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1 | /** |
2 | * @file me8200_device.h | |
3 | * | |
4 | * @brief ME-8200 device class. | |
5 | * @note Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de) | |
6 | * @author Guenter Gebhardt | |
7 | */ | |
8 | ||
9 | /* | |
10 | * Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de) | |
11 | * | |
12 | * This file is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | */ | |
26 | ||
27 | #ifndef _ME8200_DEVICE_H | |
28 | #define _ME8200_DEVICE_H | |
29 | ||
30 | #include <linux/pci.h> | |
31 | #include <linux/spinlock.h> | |
32 | ||
33 | #include "medevice.h" | |
34 | ||
35 | #ifdef __KERNEL__ | |
36 | ||
37 | /** | |
38 | * @brief Structure holding ME-8200 device capabilities. | |
39 | */ | |
40 | typedef struct me8200_version { | |
41 | uint16_t device_id; | |
42 | unsigned int di_subdevices; | |
43 | unsigned int do_subdevices; | |
44 | unsigned int dio_subdevices; | |
45 | } me8200_version_t; | |
46 | ||
47 | /** | |
48 | * @brief Device capabilities. | |
49 | */ | |
50 | static me8200_version_t me8200_versions[] = { | |
51 | {PCI_DEVICE_ID_MEILHAUS_ME8200_A, 1, 1, 2}, | |
52 | {PCI_DEVICE_ID_MEILHAUS_ME8200_B, 2, 2, 2}, | |
53 | {0}, | |
54 | }; | |
55 | ||
b6ac1613 | 56 | #define ME8200_DEVICE_VERSIONS (ARRAY_SIZE(me8200_versions) - 1) /**< Returns the number of entries in #me8200_versions. */ |
3fedd148 DK |
57 | |
58 | /** | |
59 | * @brief Returns the index of the device entry in #me8200_versions. | |
60 | * | |
61 | * @param device_id The PCI device id of the device to query. | |
62 | * @return The index of the device in #me8200_versions. | |
63 | */ | |
64 | static inline unsigned int me8200_versions_get_device_index(uint16_t device_id) | |
65 | { | |
66 | unsigned int i; | |
67 | for (i = 0; i < ME8200_DEVICE_VERSIONS; i++) | |
68 | if (me8200_versions[i].device_id == device_id) | |
69 | break; | |
70 | return i; | |
71 | } | |
72 | ||
73 | /** | |
74 | * @brief The ME-8200 device class structure. | |
75 | */ | |
76 | typedef struct me8200_device { | |
77 | me_device_t base; /**< The Meilhaus device base class. */ | |
78 | ||
79 | /* Child class attributes. */ | |
80 | spinlock_t irq_ctrl_lock; /**< Lock for the interrupt control register. */ | |
81 | spinlock_t irq_mode_lock; /**< Lock for the interrupt mode register. */ | |
82 | spinlock_t dio_ctrl_lock; /**< Lock for the digital i/o control register. */ | |
83 | } me8200_device_t; | |
84 | ||
85 | /** | |
86 | * @brief The ME-8200 device class constructor. | |
87 | * | |
88 | * @param pci_device The pci device structure given by the PCI subsystem. | |
89 | * | |
90 | * @return On succes a new ME-8200 device instance. \n | |
91 | * NULL on error. | |
92 | */ | |
93 | me_device_t *me8200_pci_constructor(struct pci_dev *pci_device) | |
94 | __attribute__ ((weak)); | |
95 | ||
96 | #endif | |
97 | #endif |