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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 Bert Vermeulen <bert@biot.com> | |
5 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
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 3 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, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
21 | #ifndef LIBSIGROK_HARDWARE_FX2LAFW_PROTOCOL_H | |
22 | #define LIBSIGROK_HARDWARE_FX2LAFW_PROTOCOL_H | |
23 | ||
24 | #include <glib.h> | |
25 | #include <stdint.h> | |
26 | #include <stdlib.h> | |
27 | #include <string.h> | |
28 | #include <libusb.h> | |
29 | #include <libsigrok/libsigrok.h> | |
30 | #include "libsigrok-internal.h" | |
31 | ||
32 | #define LOG_PREFIX "fx2lafw" | |
33 | ||
34 | #define USB_INTERFACE 0 | |
35 | #define USB_CONFIGURATION 1 | |
36 | #define NUM_TRIGGER_STAGES 4 | |
37 | ||
38 | #define MAX_RENUM_DELAY_MS 3000 | |
39 | #define NUM_SIMUL_TRANSFERS 32 | |
40 | #define MAX_EMPTY_TRANSFERS (NUM_SIMUL_TRANSFERS * 2) | |
41 | ||
42 | #define NUM_CHANNELS 16 | |
43 | ||
44 | #define FX2LAFW_REQUIRED_VERSION_MAJOR 1 | |
45 | ||
46 | #define MAX_8BIT_SAMPLE_RATE SR_MHZ(24) | |
47 | #define MAX_16BIT_SAMPLE_RATE SR_MHZ(12) | |
48 | ||
49 | /* 6 delay states of up to 256 clock ticks */ | |
50 | #define MAX_SAMPLE_DELAY (6 * 256) | |
51 | ||
52 | #define DEV_CAPS_16BIT_POS 0 | |
53 | #define DEV_CAPS_AX_ANALOG_POS 1 | |
54 | ||
55 | #define DEV_CAPS_16BIT (1 << DEV_CAPS_16BIT_POS) | |
56 | #define DEV_CAPS_AX_ANALOG (1 << DEV_CAPS_AX_ANALOG_POS) | |
57 | ||
58 | /* Protocol commands */ | |
59 | #define CMD_GET_FW_VERSION 0xb0 | |
60 | #define CMD_START 0xb1 | |
61 | #define CMD_GET_REVID_VERSION 0xb2 | |
62 | ||
63 | #define CMD_START_FLAGS_CLK_CTL2_POS 4 | |
64 | #define CMD_START_FLAGS_WIDE_POS 5 | |
65 | #define CMD_START_FLAGS_CLK_SRC_POS 6 | |
66 | ||
67 | #define CMD_START_FLAGS_CLK_CTL2 (1 << CMD_START_FLAGS_CLK_CTL2_POS) | |
68 | #define CMD_START_FLAGS_SAMPLE_8BIT (0 << CMD_START_FLAGS_WIDE_POS) | |
69 | #define CMD_START_FLAGS_SAMPLE_16BIT (1 << CMD_START_FLAGS_WIDE_POS) | |
70 | ||
71 | #define CMD_START_FLAGS_CLK_30MHZ (0 << CMD_START_FLAGS_CLK_SRC_POS) | |
72 | #define CMD_START_FLAGS_CLK_48MHZ (1 << CMD_START_FLAGS_CLK_SRC_POS) | |
73 | ||
74 | struct fx2lafw_profile { | |
75 | uint16_t vid; | |
76 | uint16_t pid; | |
77 | ||
78 | const char *vendor; | |
79 | const char *model; | |
80 | const char *model_version; | |
81 | ||
82 | const char *firmware; | |
83 | ||
84 | uint32_t dev_caps; | |
85 | ||
86 | const char *usb_manufacturer; | |
87 | const char *usb_product; | |
88 | }; | |
89 | ||
90 | struct dev_context { | |
91 | const struct fx2lafw_profile *profile; | |
92 | char **channel_names; | |
93 | GSList *enabled_analog_channels; | |
94 | /* | |
95 | * Since we can't keep track of an fx2lafw device after upgrading | |
96 | * the firmware (it renumerates into a different device address | |
97 | * after the upgrade) this is like a global lock. No device will open | |
98 | * until a proper delay after the last device was upgraded. | |
99 | */ | |
100 | int64_t fw_updated; | |
101 | ||
102 | const uint64_t *samplerates; | |
103 | int num_samplerates; | |
104 | ||
105 | uint64_t cur_samplerate; | |
106 | uint64_t limit_frames; | |
107 | uint64_t limit_samples; | |
108 | uint64_t capture_ratio; | |
109 | ||
110 | gboolean trigger_fired; | |
111 | gboolean acq_aborted; | |
112 | gboolean sample_wide; | |
113 | struct soft_trigger_logic *stl; | |
114 | ||
115 | uint64_t num_frames; | |
116 | uint64_t sent_samples; | |
117 | int submitted_transfers; | |
118 | int empty_transfer_count; | |
119 | ||
120 | unsigned int num_transfers; | |
121 | struct libusb_transfer **transfers; | |
122 | struct sr_context *ctx; | |
123 | void (*send_data_proc)(struct sr_dev_inst *sdi, | |
124 | uint8_t *data, size_t length, size_t sample_width); | |
125 | uint8_t *logic_buffer; | |
126 | float *analog_buffer; | |
127 | }; | |
128 | ||
129 | SR_PRIV int fx2lafw_dev_open(struct sr_dev_inst *sdi, struct sr_dev_driver *di); | |
130 | SR_PRIV struct dev_context *fx2lafw_dev_new(void); | |
131 | SR_PRIV int fx2lafw_start_acquisition(const struct sr_dev_inst *sdi); | |
132 | SR_PRIV void fx2lafw_abort_acquisition(struct dev_context *devc); | |
133 | ||
134 | #endif |