X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Funi-t-dmm%2Fprotocol.c;h=94abb16bc8ae1277d07d5bf8511999803469c8e6;hb=755793e991c4d429f99254f23008bfddb89d8e00;hp=8355382fb466f6f49f5d0fa7b53d0217747a1077;hpb=f3cde30904b2bc5ac5b1782d5e65d1ec8ce60ed6;p=libsigrok.git
diff --git a/src/hardware/uni-t-dmm/protocol.c b/src/hardware/uni-t-dmm/protocol.c
index 8355382f..94abb16b 100644
--- a/src/hardware/uni-t-dmm/protocol.c
+++ b/src/hardware/uni-t-dmm/protocol.c
@@ -14,18 +14,16 @@
* 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
#include
#include
-#include "libsigrok.h"
+#include
#include "libsigrok-internal.h"
#include "protocol.h"
-extern struct dmm_info udmms[];
-
/*
* Driver for various UNI-T multimeters (and rebranded ones).
*
@@ -53,39 +51,48 @@ extern struct dmm_info udmms[];
* f1 d1 00 00 00 00 00 00 (1 data byte, 0xd1)
*/
-static void decode_packet(struct sr_dev_inst *sdi, int dmm, const uint8_t *buf,
- void *info)
+static void decode_packet(struct sr_dev_inst *sdi, const uint8_t *buf)
{
struct dev_context *devc;
+ struct dmm_info *dmm;
struct sr_datafeed_packet packet;
struct sr_datafeed_analog analog;
+ struct sr_analog_encoding encoding;
+ struct sr_analog_meaning meaning;
+ struct sr_analog_spec spec;
float floatval;
+ void *info;
int ret;
devc = sdi->priv;
- memset(&analog, 0, sizeof(struct sr_datafeed_analog));
+ 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);
/* Parse the protocol packet. */
- ret = udmms[dmm].packet_parse(buf, &floatval, &analog, info);
+ ret = dmm->packet_parse(buf, &floatval, &analog, info);
if (ret != SR_OK) {
sr_dbg("Invalid DMM packet, ignoring.");
+ g_free(info);
return;
}
/* If this DMM needs additional handling, call the resp. function. */
- if (udmms[dmm].dmm_details)
- udmms[dmm].dmm_details(&analog, info);
+ if (dmm->dmm_details)
+ dmm->dmm_details(&analog, info);
+
+ g_free(info);
/* Send a sample packet with one analog value. */
- analog.channels = sdi->channels;
+ analog.meaning->channels = sdi->channels;
analog.num_samples = 1;
analog.data = &floatval;
packet.type = SR_DF_ANALOG;
packet.payload = &analog;
- sr_session_send(devc->cb_data, &packet);
+ sr_session_send(sdi, &packet);
- /* Increase sample count. */
- devc->num_samples++;
+ sr_sw_limits_update_samples_read(&devc->limits, 1);
}
static int hid_chip_init(struct sr_dev_inst *sdi, uint16_t baudrate)
@@ -95,8 +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) {
@@ -104,18 +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 */
@@ -151,8 +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;
}
@@ -171,20 +170,22 @@ static void log_dmm_packet(const uint8_t *buf)
buf[7], buf[8], buf[9], buf[10], buf[11], buf[12], buf[13]);
}
-static int get_and_handle_data(struct sr_dev_inst *sdi, int dmm, void *info)
+static int get_and_handle_data(struct sr_dev_inst *sdi)
{
struct dev_context *devc;
+ struct dmm_info *dmm;
uint8_t buf[CHUNK_SIZE], *pbuf;
int i, ret, len, num_databytes_in_chunk;
struct sr_usb_dev_inst *usb;
devc = sdi->priv;
+ dmm = (struct dmm_info *)sdi->driver;
usb = sdi->conn;
pbuf = devc->protocol_buf;
/* On the first run, we need to init the HID chip. */
if (devc->first_run) {
- if ((ret = hid_chip_init(sdi, udmms[dmm].baudrate)) != SR_OK) {
+ if ((ret = hid_chip_init(sdi, dmm->baudrate)) != SR_OK) {
sr_err("HID chip init failed: %d.", ret);
return SR_ERR;
}
@@ -236,38 +237,39 @@ static int get_and_handle_data(struct sr_dev_inst *sdi, int dmm, void *info)
num_databytes_in_chunk = buf[0] & 0x0f;
for (i = 0; i < num_databytes_in_chunk; i++, devc->buflen++) {
pbuf[devc->buflen] = buf[1 + i];
- if ((udmms[dmm].packet_parse == sr_es519xx_19200_14b_parse) ||
- (udmms[dmm].packet_parse == sr_ut71x_parse)) {
+ 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);
}
}
/* Now look for packets in that data. */
- while ((devc->buflen - devc->bufoffset) >= udmms[dmm].packet_size) {
- if (udmms[dmm].packet_valid(pbuf + devc->bufoffset)) {
+ while ((devc->buflen - devc->bufoffset) >= dmm->packet_size) {
+ if (dmm->packet_valid(pbuf + devc->bufoffset)) {
log_dmm_packet(pbuf + devc->bufoffset);
- decode_packet(sdi, dmm, pbuf + devc->bufoffset, info);
- devc->bufoffset += udmms[dmm].packet_size;
+ decode_packet(sdi, pbuf + devc->bufoffset);
+ devc->bufoffset += dmm->packet_size;
} else {
devc->bufoffset++;
}
}
/* 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;
}
-static int receive_data(int fd, int revents, int dmm, void *info, void *cb_data)
+SR_PRIV int uni_t_dmm_receive_data(int fd, int revents, void *cb_data)
{
int ret;
struct sr_dev_inst *sdi;
struct dev_context *devc;
- int64_t time_ms;
(void)fd;
(void)revents;
@@ -275,52 +277,12 @@ static int receive_data(int fd, int revents, int dmm, void *info, void *cb_data)
sdi = cb_data;
devc = sdi->priv;
- if ((ret = get_and_handle_data(sdi, dmm, info)) != SR_OK)
+ if ((ret = get_and_handle_data(sdi)) != SR_OK)
return FALSE;
/* Abort acquisition if we acquired enough samples. */
- if (devc->limit_samples && devc->num_samples >= devc->limit_samples) {
- sr_info("Requested number of samples reached.");
- sdi->driver->dev_acquisition_stop(sdi, cb_data);
- }
-
- if (devc->limit_msec) {
- time_ms = (g_get_monotonic_time() - devc->starttime) / 1000;
- if (time_ms > (int64_t)devc->limit_msec) {
- sr_info("Requested time limit reached.");
- sdi->driver->dev_acquisition_stop(sdi, cb_data);
- return TRUE;
- }
- }
+ if (sr_sw_limits_check(&devc->limits))
+ sr_dev_acquisition_stop(sdi);
return TRUE;
}
-
-#define RECEIVE_DATA(ID_UPPER, DMM_DRIVER) \
-SR_PRIV int receive_data_##ID_UPPER(int fd, int revents, void *cb_data) { \
- struct DMM_DRIVER##_info info; \
- return receive_data(fd, revents, ID_UPPER, &info, cb_data); }
-
-/* Driver-specific receive_data() wrappers */
-RECEIVE_DATA(TECPEL_DMM_8061, fs9721)
-RECEIVE_DATA(UNI_T_UT372, ut372)
-RECEIVE_DATA(UNI_T_UT60A, fs9721)
-RECEIVE_DATA(UNI_T_UT60E, fs9721)
-RECEIVE_DATA(UNI_T_UT60G, es519xx)
-RECEIVE_DATA(UNI_T_UT61B, fs9922)
-RECEIVE_DATA(UNI_T_UT61C, fs9922)
-RECEIVE_DATA(UNI_T_UT61D, fs9922)
-RECEIVE_DATA(UNI_T_UT61E, es519xx)
-RECEIVE_DATA(UNI_T_UT71A, ut71x)
-RECEIVE_DATA(UNI_T_UT71B, ut71x)
-RECEIVE_DATA(UNI_T_UT71C, ut71x)
-RECEIVE_DATA(UNI_T_UT71D, ut71x)
-RECEIVE_DATA(UNI_T_UT71E, ut71x)
-RECEIVE_DATA(VOLTCRAFT_VC820, fs9721)
-RECEIVE_DATA(VOLTCRAFT_VC830, fs9922)
-RECEIVE_DATA(VOLTCRAFT_VC840, fs9721)
-RECEIVE_DATA(VOLTCRAFT_VC920, ut71x)
-RECEIVE_DATA(VOLTCRAFT_VC940, ut71x)
-RECEIVE_DATA(VOLTCRAFT_VC960, ut71x)
-RECEIVE_DATA(TENMA_72_7745, es519xx)
-RECEIVE_DATA(TENMA_72_7750, es519xx)