adl_pci8164.c revision ba7834b3f335f6bdef95e416d72245f6687cc660
1/* 2 comedi/drivers/adl_pci8164.c 3 4 Hardware comedi driver fot PCI-8164 Adlink card 5 Copyright (C) 2004 Michel Lachine <mike@mikelachaine.ca> 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 21*/ 22/* 23Driver: adl_pci8164 24Description: Driver for the Adlink PCI-8164 4 Axes Motion Control board 25Devices: [ADLink] PCI-8164 (adl_pci8164) 26Author: Michel Lachaine <mike@mikelachaine.ca> 27Status: experimental 28Updated: Mon, 14 Apr 2008 15:10:32 +0100 29 30Configuration Options: 31 [0] - PCI bus of device (optional) 32 [1] - PCI slot of device (optional) 33 If bus/slot is not specified, the first supported 34 PCI device found will be used. 35*/ 36 37#include "../comedidev.h" 38#include <linux/delay.h> 39#include "comedi_fc.h" 40#include "comedi_pci.h" 41#include "8253.h" 42 43#define PCI8164_AXIS_X 0x00 44#define PCI8164_AXIS_Y 0x08 45#define PCI8164_AXIS_Z 0x10 46#define PCI8164_AXIS_U 0x18 47 48#define PCI8164_MSTS 0x00 49#define PCI8164_SSTS 0x02 50#define PCI8164_BUF0 0x04 51#define PCI8164_BUF1 0x06 52 53#define PCI8164_CMD 0x00 54#define PCI8164_OTP 0x02 55 56#define PCI_DEVICE_ID_PCI8164 0x8164 57 58static DEFINE_PCI_DEVICE_TABLE(adl_pci8164_pci_table) = { 59 {PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI8164, PCI_ANY_ID, PCI_ANY_ID, 0, 60 0, 0}, 61 {0} 62}; 63 64MODULE_DEVICE_TABLE(pci, adl_pci8164_pci_table); 65 66struct adl_pci8164_private { 67 int data; 68 struct pci_dev *pci_dev; 69}; 70 71#define devpriv ((struct adl_pci8164_private *)dev->private) 72 73static int adl_pci8164_attach(struct comedi_device *dev, struct comedi_devconfig *it); 74static int adl_pci8164_detach(struct comedi_device *dev); 75static struct comedi_driver driver_adl_pci8164 = { 76 .driver_name = "adl_pci8164", 77 .module = THIS_MODULE, 78 .attach = adl_pci8164_attach, 79 .detach = adl_pci8164_detach, 80}; 81 82static int adl_pci8164_insn_read_msts(struct comedi_device *dev, struct comedi_subdevice *s, 83 struct comedi_insn *insn, unsigned int *data); 84 85static int adl_pci8164_insn_read_ssts(struct comedi_device *dev, struct comedi_subdevice *s, 86 struct comedi_insn *insn, unsigned int *data); 87 88static int adl_pci8164_insn_read_buf0(struct comedi_device *dev, struct comedi_subdevice *s, 89 struct comedi_insn *insn, unsigned int *data); 90 91static int adl_pci8164_insn_read_buf1(struct comedi_device *dev, struct comedi_subdevice *s, 92 struct comedi_insn *insn, unsigned int *data); 93 94static int adl_pci8164_insn_write_cmd(struct comedi_device *dev, struct comedi_subdevice *s, 95 struct comedi_insn *insn, unsigned int *data); 96 97static int adl_pci8164_insn_write_otp(struct comedi_device *dev, struct comedi_subdevice *s, 98 struct comedi_insn *insn, unsigned int *data); 99 100static int adl_pci8164_insn_write_buf0(struct comedi_device *dev, 101 struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data); 102 103static int adl_pci8164_insn_write_buf1(struct comedi_device *dev, 104 struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data); 105 106static int adl_pci8164_attach(struct comedi_device *dev, struct comedi_devconfig *it) 107{ 108 struct pci_dev *pcidev; 109 struct comedi_subdevice *s; 110 int bus, slot; 111 112 printk("comedi: attempt to attach...\n"); 113 printk("comedi%d: adl_pci8164\n", dev->minor); 114 115 dev->board_name = "pci8164"; 116 bus = it->options[0]; 117 slot = it->options[1]; 118 119 if (alloc_private(dev, sizeof(struct adl_pci8164_private)) < 0) 120 return -ENOMEM; 121 122 if (alloc_subdevices(dev, 4) < 0) 123 return -ENOMEM; 124 125 for (pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL); 126 pcidev != NULL; 127 pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pcidev)) { 128 129 if (pcidev->vendor == PCI_VENDOR_ID_ADLINK && 130 pcidev->device == PCI_DEVICE_ID_PCI8164) { 131 if (bus || slot) { 132 /* requested particular bus/slot */ 133 if (pcidev->bus->number != bus 134 || PCI_SLOT(pcidev->devfn) != slot) { 135 continue; 136 } 137 } 138 devpriv->pci_dev = pcidev; 139 if (comedi_pci_enable(pcidev, "adl_pci8164") < 0) { 140 printk("comedi%d: Failed to enable PCI device and request regions\n", dev->minor); 141 return -EIO; 142 } 143 dev->iobase = pci_resource_start(pcidev, 2); 144 printk("comedi: base addr %4lx\n", dev->iobase); 145 146 s = dev->subdevices + 0; 147 s->type = COMEDI_SUBD_PROC; 148 s->subdev_flags = SDF_READABLE | SDF_WRITABLE; 149 s->n_chan = 4; 150 s->maxdata = 0xffff; 151 s->len_chanlist = 4; 152 /* s->range_table = &range_axis; */ 153 s->insn_read = adl_pci8164_insn_read_msts; 154 s->insn_write = adl_pci8164_insn_write_cmd; 155 156 s = dev->subdevices + 1; 157 s->type = COMEDI_SUBD_PROC; 158 s->subdev_flags = SDF_READABLE | SDF_WRITABLE; 159 s->n_chan = 4; 160 s->maxdata = 0xffff; 161 s->len_chanlist = 4; 162 /* s->range_table = &range_axis; */ 163 s->insn_read = adl_pci8164_insn_read_ssts; 164 s->insn_write = adl_pci8164_insn_write_otp; 165 166 s = dev->subdevices + 2; 167 s->type = COMEDI_SUBD_PROC; 168 s->subdev_flags = SDF_READABLE | SDF_WRITABLE; 169 s->n_chan = 4; 170 s->maxdata = 0xffff; 171 s->len_chanlist = 4; 172 /* s->range_table = &range_axis; */ 173 s->insn_read = adl_pci8164_insn_read_buf0; 174 s->insn_write = adl_pci8164_insn_write_buf0; 175 176 s = dev->subdevices + 3; 177 s->type = COMEDI_SUBD_PROC; 178 s->subdev_flags = SDF_READABLE | SDF_WRITABLE; 179 s->n_chan = 4; 180 s->maxdata = 0xffff; 181 s->len_chanlist = 4; 182 /* s->range_table = &range_axis; */ 183 s->insn_read = adl_pci8164_insn_read_buf1; 184 s->insn_write = adl_pci8164_insn_write_buf1; 185 186 printk("comedi: attached\n"); 187 188 return 1; 189 } 190 } 191 192 printk("comedi%d: no supported board found! (req. bus/slot : %d/%d)\n", 193 dev->minor, bus, slot); 194 return -EIO; 195} 196 197static int adl_pci8164_detach(struct comedi_device *dev) 198{ 199 printk("comedi%d: pci8164: remove\n", dev->minor); 200 201 if (devpriv && devpriv->pci_dev) { 202 if (dev->iobase) { 203 comedi_pci_disable(devpriv->pci_dev); 204 } 205 pci_dev_put(devpriv->pci_dev); 206 } 207 208 return 0; 209} 210 211/* 212 all the read commands are the same except for the addition a constant 213 * const to the data for inw() 214 */ 215static void adl_pci8164_insn_read(struct comedi_device *dev, 216 struct comedi_subdevice *s, 217 struct comedi_insn *insn, 218 unsigned int *data, 219 char *action, 220 unsigned short offset) 221{ 222 int axis, axis_reg; 223 char *axisname; 224 225 axis = CR_CHAN(insn->chanspec); 226 227 switch (axis) { 228 case 0: 229 axis_reg = PCI8164_AXIS_X; 230 axisname = "X"; 231 break; 232 case 1: 233 axis_reg = PCI8164_AXIS_Y; 234 axisname = "Y"; 235 break; 236 case 2: 237 axis_reg = PCI8164_AXIS_Z; 238 axisname = "Z"; 239 break; 240 case 3: 241 axis_reg = PCI8164_AXIS_U; 242 axisname = "U"; 243 break; 244 default: 245 axis_reg = PCI8164_AXIS_X; 246 axisname = "X"; 247 } 248 249 data[0] = inw(dev->iobase + axis_reg + offset); 250 printk("comedi: pci8164 %s read -> %04X:%04X on axis %s\n", action, data[0], 251 data[1], axisname); 252} 253 254static int adl_pci8164_insn_read_msts(struct comedi_device *dev, 255 struct comedi_subdevice *s, 256 struct comedi_insn *insn, 257 unsigned int *data) 258{ 259 adl_pci8164_insn_read(dev, s, insn, data, "MSTS", PCI8164_MSTS); 260 return 2; 261} 262 263static int adl_pci8164_insn_read_ssts(struct comedi_device *dev, struct comedi_subdevice *s, 264 struct comedi_insn *insn, unsigned int *data) 265{ 266 adl_pci8164_insn_read(dev, s, insn, data, "SSTS", PCI8164_SSTS); 267 return 2; 268} 269 270static int adl_pci8164_insn_read_buf0(struct comedi_device *dev, struct comedi_subdevice *s, 271 struct comedi_insn *insn, unsigned int *data) 272{ 273 adl_pci8164_insn_read(dev, s, insn, data, "BUF0", PCI8164_BUF0); 274 return 2; 275} 276 277static int adl_pci8164_insn_read_buf1(struct comedi_device *dev, struct comedi_subdevice *s, 278 struct comedi_insn *insn, unsigned int *data) 279{ 280 adl_pci8164_insn_read(dev, s, insn, data, "BUF1", PCI8164_BUF1); 281 return 2; 282} 283 284/* 285 all the write commands are the same except for the addition a constant 286 * const to the data for outw() 287 */ 288static void adl_pci8164_insn_out(struct comedi_device *dev, 289 struct comedi_subdevice *s, 290 struct comedi_insn *insn, 291 unsigned int *data, 292 char *action, 293 unsigned short offset) 294{ 295 unsigned int axis, axis_reg; 296 297 char *axisname; 298 299 axis = CR_CHAN(insn->chanspec); 300 301 switch (axis) { 302 case 0: 303 axis_reg = PCI8164_AXIS_X; 304 axisname = "X"; 305 break; 306 case 1: 307 axis_reg = PCI8164_AXIS_Y; 308 axisname = "Y"; 309 break; 310 case 2: 311 axis_reg = PCI8164_AXIS_Z; 312 axisname = "Z"; 313 break; 314 case 3: 315 axis_reg = PCI8164_AXIS_U; 316 axisname = "U"; 317 break; 318 default: 319 axis_reg = PCI8164_AXIS_X; 320 axisname = "X"; 321 } 322 323 outw(data[0], dev->iobase + axis_reg + offset); 324 325 printk("comedi: pci8164 %s write -> %04X:%04X on axis %s\n", action, 326 data[0], data[1], axisname); 327 328} 329 330 331static int adl_pci8164_insn_write_cmd(struct comedi_device *dev, struct comedi_subdevice *s, 332 struct comedi_insn *insn, unsigned int *data) 333{ 334 adl_pci8164_insn_out(dev, s, insn, data, "CMD", PCI8164_CMD); 335 return 2; 336} 337 338static int adl_pci8164_insn_write_otp(struct comedi_device *dev, struct comedi_subdevice *s, 339 struct comedi_insn *insn, unsigned int *data) 340{ 341 adl_pci8164_insn_out(dev, s, insn, data, "OTP", PCI8164_OTP); 342 return 2; 343} 344 345static int adl_pci8164_insn_write_buf0(struct comedi_device *dev, 346 struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) 347{ 348 adl_pci8164_insn_out(dev, s, insn, data, "BUF0", PCI8164_BUF0); 349 return 2; 350} 351 352static int adl_pci8164_insn_write_buf1(struct comedi_device *dev, 353 struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) 354{ 355 adl_pci8164_insn_out(dev, s, insn, data, "BUF1", PCI8164_BUF1); 356 return 2; 357} 358 359COMEDI_PCI_INITCLEANUP(driver_adl_pci8164, adl_pci8164_pci_table); 360