X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fkecheng-kc-330b%2Fapi.c;h=d9e647d12f682818dda54d23133db5de601cdb9e;hb=7f4975b4401a1e8de61e356b5b272fc00b658260;hp=9afc3979ce636cab16e1c90c453dfc0d12ab8cc4;hpb=bc7be4a9f4940dd9708208bddab87bd190ef816f;p=libsigrok.git diff --git a/hardware/kecheng-kc-330b/api.c b/hardware/kecheng-kc-330b/api.c index 9afc3979..d9e647d1 100644 --- a/hardware/kecheng-kc-330b/api.c +++ b/hardware/kecheng-kc-330b/api.c @@ -34,7 +34,7 @@ static const int32_t hwcaps[] = { SR_CONF_DATA_SOURCE, }; -static const uint64_t sample_intervals[][2] = { +SR_PRIV const uint64_t kecheng_kc_330b_sample_intervals[][2] = { { 1, 8 }, { 1, 2 }, { 1, 1 }, @@ -103,7 +103,6 @@ static int scan_kecheng(struct sr_usb_dev_inst *usb, char **model) buf[buf[1] + 2] = '\x0'; *model = g_strndup((const gchar *)buf + 2, 30); - //g_strstrip(*model); return SR_OK; } @@ -153,6 +152,7 @@ static GSList *scan(GSList *options) devc->alarm_high = DEFAULT_ALARM_HIGH; devc->mqflags = DEFAULT_WEIGHT_TIME | DEFAULT_WEIGHT_FREQ; devc->data_source = DEFAULT_DATA_SOURCE; + devc->config_dirty = FALSE; /* TODO: Set date/time? */ @@ -168,11 +168,7 @@ static GSList *scan(GSList *options) static GSList *dev_list(void) { - struct drv_context *drvc; - - drvc = di->priv; - - return drvc->instances; + return ((struct drv_context *)(di->priv))->instances; } static int dev_clear(void) @@ -196,20 +192,23 @@ static int dev_open(struct sr_dev_inst *sdi) if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK) return SR_ERR; + if ((ret = libusb_set_configuration(usb->devhdl, 1))) { + sr_err("Failed to set configuration: %s.", libusb_error_name(ret)); + return SR_ERR; + } + if ((ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE))) { sr_err("Failed to claim interface: %s.", libusb_error_name(ret)); return SR_ERR; } sdi->status = SR_ST_ACTIVE; - /* Force configuration. */ - ret = kecheng_kc_330b_configure(sdi); - return ret; } static int dev_close(struct sr_dev_inst *sdi) { + struct dev_context *devc; struct sr_usb_dev_inst *usb; if (!di->priv) { @@ -223,6 +222,12 @@ static int dev_close(struct sr_dev_inst *sdi) /* Nothing to do. */ return SR_OK; + /* This allows a frontend to configure the device without ever + * doing an acquisition step. */ + devc = sdi->priv; + if (!devc->config_dirty) + kecheng_kc_330b_configure(sdi); + libusb_release_interface(usb->devhdl, USB_INTERFACE); libusb_close(usb->devhdl); usb->devhdl = NULL; @@ -247,12 +252,14 @@ static int cleanup(void) return ret; } -static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi) +static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi, + const struct sr_probe_group *probe_group) { struct dev_context *devc; GVariant *rational[2]; const uint64_t *si; - int tmp, ret; + + (void)probe_group; devc = sdi->priv; switch (key) { @@ -260,16 +267,14 @@ static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi) *data = g_variant_new_uint64(devc->limit_samples); break; case SR_CONF_SAMPLE_INTERVAL: - si = sample_intervals[devc->sample_interval]; + si = kecheng_kc_330b_sample_intervals[devc->sample_interval]; rational[0] = g_variant_new_uint64(si[0]); rational[1] = g_variant_new_uint64(si[1]); *data = g_variant_new_tuple(rational, 2); break; case SR_CONF_DATALOG: - if ((ret = kecheng_kc_330b_recording_get(sdi, &tmp)) == SR_OK) - *data = g_variant_new_boolean(tmp); - else - return SR_ERR; + /* There really isn't a way to be sure the device is logging. */ + return SR_ERR_NA; break; case SR_CONF_SPL_WEIGHT_FREQ: if (devc->mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_A) @@ -296,7 +301,8 @@ static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi) return SR_OK; } -static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi) +static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi, + const struct sr_probe_group *probe_group) { struct dev_context *devc; uint64_t p, q; @@ -304,6 +310,8 @@ static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi) int tmp, ret; const char *tmp_str; + (void)probe_group; + if (sdi->status != SR_ST_ACTIVE) return SR_ERR_DEV_CLOSED; @@ -322,14 +330,14 @@ static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi) break; case SR_CONF_SAMPLE_INTERVAL: g_variant_get(data, "(tt)", &p, &q); - for (i = 0; i < ARRAY_SIZE(sample_intervals); i++) { - if (sample_intervals[i][0] != p || sample_intervals[i][1] != q) + for (i = 0; i < ARRAY_SIZE(kecheng_kc_330b_sample_intervals); i++) { + if (kecheng_kc_330b_sample_intervals[i][0] != p || kecheng_kc_330b_sample_intervals[i][1] != q) continue; devc->sample_interval = i; - kecheng_kc_330b_configure(sdi); + devc->config_dirty = TRUE; break; } - if (i == ARRAY_SIZE(sample_intervals)) + if (i == ARRAY_SIZE(kecheng_kc_330b_sample_intervals)) ret = SR_ERR_ARG; break; case SR_CONF_SPL_WEIGHT_FREQ: @@ -342,7 +350,7 @@ static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi) return SR_ERR_ARG; devc->mqflags &= ~(SR_MQFLAG_SPL_FREQ_WEIGHT_A | SR_MQFLAG_SPL_FREQ_WEIGHT_C); devc->mqflags |= tmp; - kecheng_kc_330b_configure(sdi); + devc->config_dirty = TRUE; break; case SR_CONF_SPL_WEIGHT_TIME: tmp_str = g_variant_get_string(data, NULL); @@ -354,7 +362,7 @@ static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi) return SR_ERR_ARG; devc->mqflags &= ~(SR_MQFLAG_SPL_TIME_WEIGHT_F | SR_MQFLAG_SPL_TIME_WEIGHT_S); devc->mqflags |= tmp; - kecheng_kc_330b_configure(sdi); + devc->config_dirty = TRUE; break; case SR_CONF_DATA_SOURCE: tmp_str = g_variant_get_string(data, NULL); @@ -364,6 +372,7 @@ static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi) devc->data_source = DATA_SOURCE_MEMORY; else return SR_ERR; + devc->config_dirty = TRUE; break; default: ret = SR_ERR_NA; @@ -372,13 +381,15 @@ static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi) return ret; } -static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi) +static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, + const struct sr_probe_group *probe_group) { GVariant *tuple, *rational[2]; GVariantBuilder gvb; unsigned int i; (void)sdi; + (void)probe_group; switch (key) { case SR_CONF_DEVICE_OPTIONS: @@ -387,9 +398,9 @@ static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi) break; case SR_CONF_SAMPLE_INTERVAL: g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); - for (i = 0; i < ARRAY_SIZE(sample_intervals); i++) { - rational[0] = g_variant_new_uint64(sample_intervals[i][0]); - rational[1] = g_variant_new_uint64(sample_intervals[i][1]); + for (i = 0; i < ARRAY_SIZE(kecheng_kc_330b_sample_intervals); i++) { + rational[0] = g_variant_new_uint64(kecheng_kc_330b_sample_intervals[i][0]); + rational[1] = g_variant_new_uint64(kecheng_kc_330b_sample_intervals[i][1]); tuple = g_variant_new_tuple(rational, 2); g_variant_builder_add_value(&gvb, tuple); } @@ -412,14 +423,18 @@ static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi) } static int dev_acquisition_start(const struct sr_dev_inst *sdi, - void *cb_data) + void *cb_data) { struct drv_context *drvc; struct dev_context *devc; + struct sr_datafeed_packet packet; + struct sr_datafeed_meta meta; + struct sr_config *src; struct sr_usb_dev_inst *usb; - const struct libusb_pollfd **pfd; - int len, ret, i; - unsigned char cmd; + GVariant *gvar, *rational[2]; + const uint64_t *si; + int stored_mqflags, req_len, buf_len, len, ret; + unsigned char buf[9]; if (sdi->status != SR_ST_ACTIVE) return SR_ERR_DEV_CLOSED; @@ -434,20 +449,84 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, /* Send header packet to the session bus. */ std_session_send_df_header(cb_data, LOG_PREFIX); - pfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx); - for (i = 0; pfd[i]; i++) { - /* Handle USB events every 100ms, for decent latency. */ - sr_source_add(pfd[i]->fd, pfd[i]->events, 100, - kecheng_kc_330b_handle_events, (void *)sdi); - /* We'll need to remove this fd later. */ - devc->usbfd[i] = pfd[i]->fd; + if (devc->data_source == DATA_SOURCE_LIVE) { + /* Force configuration. */ + kecheng_kc_330b_configure(sdi); + + if (kecheng_kc_330b_status_get(sdi, &ret) != SR_OK) + return SR_ERR; + if (ret != DEVICE_ACTIVE) { + sr_err("Device is inactive"); + /* Still continue though, since the device will + * just return 30.0 until the user hits the button + * on the device -- and then start feeding good + * samples back. */ + } + } else { + if (kecheng_kc_330b_log_info_get(sdi, buf) != SR_OK) + return SR_ERR; + stored_mqflags = buf[4] ? SR_MQFLAG_SPL_TIME_WEIGHT_S : SR_MQFLAG_SPL_TIME_WEIGHT_F; + stored_mqflags |= buf[5] ? SR_MQFLAG_SPL_FREQ_WEIGHT_C : SR_MQFLAG_SPL_FREQ_WEIGHT_A; + devc->stored_samples = (buf[7] << 8) | buf[8]; + if (devc->stored_samples == 0) { + /* Notify frontend of empty log by sending start/end packets. */ + packet.type = SR_DF_END; + sr_session_send(cb_data, &packet); + return SR_OK; + } + + if (devc->limit_samples && devc->limit_samples < devc->stored_samples) + devc->stored_samples = devc->limit_samples; + + si = kecheng_kc_330b_sample_intervals[buf[1]]; + rational[0] = g_variant_new_uint64(si[0]); + rational[1] = g_variant_new_uint64(si[1]); + gvar = g_variant_new_tuple(rational, 2); + src = sr_config_new(SR_CONF_SAMPLE_INTERVAL, gvar); + packet.type = SR_DF_META; + packet.payload = &meta; + meta.config = g_slist_append(NULL, src); + sr_session_send(devc->cb_data, &packet); + g_free(src); } - devc->usbfd[i] = -1; - cmd = CMD_GET_LIVE_SPL; - ret = libusb_bulk_transfer(usb->devhdl, EP_OUT, &cmd, 1, &len, 5); + if (!(devc->xfer = libusb_alloc_transfer(0))) + return SR_ERR; + + usb_source_add(drvc->sr_ctx, 10, + kecheng_kc_330b_handle_events, (void *)sdi); + + if (devc->data_source == DATA_SOURCE_LIVE) { + buf[0] = CMD_GET_LIVE_SPL; + buf_len = 1; + devc->state = LIVE_SPL_WAIT; + devc->last_live_request = g_get_monotonic_time() / 1000; + req_len = 3; + } else { + buf[0] = CMD_GET_LOG_DATA; + buf[1] = 0; + buf[2] = 0; + buf_len = 4; + devc->state = LOG_DATA_WAIT; + if (devc->stored_samples < 63) + buf[3] = devc->stored_samples; + else + buf[3] = 63; + /* Command ack byte + 2 bytes per sample. */ + req_len = 1 + buf[3] * 2; + } + + ret = libusb_bulk_transfer(usb->devhdl, EP_OUT, buf, buf_len, &len, 5); if (ret != 0 || len != 1) { sr_dbg("Failed to start acquisition: %s", libusb_error_name(ret)); + libusb_free_transfer(devc->xfer); + return SR_ERR; + } + + libusb_fill_bulk_transfer(devc->xfer, usb->devhdl, EP_IN, devc->buf, + req_len, kecheng_kc_330b_receive_transfer, (void *)sdi, 15); + if (libusb_submit_transfer(devc->xfer) != 0) { + libusb_free_transfer(devc->xfer); return SR_ERR; } @@ -456,12 +535,26 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) { + struct dev_context *devc; + (void)cb_data; if (sdi->status != SR_ST_ACTIVE) return SR_ERR_DEV_CLOSED; - /* TODO: stop acquisition. */ + /* Signal USB transfer handler to clean up and stop. */ + sdi->status = SR_ST_STOPPING; + + devc = sdi->priv; + if (devc->data_source == DATA_SOURCE_MEMORY && devc->config_dirty) { + /* The protocol doesn't have a command to clear stored data; + * it clears it whenever new configuration is set. That means + * we can't just configure the device any time we want when + * it's in DATA_SOURCE_MEMORY mode. The only safe time to do + * it is now, when we're sure we've pulled in all the stored + * data. */ + kecheng_kc_330b_configure(sdi); + } return SR_OK; }