1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | /* |
3 | * addi_apci_1516.c |
4 | * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. |
5 | * Project manager: Eric Stolz |
6 | * |
7 | * ADDI-DATA GmbH |
8 | * Dieselstrasse 3 |
9 | * D-77833 Ottersweier |
10 | * Tel: +19(0)7223/9493-0 |
11 | * Fax: +49(0)7223/9493-92 |
12 | * http://www.addi-data.com |
13 | * info@addi-data.com |
14 | */ |
15 | |
16 | #include <linux/module.h> |
17 | #include <linux/comedi/comedi_pci.h> |
18 | |
19 | #include "addi_watchdog.h" |
20 | |
21 | /* |
22 | * PCI bar 1 I/O Register map - Digital input/output |
23 | */ |
24 | #define APCI1516_DI_REG 0x00 |
25 | #define APCI1516_DO_REG 0x04 |
26 | |
27 | /* |
28 | * PCI bar 2 I/O Register map - Watchdog (APCI-1516 and APCI-2016) |
29 | */ |
30 | #define APCI1516_WDOG_REG 0x00 |
31 | |
32 | enum apci1516_boardid { |
33 | BOARD_APCI1016, |
34 | BOARD_APCI1516, |
35 | BOARD_APCI2016, |
36 | }; |
37 | |
38 | struct apci1516_boardinfo { |
39 | const char *name; |
40 | int di_nchan; |
41 | int do_nchan; |
42 | int has_wdog; |
43 | }; |
44 | |
45 | static const struct apci1516_boardinfo apci1516_boardtypes[] = { |
46 | [BOARD_APCI1016] = { |
47 | .name = "apci1016" , |
48 | .di_nchan = 16, |
49 | }, |
50 | [BOARD_APCI1516] = { |
51 | .name = "apci1516" , |
52 | .di_nchan = 8, |
53 | .do_nchan = 8, |
54 | .has_wdog = 1, |
55 | }, |
56 | [BOARD_APCI2016] = { |
57 | .name = "apci2016" , |
58 | .do_nchan = 16, |
59 | .has_wdog = 1, |
60 | }, |
61 | }; |
62 | |
63 | struct apci1516_private { |
64 | unsigned long wdog_iobase; |
65 | }; |
66 | |
67 | static int apci1516_di_insn_bits(struct comedi_device *dev, |
68 | struct comedi_subdevice *s, |
69 | struct comedi_insn *insn, |
70 | unsigned int *data) |
71 | { |
72 | data[1] = inw(port: dev->iobase + APCI1516_DI_REG); |
73 | |
74 | return insn->n; |
75 | } |
76 | |
77 | static int apci1516_do_insn_bits(struct comedi_device *dev, |
78 | struct comedi_subdevice *s, |
79 | struct comedi_insn *insn, |
80 | unsigned int *data) |
81 | { |
82 | s->state = inw(port: dev->iobase + APCI1516_DO_REG); |
83 | |
84 | if (comedi_dio_update_state(s, data)) |
85 | outw(value: s->state, port: dev->iobase + APCI1516_DO_REG); |
86 | |
87 | data[1] = s->state; |
88 | |
89 | return insn->n; |
90 | } |
91 | |
92 | static int apci1516_reset(struct comedi_device *dev) |
93 | { |
94 | const struct apci1516_boardinfo *board = dev->board_ptr; |
95 | struct apci1516_private *devpriv = dev->private; |
96 | |
97 | if (!board->has_wdog) |
98 | return 0; |
99 | |
100 | outw(value: 0x0, port: dev->iobase + APCI1516_DO_REG); |
101 | |
102 | addi_watchdog_reset(iobase: devpriv->wdog_iobase); |
103 | |
104 | return 0; |
105 | } |
106 | |
107 | static int apci1516_auto_attach(struct comedi_device *dev, |
108 | unsigned long context) |
109 | { |
110 | struct pci_dev *pcidev = comedi_to_pci_dev(dev); |
111 | const struct apci1516_boardinfo *board = NULL; |
112 | struct apci1516_private *devpriv; |
113 | struct comedi_subdevice *s; |
114 | int ret; |
115 | |
116 | if (context < ARRAY_SIZE(apci1516_boardtypes)) |
117 | board = &apci1516_boardtypes[context]; |
118 | if (!board) |
119 | return -ENODEV; |
120 | dev->board_ptr = board; |
121 | dev->board_name = board->name; |
122 | |
123 | devpriv = comedi_alloc_devpriv(dev, size: sizeof(*devpriv)); |
124 | if (!devpriv) |
125 | return -ENOMEM; |
126 | |
127 | ret = comedi_pci_enable(dev); |
128 | if (ret) |
129 | return ret; |
130 | |
131 | dev->iobase = pci_resource_start(pcidev, 1); |
132 | devpriv->wdog_iobase = pci_resource_start(pcidev, 2); |
133 | |
134 | ret = comedi_alloc_subdevices(dev, num_subdevices: 3); |
135 | if (ret) |
136 | return ret; |
137 | |
138 | /* Initialize the digital input subdevice */ |
139 | s = &dev->subdevices[0]; |
140 | if (board->di_nchan) { |
141 | s->type = COMEDI_SUBD_DI; |
142 | s->subdev_flags = SDF_READABLE; |
143 | s->n_chan = board->di_nchan; |
144 | s->maxdata = 1; |
145 | s->range_table = &range_digital; |
146 | s->insn_bits = apci1516_di_insn_bits; |
147 | } else { |
148 | s->type = COMEDI_SUBD_UNUSED; |
149 | } |
150 | |
151 | /* Initialize the digital output subdevice */ |
152 | s = &dev->subdevices[1]; |
153 | if (board->do_nchan) { |
154 | s->type = COMEDI_SUBD_DO; |
155 | s->subdev_flags = SDF_WRITABLE; |
156 | s->n_chan = board->do_nchan; |
157 | s->maxdata = 1; |
158 | s->range_table = &range_digital; |
159 | s->insn_bits = apci1516_do_insn_bits; |
160 | } else { |
161 | s->type = COMEDI_SUBD_UNUSED; |
162 | } |
163 | |
164 | /* Initialize the watchdog subdevice */ |
165 | s = &dev->subdevices[2]; |
166 | if (board->has_wdog) { |
167 | ret = addi_watchdog_init(s, iobase: devpriv->wdog_iobase); |
168 | if (ret) |
169 | return ret; |
170 | } else { |
171 | s->type = COMEDI_SUBD_UNUSED; |
172 | } |
173 | |
174 | apci1516_reset(dev); |
175 | return 0; |
176 | } |
177 | |
178 | static void apci1516_detach(struct comedi_device *dev) |
179 | { |
180 | if (dev->iobase) |
181 | apci1516_reset(dev); |
182 | comedi_pci_detach(dev); |
183 | } |
184 | |
185 | static struct comedi_driver apci1516_driver = { |
186 | .driver_name = "addi_apci_1516" , |
187 | .module = THIS_MODULE, |
188 | .auto_attach = apci1516_auto_attach, |
189 | .detach = apci1516_detach, |
190 | }; |
191 | |
192 | static int apci1516_pci_probe(struct pci_dev *dev, |
193 | const struct pci_device_id *id) |
194 | { |
195 | return comedi_pci_auto_config(pcidev: dev, driver: &apci1516_driver, context: id->driver_data); |
196 | } |
197 | |
198 | static const struct pci_device_id apci1516_pci_table[] = { |
199 | { PCI_VDEVICE(ADDIDATA, 0x1000), .driver_data: BOARD_APCI1016 }, |
200 | { PCI_VDEVICE(ADDIDATA, 0x1001), BOARD_APCI1516 }, |
201 | { PCI_VDEVICE(ADDIDATA, 0x1002), BOARD_APCI2016 }, |
202 | { 0 } |
203 | }; |
204 | MODULE_DEVICE_TABLE(pci, apci1516_pci_table); |
205 | |
206 | static struct pci_driver apci1516_pci_driver = { |
207 | .name = "addi_apci_1516" , |
208 | .id_table = apci1516_pci_table, |
209 | .probe = apci1516_pci_probe, |
210 | .remove = comedi_pci_auto_unconfig, |
211 | }; |
212 | module_comedi_pci_driver(apci1516_driver, apci1516_pci_driver); |
213 | |
214 | MODULE_DESCRIPTION("ADDI-DATA APCI-1016/1516/2016, 16 channel DIO boards" ); |
215 | MODULE_AUTHOR("Comedi https://www.comedi.org" ); |
216 | MODULE_LICENSE("GPL" ); |
217 | |