X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fhantek-6xxx%2Fapi.c;h=349b557b7eaa91d3937548ea21bad0de3097e475;hb=8dc423b033678508ec08d7c473d883d4b3a58178;hp=5c2a478ad904c5870e715181f4840ab2a817fd89;hpb=15a5bfe4815f9991a9bb532c05d6244a1818a0e4;p=libsigrok.git diff --git a/src/hardware/hantek-6xxx/api.c b/src/hardware/hantek-6xxx/api.c index 5c2a478a..349b557b 100644 --- a/src/hardware/hantek-6xxx/api.c +++ b/src/hardware/hantek-6xxx/api.c @@ -18,6 +18,7 @@ */ #include +#include #include "protocol.h" /* Max time in ms before we want to check on USB events */ @@ -50,7 +51,11 @@ static const char *channel_names[] = { "CH1", "CH2", }; -static const char *coupling[] = { +static const char *dc_coupling[] = { + "DC", "DC", +}; + +static const char *acdc_coupling[] = { "AC", "DC", }; @@ -58,10 +63,12 @@ static const struct hantek_6xxx_profile dev_profiles[] = { { 0x04b4, 0x6022, 0x04b5, 0x6022, "Hantek", "6022BE", "hantek-6022be.fw", + dc_coupling, ARRAY_SIZE(dc_coupling), FALSE, }, { 0x8102, 0x8102, 0x1D50, 0x608E, "Sainsmart", "DDS120", "sainsmart-dds120.fw", + acdc_coupling, ARRAY_SIZE(acdc_coupling), TRUE, }, ALL_ZERO }; @@ -106,6 +113,8 @@ static struct sr_dev_inst *hantek_6xxx_dev_new(const struct hantek_6xxx_profile devc->voltage[i] = DEFAULT_VOLTAGE; devc->coupling[i] = DEFAULT_COUPLING; } + devc->coupling_vals = prof->coupling_vals; + devc->coupling_tab_size = prof->coupling_tab_size; devc->sample_buf = NULL; devc->sample_buf_write = 0; @@ -211,7 +220,7 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options) usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); prof = NULL; - for (j = 0; j < (int)ARRAY_SIZE(dev_profiles); j++) { + for (j = 0; dev_profiles[j].orig_vid; j++) { if (des.idVendor == dev_profiles[j].orig_vid && des.idProduct == dev_profiles[j].orig_pid) { /* Device matches the pre-firmware profile. */ @@ -369,7 +378,7 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s *data = g_variant_new("(tt)", vdiv[0], vdiv[1]); break; case SR_CONF_COUPLING: - *data = g_variant_new_string(coupling[devc->coupling[ch_idx]]); + *data = g_variant_new_string(devc->coupling_vals[devc->coupling[ch_idx]]); break; } } @@ -432,13 +441,13 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd break; case SR_CONF_COUPLING: tmp_str = g_variant_get_string(data, NULL); - for (i = 0; coupling[i]; i++) { - if (!strcmp(tmp_str, coupling[i])) { + for (i = 0; i < devc->coupling_tab_size; i++) { + if (!strcmp(tmp_str, devc->coupling_vals[i])) { devc->coupling[ch_idx] = i; break; } } - if (coupling[i] == 0) + if (i == devc->coupling_tab_size) ret = SR_ERR_ARG; break; default: @@ -457,6 +466,7 @@ static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst * GVariantBuilder gvb; unsigned int i; GVariant *gvar; + struct dev_context *devc = NULL; if (key == SR_CONF_SCAN_OPTIONS) { *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, @@ -468,8 +478,8 @@ static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst * return SR_OK; } - if (!sdi) - return SR_ERR_ARG; + if (sdi) + devc = sdi->priv; if (!cg) { switch (key) { @@ -495,7 +505,9 @@ static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst * devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(uint32_t)); break; case SR_CONF_COUPLING: - *data = g_variant_new_strv(coupling, ARRAY_SIZE(coupling)); + if (!devc) + return SR_ERR_NA; + *data = g_variant_new_strv(devc->coupling_vals, devc->coupling_tab_size); break; case SR_CONF_VDIV: g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); @@ -519,7 +531,7 @@ static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst * static uint32_t data_amount(const struct sr_dev_inst *sdi) { struct dev_context *devc = sdi->priv; - uint32_t data_left; + uint32_t data_left, data_left_2, i; int32_t time_left; if (devc->limit_msec) { @@ -531,66 +543,77 @@ static uint32_t data_amount(const struct sr_dev_inst *sdi) data_left = devc->samplerate * NUM_CHANNELS; } - data_left += MIN_PACKET_SIZE; /* Driver does not handle small buffers. */ + /* Round up to nearest power of two. */ + for (i = MIN_PACKET_SIZE; i < data_left; i *= 2) + ; + data_left_2 = i; - sr_spew("data_amount %u", data_left); + sr_spew("data_amount: %u (rounded to power of 2: %u)", data_left, data_left_2); - return data_left; + return data_left_2; } static void send_chunk(struct sr_dev_inst *sdi, unsigned char *buf, int num_samples) { struct sr_datafeed_packet packet; - struct sr_datafeed_analog_old analog; + struct sr_datafeed_analog analog; + struct sr_analog_encoding encoding; + struct sr_analog_meaning meaning; + struct sr_analog_spec spec; struct dev_context *devc = sdi->priv; - int num_channels, data_offset, i; + GSList *channels = devc->enabled_channels; - const float ch1_bit = RANGE(0) / 255; - const float ch2_bit = RANGE(1) / 255; - const float ch1_center = RANGE(0) / 2; - const float ch2_center = RANGE(1) / 2; + const float ch_bit[] = { RANGE(0) / 255, RANGE(1) / 255 }; + const float ch_center[] = { RANGE(0) / 2, RANGE(1) / 2 }; - const gboolean ch1_ena = !!devc->ch_enabled[0]; - const gboolean ch2_ena = !!devc->ch_enabled[1]; + sr_analog_init(&analog, &encoding, &meaning, &spec, 0); - num_channels = (ch1_ena && ch2_ena) ? 2 : 1; - packet.type = SR_DF_ANALOG_OLD; + packet.type = SR_DF_ANALOG; packet.payload = &analog; - analog.channels = devc->enabled_channels; analog.num_samples = num_samples; - analog.mq = SR_MQ_VOLTAGE; - analog.unit = SR_UNIT_VOLT; - analog.mqflags = 0; + analog.meaning->mq = SR_MQ_VOLTAGE; + analog.meaning->unit = SR_UNIT_VOLT; + analog.meaning->mqflags = 0; - analog.data = g_try_malloc(analog.num_samples * sizeof(float) * num_channels); + analog.data = g_try_malloc(num_samples * sizeof(float)); if (!analog.data) { sr_err("Analog data buffer malloc failed."); devc->dev_state = STOPPING; return; } - data_offset = 0; - for (i = 0; i < num_samples; i++) { - /* - * The device always sends data for both channels. If a channel - * is disabled, it contains a copy of the enabled channel's - * data. However, we only send the requested channels to - * the bus. - * - * Voltage values are encoded as a value 0-255, where the - * value is a point in the range represented by the vdiv - * setting. There are 10 vertical divs, so e.g. 500mV/div - * represents 5V peak-to-peak where 0 = -2.5V and 255 = +2.5V. - */ - if (ch1_ena) - analog.data[data_offset++] = (ch1_bit * *(buf + i * 2) - ch1_center); - if (ch2_ena) - analog.data[data_offset++] = (ch2_bit * *(buf + i * 2 + 1) - ch2_center); - } + for (int ch = 0; ch < 2; ch++) { + if (!devc->ch_enabled[ch]) + continue; + + float vdivlog = log10f(ch_bit[ch]); + int digits = -(int)vdivlog + (vdivlog < 0.0); + analog.encoding->digits = digits; + analog.spec->spec_digits = digits; + analog.meaning->channels = g_slist_append(NULL, channels->data); + + for (int i = 0; i < num_samples; i++) { + /* + * The device always sends data for both channels. If a channel + * is disabled, it contains a copy of the enabled channel's + * data. However, we only send the requested channels to + * the bus. + * + * Voltage values are encoded as a value 0-255, where the + * value is a point in the range represented by the vdiv + * setting. There are 10 vertical divs, so e.g. 500mV/div + * represents 5V peak-to-peak where 0 = -2.5V and 255 = +2.5V. + */ + ((float *)analog.data)[i] = ch_bit[ch] * *(buf + i * 2 + ch) - ch_center[ch]; + } + + sr_session_send(sdi, &packet); + g_slist_free(analog.meaning->channels); - sr_session_send(sdi, &packet); + channels = channels->next; + } g_free(analog.data); } @@ -739,7 +762,7 @@ static int handle_event(int fd, int revents, void *cb_data) */ usb_source_remove(sdi->session, drvc->sr_ctx); - std_session_send_df_end(sdi, LOG_PREFIX); + std_session_send_df_end(sdi); devc->dev_state = IDLE; @@ -768,7 +791,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi) if (hantek_6xxx_init(sdi) != SR_OK) return SR_ERR; - std_session_send_df_header(sdi, LOG_PREFIX); + std_session_send_df_header(sdi); devc->samp_received = 0; devc->dev_state = FLUSH;