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ad9dbc1c KA |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
07182332 | 4 | * Copyright (C) 2014-2017 Kumar Abhishek <abhishek@theembeddedkitchen.net> |
ad9dbc1c KA |
5 | * |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #ifndef BEAGLELOGIC_H_ | |
21 | #define BEAGLELOGIC_H_ | |
22 | ||
23 | #include <fcntl.h> | |
ad9dbc1c KA |
24 | #include <sys/mman.h> |
25 | #include <sys/types.h> | |
26 | #include <sys/errno.h> | |
27 | #include <sys/ioctl.h> | |
ad9dbc1c | 28 | #include <stdlib.h> |
ad9dbc1c KA |
29 | #include <unistd.h> |
30 | ||
31 | /* BeagleLogic device node name */ | |
32 | #define BEAGLELOGIC_DEV_NODE "/dev/beaglelogic" | |
83bf4762 | 33 | #define BEAGLELOGIC_SYSFS_ATTR(a) "/sys/devices/virtual/misc/beaglelogic/" #a |
ad9dbc1c KA |
34 | |
35 | /* Reproduced verbatim from beaglelogic.h in the kernel tree until the kernel | |
36 | * module hits the mainline. Contains the ABI, so DO NOT TOUCH this section */ | |
37 | ||
38 | /* ioctl calls that can be issued on /dev/beaglelogic */ | |
39 | #define IOCTL_BL_GET_VERSION _IOR('k', 0x20, uint32_t) | |
40 | ||
41 | #define IOCTL_BL_GET_SAMPLE_RATE _IOR('k', 0x21, uint32_t) | |
42 | #define IOCTL_BL_SET_SAMPLE_RATE _IOW('k', 0x21, uint32_t) | |
43 | ||
44 | #define IOCTL_BL_GET_SAMPLE_UNIT _IOR('k', 0x22, uint32_t) | |
45 | #define IOCTL_BL_SET_SAMPLE_UNIT _IOW('k', 0x22, uint32_t) | |
46 | ||
47 | #define IOCTL_BL_GET_TRIGGER_FLAGS _IOR('k', 0x23, uint32_t) | |
48 | #define IOCTL_BL_SET_TRIGGER_FLAGS _IOW('k', 0x23, uint32_t) | |
49 | ||
0bca2e75 | 50 | #define IOCTL_BL_GET_CUR_INDEX _IOR('k', 0x24, uint32_t) |
ad9dbc1c KA |
51 | #define IOCTL_BL_CACHE_INVALIDATE _IO('k', 0x25) |
52 | ||
53 | #define IOCTL_BL_GET_BUFFER_SIZE _IOR('k', 0x26, uint32_t) | |
54 | #define IOCTL_BL_SET_BUFFER_SIZE _IOW('k', 0x26, uint32_t) | |
55 | ||
56 | #define IOCTL_BL_GET_BUFUNIT_SIZE _IOR('k', 0x27, uint32_t) | |
0bca2e75 | 57 | #define IOCTL_BL_SET_BUFUNIT_SIZE _IOW('k', 0x27, uint32_t) |
ad9dbc1c KA |
58 | |
59 | #define IOCTL_BL_FILL_TEST_PATTERN _IO('k', 0x28) | |
60 | ||
61 | #define IOCTL_BL_START _IO('k', 0x29) | |
62 | #define IOCTL_BL_STOP _IO('k', 0x2A) | |
63 | ||
64 | /* Possible States of BeagleLogic */ | |
65 | enum beaglelogic_states { | |
66 | STATE_BL_DISABLED, /* Powered off (at module start) */ | |
67 | STATE_BL_INITIALIZED, /* Powered on */ | |
68 | STATE_BL_MEMALLOCD, /* Buffers allocated */ | |
69 | STATE_BL_ARMED, /* All Buffers DMA-mapped and configuration done */ | |
70 | STATE_BL_RUNNING, /* Data being captured */ | |
71 | STATE_BL_REQUEST_STOP, /* Stop requested */ | |
72 | STATE_BL_ERROR /* Buffer overrun */ | |
73 | }; | |
74 | ||
75 | /* Setting attributes */ | |
76 | enum beaglelogic_triggerflags { | |
77 | BL_TRIGGERFLAGS_ONESHOT = 0, | |
78 | BL_TRIGGERFLAGS_CONTINUOUS | |
79 | }; | |
80 | ||
81 | /* Possible sample unit / formats */ | |
82 | enum beaglelogic_sampleunit { | |
83 | BL_SAMPLEUNIT_16_BITS = 0, | |
84 | BL_SAMPLEUNIT_8_BITS | |
85 | }; | |
86 | /* END beaglelogic.h */ | |
87 | ||
88 | /* For all the functions below: | |
89 | * Parameters: | |
90 | * devc : Device context structure to operate on | |
91 | * Returns: | |
92 | * SR_OK or SR_ERR | |
93 | */ | |
94 | ||
0bca2e75 KA |
95 | struct beaglelogic_ops { |
96 | int (*open)(struct dev_context *devc); | |
97 | int (*close)(struct dev_context *devc); | |
ad9dbc1c | 98 | |
0bca2e75 KA |
99 | int (*get_buffersize)(struct dev_context *devc); |
100 | int (*set_buffersize)(struct dev_context *devc); | |
ad9dbc1c | 101 | |
0bca2e75 KA |
102 | int (*get_samplerate)(struct dev_context *devc); |
103 | int (*set_samplerate)(struct dev_context *devc); | |
ad9dbc1c | 104 | |
0bca2e75 KA |
105 | int (*get_sampleunit)(struct dev_context *devc); |
106 | int (*set_sampleunit)(struct dev_context *devc); | |
ad9dbc1c | 107 | |
0bca2e75 KA |
108 | int (*get_triggerflags)(struct dev_context *devc); |
109 | int (*set_triggerflags)(struct dev_context *devc); | |
ad9dbc1c | 110 | |
0bca2e75 KA |
111 | /* Start and stop the capture operation */ |
112 | int (*start)(struct dev_context *devc); | |
113 | int (*stop)(struct dev_context *devc); | |
ad9dbc1c | 114 | |
0bca2e75 KA |
115 | /* Get the last error size */ |
116 | int (*get_lasterror)(struct dev_context *devc); | |
ad9dbc1c | 117 | |
0bca2e75 KA |
118 | /* Gets the unit size of the capture buffer (usually 4 or 8 MB) */ |
119 | int (*get_bufunitsize)(struct dev_context *devc); | |
120 | int (*set_bufunitsize)(struct dev_context *devc); | |
ad9dbc1c | 121 | |
0bca2e75 KA |
122 | int (*mmap)(struct dev_context *devc); |
123 | int (*munmap)(struct dev_context *devc); | |
124 | }; | |
125 | ||
126 | SR_PRIV extern const struct beaglelogic_ops beaglelogic_native_ops; | |
9b2b3ef9 KA |
127 | SR_PRIV extern const struct beaglelogic_ops beaglelogic_tcp_ops; |
128 | ||
129 | SR_PRIV int beaglelogic_tcp_detect(struct dev_context *devc); | |
f7d7ee82 | 130 | SR_PRIV int beaglelogic_tcp_drain(struct dev_context *devc); |
ad9dbc1c | 131 | |
db24496a | 132 | #endif |