242 | ||
3243 | for (i = 0; i < nsamples; i++) { | |
681d335a HS |
3244 | writew(devpriv->ao_bounce_buffer[i], |
3245 | devpriv->main_iobase + DAC_FIFO_REG); | |
88b12a9a | 3246 | } |
7bd7d905 | 3247 | |
0be887b9 HS |
3248 | if (cmd->stop_src == TRIG_COUNT && |
3249 | s->async->scans_done >= cmd->stop_arg) | |
88b12a9a | 3250 | return 0; |
7bd7d905 HS |
3251 | |
3252 | nbytes = load_ao_dma_buffer(dev, cmd); | |
3253 | if (nbytes == 0) | |
88b12a9a | 3254 | return -1; |
88b12a9a FMH |
3255 | load_ao_dma(dev, cmd); |
3256 | ||
3257 | dma_start_sync(dev, 0); | |
3258 | ||
3259 | return 0; | |
3260 | } | |
3261 | ||
f5f3a2c6 HS |
3262 | static inline int external_ai_queue_in_use(struct comedi_device *dev, |
3263 | struct comedi_subdevice *s, | |
3264 | struct comedi_cmd *cmd) | |
88b12a9a | 3265 | { |
52762ad1 | 3266 | const struct pcidas64_board *board = dev->board_ptr; |
b07244ce | 3267 | |
f5f3a2c6 | 3268 | if (s->busy) |
88b12a9a | 3269 | return 0; |
52762ad1 | 3270 | if (board->layout == LAYOUT_4020) |
88b12a9a | 3271 | return 0; |
f5f3a2c6 | 3272 | else if (use_internal_queue_6xxx(cmd)) |
88b12a9a FMH |
3273 | return 0; |
3274 | return 1; | |
3275 | } | |
3276 | ||
012e642c IA |
3277 | static int ao_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, |
3278 | unsigned int trig_num) | |
3279 | { | |
3280 | struct pcidas64_private *devpriv = dev->private; | |
3281 | struct comedi_cmd *cmd = &s->async->cmd; | |
3282 | int retval; | |
3283 | ||
020cb120 | 3284 | if (trig_num != cmd->start_arg) |
012e642c IA |
3285 | return -EINVAL; |
3286 | ||
3287 | retval = prep_ao_dma(dev, cmd); | |
3288 | if (retval < 0) | |
3289 | return -EPIPE; | |
3290 | ||
3291 | set_dac_control0_reg(dev, cmd); | |
3292 | ||
3293 | if (cmd->start_src == TRIG_INT) | |
3294 | writew(0, devpriv->main_iobase + DAC_START_REG); | |
3295 | ||
3296 | s->async->inttrig = NULL; | |
3297 | ||
3298 | return 0; | |
3299 | } | |
3300 | ||
da91b269 | 3301 | static int ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
88b12a9a | 3302 | { |
681d335a | 3303 | struct pcidas64_private *devpriv = dev->private; |
ea6d0d4c | 3304 | struct comedi_cmd *cmd = &s->async->cmd; |
88b12a9a | 3305 | |
f5f3a2c6 | 3306 | if (external_ai_queue_in_use(dev, s, cmd)) { |
88b12a9a FMH |
3307 | warn_external_queue(dev); |
3308 | return -EBUSY; | |
3309 | } | |
3310 | /* disable analog output system during setup */ | |
681d335a | 3311 | writew(0x0, devpriv->main_iobase + DAC_CONTROL0_REG); |
88b12a9a | 3312 | |
681d335a | 3313 | devpriv->ao_dma_index = 0; |
88b12a9a FMH |
3314 | |
3315 | set_dac_select_reg(dev, cmd); | |
3316 | set_dac_interval_regs(dev, cmd); | |
681d335a | 3317 | load_first_dma_descriptor(dev, 0, devpriv->ao_dma_desc_bus_addr | |
dde90d89 | 3318 | PLX_DMADPR_DESCPCI | PLX_DMADPR_TCINTR); |
88b12a9a FMH |
3319 | |
3320 | set_dac_control1_reg(dev, cmd); | |
3321 | s->async->inttrig = ao_inttrig; | |
3322 | ||
3323 | return 0; | |
3324 | } | |
3325 | ||
e300e4fb HS |
3326 | static int cb_pcidas64_ao_check_chanlist(struct comedi_device *dev, |
3327 | struct comedi_subdevice *s, | |
3328 | struct comedi_cmd *cmd) | |
3329 | { | |
3330 | unsigned int chan0 = CR_CHAN(cmd->chanlist[0]); | |
3331 | int i; | |
3332 | ||
3333 | for (i = 1; i < cmd->chanlist_len; i++) { | |
3334 | unsigned int chan = CR_CHAN(cmd->chanlist[i]); | |
3335 | ||
3336 | if (chan != (chan0 + i)) { | |
3337 | dev_dbg(dev->class_dev, | |
3338 | "chanlist must use consecutive channels\n"); | |
3339 | return -EINVAL; | |
3340 | } | |
3341 | } | |
3342 | ||
3343 | return 0; | |
3344 | } | |
3345 | ||
da91b269 | 3346 | static int ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 3347 | struct comedi_cmd *cmd) |
88b12a9a | 3348 | { |
52762ad1 | 3349 | const struct pcidas64_board *board = dev->board_ptr; |
88b12a9a | 3350 | int err = 0; |
88b12a9a | 3351 | unsigned int tmp_arg; |
88b12a9a | 3352 | |
27020ffe | 3353 | /* Step 1 : check if triggers are trivially valid */ |
88b12a9a | 3354 | |
571cea09 IA |
3355 | err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT | TRIG_EXT); |
3356 | err |= comedi_check_trigger_src(&cmd->scan_begin_src, | |
3357 | TRIG_TIMER | TRIG_EXT); | |
3358 | err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW); | |
3359 | err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); | |
3360 | err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE); | |
88b12a9a FMH |
3361 | |
3362 | if (err) | |
3363 | return 1; | |
3364 | ||
27020ffe | 3365 | /* Step 2a : make sure trigger sources are unique */ |
88b12a9a | 3366 | |
571cea09 IA |
3367 | err |= comedi_check_trigger_is_unique(cmd->start_src); |
3368 | err |= comedi_check_trigger_is_unique(cmd->scan_begin_src); | |
27020ffe HS |
3369 | |
3370 | /* Step 2b : and mutually compatible */ | |
88b12a9a | 3371 | |
88b12a9a | 3372 | if (cmd->convert_src == TRIG_EXT && cmd->scan_begin_src == TRIG_TIMER) |
27020ffe | 3373 | err |= -EINVAL; |
88b12a9a | 3374 | if (cmd->stop_src != TRIG_COUNT && |
0a85b6f0 | 3375 | cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_EXT) |
27020ffe | 3376 | err |= -EINVAL; |
88b12a9a FMH |
3377 | |
3378 | if (err) | |
3379 | return 2; | |
3380 | ||
dba2939c | 3381 | /* Step 3: check if arguments are trivially valid */ |
88b12a9a | 3382 | |
571cea09 | 3383 | err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0); |
020cb120 | 3384 | |
88b12a9a | 3385 | if (cmd->scan_begin_src == TRIG_TIMER) { |
571cea09 | 3386 | err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, |
52762ad1 | 3387 | board->ao_scan_speed); |
dba2939c HS |
3388 | if (get_ao_divisor(cmd->scan_begin_arg, cmd->flags) > |
3389 | max_counter_value) { | |
46ca84c4 IA |
3390 | cmd->scan_begin_arg = (max_counter_value + 2) * |
3391 | TIMER_BASE; | |
dba2939c | 3392 | err |= -EINVAL; |
88b12a9a FMH |
3393 | } |
3394 | } | |
3395 | ||
571cea09 IA |
3396 | err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1); |
3397 | err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg, | |
3398 | cmd->chanlist_len); | |
88b12a9a FMH |
3399 | |
3400 | if (err) | |
3401 | return 3; | |
3402 | ||
3403 | /* step 4: fix up any arguments */ | |
3404 | ||
3405 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
3406 | tmp_arg = cmd->scan_begin_arg; | |
46ca84c4 IA |
3407 | cmd->scan_begin_arg = get_divisor(cmd->scan_begin_arg, |
3408 | cmd->flags) * TIMER_BASE; | |
88b12a9a FMH |
3409 | if (tmp_arg != cmd->scan_begin_arg) |
3410 | err++; | |
3411 | } | |
3412 | ||
3413 | if (err) | |
3414 | return 4; | |
3415 | ||
e300e4fb HS |
3416 | /* Step 5: check channel list if it exists */ |
3417 | if (cmd->chanlist && cmd->chanlist_len > 0) | |
3418 | err |= cb_pcidas64_ao_check_chanlist(dev, s, cmd); | |
88b12a9a FMH |
3419 | |
3420 | if (err) | |
3421 | return 5; | |
3422 | ||
3423 | return 0; | |
3424 | } | |
3425 | ||
da91b269 | 3426 | static int ao_cancel(struct comedi_device *dev, struct comedi_subdevice *s) |
88b12a9a | 3427 | { |
681d335a HS |
3428 | struct pcidas64_private *devpriv = dev->private; |
3429 | ||
3430 | writew(0x0, devpriv->main_iobase + DAC_CONTROL0_REG); | |
88b12a9a FMH |
3431 | abort_dma(dev, 0); |
3432 | return 0; | |
3433 | } | |
3434 | ||
09d6dd74 | 3435 | static int dio_callback_4020(struct comedi_device *dev, |
da261e1d | 3436 | int dir, int port, int data, unsigned long iobase) |
88b12a9a | 3437 | { |
da261e1d | 3438 | struct pcidas64_private *devpriv = dev->private; |
43358ed0 | 3439 | |
88b12a9a | 3440 | if (dir) { |
da261e1d | 3441 | writew(data, devpriv->main_iobase + iobase + 2 * port); |
88b12a9a | 3442 | return 0; |
88b12a9a | 3443 | } |
da261e1d | 3444 | return readw(devpriv->main_iobase + iobase + 2 * port); |
88b12a9a FMH |
3445 | } |
3446 | ||
da91b269 | 3447 | static int di_rbits(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 3448 | struct comedi_insn *insn, unsigned int *data) |
88b12a9a | 3449 | { |
790c5541 | 3450 | unsigned int bits; |
88b12a9a | 3451 | |
9ebd1028 | 3452 | bits = readb(dev->mmio + DI_REG); |
88b12a9a FMH |
3453 | bits &= 0xf; |
3454 | data[1] = bits; | |
3455 | data[0] = 0; | |
3456 | ||
a2714e3e | 3457 | return insn->n; |
88b12a9a FMH |
3458 | } |
3459 | ||
97f4289a HS |
3460 | static int do_wbits(struct comedi_device *dev, |
3461 | struct comedi_subdevice *s, | |
3462 | struct comedi_insn *insn, | |
3463 | unsigned int *data) | |
88b12a9a | 3464 | { |
97f4289a | 3465 | if (comedi_dio_update_state(s, data)) |
9ebd1028 | 3466 | writeb(s->state, dev->mmio + DO_REG); |
88b12a9a FMH |
3467 | |
3468 | data[1] = s->state; | |
3469 | ||
a2714e3e | 3470 | return insn->n; |
88b12a9a FMH |
3471 | } |
3472 | ||
0a85b6f0 MT |
3473 | static int dio_60xx_config_insn(struct comedi_device *dev, |
3474 | struct comedi_subdevice *s, | |
ddf62f2c HS |
3475 | struct comedi_insn *insn, |
3476 | unsigned int *data) | |
88b12a9a | 3477 | { |
ddf62f2c | 3478 | int ret; |
88b12a9a | 3479 | |
ddf62f2c HS |
3480 | ret = comedi_dio_insn_config(dev, s, insn, data, 0); |
3481 | if (ret) | |
3482 | return ret; | |
88b12a9a | 3483 | |
9ebd1028 | 3484 | writeb(s->io_bits, dev->mmio + DIO_DIRECTION_60XX_REG); |
88b12a9a | 3485 | |
ddf62f2c | 3486 | return insn->n; |
88b12a9a FMH |
3487 | } |
3488 | ||
97f4289a HS |
3489 | static int dio_60xx_wbits(struct comedi_device *dev, |
3490 | struct comedi_subdevice *s, | |
3491 | struct comedi_insn *insn, | |
3492 | unsigned int *data) | |
88b12a9a | 3493 | { |
9ebd1028 HS |
3494 | if (comedi_dio_update_state(s, data)) |
3495 | writeb(s->state, dev->mmio + DIO_DATA_60XX_REG); | |
88b12a9a | 3496 | |
9ebd1028 | 3497 | data[1] = readb(dev->mmio + DIO_DATA_60XX_REG); |
88b12a9a | 3498 | |
a2714e3e | 3499 | return insn->n; |
88b12a9a FMH |
3500 | } |
3501 | ||
85c12b82 AD |
3502 | /* |
3503 | * pci-6025 8800 caldac: | |
012e642c IA |
3504 | * address 0 == dac channel 0 offset |
3505 | * address 1 == dac channel 0 gain | |
3506 | * address 2 == dac channel 1 offset | |
3507 | * address 3 == dac channel 1 gain | |
3508 | * address 4 == fine adc offset | |
3509 | * address 5 == coarse adc offset | |
3510 | * address 6 == coarse adc gain | |
3511 | * address 7 == fine adc gain | |
3512 | */ | |
85c12b82 AD |
3513 | /* |
3514 | * pci-6402/16 uses all 8 channels for dac: | |
012e642c IA |
3515 | * address 0 == dac channel 0 fine gain |
3516 | * address 1 == dac channel 0 coarse gain | |
3517 | * address 2 == dac channel 0 coarse offset | |
3518 | * address 3 == dac channel 1 coarse offset | |
3519 | * address 4 == dac channel 1 fine gain | |
3520 | * address 5 == dac channel 1 coarse gain | |
3521 | * address 6 == dac channel 0 fine offset | |
3522 | * address 7 == dac channel 1 fine offset | |
85c12b82 | 3523 | */ |
012e642c IA |
3524 | |
3525 | static int caldac_8800_write(struct comedi_device *dev, unsigned int address, | |
3526 | uint8_t value) | |
3527 | { | |
3528 | struct pcidas64_private *devpriv = dev->private; | |
3529 | static const int num_caldac_channels = 8; | |
3530 | static const int bitstream_length = 11; | |
3531 | unsigned int bitstream = ((address & 0x7) << 8) | value; | |
3532 | unsigned int bit, register_bits; | |
3533 | static const int caldac_8800_udelay = 1; | |
3534 | ||
3535 | if (address >= num_caldac_channels) { | |
e176d78c | 3536 | dev_err(dev->class_dev, "illegal caldac channel\n"); |
012e642c IA |
3537 | return -1; |
3538 | } | |
3539 | for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) { | |
3540 | register_bits = 0; | |
3541 | if (bitstream & bit) | |
3542 | register_bits |= SERIAL_DATA_IN_BIT; | |
3543 | udelay(caldac_8800_udelay); | |
3544 | writew(register_bits, devpriv->main_iobase + CALIBRATION_REG); | |
3545 | register_bits |= SERIAL_CLOCK_BIT; | |
3546 | udelay(caldac_8800_udelay); | |
3547 | writew(register_bits, devpriv->main_iobase + CALIBRATION_REG); | |
3548 | } | |
3549 | udelay(caldac_8800_udelay); | |
3550 | writew(SELECT_8800_BIT, devpriv->main_iobase + CALIBRATION_REG); | |
3551 | udelay(caldac_8800_udelay); | |
3552 | writew(0, devpriv->main_iobase + CALIBRATION_REG); | |
3553 | udelay(caldac_8800_udelay); | |
3554 | return 0; | |
3555 | } | |
3556 | ||
3557 | /* 4020 caldacs */ | |
3558 | static int caldac_i2c_write(struct comedi_device *dev, | |
3559 | unsigned int caldac_channel, unsigned int value) | |
3560 | { | |
3561 | uint8_t serial_bytes[3]; | |
3562 | uint8_t i2c_addr; | |
3563 | enum pointer_bits { | |
12f992ad | 3564 | /* manual has gain and offset bits switched */ |
012e642c IA |
3565 | OFFSET_0_2 = 0x1, |
3566 | GAIN_0_2 = 0x2, | |
3567 | OFFSET_1_3 = 0x4, | |
3568 | GAIN_1_3 = 0x8, | |
3569 | }; | |
3570 | enum data_bits { | |
3571 | NOT_CLEAR_REGISTERS = 0x20, | |
3572 | }; | |
3573 | ||
3574 | switch (caldac_channel) { | |
12f992ad | 3575 | case 0: /* chan 0 offset */ |
012e642c IA |
3576 | i2c_addr = CALDAC0_I2C_ADDR; |
3577 | serial_bytes[0] = OFFSET_0_2; | |
3578 | break; | |
12f992ad | 3579 | case 1: /* chan 1 offset */ |
012e642c IA |
3580 | i2c_addr = CALDAC0_I2C_ADDR; |
3581 | serial_bytes[0] = OFFSET_1_3; | |
3582 | break; | |
12f992ad | 3583 | case 2: /* chan 2 offset */ |
012e642c IA |
3584 | i2c_addr = CALDAC1_I2C_ADDR; |
3585 | serial_bytes[0] = OFFSET_0_2; | |
3586 | break; | |
12f992ad | 3587 | case 3: /* chan 3 offset */ |
012e642c IA |
3588 | i2c_addr = CALDAC1_I2C_ADDR; |
3589 | serial_bytes[0] = OFFSET_1_3; | |
3590 | break; | |
12f992ad | 3591 | case 4: /* chan 0 gain */ |
012e642c IA |
3592 | i2c_addr = CALDAC0_I2C_ADDR; |
3593 | serial_bytes[0] = GAIN_0_2; | |
3594 | break; | |
12f992ad | 3595 | case 5: /* chan 1 gain */ |
012e642c IA |
3596 | i2c_addr = CALDAC0_I2C_ADDR; |
3597 | serial_bytes[0] = GAIN_1_3; | |
3598 | break; | |
12f992ad | 3599 | case 6: /* chan 2 gain */ |
012e642c IA |
3600 | i2c_addr = CALDAC1_I2C_ADDR; |
3601 | serial_bytes[0] = GAIN_0_2; | |
3602 | break; | |
12f992ad | 3603 | case 7: /* chan 3 gain */ |
012e642c IA |
3604 | i2c_addr = CALDAC1_I2C_ADDR; |
3605 | serial_bytes[0] = GAIN_1_3; | |
3606 | break; | |
3607 | default: | |
e176d78c | 3608 | dev_err(dev->class_dev, "invalid caldac channel\n"); |
012e642c | 3609 | return -1; |
012e642c IA |
3610 | } |
3611 | serial_bytes[1] = NOT_CLEAR_REGISTERS | ((value >> 8) & 0xf); | |
3612 | serial_bytes[2] = value & 0xff; | |
3613 | i2c_write(dev, i2c_addr, serial_bytes, 3); | |
3614 | return 0; | |
3615 | } | |
3616 | ||
da91b269 | 3617 | static void caldac_write(struct comedi_device *dev, unsigned int channel, |
0a85b6f0 | 3618 | unsigned int value) |
88b12a9a | 3619 | { |
52762ad1 | 3620 | const struct pcidas64_board *board = dev->board_ptr; |
88b12a9a | 3621 | |
52762ad1 | 3622 | switch (board->layout) { |
88b12a9a FMH |
3623 | case LAYOUT_60XX: |
3624 | case LAYOUT_64XX: | |
3625 | caldac_8800_write(dev, channel, value); | |
3626 | break; | |
3627 | case LAYOUT_4020: | |
3628 | caldac_i2c_write(dev, channel, value); | |
3629 | break; | |
3630 | default: | |
3631 | break; | |
3632 | } | |
3633 | } | |
3634 | ||
5e2de5e7 HS |
3635 | static int cb_pcidas64_calib_insn_write(struct comedi_device *dev, |
3636 | struct comedi_subdevice *s, | |
3637 | struct comedi_insn *insn, | |
3638 | unsigned int *data) | |
88b12a9a | 3639 | { |
5e2de5e7 | 3640 | unsigned int chan = CR_CHAN(insn->chanspec); |
88b12a9a | 3641 | |
5e2de5e7 HS |
3642 | /* |
3643 | * Programming the calib device is slow. Only write the | |
3644 | * last data value if the value has changed. | |
3645 | */ | |
3646 | if (insn->n) { | |
3647 | unsigned int val = data[insn->n - 1]; | |
88b12a9a | 3648 | |
5e2de5e7 HS |
3649 | if (s->readback[chan] != val) { |
3650 | caldac_write(dev, chan, val); | |
3651 | s->readback[chan] = val; | |
3652 | } | |
3653 | } | |
88b12a9a | 3654 | |
5e2de5e7 | 3655 | return insn->n; |
88b12a9a FMH |
3656 | } |
3657 | ||
da91b269 | 3658 | static void ad8402_write(struct comedi_device *dev, unsigned int channel, |
0a85b6f0 | 3659 | unsigned int value) |
88b12a9a | 3660 | { |
681d335a | 3661 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3662 | static const int bitstream_length = 10; |
3663 | unsigned int bit, register_bits; | |
3664 | unsigned int bitstream = ((channel & 0x3) << 8) | (value & 0xff); | |
5f74ea14 | 3665 | static const int ad8402_udelay = 1; |
88b12a9a | 3666 | |
88b12a9a | 3667 | register_bits = SELECT_8402_64XX_BIT; |
5f74ea14 | 3668 | udelay(ad8402_udelay); |
681d335a | 3669 | writew(register_bits, devpriv->main_iobase + CALIBRATION_REG); |
88b12a9a FMH |
3670 | |
3671 | for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) { | |
3672 | if (bitstream & bit) | |
3673 | register_bits |= SERIAL_DATA_IN_BIT; | |
3674 | else | |
3675 | register_bits &= ~SERIAL_DATA_IN_BIT; | |
5f74ea14 | 3676 | udelay(ad8402_udelay); |
681d335a | 3677 | writew(register_bits, devpriv->main_iobase + CALIBRATION_REG); |
5f74ea14 | 3678 | udelay(ad8402_udelay); |
88b12a9a | 3679 | writew(register_bits | SERIAL_CLOCK_BIT, |
681d335a | 3680 | devpriv->main_iobase + CALIBRATION_REG); |
88b12a9a FMH |
3681 | } |
3682 | ||
5f74ea14 | 3683 | udelay(ad8402_udelay); |
681d335a | 3684 | writew(0, devpriv->main_iobase + CALIBRATION_REG); |
88b12a9a FMH |
3685 | } |
3686 | ||
3687 | /* for pci-das6402/16, channel 0 is analog input gain and channel 1 is offset */ | |
dc658fdc HS |
3688 | static int cb_pcidas64_ad8402_insn_write(struct comedi_device *dev, |
3689 | struct comedi_subdevice *s, | |
3690 | struct comedi_insn *insn, | |
3691 | unsigned int *data) | |
88b12a9a | 3692 | { |
dc658fdc | 3693 | unsigned int chan = CR_CHAN(insn->chanspec); |
88b12a9a | 3694 | |
dc658fdc HS |
3695 | /* |
3696 | * Programming the calib device is slow. Only write the | |
3697 | * last data value if the value has changed. | |
3698 | */ | |
3699 | if (insn->n) { | |
3700 | unsigned int val = data[insn->n - 1]; | |
88b12a9a | 3701 | |
dc658fdc HS |
3702 | if (s->readback[chan] != val) { |
3703 | ad8402_write(dev, chan, val); | |
3704 | s->readback[chan] = val; | |
3705 | } | |
3706 | } | |
88b12a9a | 3707 | |
dc658fdc | 3708 | return insn->n; |
88b12a9a FMH |
3709 | } |
3710 | ||
da91b269 | 3711 | static uint16_t read_eeprom(struct comedi_device *dev, uint8_t address) |
88b12a9a | 3712 | { |
681d335a | 3713 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3714 | static const int bitstream_length = 11; |
3715 | static const int read_command = 0x6; | |
3716 | unsigned int bitstream = (read_command << 8) | address; | |
3717 | unsigned int bit; | |
f31d0008 | 3718 | void __iomem * const plx_control_addr = |
c644a11a | 3719 | devpriv->plx9080_iobase + PLX_REG_CNTRL; |
88b12a9a FMH |
3720 | uint16_t value; |
3721 | static const int value_length = 16; | |
5f74ea14 | 3722 | static const int eeprom_udelay = 1; |
88b12a9a | 3723 | |
5f74ea14 | 3724 | udelay(eeprom_udelay); |
a3228bc8 | 3725 | devpriv->plx_control_bits &= ~PLX_CNTRL_EESK & ~PLX_CNTRL_EECS; |
12f992ad | 3726 | /* make sure we don't send anything to the i2c bus on 4020 */ |
a3228bc8 | 3727 | devpriv->plx_control_bits |= PLX_CNTRL_USERO; |
681d335a | 3728 | writel(devpriv->plx_control_bits, plx_control_addr); |
12f992ad | 3729 | /* activate serial eeprom */ |
5f74ea14 | 3730 | udelay(eeprom_udelay); |
a3228bc8 | 3731 | devpriv->plx_control_bits |= PLX_CNTRL_EECS; |
681d335a | 3732 | writel(devpriv->plx_control_bits, plx_control_addr); |
88b12a9a | 3733 | |
12f992ad | 3734 | /* write read command and desired memory address */ |
88b12a9a | 3735 | for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) { |
12f992ad | 3736 | /* set bit to be written */ |
5f74ea14 | 3737 | udelay(eeprom_udelay); |
88b12a9a | 3738 | if (bitstream & bit) |
a3228bc8 | 3739 | devpriv->plx_control_bits |= PLX_CNTRL_EEWB; |
88b12a9a | 3740 | else |
a3228bc8 | 3741 | devpriv->plx_control_bits &= ~PLX_CNTRL_EEWB; |
681d335a | 3742 | writel(devpriv->plx_control_bits, plx_control_addr); |
12f992ad | 3743 | /* clock in bit */ |
5f74ea14 | 3744 | udelay(eeprom_udelay); |
a3228bc8 | 3745 | devpriv->plx_control_bits |= PLX_CNTRL_EESK; |
681d335a | 3746 | writel(devpriv->plx_control_bits, plx_control_addr); |
5f74ea14 | 3747 | udelay(eeprom_udelay); |
a3228bc8 | 3748 | devpriv->plx_control_bits &= ~PLX_CNTRL_EESK; |
681d335a | 3749 | writel(devpriv->plx_control_bits, plx_control_addr); |
88b12a9a | 3750 | } |
12f992ad | 3751 | /* read back value from eeprom memory location */ |
88b12a9a FMH |
3752 | value = 0; |
3753 | for (bit = 1 << (value_length - 1); bit; bit >>= 1) { | |
12f992ad | 3754 | /* clock out bit */ |
5f74ea14 | 3755 | udelay(eeprom_udelay); |
a3228bc8 | 3756 | devpriv->plx_control_bits |= PLX_CNTRL_EESK; |
681d335a | 3757 | writel(devpriv->plx_control_bits, plx_control_addr); |
5f74ea14 | 3758 | udelay(eeprom_udelay); |
a3228bc8 | 3759 | devpriv->plx_control_bits &= ~PLX_CNTRL_EESK; |
681d335a | 3760 | writel(devpriv->plx_control_bits, plx_control_addr); |
5f74ea14 | 3761 | udelay(eeprom_udelay); |
a3228bc8 | 3762 | if (readl(plx_control_addr) & PLX_CNTRL_EERB) |
88b12a9a FMH |
3763 | value |= bit; |
3764 | } | |
3765 | ||
12f992ad | 3766 | /* deactivate eeprom serial input */ |
5f74ea14 | 3767 | udelay(eeprom_udelay); |
a3228bc8 | 3768 | devpriv->plx_control_bits &= ~PLX_CNTRL_EECS; |
681d335a | 3769 | writel(devpriv->plx_control_bits, plx_control_addr); |
88b12a9a FMH |
3770 | |
3771 | return value; | |
3772 | } | |
3773 | ||
0a85b6f0 MT |
3774 | static int eeprom_read_insn(struct comedi_device *dev, |
3775 | struct comedi_subdevice *s, | |
3776 | struct comedi_insn *insn, unsigned int *data) | |
88b12a9a FMH |
3777 | { |
3778 | data[0] = read_eeprom(dev, CR_CHAN(insn->chanspec)); | |
3779 | ||
3780 | return 1; | |
3781 | } | |
3782 | ||
12f992ad | 3783 | /* Allocate and initialize the subdevice structures. */ |
9c7a00f5 IA |
3784 | static int setup_subdevices(struct comedi_device *dev) |
3785 | { | |
52762ad1 | 3786 | const struct pcidas64_board *board = dev->board_ptr; |
9c7a00f5 IA |
3787 | struct pcidas64_private *devpriv = dev->private; |
3788 | struct comedi_subdevice *s; | |
9c7a00f5 IA |
3789 | int i; |
3790 | int ret; | |
3791 | ||
3792 | ret = comedi_alloc_subdevices(dev, 10); | |
3793 | if (ret) | |
3794 | return ret; | |
3795 | ||
3796 | s = &dev->subdevices[0]; | |
3797 | /* analog input subdevice */ | |
3798 | dev->read_subdev = s; | |
3799 | s->type = COMEDI_SUBD_AI; | |
3800 | s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DITHER | SDF_CMD_READ; | |
52762ad1 | 3801 | if (board->layout == LAYOUT_60XX) |
9c7a00f5 | 3802 | s->subdev_flags |= SDF_COMMON | SDF_DIFF; |
52762ad1 | 3803 | else if (board->layout == LAYOUT_64XX) |
9c7a00f5 IA |
3804 | s->subdev_flags |= SDF_DIFF; |
3805 | /* XXX Number of inputs in differential mode is ignored */ | |
52762ad1 | 3806 | s->n_chan = board->ai_se_chans; |
9c7a00f5 | 3807 | s->len_chanlist = 0x2000; |
52762ad1 HS |
3808 | s->maxdata = (1 << board->ai_bits) - 1; |
3809 | s->range_table = board->ai_range_table; | |
9c7a00f5 IA |
3810 | s->insn_read = ai_rinsn; |
3811 | s->insn_config = ai_config_insn; | |
3812 | s->do_cmd = ai_cmd; | |
3813 | s->do_cmdtest = ai_cmdtest; | |
3814 | s->cancel = ai_cancel; | |
52762ad1 | 3815 | if (board->layout == LAYOUT_4020) { |
9c7a00f5 | 3816 | uint8_t data; |
85c12b82 AD |
3817 | /* |
3818 | * set adc to read from inputs | |
3819 | * (not internal calibration sources) | |
3820 | */ | |
9c7a00f5 | 3821 | devpriv->i2c_cal_range_bits = adc_src_4020_bits(4); |
12f992ad | 3822 | /* set channels to +-5 volt input ranges */ |
9c7a00f5 IA |
3823 | for (i = 0; i < s->n_chan; i++) |
3824 | devpriv->i2c_cal_range_bits |= attenuate_bit(i); | |
3825 | data = devpriv->i2c_cal_range_bits; | |
3826 | i2c_write(dev, RANGE_CAL_I2C_ADDR, &data, sizeof(data)); | |
3827 | } | |
3828 | ||
3829 | /* analog output subdevice */ | |
3830 | s = &dev->subdevices[1]; | |
52762ad1 | 3831 | if (board->ao_nchan) { |
9c7a00f5 IA |
3832 | s->type = COMEDI_SUBD_AO; |
3833 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE | | |
3834 | SDF_GROUND | SDF_CMD_WRITE; | |
52762ad1 HS |
3835 | s->n_chan = board->ao_nchan; |
3836 | s->maxdata = (1 << board->ao_bits) - 1; | |
3837 | s->range_table = board->ao_range_table; | |
9c7a00f5 | 3838 | s->insn_write = ao_winsn; |
f88f75fe HS |
3839 | |
3840 | ret = comedi_alloc_subdev_readback(s); | |
3841 | if (ret) | |
3842 | return ret; | |
3843 | ||
52762ad1 | 3844 | if (ao_cmd_is_supported(board)) { |
9c7a00f5 IA |
3845 | dev->write_subdev = s; |
3846 | s->do_cmdtest = ao_cmdtest; | |
3847 | s->do_cmd = ao_cmd; | |
52762ad1 | 3848 | s->len_chanlist = board->ao_nchan; |
9c7a00f5 IA |
3849 | s->cancel = ao_cancel; |
3850 | } | |
3851 | } else { | |
3852 | s->type = COMEDI_SUBD_UNUSED; | |
3853 | } | |
3854 | ||
12f992ad | 3855 | /* digital input */ |
9c7a00f5 | 3856 | s = &dev->subdevices[2]; |
52762ad1 | 3857 | if (board->layout == LAYOUT_64XX) { |
9c7a00f5 IA |
3858 | s->type = COMEDI_SUBD_DI; |
3859 | s->subdev_flags = SDF_READABLE; | |
3860 | s->n_chan = 4; | |
3861 | s->maxdata = 1; | |
3862 | s->range_table = &range_digital; | |
3863 | s->insn_bits = di_rbits; | |
6ac986d0 | 3864 | } else { |
9c7a00f5 | 3865 | s->type = COMEDI_SUBD_UNUSED; |
6ac986d0 | 3866 | } |
9c7a00f5 | 3867 | |
12f992ad | 3868 | /* digital output */ |
52762ad1 | 3869 | if (board->layout == LAYOUT_64XX) { |
9c7a00f5 IA |
3870 | s = &dev->subdevices[3]; |
3871 | s->type = COMEDI_SUBD_DO; | |
453fd2b3 | 3872 | s->subdev_flags = SDF_WRITABLE; |
9c7a00f5 IA |
3873 | s->n_chan = 4; |
3874 | s->maxdata = 1; | |
3875 | s->range_table = &range_digital; | |
3876 | s->insn_bits = do_wbits; | |
6ac986d0 | 3877 | } else { |
9c7a00f5 | 3878 | s->type = COMEDI_SUBD_UNUSED; |
6ac986d0 | 3879 | } |
9c7a00f5 IA |
3880 | |
3881 | /* 8255 */ | |
3882 | s = &dev->subdevices[4]; | |
52762ad1 HS |
3883 | if (board->has_8255) { |
3884 | if (board->layout == LAYOUT_4020) { | |
e6439a45 | 3885 | ret = subdev_8255_init(dev, s, dio_callback_4020, |
da261e1d | 3886 | I8255_4020_REG); |
9c7a00f5 | 3887 | } else { |
5c19084b HS |
3888 | ret = subdev_8255_mm_init(dev, s, NULL, |
3889 | DIO_8255_OFFSET); | |
9c7a00f5 | 3890 | } |
e6439a45 HS |
3891 | if (ret) |
3892 | return ret; | |
3893 | } else { | |
9c7a00f5 | 3894 | s->type = COMEDI_SUBD_UNUSED; |
e6439a45 | 3895 | } |
9c7a00f5 | 3896 | |
12f992ad | 3897 | /* 8 channel dio for 60xx */ |
9c7a00f5 | 3898 | s = &dev->subdevices[5]; |
52762ad1 | 3899 | if (board->layout == LAYOUT_60XX) { |
9c7a00f5 IA |
3900 | s->type = COMEDI_SUBD_DIO; |
3901 | s->subdev_flags = SDF_WRITABLE | SDF_READABLE; | |
3902 | s->n_chan = 8; | |
3903 | s->maxdata = 1; | |
3904 | s->range_table = &range_digital; | |
3905 | s->insn_config = dio_60xx_config_insn; | |
3906 | s->insn_bits = dio_60xx_wbits; | |
6ac986d0 | 3907 | } else { |
9c7a00f5 | 3908 | s->type = COMEDI_SUBD_UNUSED; |
6ac986d0 | 3909 | } |
9c7a00f5 | 3910 | |
12f992ad | 3911 | /* caldac */ |
9c7a00f5 IA |
3912 | s = &dev->subdevices[6]; |
3913 | s->type = COMEDI_SUBD_CALIB; | |
3914 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; | |
3915 | s->n_chan = 8; | |
52762ad1 | 3916 | if (board->layout == LAYOUT_4020) |
9c7a00f5 IA |
3917 | s->maxdata = 0xfff; |
3918 | else | |
3919 | s->maxdata = 0xff; | |
5e2de5e7 | 3920 | s->insn_write = cb_pcidas64_calib_insn_write; |
37318bdb HS |
3921 | |
3922 | ret = comedi_alloc_subdev_readback(s); | |
3923 | if (ret) | |
3924 | return ret; | |
3925 | ||
3926 | for (i = 0; i < s->n_chan; i++) { | |
9c7a00f5 | 3927 | caldac_write(dev, i, s->maxdata / 2); |
37318bdb HS |
3928 | s->readback[i] = s->maxdata / 2; |
3929 | } | |
9c7a00f5 | 3930 | |
12f992ad | 3931 | /* 2 channel ad8402 potentiometer */ |
9c7a00f5 | 3932 | s = &dev->subdevices[7]; |
52762ad1 | 3933 | if (board->layout == LAYOUT_64XX) { |
9c7a00f5 IA |
3934 | s->type = COMEDI_SUBD_CALIB; |
3935 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; | |
3936 | s->n_chan = 2; | |
9c7a00f5 | 3937 | s->maxdata = 0xff; |
dc658fdc | 3938 | s->insn_write = cb_pcidas64_ad8402_insn_write; |
fe1184e4 HS |
3939 | |
3940 | ret = comedi_alloc_subdev_readback(s); | |
3941 | if (ret) | |
3942 | return ret; | |
3943 | ||
3944 | for (i = 0; i < s->n_chan; i++) { | |
9c7a00f5 | 3945 | ad8402_write(dev, i, s->maxdata / 2); |
fe1184e4 HS |
3946 | s->readback[i] = s->maxdata / 2; |
3947 | } | |
6ac986d0 | 3948 | } else { |
9c7a00f5 | 3949 | s->type = COMEDI_SUBD_UNUSED; |
6ac986d0 | 3950 | } |
9c7a00f5 IA |
3951 | |
3952 | /* serial EEPROM, if present */ | |
3953 | s = &dev->subdevices[8]; | |
a3228bc8 IA |
3954 | if (readl(devpriv->plx9080_iobase + PLX_REG_CNTRL) & |
3955 | PLX_CNTRL_EEPRESENT) { | |
9c7a00f5 IA |
3956 | s->type = COMEDI_SUBD_MEMORY; |
3957 | s->subdev_flags = SDF_READABLE | SDF_INTERNAL; | |
3958 | s->n_chan = 128; | |
3959 | s->maxdata = 0xffff; | |
3960 | s->insn_read = eeprom_read_insn; | |
6ac986d0 | 3961 | } else { |
9c7a00f5 | 3962 | s->type = COMEDI_SUBD_UNUSED; |
6ac986d0 | 3963 | } |
9c7a00f5 | 3964 | |
12f992ad | 3965 | /* user counter subd XXX */ |
9c7a00f5 IA |
3966 | s = &dev->subdevices[9]; |
3967 | s->type = COMEDI_SUBD_UNUSED; | |
3968 | ||
3969 | return 0; | |
3970 | } | |
3971 | ||
a690b7e5 | 3972 | static int auto_attach(struct comedi_device *dev, |
463740d4 | 3973 | unsigned long context) |
a299d881 | 3974 | { |
a299d881 | 3975 | struct pci_dev *pcidev = comedi_to_pci_dev(dev); |
52762ad1 | 3976 | const struct pcidas64_board *board = NULL; |
463740d4 | 3977 | struct pcidas64_private *devpriv; |
a299d881 IA |
3978 | uint32_t local_range, local_decode; |
3979 | int retval; | |
3980 | ||
463740d4 | 3981 | if (context < ARRAY_SIZE(pcidas64_boards)) |
52762ad1 HS |
3982 | board = &pcidas64_boards[context]; |
3983 | if (!board) | |
463740d4 | 3984 | return -ENODEV; |
52762ad1 | 3985 | dev->board_ptr = board; |
a299d881 | 3986 | |
0bdab509 | 3987 | devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv)); |
a299d881 IA |
3988 | if (!devpriv) |
3989 | return -ENOMEM; | |
a299d881 | 3990 | |
818f569f HS |
3991 | retval = comedi_pci_enable(dev); |
3992 | if (retval) | |
3993 | return retval; | |
a299d881 IA |
3994 | pci_set_master(pcidev); |
3995 | ||
3996 | /* Initialize dev->board_name */ | |
52762ad1 | 3997 | dev->board_name = board->name; |
a299d881 | 3998 | |
81d985a1 HS |
3999 | devpriv->main_phys_iobase = pci_resource_start(pcidev, 2); |
4000 | devpriv->dio_counter_phys_iobase = pci_resource_start(pcidev, 3); | |
a299d881 | 4001 | |
c71b2e52 HS |
4002 | devpriv->plx9080_iobase = pci_ioremap_bar(pcidev, 0); |
4003 | devpriv->main_iobase = pci_ioremap_bar(pcidev, 2); | |
9ebd1028 | 4004 | dev->mmio = pci_ioremap_bar(pcidev, 3); |
a299d881 | 4005 | |
9ebd1028 | 4006 | if (!devpriv->plx9080_iobase || !devpriv->main_iobase || !dev->mmio) { |
a299d881 IA |
4007 | dev_warn(dev->class_dev, "failed to remap io memory\n"); |
4008 | return -ENOMEM; | |
4009 | } | |
4010 | ||
12f992ad | 4011 | /* figure out what local addresses are */ |
c644a11a | 4012 | local_range = readl(devpriv->plx9080_iobase + PLX_REG_LAS0RR) & |
be13e14e | 4013 | PLX_LASRR_MEM_MASK; |
c644a11a | 4014 | local_decode = readl(devpriv->plx9080_iobase + PLX_REG_LAS0BA) & |
5eaa593d | 4015 | local_range & PLX_LASBA_MEM_MASK; |
a299d881 IA |
4016 | devpriv->local0_iobase = ((uint32_t)devpriv->main_phys_iobase & |
4017 | ~local_range) | local_decode; | |
c644a11a | 4018 | local_range = readl(devpriv->plx9080_iobase + PLX_REG_LAS1RR) & |
be13e14e | 4019 | PLX_LASRR_MEM_MASK; |
c644a11a | 4020 | local_decode = readl(devpriv->plx9080_iobase + PLX_REG_LAS1BA) & |
5eaa593d | 4021 | local_range & PLX_LASBA_MEM_MASK; |
a299d881 IA |
4022 | devpriv->local1_iobase = ((uint32_t)devpriv->dio_counter_phys_iobase & |
4023 | ~local_range) | local_decode; | |
4024 | ||
a299d881 IA |
4025 | retval = alloc_and_init_dma_members(dev); |
4026 | if (retval < 0) | |
4027 | return retval; | |
4028 | ||
4029 | devpriv->hw_revision = | |
4030 | hw_revision(dev, readw(devpriv->main_iobase + HW_STATUS_REG)); | |
4031 | dev_dbg(dev->class_dev, "stc hardware revision %i\n", | |
4032 | devpriv->hw_revision); | |
4033 | init_plx9080(dev); | |
4034 | init_stc_registers(dev); | |
71e06874 HS |
4035 | |
4036 | retval = request_irq(pcidev->irq, handle_interrupt, IRQF_SHARED, | |
4037 | dev->board_name, dev); | |
4038 | if (retval) { | |
a299d881 IA |
4039 | dev_dbg(dev->class_dev, "unable to allocate irq %u\n", |
4040 | pcidev->irq); | |
71e06874 | 4041 | return retval; |
a299d881 IA |
4042 | } |
4043 | dev->irq = pcidev->irq; | |
4044 | dev_dbg(dev->class_dev, "irq %u\n", dev->irq); | |
4045 | ||
4046 | retval = setup_subdevices(dev); | |
4047 | if (retval < 0) | |
4048 | return retval; | |
4049 | ||
4050 | return 0; | |
4051 | } | |
4052 | ||
4053 | static void detach(struct comedi_device *dev) | |
4054 | { | |
a299d881 | 4055 | struct pcidas64_private *devpriv = dev->private; |
a299d881 IA |
4056 | |
4057 | if (dev->irq) | |
4058 | free_irq(dev->irq, dev); | |
4059 | if (devpriv) { | |
f9804323 HS |
4060 | if (devpriv->plx9080_iobase) { |
4061 | disable_plx_interrupts(dev); | |
4062 | iounmap(devpriv->plx9080_iobase); | |
a299d881 | 4063 | } |
f9804323 HS |
4064 | if (devpriv->main_iobase) |
4065 | iounmap(devpriv->main_iobase); | |
4066 | if (dev->mmio) | |
4067 | iounmap(dev->mmio); | |
a299d881 | 4068 | } |
7f072f54 | 4069 | comedi_pci_disable(dev); |
f9804323 | 4070 | cb_pcidas64_free_dma(dev); |
a299d881 IA |
4071 | } |
4072 | ||
bdc7cc50 HS |
4073 | static struct comedi_driver cb_pcidas64_driver = { |
4074 | .driver_name = "cb_pcidas64", | |
4075 | .module = THIS_MODULE, | |
b91524ee | 4076 | .auto_attach = auto_attach, |
bdc7cc50 HS |
4077 | .detach = detach, |
4078 | }; | |
4079 | ||
a690b7e5 | 4080 | static int cb_pcidas64_pci_probe(struct pci_dev *dev, |
b8f4ac23 | 4081 | const struct pci_device_id *id) |
bdc7cc50 | 4082 | { |
b8f4ac23 HS |
4083 | return comedi_pci_auto_config(dev, &cb_pcidas64_driver, |
4084 | id->driver_data); | |
bdc7cc50 HS |
4085 | } |
4086 | ||
41e043fc | 4087 | static const struct pci_device_id cb_pcidas64_pci_table[] = { |
463740d4 HS |
4088 | { PCI_VDEVICE(CB, 0x001d), BOARD_PCIDAS6402_16 }, |
4089 | { PCI_VDEVICE(CB, 0x001e), BOARD_PCIDAS6402_12 }, | |
4090 | { PCI_VDEVICE(CB, 0x0035), BOARD_PCIDAS64_M1_16 }, | |
4091 | { PCI_VDEVICE(CB, 0x0036), BOARD_PCIDAS64_M2_16 }, | |
4092 | { PCI_VDEVICE(CB, 0x0037), BOARD_PCIDAS64_M3_16 }, | |
4093 | { PCI_VDEVICE(CB, 0x0052), BOARD_PCIDAS4020_12 }, | |
4094 | { PCI_VDEVICE(CB, 0x005d), BOARD_PCIDAS6023 }, | |
4095 | { PCI_VDEVICE(CB, 0x005e), BOARD_PCIDAS6025 }, | |
4096 | { PCI_VDEVICE(CB, 0x005f), BOARD_PCIDAS6030 }, | |
4097 | { PCI_VDEVICE(CB, 0x0060), BOARD_PCIDAS6031 }, | |
4098 | { PCI_VDEVICE(CB, 0x0061), BOARD_PCIDAS6032 }, | |
4099 | { PCI_VDEVICE(CB, 0x0062), BOARD_PCIDAS6033 }, | |
4100 | { PCI_VDEVICE(CB, 0x0063), BOARD_PCIDAS6034 }, | |
4101 | { PCI_VDEVICE(CB, 0x0064), BOARD_PCIDAS6035 }, | |
4102 | { PCI_VDEVICE(CB, 0x0065), BOARD_PCIDAS6040 }, | |
4103 | { PCI_VDEVICE(CB, 0x0066), BOARD_PCIDAS6052 }, | |
4104 | { PCI_VDEVICE(CB, 0x0067), BOARD_PCIDAS6070 }, | |
4105 | { PCI_VDEVICE(CB, 0x0068), BOARD_PCIDAS6071 }, | |
4106 | { PCI_VDEVICE(CB, 0x006f), BOARD_PCIDAS6036 }, | |
4107 | { PCI_VDEVICE(CB, 0x0078), BOARD_PCIDAS6013 }, | |
4108 | { PCI_VDEVICE(CB, 0x0079), BOARD_PCIDAS6014 }, | |
bdc7cc50 HS |
4109 | { 0 } |
4110 | }; | |
4111 | MODULE_DEVICE_TABLE(pci, cb_pcidas64_pci_table); | |
4112 | ||
4113 | static struct pci_driver cb_pcidas64_pci_driver = { | |
4114 | .name = "cb_pcidas64", | |
4115 | .id_table = cb_pcidas64_pci_table, | |
4116 | .probe = cb_pcidas64_pci_probe, | |
9901a4d7 | 4117 | .remove = comedi_pci_auto_unconfig, |
bdc7cc50 HS |
4118 | }; |
4119 | module_comedi_pci_driver(cb_pcidas64_driver, cb_pcidas64_pci_driver); | |
4120 | ||
90f703d3 AT |
4121 | MODULE_AUTHOR("Comedi http://www.comedi.org"); |
4122 | MODULE_DESCRIPTION("Comedi low-level driver"); | |
4123 | MODULE_LICENSE("GPL"); |