]>
Commit | Line | Data |
---|---|---|
3fedd148 DK |
1 | /** |
2 | * @file me8200_di.h | |
3 | * | |
4 | * @brief ME-8200 digital input subdevice 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_DI_H_ | |
28 | #define _ME8200_DI_H_ | |
29 | ||
30 | #include "mesubdevice.h" | |
31 | ||
32 | #ifdef __KERNEL__ | |
33 | ||
34 | /** | |
35 | * @brief The template subdevice class. | |
36 | */ | |
37 | typedef struct me8200_di_subdevice { | |
38 | /* Inheritance */ | |
39 | me_subdevice_t base; /**< The subdevice base class. */ | |
40 | ||
41 | /* Attributes */ | |
42 | spinlock_t subdevice_lock; /**< Spin lock to protect the subdevice from concurrent access. */ | |
43 | spinlock_t *ctrl_reg_lock; | |
44 | spinlock_t *irq_ctrl_lock; | |
45 | spinlock_t *irq_mode_lock; | |
46 | ||
47 | unsigned int di_idx; | |
48 | unsigned int version; | |
49 | ||
50 | int irq; /**< The number of the interrupt request. */ | |
51 | volatile int rised; /**< Flag to indicate if an interrupt occured. */ | |
52 | uint status_flag; /**< Default interupt status flag */ | |
53 | uint status_value; /**< Interupt status */ | |
54 | uint status_value_edges; /**< Extended interupt status */ | |
55 | uint line_value; | |
56 | int count; /**< Counts the number of interrupts occured. */ | |
57 | uint8_t compare_value; | |
58 | uint8_t filtering_flag; | |
59 | ||
60 | wait_queue_head_t wait_queue; /**< To wait on interrupts. */ | |
61 | ||
62 | unsigned long port_reg; /**< The digital input port. */ | |
63 | unsigned long compare_reg; /**< The register to hold the value to compare with. */ | |
64 | unsigned long mask_reg; /**< The register to hold the mask. */ | |
65 | unsigned long irq_mode_reg; /**< The interrupt mode register. */ | |
66 | unsigned long irq_ctrl_reg; /**< The interrupt control register. */ | |
67 | unsigned long irq_status_reg; /**< The interrupt status register. Also interrupt reseting register (firmware version 7 and later).*/ | |
68 | #ifdef MEDEBUG_DEBUG_REG | |
69 | unsigned long reg_base; | |
70 | #endif | |
71 | unsigned long firmware_version_reg; /**< The interrupt reseting register. */ | |
72 | ||
73 | unsigned long irq_status_low_reg; /**< The interrupt extended status register (low part). */ | |
74 | unsigned long irq_status_high_reg; /**< The interrupt extended status register (high part). */ | |
75 | } me8200_di_subdevice_t; | |
76 | ||
77 | /** | |
78 | * @brief The constructor to generate a ME-8200 digital input subdevice instance. | |
79 | * | |
80 | * @param reg_base The register base address of the device as returned by the PCI BIOS. | |
81 | * | |
82 | * @return Pointer to new instance on success.\n | |
83 | * NULL on error. | |
84 | */ | |
85 | me8200_di_subdevice_t *me8200_di_constructor(uint32_t me8200_reg_base, | |
86 | unsigned int di_idx, | |
87 | int irq, | |
88 | spinlock_t * irq_ctrl_lock, | |
89 | spinlock_t * irq_mode_lock); | |
90 | ||
91 | #endif | |
92 | #endif |