Start unification of libsigrok return codes.
We have SIGROK_OK for functions calls where no errors occured. All error code names start with SIGROK_ERR and are globally unique, negative values. The value SIGROK_ERR is a generic/unspecified error code, all others, such as SIGROK_ERR_MALLOC, refer to a specific error condition. This commit renames the old SIGROK_NOK etc.
This commit is contained in:
parent
5a8fda158b
commit
e31b636df6
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@ -107,7 +107,7 @@ int send_shortcommand(int fd, uint8_t command)
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g_message("ols: sending cmd 0x%.2x", command);
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buf[0] = command;
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if(write(fd, buf, 1) != 1)
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return SIGROK_NOK;
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return SIGROK_ERR;
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return SIGROK_OK;
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}
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@ -124,7 +124,7 @@ int send_longcommand(int fd, uint8_t command, uint32_t data)
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buf[3] = data & 0xff0000 >> 16;
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buf[4] = data & 0xff000000 >> 24;
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if(write(fd, buf, 5) != 5)
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return SIGROK_NOK;
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return SIGROK_ERR;
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return SIGROK_OK;
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}
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@ -160,7 +160,7 @@ static int configure_probes(GSList *probes)
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if(stage > 3)
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{
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/* only supporting parallel mode, with up to 4 stages */
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return SIGROK_NOK;
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return SIGROK_ERR;
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}
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}
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}
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@ -275,11 +275,11 @@ static int hw_opendev(int device_index)
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struct sigrok_device_instance *sdi;
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if(!(sdi = get_sigrok_device_instance(device_instances, device_index)))
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return SIGROK_NOK;
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return SIGROK_ERR;
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sdi->serial->fd = open(sdi->serial->port, O_RDWR);
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if(sdi->serial->fd == -1)
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return SIGROK_NOK;
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return SIGROK_ERR;
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sdi->status = ST_ACTIVE;
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@ -376,7 +376,7 @@ static int set_configuration_samplerate(struct sigrok_device_instance *sdi, uint
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uint32_t divider;
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if(samplerate < samplerates.low || samplerate > samplerates.high)
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return SIGROK_ERR_BADVALUE;
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return SIGROK_ERR_SAMPLERATE;
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if(samplerate > CLOCK_RATE) {
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flag_reg |= FLAG_DEMUX;
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@ -391,7 +391,7 @@ static int set_configuration_samplerate(struct sigrok_device_instance *sdi, uint
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g_message("setting samplerate to %"PRIu64" Hz (divider %u, demux %s)", samplerate, divider,
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flag_reg & FLAG_DEMUX ? "on" : "off");
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if(send_longcommand(sdi->serial->fd, CMD_SET_DIVIDER, divider) != SIGROK_OK)
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return SIGROK_NOK;
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return SIGROK_ERR;
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cur_samplerate = samplerate;
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return SIGROK_OK;
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@ -405,10 +405,10 @@ static int hw_set_configuration(int device_index, int capability, void *value)
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uint64_t *tmp_u64;
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if(!(sdi = get_sigrok_device_instance(device_instances, device_index)))
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return SIGROK_NOK;
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return SIGROK_ERR;
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if(sdi->status != ST_ACTIVE)
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return SIGROK_NOK;
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return SIGROK_ERR;
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if(capability == HWCAP_SAMPLERATE) {
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tmp_u64 = value;
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@ -424,13 +424,13 @@ static int hw_set_configuration(int device_index, int capability, void *value)
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capture_ratio = strtol(value, NULL, 10);
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if(capture_ratio < 0 || capture_ratio > 100) {
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capture_ratio = 0;
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ret = SIGROK_NOK;
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ret = SIGROK_ERR;
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}
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else
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ret = SIGROK_OK;
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}
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else
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ret = SIGROK_NOK;
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ret = SIGROK_ERR;
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return ret;
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}
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@ -526,19 +526,19 @@ static int hw_start_acquisition(int device_index, gpointer session_device_id)
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uint32_t data;
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if(!(sdi = get_sigrok_device_instance(device_instances, device_index)))
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return SIGROK_NOK;
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return SIGROK_ERR;
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if(sdi->status != ST_ACTIVE)
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return SIGROK_NOK;
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return SIGROK_ERR;
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/* reset again */
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if(send_longcommand(sdi->serial->fd, CMD_RESET, 0) != SIGROK_OK)
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return SIGROK_NOK;
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return SIGROK_ERR;
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/* send flag register */
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data = flag_reg << 24;
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if(send_longcommand(sdi->serial->fd, CMD_SET_FLAGS, data) != SIGROK_OK)
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return SIGROK_NOK;
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return SIGROK_ERR;
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/* send sample limit and pre/post-trigger capture ratio */
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data = limit_samples / 4 << 16;
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@ -546,43 +546,43 @@ static int hw_start_acquisition(int device_index, gpointer session_device_id)
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data |= (limit_samples - (limit_samples / 100 * capture_ratio)) / 4;
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data = 0x00190019;
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if(send_longcommand(sdi->serial->fd, CMD_CAPTURE_SIZE, data) != SIGROK_OK)
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return SIGROK_NOK;
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return SIGROK_ERR;
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/* trigger masks */
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if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_0, trigger_mask[0]) != SIGROK_OK)
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return SIGROK_NOK;
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return SIGROK_ERR;
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// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_1, trigger_mask[1]) != SIGROK_OK)
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// return SIGROK_NOK;
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// return SIGROK_ERR;
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// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_2, trigger_mask[2]) != SIGROK_OK)
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// return SIGROK_NOK;
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// return SIGROK_ERR;
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// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_3, trigger_mask[3]) != SIGROK_OK)
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// return SIGROK_NOK;
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// return SIGROK_ERR;
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if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_0, trigger_value[0]) != SIGROK_OK)
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return SIGROK_NOK;
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return SIGROK_ERR;
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// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_1, trigger_value[1]) != SIGROK_OK)
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// return SIGROK_NOK;
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// return SIGROK_ERR;
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// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_2, trigger_value[2]) != SIGROK_OK)
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// return SIGROK_NOK;
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// return SIGROK_ERR;
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// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_3, trigger_value[3]) != SIGROK_OK)
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// return SIGROK_NOK;
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// return SIGROK_ERR;
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/* trigger configuration */
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/* TODO: the start flag should only be on the last used stage I think... */
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if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_0, 0x00000008) != SIGROK_OK)
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return SIGROK_NOK;
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return SIGROK_ERR;
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// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_1, 0x00000000) != SIGROK_OK)
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// return SIGROK_NOK;
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// return SIGROK_ERR;
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// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_2, 0x00000000) != SIGROK_OK)
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// return SIGROK_NOK;
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// return SIGROK_ERR;
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// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_3, 0x00000000) != SIGROK_OK)
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// return SIGROK_NOK;
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// return SIGROK_ERR;
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set_configuration_samplerate(sdi, cur_samplerate);
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/* start acquisition on the device */
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if(send_shortcommand(sdi->serial->fd, CMD_RUN) != SIGROK_OK)
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return SIGROK_NOK;
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return SIGROK_ERR;
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source_add(sdi->serial->fd, G_IO_IN, -1, receive_data, session_device_id);
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@ -590,7 +590,7 @@ static int hw_start_acquisition(int device_index, gpointer session_device_id)
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packet = g_malloc(sizeof(struct datafeed_packet));
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header = g_malloc(sizeof(struct datafeed_header));
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if(!packet || !header)
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return SIGROK_NOK;
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return SIGROK_ERR;
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packet->type = DF_HEADER;
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packet->length = sizeof(struct datafeed_header);
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packet->payload = (unsigned char *) header;
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@ -352,7 +352,7 @@ static int configure_probes(GSList *probes)
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trigger_value[stage] |= probe_bit;
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stage++;
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if(stage > NUM_TRIGGER_STAGES)
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return SIGROK_NOK;
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return SIGROK_ERR;
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}
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}
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}
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@ -450,19 +450,19 @@ static int hw_opendev(int device_index)
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if( !(sdi = sl_open_device(device_index)) ) {
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g_warning("unable to open device");
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return SIGROK_NOK;
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return SIGROK_ERR;
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}
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err = libusb_claim_interface(sdi->usb->devhdl, USB_INTERFACE);
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if(err != 0) {
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g_warning("Unable to claim interface: %d", err);
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return SIGROK_NOK;
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return SIGROK_ERR;
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}
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if(cur_samplerate == 0) {
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/* sample rate hasn't been set; default to the slowest it has */
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if(hw_set_configuration(device_index, HWCAP_SAMPLERATE, &supported_samplerates[0]) == SIGROK_NOK)
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return SIGROK_NOK;
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if(hw_set_configuration(device_index, HWCAP_SAMPLERATE, &supported_samplerates[0]) == SIGROK_ERR)
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return SIGROK_ERR;
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}
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return SIGROK_OK;
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@ -562,7 +562,7 @@ static int set_configuration_samplerate(struct sigrok_device_instance *sdi, uint
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break;
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}
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if(supported_samplerates[i] == 0)
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return SIGROK_ERR_BADVALUE;
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return SIGROK_ERR_SAMPLERATE;
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divider = (uint8_t) (48 / (float) (samplerate/1000000)) - 1;
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@ -572,7 +572,7 @@ static int set_configuration_samplerate(struct sigrok_device_instance *sdi, uint
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ret = libusb_bulk_transfer(sdi->usb->devhdl, 1 | LIBUSB_ENDPOINT_OUT, buf, 2, &result, 500);
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if(ret != 0) {
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g_warning("failed to set samplerate: %d", ret);
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return SIGROK_NOK;
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return SIGROK_ERR;
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}
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cur_samplerate = samplerate;
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@ -587,7 +587,7 @@ static int hw_set_configuration(int device_index, int capability, void *value)
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uint64_t *tmp_u64;
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if( !(sdi = get_sigrok_device_instance(device_instances, device_index)) )
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return SIGROK_NOK;
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return SIGROK_ERR;
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if(capability == HWCAP_SAMPLERATE) {
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tmp_u64 = value;
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@ -600,7 +600,7 @@ static int hw_set_configuration(int device_index, int capability, void *value)
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ret = SIGROK_OK;
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}
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else
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ret = SIGROK_NOK;
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ret = SIGROK_ERR;
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return ret;
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}
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@ -757,12 +757,12 @@ static int hw_start_acquisition(int device_index, gpointer session_device_id)
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unsigned char *buf;
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if( !(sdi = get_sigrok_device_instance(device_instances, device_index)))
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return SIGROK_NOK;
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return SIGROK_ERR;
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packet = g_malloc(sizeof(struct datafeed_packet));
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header = g_malloc(sizeof(struct datafeed_header));
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if(!packet || !header)
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return SIGROK_NOK;
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return SIGROK_ERR;
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/* start with 2K transfer, subsequently increased to 4K */
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size = 2048;
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@ -775,7 +775,7 @@ static int hw_start_acquisition(int device_index, gpointer session_device_id)
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/* TODO: free them all */
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libusb_free_transfer(transfer);
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g_free(buf);
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return SIGROK_NOK;
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return SIGROK_ERR;
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}
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size = 4096;
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}
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@ -242,7 +242,7 @@ static int configure_probes(GSList *probes)
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trigger_value[stage] |= probe_bit;
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stage++;
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if(stage > NUM_TRIGGER_STAGES)
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return SIGROK_NOK;
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return SIGROK_ERR;
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}
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}
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}
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@ -304,13 +304,13 @@ static int hw_opendev(int device_index)
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if( !(sdi = zp_open_device(device_index)) ) {
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g_warning("unable to open device");
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return SIGROK_NOK;
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return SIGROK_ERR;
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}
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err = libusb_claim_interface(sdi->usb->devhdl, USB_INTERFACE);
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if(err != 0) {
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g_warning("Unable to claim interface: %d", err);
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return SIGROK_NOK;
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return SIGROK_ERR;
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}
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analyzer_reset(sdi->usb->devhdl);
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analyzer_initialize(sdi->usb->devhdl);
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@ -331,8 +331,8 @@ static int hw_opendev(int device_index)
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if(cur_samplerate == 0) {
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/* sample rate hasn't been set; default to the slowest it has */
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if(hw_set_configuration(device_index, HWCAP_SAMPLERATE, &samplerates.low) == SIGROK_NOK)
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return SIGROK_NOK;
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if(hw_set_configuration(device_index, HWCAP_SAMPLERATE, &samplerates.low) == SIGROK_ERR)
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return SIGROK_ERR;
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}
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return SIGROK_OK;
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@ -442,7 +442,7 @@ static int hw_set_configuration(int device_index, int capability, void *value)
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uint64_t *tmp_u64;
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if( !(sdi = get_sigrok_device_instance(device_instances, device_index)) )
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return SIGROK_NOK;
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return SIGROK_ERR;
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switch (capability) {
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case HWCAP_SAMPLERATE:
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@ -457,7 +457,7 @@ static int hw_set_configuration(int device_index, int capability, void *value)
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return SIGROK_OK;
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default:
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return SIGROK_NOK;
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return SIGROK_ERR;
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}
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}
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@ -471,7 +471,7 @@ static int hw_start_acquisition(int device_index, gpointer session_device_id)
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unsigned char *buf;
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if( !(sdi = get_sigrok_device_instance(device_instances, device_index)))
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return SIGROK_NOK;
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return SIGROK_ERR;
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analyzer_start(sdi->usb->devhdl);
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g_message("Waiting for data");
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@ -493,7 +493,7 @@ static int hw_start_acquisition(int device_index, gpointer session_device_id)
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buf = g_malloc(PACKET_SIZE);
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if (!buf)
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return SIGROK_NOK;
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return SIGROK_ERR;
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analyzer_read_start(sdi->usb->devhdl);
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/* send the incoming transfer to the session bus */
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for(packet_num = 0; packet_num < (memory_size * 4 / PACKET_SIZE); packet_num++) {
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@ -57,6 +57,8 @@ static int init(struct output *o)
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char sbuf[10], wbuf[1000];
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ctx = malloc(sizeof(struct context));
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if (ctx == NULL)
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return SIGROK_ERR_MALLOC;
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o->internal = ctx;
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ctx->num_enabled_probes = 0;
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for (l = o->device->probes; l; l = l->next) {
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@ -71,7 +73,10 @@ static int init(struct output *o)
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/* TODO: Allow for configuration via o->param. */
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ctx->header = calloc(1, MAX_HEADER_LEN + 1);
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if (ctx->header == NULL)
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return SIGROK_ERR_MALLOC;
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num_probes = g_slist_length(o->device->probes);
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/* TODO: Handle num_probes == 0, too many probes, etc. */
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samplerate = *((uint64_t *) o->device->plugin->get_device_info(
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o->device->plugin_index, DI_CUR_SAMPLERATE));
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@ -97,8 +102,11 @@ static int init(struct output *o)
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b = snprintf(ctx->header, MAX_HEADER_LEN, vcd_header, "TODO: Date",
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PACKAGE_STRING, ctx->num_enabled_probes, num_probes,
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(char *)&sbuf, 1, "ns", PACKAGE, (char *)&wbuf);
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/* TODO: Handle snprintf errors. */
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ctx->prevbits = calloc(sizeof(int), num_probes);
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if (ctx->prevbits == NULL)
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return SIGROK_ERR_MALLOC;
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return 0;
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}
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@ -117,6 +125,8 @@ static int event(struct output *o, int event_type, char **data_out,
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case DF_END:
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outlen = strlen("$dumpoff\n$end\n");
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outbuf = malloc(outlen + 1);
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if (outbuf == NULL)
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return SIGROK_ERR_MALLOC;
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snprintf(outbuf, outlen, "$dumpoff\n$end\n");
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*data_out = outbuf;
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*length_out = outlen;
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@ -139,6 +149,8 @@ static int data(struct output *o, char *data_in, uint64_t length_in,
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ctx = o->internal;
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outsize = strlen(ctx->header);
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outbuf = calloc(1, outsize + 1 + 10000); // FIXME: Use realloc().
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if (outbuf == NULL)
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return SIGROK_ERR_MALLOC;
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if (ctx->header) {
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/* The header is still here, this must be the first packet. */
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strncpy(outbuf, ctx->header, outsize);
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26
session.c
26
session.c
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@ -223,27 +223,27 @@ int session_save(char *filename)
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unlink(filename);
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if( !(zipfile = zip_open(filename, ZIP_CREATE, &error)) )
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return SIGROK_NOK;
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return SIGROK_ERR;
|
||||
|
||||
/* version */
|
||||
version[0] = '1';
|
||||
if( !(src = zip_source_buffer(zipfile, version, 1, 0)) )
|
||||
return SIGROK_NOK;
|
||||
return SIGROK_ERR;
|
||||
if(zip_add(zipfile, "version", src) == -1) {
|
||||
g_message("error saving version into zipfile: %s", zip_strerror(zipfile));
|
||||
return SIGROK_NOK;
|
||||
return SIGROK_ERR;
|
||||
}
|
||||
|
||||
/* metadata */
|
||||
strcpy(metafile, "sigrok-meta-XXXXXX");
|
||||
if( (tmpfile = g_mkstemp(metafile)) == -1)
|
||||
return SIGROK_NOK;
|
||||
return SIGROK_ERR;
|
||||
close(tmpfile);
|
||||
make_metadata(metafile);
|
||||
if( !(src = zip_source_file(zipfile, metafile, 0, -1)) )
|
||||
return SIGROK_NOK;
|
||||
return SIGROK_ERR;
|
||||
if(zip_add(zipfile, "metadata", src) == -1)
|
||||
return SIGROK_NOK;
|
||||
return SIGROK_ERR;
|
||||
unlink(metafile);
|
||||
|
||||
/* raw */
|
||||
|
@ -259,26 +259,18 @@ int session_save(char *filename)
|
|||
bufcnt += DATASTORE_CHUNKSIZE;
|
||||
}
|
||||
if( !(src = zip_source_buffer(zipfile, buf, ds->num_units * ds->ds_unitsize, TRUE)) )
|
||||
return SIGROK_NOK;
|
||||
return SIGROK_ERR;
|
||||
snprintf(rawname, 15, "raw-%d", devcnt);
|
||||
if(zip_add(zipfile, rawname, src) == -1)
|
||||
return SIGROK_NOK;
|
||||
return SIGROK_ERR;
|
||||
}
|
||||
devcnt++;
|
||||
}
|
||||
|
||||
if( (ret = zip_close(zipfile)) == -1) {
|
||||
g_message("error saving zipfile: %s", zip_strerror(zipfile));
|
||||
return SIGROK_NOK;
|
||||
return SIGROK_ERR;
|
||||
}
|
||||
|
||||
return SIGROK_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
26
sigrok.h
26
sigrok.h
|
@ -27,11 +27,27 @@
|
|||
#include <glib.h>
|
||||
#include <libusb.h>
|
||||
|
||||
/* Returned status/error codes */
|
||||
#define SIGROK_STATUS_DISABLED 0
|
||||
#define SIGROK_OK 1
|
||||
#define SIGROK_NOK 2
|
||||
#define SIGROK_ERR_BADVALUE 20
|
||||
/*
|
||||
* Status/error codes returned by libsigrok functions.
|
||||
*
|
||||
* All possible return codes of libsigrok functions must be listed here.
|
||||
* Functions should never return hardcoded numbers as status, but rather
|
||||
* use these #defines instead. All error codes are negative numbers.
|
||||
*
|
||||
* The error codes are globally unique in libsigrok, i.e. if one of the
|
||||
* libsigrok function returns a "malloc error" it must be exactly the same
|
||||
* return value as used for all other functions to indicate "malloc error".
|
||||
* There must be no functions which indicate two different errors via the
|
||||
* same return code.
|
||||
*
|
||||
* Also, for compatibility reasons, no defined return codes are ever removed
|
||||
* or reused for different #defines later. You can only add new #defines and
|
||||
* return codes, but never remove or redefine existing ones.
|
||||
*/
|
||||
#define SIGROK_OK 0 /* No error */
|
||||
#define SIGROK_ERR -1 /* Generic/unspecified error */
|
||||
#define SIGROK_ERR_MALLOC -2 /* Malloc/calloc/realloc error */
|
||||
#define SIGROK_ERR_SAMPLERATE -3 /* Incorrect samplerate */
|
||||
|
||||
/* Handy little macros */
|
||||
#define KHZ(n) (n * 1000)
|
||||
|
|
Loading…
Reference in New Issue