X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fsaleae-logic16%2Fprotocol.c;h=8b430d90c01e91e5d62ce2c87af853faaa19376f;hb=a4e435eb49c1fa30c31d5851b404001324cafe33;hp=288c7de5d2f5217640d310149152e4555fdc764d;hpb=863357fb1091489d5ecb4257bcb879b3beb79734;p=libsigrok.git diff --git a/hardware/saleae-logic16/protocol.c b/hardware/saleae-logic16/protocol.c index 288c7de5..8b430d90 100644 --- a/hardware/saleae-logic16/protocol.c +++ b/hardware/saleae-logic16/protocol.c @@ -632,9 +632,8 @@ static void resubmit_transfer(struct libusb_transfer *transfer) sr_err("%s: %s", __func__, libusb_error_name(ret)); } -static size_t convert_sample_data_16(struct dev_context *devc, - uint8_t *dest, size_t destcnt, - const uint8_t *src, size_t srccnt) +static size_t convert_sample_data(struct dev_context *devc, + uint8_t *dest, size_t destcnt, const uint8_t *src, size_t srccnt) { uint16_t *channel_data; int i, cur_channel; @@ -675,60 +674,6 @@ static size_t convert_sample_data_16(struct dev_context *devc, return ret; } -static size_t convert_sample_data_8(struct dev_context *devc, - uint8_t *dest, size_t destcnt, - const uint8_t *src, size_t srccnt) -{ - uint8_t *channel_data; - int i, cur_channel; - size_t ret = 0; - uint16_t sample; - uint8_t channel_mask; - - srccnt /= 2; - - channel_data = (uint8_t *)devc->channel_data; - cur_channel = devc->cur_channel; - - while (srccnt--) { - sample = src[0] | (src[1] << 8); - src += 2; - - channel_mask = devc->channel_masks[cur_channel]; - - for (i = 15; i >= 0; --i, sample >>= 1) - if (sample & 1) - channel_data[i] |= channel_mask; - - if (++cur_channel == devc->num_channels) { - cur_channel = 0; - if (destcnt < 16) { - sr_err("Conversion buffer too small!"); - break; - } - memcpy(dest, channel_data, 16); - memset(channel_data, 0, 16); - dest += 16; - ret += 16; - destcnt -= 16; - } - } - - devc->cur_channel = cur_channel; - - return ret; -} - -static size_t convert_sample_data(struct dev_context *devc, - uint8_t *dest, size_t destcnt, - const uint8_t *src, size_t srccnt, - int unitsize) -{ - return (unitsize == 2 ? - convert_sample_data_16(devc, dest, destcnt, src, srccnt) : - convert_sample_data_8(devc, dest, destcnt, src, srccnt)); -} - SR_PRIV void logic16_receive_transfer(struct libusb_transfer *transfer) { gboolean packet_has_error = FALSE; @@ -791,8 +736,7 @@ SR_PRIV void logic16_receive_transfer(struct libusb_transfer *transfer) } new_samples = convert_sample_data(devc, devc->convbuffer, - devc->convbuffer_size, transfer->buffer, - transfer->actual_length, devc->unitsize); + devc->convbuffer_size, transfer->buffer, transfer->actual_length); if (new_samples > 0) { if (devc->trigger_fired) { @@ -802,14 +746,14 @@ SR_PRIV void logic16_receive_transfer(struct libusb_transfer *transfer) if (devc->limit_samples && new_samples > devc->limit_samples - devc->sent_samples) new_samples = devc->limit_samples - devc->sent_samples; - logic.length = new_samples * devc->unitsize; - logic.unitsize = devc->unitsize; + logic.length = new_samples * 2; + logic.unitsize = 2; logic.data = devc->convbuffer; sr_session_send(devc->cb_data, &packet); devc->sent_samples += new_samples; } else { trigger_offset = soft_trigger_logic_check(devc->stl, - devc->convbuffer, new_samples * devc->unitsize); + devc->convbuffer, new_samples * 2); if (trigger_offset > -1) { packet.type = SR_DF_LOGIC; packet.payload = &logic; @@ -817,9 +761,9 @@ SR_PRIV void logic16_receive_transfer(struct libusb_transfer *transfer) if (devc->limit_samples && num_samples > devc->limit_samples - devc->sent_samples) num_samples = devc->limit_samples - devc->sent_samples; - logic.length = num_samples * devc->unitsize; - logic.unitsize = devc->unitsize; - logic.data = devc->convbuffer + trigger_offset * devc->unitsize; + logic.length = num_samples * 2; + logic.unitsize = 2; + logic.data = devc->convbuffer + trigger_offset * 2; sr_session_send(devc->cb_data, &packet); devc->sent_samples += num_samples;