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73#include <linux/module.h>
74#include <linux/interrupt.h>
75
76#include "../comedi_pci.h"
77#include "amcc_s5933.h"
78
79
80
81
82#define APCI1032_DI_REG 0x00
83#define APCI1032_MODE1_REG 0x04
84#define APCI1032_MODE2_REG 0x08
85#define APCI1032_STATUS_REG 0x0c
86#define APCI1032_CTRL_REG 0x10
87#define APCI1032_CTRL_INT_MODE(x) (((x) & 0x1) << 1)
88#define APCI1032_CTRL_INT_OR APCI1032_CTRL_INT_MODE(0)
89#define APCI1032_CTRL_INT_AND APCI1032_CTRL_INT_MODE(1)
90#define APCI1032_CTRL_INT_ENA BIT(2)
91
92struct apci1032_private {
93 unsigned long amcc_iobase;
94 unsigned int mode1;
95 unsigned int mode2;
96 unsigned int ctrl;
97};
98
99static int apci1032_reset(struct comedi_device *dev)
100{
101
102 outl(0x0, dev->iobase + APCI1032_CTRL_REG);
103
104 inl(dev->iobase + APCI1032_STATUS_REG);
105
106 outl(0x0, dev->iobase + APCI1032_MODE1_REG);
107 outl(0x0, dev->iobase + APCI1032_MODE2_REG);
108
109 return 0;
110}
111
112static int apci1032_cos_insn_config(struct comedi_device *dev,
113 struct comedi_subdevice *s,
114 struct comedi_insn *insn,
115 unsigned int *data)
116{
117 struct apci1032_private *devpriv = dev->private;
118 unsigned int shift, oldmask;
119
120 switch (data[0]) {
121 case INSN_CONFIG_DIGITAL_TRIG:
122 if (data[1] != 0)
123 return -EINVAL;
124 shift = data[3];
125 oldmask = (1U << shift) - 1;
126 switch (data[2]) {
127 case COMEDI_DIGITAL_TRIG_DISABLE:
128 devpriv->ctrl = 0;
129 devpriv->mode1 = 0;
130 devpriv->mode2 = 0;
131 apci1032_reset(dev);
132 break;
133 case COMEDI_DIGITAL_TRIG_ENABLE_EDGES:
134 if (devpriv->ctrl != (APCI1032_CTRL_INT_ENA |
135 APCI1032_CTRL_INT_OR)) {
136
137 devpriv->ctrl = APCI1032_CTRL_INT_ENA |
138 APCI1032_CTRL_INT_OR;
139
140 devpriv->mode1 = 0;
141 devpriv->mode2 = 0;
142 } else {
143
144 devpriv->mode1 &= oldmask;
145 devpriv->mode2 &= oldmask;
146 }
147
148 devpriv->mode1 |= data[4] << shift;
149 devpriv->mode2 |= data[5] << shift;
150 break;
151 case COMEDI_DIGITAL_TRIG_ENABLE_LEVELS:
152 if (devpriv->ctrl != (APCI1032_CTRL_INT_ENA |
153 APCI1032_CTRL_INT_AND)) {
154
155 devpriv->ctrl = APCI1032_CTRL_INT_ENA |
156 APCI1032_CTRL_INT_AND;
157
158 devpriv->mode1 = 0;
159 devpriv->mode2 = 0;
160 } else {
161
162 devpriv->mode1 &= oldmask;
163 devpriv->mode2 &= oldmask;
164 }
165
166 devpriv->mode1 |= data[4] << shift;
167 devpriv->mode2 |= data[5] << shift;
168 break;
169 default:
170 return -EINVAL;
171 }
172 break;
173 default:
174 return -EINVAL;
175 }
176
177 return insn->n;
178}
179
180static int apci1032_cos_insn_bits(struct comedi_device *dev,
181 struct comedi_subdevice *s,
182 struct comedi_insn *insn,
183 unsigned int *data)
184{
185 data[1] = s->state;
186
187 return 0;
188}
189
190static int apci1032_cos_cmdtest(struct comedi_device *dev,
191 struct comedi_subdevice *s,
192 struct comedi_cmd *cmd)
193{
194 int err = 0;
195
196
197
198 err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
199 err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
200 err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
201 err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
202 err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
203
204 if (err)
205 return 1;
206
207
208
209
210
211
212 err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
213 err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
214 err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
215 err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
216 cmd->chanlist_len);
217 err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
218
219 if (err)
220 return 3;
221
222
223
224
225
226 return 0;
227}
228
229
230
231
232
233
234static int apci1032_cos_cmd(struct comedi_device *dev,
235 struct comedi_subdevice *s)
236{
237 struct apci1032_private *devpriv = dev->private;
238
239 if (!devpriv->ctrl) {
240 dev_warn(dev->class_dev,
241 "Interrupts disabled due to mode configuration!\n");
242 return -EINVAL;
243 }
244
245 outl(devpriv->mode1, dev->iobase + APCI1032_MODE1_REG);
246 outl(devpriv->mode2, dev->iobase + APCI1032_MODE2_REG);
247 outl(devpriv->ctrl, dev->iobase + APCI1032_CTRL_REG);
248
249 return 0;
250}
251
252static int apci1032_cos_cancel(struct comedi_device *dev,
253 struct comedi_subdevice *s)
254{
255 return apci1032_reset(dev);
256}
257
258static irqreturn_t apci1032_interrupt(int irq, void *d)
259{
260 struct comedi_device *dev = d;
261 struct apci1032_private *devpriv = dev->private;
262 struct comedi_subdevice *s = dev->read_subdev;
263 unsigned int ctrl;
264
265
266 if ((inl(devpriv->amcc_iobase + AMCC_OP_REG_INTCSR) &
267 INTCSR_INTR_ASSERTED) == 0)
268 return IRQ_NONE;
269
270
271 ctrl = inl(dev->iobase + APCI1032_CTRL_REG);
272 if ((ctrl & APCI1032_CTRL_INT_ENA) == 0)
273 return IRQ_HANDLED;
274
275
276 outl(ctrl & ~APCI1032_CTRL_INT_ENA, dev->iobase + APCI1032_CTRL_REG);
277
278 s->state = inl(dev->iobase + APCI1032_STATUS_REG) & 0xffff;
279 comedi_buf_write_samples(s, &s->state, 1);
280 comedi_handle_events(dev, s);
281
282
283 outl(ctrl, dev->iobase + APCI1032_CTRL_REG);
284
285 return IRQ_HANDLED;
286}
287
288static int apci1032_di_insn_bits(struct comedi_device *dev,
289 struct comedi_subdevice *s,
290 struct comedi_insn *insn,
291 unsigned int *data)
292{
293 data[1] = inl(dev->iobase + APCI1032_DI_REG);
294
295 return insn->n;
296}
297
298static int apci1032_auto_attach(struct comedi_device *dev,
299 unsigned long context_unused)
300{
301 struct pci_dev *pcidev = comedi_to_pci_dev(dev);
302 struct apci1032_private *devpriv;
303 struct comedi_subdevice *s;
304 int ret;
305
306 devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
307 if (!devpriv)
308 return -ENOMEM;
309
310 ret = comedi_pci_enable(dev);
311 if (ret)
312 return ret;
313
314 devpriv->amcc_iobase = pci_resource_start(pcidev, 0);
315 dev->iobase = pci_resource_start(pcidev, 1);
316 apci1032_reset(dev);
317 if (pcidev->irq > 0) {
318 ret = request_irq(pcidev->irq, apci1032_interrupt, IRQF_SHARED,
319 dev->board_name, dev);
320 if (ret == 0)
321 dev->irq = pcidev->irq;
322 }
323
324 ret = comedi_alloc_subdevices(dev, 2);
325 if (ret)
326 return ret;
327
328
329 s = &dev->subdevices[0];
330 s->type = COMEDI_SUBD_DI;
331 s->subdev_flags = SDF_READABLE;
332 s->n_chan = 32;
333 s->maxdata = 1;
334 s->range_table = &range_digital;
335 s->insn_bits = apci1032_di_insn_bits;
336
337
338 s = &dev->subdevices[1];
339 if (dev->irq) {
340 dev->read_subdev = s;
341 s->type = COMEDI_SUBD_DI;
342 s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
343 s->n_chan = 1;
344 s->maxdata = 1;
345 s->range_table = &range_digital;
346 s->insn_config = apci1032_cos_insn_config;
347 s->insn_bits = apci1032_cos_insn_bits;
348 s->len_chanlist = 1;
349 s->do_cmdtest = apci1032_cos_cmdtest;
350 s->do_cmd = apci1032_cos_cmd;
351 s->cancel = apci1032_cos_cancel;
352 } else {
353 s->type = COMEDI_SUBD_UNUSED;
354 }
355
356 return 0;
357}
358
359static void apci1032_detach(struct comedi_device *dev)
360{
361 if (dev->iobase)
362 apci1032_reset(dev);
363 comedi_pci_detach(dev);
364}
365
366static struct comedi_driver apci1032_driver = {
367 .driver_name = "addi_apci_1032",
368 .module = THIS_MODULE,
369 .auto_attach = apci1032_auto_attach,
370 .detach = apci1032_detach,
371};
372
373static int apci1032_pci_probe(struct pci_dev *dev,
374 const struct pci_device_id *id)
375{
376 return comedi_pci_auto_config(dev, &apci1032_driver, id->driver_data);
377}
378
379static const struct pci_device_id apci1032_pci_table[] = {
380 { PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x1003) },
381 { 0 }
382};
383MODULE_DEVICE_TABLE(pci, apci1032_pci_table);
384
385static struct pci_driver apci1032_pci_driver = {
386 .name = "addi_apci_1032",
387 .id_table = apci1032_pci_table,
388 .probe = apci1032_pci_probe,
389 .remove = comedi_pci_auto_unconfig,
390};
391module_comedi_pci_driver(apci1032_driver, apci1032_pci_driver);
392
393MODULE_AUTHOR("Comedi http://www.comedi.org");
394MODULE_DESCRIPTION("ADDI-DATA APCI-1032, 32 channel DI boards");
395MODULE_LICENSE("GPL");
396