X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Funi-t-dmm%2Fprotocol.c;h=bd231160fee51633708e60bcbf64159fc296c98d;hb=565c8c354597b1e6013b4eae3ad3f1c9446668e5;hp=15cdb0c234660548e714fc2e0b343fdf41845297;hpb=dff60e3ccc5da17a0156d3072a0558732c4be94e;p=libsigrok.git diff --git a/src/hardware/uni-t-dmm/protocol.c b/src/hardware/uni-t-dmm/protocol.c index 15cdb0c2..bd231160 100644 --- a/src/hardware/uni-t-dmm/protocol.c +++ b/src/hardware/uni-t-dmm/protocol.c @@ -14,8 +14,7 @@ * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * along with this program; if not, see . */ #include @@ -67,6 +66,7 @@ static void decode_packet(struct sr_dev_inst *sdi, const uint8_t *buf) devc = sdi->priv; dmm = (struct dmm_info *)sdi->driver; + /* Note: digits/spec_digits will be overridden by the DMM parsers. */ sr_analog_init(&analog, &encoding, &meaning, &spec, 0); info = g_malloc(dmm->info_size); @@ -102,8 +102,7 @@ static int hid_chip_init(struct sr_dev_inst *sdi, uint16_t baudrate) struct sr_usb_dev_inst *usb; usb = sdi->conn; - - /* Detach kernel drivers which grabbed this device (if any). */ + if (libusb_kernel_driver_active(usb->devhdl, 0) == 1) { ret = libusb_detach_kernel_driver(usb->devhdl, 0); if (ret < 0) { @@ -111,18 +110,13 @@ static int hid_chip_init(struct sr_dev_inst *sdi, uint16_t baudrate) libusb_error_name(ret)); return SR_ERR; } - sr_dbg("Successfully detached kernel driver."); - } else { - sr_dbg("No need to detach a kernel driver."); } - /* Claim interface 0. */ if ((ret = libusb_claim_interface(usb->devhdl, 0)) < 0) { sr_err("Failed to claim interface 0: %s.", libusb_error_name(ret)); return SR_ERR; } - sr_dbg("Successfully claimed interface 0."); /* Set data for the HID feature report (e.g. baudrate). */ buf[0] = baudrate & 0xff; /* Baudrate, LSB */ @@ -158,8 +152,6 @@ static int hid_chip_init(struct sr_dev_inst *sdi, uint16_t baudrate) return SR_ERR; } - sr_dbg("Successfully sent initial HID feature report."); - return SR_OK; } @@ -172,10 +164,11 @@ static void log_8byte_chunk(const uint8_t *buf) static void log_dmm_packet(const uint8_t *buf) { - sr_dbg("DMM packet: %02x %02x %02x %02x %02x %02x %02x" - " %02x %02x %02x %02x %02x %02x %02x", - buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], - buf[7], buf[8], buf[9], buf[10], buf[11], buf[12], buf[13]); + GString *text; + + text = sr_hexdump_new(buf, 14); + sr_dbg("DMM packet: %s", text->str); + sr_hexdump_free(text); } static int get_and_handle_data(struct sr_dev_inst *sdi) @@ -246,6 +239,8 @@ static int get_and_handle_data(struct sr_dev_inst *sdi) for (i = 0; i < num_databytes_in_chunk; i++, devc->buflen++) { pbuf[devc->buflen] = buf[1 + i]; if ((dmm->packet_parse == sr_es519xx_19200_14b_parse) || + (dmm->packet_parse == sr_es519xx_19200_11b_parse) || + (dmm->packet_parse == sr_es519xx_2400_11b_parse) || (dmm->packet_parse == sr_ut71x_parse)) { /* Mask off the parity bit. */ pbuf[devc->buflen] &= ~(1 << 7); @@ -264,8 +259,8 @@ static int get_and_handle_data(struct sr_dev_inst *sdi) } /* Move remaining bytes to beginning of buffer. */ - for (i = 0; i < devc->buflen - devc->bufoffset; i++) - pbuf[i] = pbuf[devc->bufoffset + i]; + if (devc->bufoffset < devc->buflen) + memmove(pbuf, pbuf + devc->bufoffset, devc->buflen - devc->bufoffset); devc->buflen -= devc->bufoffset; return SR_OK; @@ -288,7 +283,7 @@ SR_PRIV int uni_t_dmm_receive_data(int fd, int revents, void *cb_data) /* Abort acquisition if we acquired enough samples. */ if (sr_sw_limits_check(&devc->limits)) - sdi->driver->dev_acquisition_stop(sdi); + sr_dev_acquisition_stop(sdi); return TRUE; }