X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=blobdiff_plain;f=hardware%2Fagilent-dmm%2Fapi.c;h=c358640da3687eee9f9cc75baae1522946659928;hp=da5cad6f9e89e099b54d1cf1d323fc58308d73d0;hb=ba7dd8bbb8168cba432a844259a3e239aa5f36d7;hpb=c2016fa0eb1d0eb1b9ebf8af4556f6d606614f61 diff --git a/hardware/agilent-dmm/api.c b/hardware/agilent-dmm/api.c index da5cad6f..c358640d 100644 --- a/hardware/agilent-dmm/api.c +++ b/hardware/agilent-dmm/api.c @@ -1,5 +1,5 @@ /* - * This file is part of the sigrok project. + * This file is part of the libsigrok project. * * Copyright (C) 2012 Bert Vermeulen * @@ -18,33 +18,25 @@ */ #include -#include "libsigrok.h" -#include "libsigrok-internal.h" -#include "config.h" -#include "agilent-dmm.h" #include #include #include #include #include +#include "libsigrok.h" +#include "libsigrok-internal.h" +#include "agilent-dmm.h" -static const int hwopts[] = { - SR_HWOPT_CONN, - SR_HWOPT_SERIALCOMM, - 0, -}; - -static const int hwcaps[] = { - SR_HWCAP_MULTIMETER, - SR_HWCAP_LIMIT_SAMPLES, - SR_HWCAP_LIMIT_MSEC, - SR_HWCAP_CONTINUOUS, - 0, +static const int32_t hwopts[] = { + SR_CONF_CONN, + SR_CONF_SERIALCOMM, }; -static const char *probe_names[] = { - "Probe", - NULL, +static const int32_t hwcaps[] = { + SR_CONF_MULTIMETER, + SR_CONF_LIMIT_SAMPLES, + SR_CONF_LIMIT_MSEC, + SR_CONF_CONTINUOUS, }; extern const struct agdmm_job agdmm_jobs_u123x[]; @@ -52,109 +44,38 @@ extern const struct agdmm_recv agdmm_recvs_u123x[]; extern const struct agdmm_job agdmm_jobs_u125x[]; extern const struct agdmm_recv agdmm_recvs_u125x[]; +/* This works on all the Agilent U12xxA series, although the + * U127xA can apparently also run at 19200/8n1. */ +#define SERIALCOMM "9600/8n1" + static const struct agdmm_profile supported_agdmm[] = { - { AGILENT_U1231A, "U1231A", 9600, agdmm_jobs_u123x, agdmm_recvs_u123x }, - { AGILENT_U1232A, "U1232A", 9600, agdmm_jobs_u123x, agdmm_recvs_u123x }, - { AGILENT_U1233A, "U1233A", 9600, agdmm_jobs_u123x, agdmm_recvs_u123x }, - { AGILENT_U1251A, "U1251A", 9600, agdmm_jobs_u125x, agdmm_recvs_u125x }, - { AGILENT_U1252A, "U1252A", 9600, agdmm_jobs_u125x, agdmm_recvs_u125x }, - { AGILENT_U1253A, "U1253A", 9600, agdmm_jobs_u125x, agdmm_recvs_u125x }, - { 0, NULL, 0, NULL, NULL } + { AGILENT_U1231A, "U1231A", agdmm_jobs_u123x, agdmm_recvs_u123x }, + { AGILENT_U1232A, "U1232A", agdmm_jobs_u123x, agdmm_recvs_u123x }, + { AGILENT_U1233A, "U1233A", agdmm_jobs_u123x, agdmm_recvs_u123x }, + { AGILENT_U1251A, "U1251A", agdmm_jobs_u125x, agdmm_recvs_u125x }, + { AGILENT_U1252A, "U1252A", agdmm_jobs_u125x, agdmm_recvs_u125x }, + { AGILENT_U1253A, "U1253A", agdmm_jobs_u125x, agdmm_recvs_u125x }, + { 0, NULL, NULL, NULL } }; SR_PRIV struct sr_dev_driver agdmm_driver_info; static struct sr_dev_driver *di = &agdmm_driver_info; -/* Properly close and free all devices. */ -static int clear_instances(void) -{ - struct sr_dev_inst *sdi; - struct drv_context *drvc; - struct dev_context *devc; - GSList *l; - - if (!(drvc = di->priv)) - return SR_OK; - - drvc = di->priv; - for (l = drvc->instances; l; l = l->next) { - if (!(sdi = l->data)) - continue; - if (!(devc = sdi->priv)) - continue; - sr_serial_dev_inst_free(devc->serial); - sr_dev_inst_free(sdi); - } - g_slist_free(drvc->instances); - drvc->instances = NULL; - - return SR_OK; -} - -static int hw_init(void) -{ - struct drv_context *drvc; - - if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) { - sr_err("agilent-dmm: driver context malloc failed."); - return SR_ERR; - } - - di->priv = drvc; - - return SR_OK; -} - -static int serial_readline(int fd, char **buf, int *buflen, uint64_t timeout_ms) +static int init(struct sr_context *sr_ctx) { - uint64_t start; - int maxlen, len; - - timeout_ms *= 1000; - start = g_get_monotonic_time(); - - maxlen = *buflen; - *buflen = len = 0; - while(1) { - len = maxlen - *buflen - 1; - if (len < 1) - break; - len = serial_read(fd, *buf + *buflen, len); - if (len > 0) { - *buflen += len; - *(*buf + *buflen) = '\0'; - if (*buflen > 0 && *(*buf + *buflen - 1) == '\n') - /* End of line */ - break; - } - if (g_get_monotonic_time() - start > timeout_ms) - /* Timeout */ - break; - g_usleep(2000); - } - - /* Strip CRLF */ - while (*buflen) { - if (*(*buf + *buflen - 1) == '\r' || *(*buf + *buflen - 1) == '\n') - *(*buf + --*buflen) = '\0'; - else - break; - } - if (*buflen) - sr_dbg("agilent-dmm: received '%s'", *buf); - - return SR_OK; + return std_init(sr_ctx, di, LOG_PREFIX); } -static GSList *hw_scan(GSList *options) +static GSList *scan(GSList *options) { struct sr_dev_inst *sdi; struct drv_context *drvc; struct dev_context *devc; - struct sr_hwopt *opt; - struct sr_probe *probe; + struct sr_config *src; + struct sr_channel *ch; + struct sr_serial_dev_inst *serial; GSList *l, *devices; - int len, fd, i; + int len, i; const char *conn, *serialcomm; char *buf, **tokens; @@ -164,64 +85,65 @@ static GSList *hw_scan(GSList *options) devices = NULL; conn = serialcomm = NULL; for (l = options; l; l = l->next) { - opt = l->data; - switch (opt->hwopt) { - case SR_HWOPT_CONN: - conn = opt->value; + src = l->data; + switch (src->key) { + case SR_CONF_CONN: + conn = g_variant_get_string(src->data, NULL); break; - case SR_HWOPT_SERIALCOMM: - serialcomm = opt->value; + case SR_CONF_SERIALCOMM: + serialcomm = g_variant_get_string(src->data, NULL); break; } } - if (!conn || !serialcomm) + if (!conn) return NULL; + if (!serialcomm) + serialcomm = SERIALCOMM; - if ((fd = serial_open(conn, O_RDWR|O_NONBLOCK)) == -1) { - sr_err("agilent-dmm: unable to open %s: %s", conn, strerror(errno)); + if (!(serial = sr_serial_dev_inst_new(conn, serialcomm))) return NULL; - } - if (serial_set_paramstr(fd, serialcomm) != SR_OK) { - sr_err("agilent-dmm: unable to set serial parameters: %s", - strerror(errno)); + if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK) return NULL; - } - serial_flush(fd); - if (serial_write(fd, "*IDN?\r\n", 7) == -1) { - sr_err("agilent-dmm: unable to send identification string: %s", - strerror(errno)); + serial_flush(serial); + if (serial_write(serial, "*IDN?\r\n", 7) == -1) { + sr_err("Unable to send identification string: %s.", + strerror(errno)); return NULL; } len = 128; - buf = g_try_malloc(len); - serial_readline(fd, &buf, &len, 150); + if (!(buf = g_try_malloc(len))) { + sr_err("Serial buffer malloc failed."); + return NULL; + } + serial_readline(serial, &buf, &len, 150); if (!len) return NULL; tokens = g_strsplit(buf, ",", 4); if (!strcmp("Agilent Technologies", tokens[0]) - && tokens[2] && tokens[3]) { + && tokens[1] && tokens[2] && tokens[3]) { for (i = 0; supported_agdmm[i].model; i++) { if (strcmp(supported_agdmm[i].modelname, tokens[1])) continue; - if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, tokens[0], + if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Agilent", tokens[1], tokens[3]))) return NULL; if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { - sr_dbg("agilent-dmm: failed to malloc devc"); + sr_err("Device context malloc failed."); return NULL; } devc->profile = &supported_agdmm[i]; - devc->serial = sr_serial_dev_inst_new(conn, -1); devc->cur_mq = -1; + sdi->inst_type = SR_INST_SERIAL; + sdi->conn = serial; sdi->priv = devc; sdi->driver = di; - if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1"))) + if (!(ch = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1"))) return NULL; - sdi->probes = g_slist_append(sdi->probes, probe); + sdi->channels = g_slist_append(sdi->channels, ch); drvc->instances = g_slist_append(drvc->instances, sdi); devices = g_slist_append(devices, sdi); break; @@ -230,212 +152,129 @@ static GSList *hw_scan(GSList *options) g_strfreev(tokens); g_free(buf); - serial_close(fd); + serial_close(serial); + if (!devices) + sr_serial_dev_inst_free(serial); return devices; } -static GSList *hw_dev_list(void) +static GSList *dev_list(void) { - struct drv_context *drvc; - - drvc = di->priv; - - return drvc->instances; + return ((struct drv_context *)(di->priv))->instances; } -static int hw_dev_open(struct sr_dev_inst *sdi) +static int cleanup(void) { - struct dev_context *devc; - - if (!(devc = sdi->priv)) { - sr_err("agilent-dmm: sdi->priv was NULL."); - return SR_ERR_BUG; - } - - devc->serial->fd = serial_open(devc->serial->port, O_RDWR | O_NONBLOCK); - if (devc->serial->fd == -1) { - sr_err("agilent-dmm: Couldn't open serial port '%s'.", - devc->serial->port); - return SR_ERR; - } - serial_set_params(devc->serial->fd, devc->profile->serial_speed, 8, - SERIAL_PARITY_NONE, 1, 0); - sdi->status = SR_ST_ACTIVE; - - return SR_OK; + return std_dev_clear(di, NULL); } -static int hw_dev_close(struct sr_dev_inst *sdi) +static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi, + const struct sr_channel_group *cg) { struct dev_context *devc; - if (!(devc = sdi->priv)) { - sr_err("agilent-dmm: sdi->priv was NULL."); - return SR_ERR_BUG; - } - - if (devc->serial && devc->serial->fd != -1) { - serial_close(devc->serial->fd); - devc->serial->fd = -1; - sdi->status = SR_ST_INACTIVE; - } - - return SR_OK; -} - -static int hw_cleanup(void) -{ - - clear_instances(); - - return SR_OK; -} - -static int hw_info_get(int info_id, const void **data, - const struct sr_dev_inst *sdi) -{ - - (void)sdi; - - switch (info_id) { - case SR_DI_HWOPTS: - *data = hwopts; - break; - case SR_DI_HWCAPS: - *data = hwcaps; - break; - case SR_DI_NUM_PROBES: - *data = GINT_TO_POINTER(1); - break; - case SR_DI_PROBE_NAMES: - *data = probe_names; - break; - default: - return SR_ERR_ARG; - } - - return SR_OK; -} - -static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap, - const void *value) -{ - struct dev_context *devc; + (void)cg; if (sdi->status != SR_ST_ACTIVE) - return SR_ERR; + return SR_ERR_DEV_CLOSED; if (!(devc = sdi->priv)) { - sr_err("agilent-dmm: sdi->priv was NULL."); + sr_err("sdi->priv was NULL."); return SR_ERR_BUG; } - switch (hwcap) { - case SR_HWCAP_LIMIT_MSEC: + switch (id) { + case SR_CONF_LIMIT_MSEC: /* TODO: not yet implemented */ - if (*(const uint64_t *)value == 0) { - sr_err("agilent-dmm: LIMIT_MSEC can't be 0."); + if (g_variant_get_uint64(data) == 0) { + sr_err("LIMIT_MSEC can't be 0."); return SR_ERR; } - devc->limit_msec = *(const uint64_t *)value; - sr_dbg("agilent-dmm: Setting time limit to %" PRIu64 "ms.", + devc->limit_msec = g_variant_get_uint64(data); + sr_dbg("Setting time limit to %" PRIu64 "ms.", devc->limit_msec); break; - case SR_HWCAP_LIMIT_SAMPLES: - devc->limit_samples = *(const uint64_t *)value; - sr_dbg("agilent-dmm: Setting sample limit to %" PRIu64 ".", + case SR_CONF_LIMIT_SAMPLES: + devc->limit_samples = g_variant_get_uint64(data); + sr_dbg("Setting sample limit to %" PRIu64 ".", devc->limit_samples); break; default: - sr_err("agilent-dmm: Unknown capability: %d.", hwcap); - return SR_ERR; - break; + return SR_ERR_NA; } return SR_OK; } -static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, - void *cb_data) +static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, + const struct sr_channel_group *cg) { - struct sr_datafeed_packet packet; - struct sr_datafeed_header header; - struct sr_datafeed_meta_analog meta; - struct dev_context *devc; + (void)sdi; + (void)cg; - if (!(devc = sdi->priv)) { - sr_err("agilent-dmm: sdi->priv was NULL."); - return SR_ERR_BUG; + switch (key) { + case SR_CONF_SCAN_OPTIONS: + *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, + hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); + break; + case SR_CONF_DEVICE_OPTIONS: + *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, + hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); + break; + default: + return SR_ERR_NA; } - sr_dbg("agilent-dmm: Starting acquisition."); - - devc->cb_data = cb_data; - - /* Send header packet to the session bus. */ - sr_dbg("agilent-dmm: Sending SR_DF_HEADER."); - packet.type = SR_DF_HEADER; - packet.payload = (uint8_t *)&header; - header.feed_version = 1; - gettimeofday(&header.starttime, NULL); - sr_session_send(devc->cb_data, &packet); - - /* Send metadata about the SR_DF_ANALOG packets to come. */ - sr_dbg("agilent-dmm: Sending SR_DF_META_ANALOG."); - packet.type = SR_DF_META_ANALOG; - packet.payload = &meta; - meta.num_probes = 1; - sr_session_send(devc->cb_data, &packet); - - /* Poll every 100ms, or whenever some data comes in. */ - sr_source_add(devc->serial->fd, G_IO_IN, 100, agdmm_receive_data, (void *)sdi); - return SR_OK; } -static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi, - void *cb_data) +static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) { - struct sr_datafeed_packet packet; struct dev_context *devc; + struct sr_serial_dev_inst *serial; if (sdi->status != SR_ST_ACTIVE) - return SR_ERR; + return SR_ERR_DEV_CLOSED; if (!(devc = sdi->priv)) { - sr_err("agilent-dmm: sdi->priv was NULL."); + sr_err("sdi->priv was NULL."); return SR_ERR_BUG; } - sr_dbg("agilent-dmm: Stopping acquisition."); - - sr_source_remove(devc->serial->fd); - hw_dev_close((struct sr_dev_inst *)sdi); + devc->cb_data = cb_data; - /* Send end packet to the session bus. */ - sr_dbg("agilent-dmm: Sending SR_DF_END."); - packet.type = SR_DF_END; - sr_session_send(cb_data, &packet); + /* Send header packet to the session bus. */ + std_session_send_df_header(cb_data, LOG_PREFIX); + /* Poll every 100ms, or whenever some data comes in. */ + serial = sdi->conn; + serial_source_add(serial, G_IO_IN, 100, agdmm_receive_data, (void *)sdi); return SR_OK; } +static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) +{ + return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close, + sdi->conn, LOG_PREFIX); +} + SR_PRIV struct sr_dev_driver agdmm_driver_info = { .name = "agilent-dmm", .longname = "Agilent U12xx series DMMs", .api_version = 1, - .init = hw_init, - .cleanup = hw_cleanup, - .scan = hw_scan, - .dev_list = hw_dev_list, - .dev_clear = clear_instances, - .dev_open = hw_dev_open, - .dev_close = hw_dev_close, - .info_get = hw_info_get, - .dev_config_set = hw_dev_config_set, - .dev_acquisition_start = hw_dev_acquisition_start, - .dev_acquisition_stop = hw_dev_acquisition_stop, + .init = init, + .cleanup = cleanup, + .scan = scan, + .dev_list = dev_list, + .dev_clear = NULL, + .config_get = NULL, + .config_set = config_set, + .config_list = config_list, + .dev_open = std_serial_dev_open, + .dev_close = std_serial_dev_close, + .dev_acquisition_start = dev_acquisition_start, + .dev_acquisition_stop = dev_acquisition_stop, .priv = NULL, };