]> sigrok.org Git - libsigrok.git/blame - src/hardware/hp-59306a/api.c
scpi-pps: don't break SCPI devices when scanning for HP-IB devices
[libsigrok.git] / src / hardware / hp-59306a / api.c
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1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2021 Frank Stettner <frank-stettner@gmx.net>
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#include <config.h>
584269fd 21#include "scpi.h"
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22#include "protocol.h"
23
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24static const uint32_t scanopts[] = {
25 SR_CONF_CONN,
26};
12e7abe2 27
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28static const uint32_t drvopts[] = {
29 SR_CONF_MULTIPLEXER,
30};
12e7abe2 31
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32static const uint32_t devopts[] = {
33 /*
34 * TODO Enable/disable multiple channel groups at once.
35 * SR_CONF_ENABLED | SR_CONF_SET,
36 */
37};
12e7abe2 38
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39static const uint32_t devopts_cg[] = {
40 SR_CONF_ENABLED | SR_CONF_SET,
41};
12e7abe2 42
584269fd 43static struct sr_dev_driver hp_59306a_driver_info;
12e7abe2 44
584269fd 45static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
12e7abe2 46{
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47 struct sr_dev_inst *sdi;
48 struct dev_context *devc;
49 struct channel_group_context *cgc;
50 size_t idx, nr;
51 struct sr_channel_group *cg;
52
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53 /*
54 * The device cannot get identified by means of SCPI queries.
55 * Neither shall non-SCPI requests get emitted before reliable
56 * identification of the device. Assume that we only get here
57 * when user specs led us to believe it's safe to communicate
58 * to the expected kind of device.
59 */
60
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61 sdi = g_malloc0(sizeof(*sdi));
62 sdi->vendor = g_strdup("Hewlett-Packard");
63 sdi->model = g_strdup("59306A");
64 sdi->conn = scpi;
65 sdi->driver = &hp_59306a_driver_info;
66 sdi->inst_type = SR_INST_SCPI;
67
68 devc = g_malloc0(sizeof(*devc));
69 sdi->priv = devc;
70
71 devc->channel_count = 6;
72 for (idx = 0; idx < devc->channel_count; idx++) {
73 nr = idx + 1;
74
75 cg = g_malloc0(sizeof(*cg));
76 cg->name = g_strdup_printf("CH%zu", nr);
77
78 cgc = g_malloc0(sizeof(*cgc));
79 cgc->number = nr;
80 cg->priv = cgc;
81
82 sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
83 }
12e7abe2 84
584269fd 85 return sdi;
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86}
87
584269fd 88static GSList *scan(struct sr_dev_driver *di, GSList *options)
12e7abe2 89{
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90 const char *conn;
91
92 /* Only scan for a device when conn= was specified. */
93 conn = NULL;
94 (void)sr_serial_extract_options(options, &conn, NULL);
95 if (!conn)
96 return NULL;
97
584269fd 98 return sr_scpi_scan(di->context, options, probe_device);
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99}
100
584269fd 101static int dev_open(struct sr_dev_inst *sdi)
12e7abe2 102{
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103 return sr_scpi_open(sdi->conn);
104}
12e7abe2 105
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106static int dev_close(struct sr_dev_inst *sdi)
107{
108 return sr_scpi_close(sdi->conn);
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109}
110
111static int config_set(uint32_t key, GVariant *data,
112 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
113{
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114 gboolean on;
115
116 if (!cg) {
117 switch (key) {
118 /* TODO: Enable/disbale multiple channel groups at once. */
119 case SR_CONF_ENABLED:
120 default:
121 return SR_ERR_NA;
122 }
123 } else {
124 switch (key) {
125 case SR_CONF_ENABLED:
126 on = g_variant_get_boolean(data);
127 return hp_59306a_switch_cg(sdi, cg, on);
128 default:
129 return SR_ERR_NA;
130 }
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131 }
132
584269fd 133 return SR_OK;
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134}
135
136static int config_list(uint32_t key, GVariant **data,
137 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
138{
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139 if (!cg) {
140 switch (key) {
141 case SR_CONF_SCAN_OPTIONS:
142 case SR_CONF_DEVICE_OPTIONS:
143 return STD_CONFIG_LIST(key, data, sdi, cg,
144 scanopts, drvopts, devopts);
145 default:
146 return SR_ERR_NA;
147 }
148 } else {
149 switch (key) {
150 case SR_CONF_DEVICE_OPTIONS:
151 *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg));
152 break;
153 default:
154 return SR_ERR_NA;
155 }
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156 }
157
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158 return SR_OK;
159}
160
161static struct sr_dev_driver hp_59306a_driver_info = {
162 .name = "hp-59306a",
163 .longname = "hp-59306a",
164 .api_version = 1,
165 .init = std_init,
166 .cleanup = std_cleanup,
167 .scan = scan,
168 .dev_list = std_dev_list,
169 .dev_clear = std_dev_clear,
584269fd 170 .config_get = NULL,
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171 .config_set = config_set,
172 .config_list = config_list,
173 .dev_open = dev_open,
174 .dev_close = dev_close,
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175 .dev_acquisition_start = std_dummy_dev_acquisition_start,
176 .dev_acquisition_stop = std_dummy_dev_acquisition_stop,
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177 .context = NULL,
178};
179SR_REGISTER_DEV_DRIVER(hp_59306a_driver_info);