tekpower-dmm: Cosmetics, coding-style, consistency fixes.
This commit is contained in:
Uwe Hermann
parent
7dc55d930f
commit
bbabddbd64
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@ -189,9 +189,9 @@ if test "x$HW_RADIOSHACK_DMM" = "xyes"; then
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fi
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AC_ARG_ENABLE(tekpower-dmm, AC_HELP_STRING([--enable-tekpower-dmm],
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[enable Tekpower DMM support. [default=yes]]),
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[HW_TEKPOWER_DMM="$enableval"],
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[HW_TEKPOWER_DMM=yes])
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[enable TekPower DMM support [default=yes]]),
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[HW_TEKPOWER_DMM="$enableval"],
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[HW_TEKPOWER_DMM=yes])
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AM_CONDITIONAL(HW_TEKPOWER_DMM, test x$HW_TEKPOWER_DMM = xyes)
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if test "x$HW_TEKPOWER_DMM" = "xyes"; then
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AC_DEFINE(HAVE_HW_TEKPOWER_DMM, 1, [TekPower DMM support])
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@ -380,7 +380,7 @@ echo " - Hantek DSO...................... $HW_HANTEK_DSO"
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echo " - Link MSO-19..................... $LA_LINK_MSO19"
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echo " - Openbench Logic Sniffer......... $LA_OLS"
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echo " - Radioshack DMM.................. $HW_RADIOSHACK_DMM"
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echo " - Tekpower DMM.................... $HW_TEKPOWER_DMM"
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echo " - TekPower DMM.................... $HW_TEKPOWER_DMM"
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echo " - ZEROPLUS Logic Cube............. $LA_ZEROPLUS_LOGIC_CUBE"
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echo
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@ -19,14 +19,14 @@
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*/
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#include <glib.h>
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#include "libsigrok.h"
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#include "libsigrok-internal.h"
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#include "protocol.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <string.h>
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#include <errno.h>
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#include "libsigrok.h"
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#include "libsigrok-internal.h"
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#include "protocol.h"
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static const int hwopts[] = {
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SR_HWOPT_CONN,
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@ -46,8 +46,8 @@ static const char *probe_names[] = {
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NULL,
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};
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SR_PRIV struct sr_dev_driver tekpower_driver_info;
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static struct sr_dev_driver *di = &tekpower_driver_info;
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SR_PRIV struct sr_dev_driver tekpower_dmm_driver_info;
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static struct sr_dev_driver *di = &tekpower_dmm_driver_info;
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/* Properly close and free all devices. */
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static int clear_instances(void)
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@ -80,8 +80,8 @@ static int hw_init(void)
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struct drv_context *drvc;
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if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
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sr_err("driver context malloc failed.");
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return SR_ERR;
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sr_err("Driver context malloc failed.");
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return SR_ERR_MALLOC;
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}
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di->priv = drvc;
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@ -89,7 +89,7 @@ static int hw_init(void)
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return SR_OK;
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}
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static int serial_readline(int fd, char **buf, size_t *buflen,
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static int serial_readline(int fd, char **buf, int *buflen,
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uint64_t timeout_ms)
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{
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uint64_t start;
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@ -100,7 +100,7 @@ static int serial_readline(int fd, char **buf, size_t *buflen,
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maxlen = *buflen;
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*buflen = len = 0;
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while(1) {
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while (1) {
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len = maxlen - *buflen - 1;
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if (len < 1)
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break;
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@ -129,52 +129,49 @@ static GSList *lcd14_scan(const char *conn, const char *serialcomm)
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struct drv_context *drvc;
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struct dev_context *devc;
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struct sr_probe *probe;
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struct lcd14_packet *packet;
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GSList *devices;
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int fd, retry;
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size_t len;
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int i, len, fd, retry, good_packets = 0, dropped, ret;
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char buf[128], *b;
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if ((fd = serial_open(conn, O_RDONLY|O_NONBLOCK)) == -1) {
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sr_err("unable to open %s: %s",
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conn, strerror(errno));
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if ((fd = serial_open(conn, O_RDONLY | O_NONBLOCK)) == -1) {
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sr_err("Unable to open %s: %s.", conn, strerror(errno));
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return NULL;
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}
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if (serial_set_paramstr(fd, serialcomm) != SR_OK) {
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sr_err("unable to set serial parameters");
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if ((ret = serial_set_paramstr(fd, serialcomm)) != SR_OK) {
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sr_err("Unable to set serial parameters: %d", ret);
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return NULL;
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}
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sr_info("probing port %s readonly", conn);
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sr_info("Probing port %s readonly.", conn);
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drvc = di->priv;
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b = buf;
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retry = 0;
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devices = NULL;
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serial_flush(fd);
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/* There's no way to get an ID from the multimeter. It just sends data
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* periodically, so the best we can do is check if the packets match the
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* expected format. */
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while (!devices && retry < 3)
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{
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size_t i;
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size_t good_packets = 0;
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/*
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* There's no way to get an ID from the multimeter. It just sends data
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* periodically, so the best we can do is check if the packets match
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* the expected format.
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*/
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while (!devices && retry < 3) {
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retry++;
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/* Let's get a bit of data and see if we can find a packet */
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/* Let's get a bit of data and see if we can find a packet. */
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len = sizeof(buf);
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serial_readline(fd, &b, &len, 500);
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if( (len == 0) || (len < LCD14_PACKET_SIZE) ) {
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/* Not enough data received, is the DMM connected ? */
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if ((len == 0) || (len < LCD14_PACKET_SIZE)) {
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/* Not enough data received, is the DMM connected? */
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continue;
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}
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/* Let's treat our buffer like a stream, and find any
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* valid packets */
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for( i = 0; i < len - LCD14_PACKET_SIZE + 1;
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/* don't increment i here */ )
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{
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const lcd14_packet *packet = (void *)(&buf[i]);
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if( !lcd14_is_packet_valid(packet, NULL) ){
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for (i = 0; i < len - LCD14_PACKET_SIZE + 1;) {
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packet = (void *)(&buf[i]);
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if (!lcd14_is_packet_valid(packet, NULL)) {
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i++;
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continue;
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}
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@ -182,27 +179,28 @@ static GSList *lcd14_scan(const char *conn, const char *serialcomm)
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i += LCD14_PACKET_SIZE;
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}
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/* If we dropped more than two packets worth of data, something
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* is wrong */
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size_t dropped = len - (good_packets * LCD14_PACKET_SIZE);
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if(dropped > 2 * LCD14_PACKET_SIZE)
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/*
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* If we dropped more than two packets worth of data,
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* something is wrong.
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*/
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dropped = len - (good_packets * LCD14_PACKET_SIZE);
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if (dropped > 2 * LCD14_PACKET_SIZE)
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continue;
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/* Let's see if we have anything good */
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/* Let's see if we have anything good. */
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if (good_packets == 0)
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continue;
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sr_info("found device on port %s", conn);
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sr_info("Found device on port %s.", conn);
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if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "TekPower",
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"TP4000ZC", "")))
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return NULL;
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if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
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sr_dbg("failed to malloc devc");
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sr_err("Device context malloc failed.");
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return NULL;
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}
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/* devc->profile = RADIOSHACK_22_812; */
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devc->serial = sr_serial_dev_inst_new(conn, -1);
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devc->serialcomm = g_strdup(serialcomm);
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@ -245,7 +243,7 @@ static GSList *hw_scan(GSList *options)
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/* Use the provided comm specs. */
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devices = lcd14_scan(conn, serialcomm);
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} else {
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/* Then try the default 2400 8n1 */
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/* Try the default 2400/8n1. */
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devices = lcd14_scan(conn, "2400/8n1");
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}
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@ -263,6 +261,7 @@ static GSList *hw_dev_list(void)
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static int hw_dev_open(struct sr_dev_inst *sdi)
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{
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int ret;
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struct dev_context *devc;
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if (!(devc = sdi->priv)) {
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@ -272,12 +271,13 @@ static int hw_dev_open(struct sr_dev_inst *sdi)
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devc->serial->fd = serial_open(devc->serial->port, O_RDONLY);
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if (devc->serial->fd == -1) {
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sr_err("Couldn't open serial port '%s'.",
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devc->serial->port);
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sr_err("Couldn't open serial port '%s'.", devc->serial->port);
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return SR_ERR;
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}
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if (serial_set_paramstr(devc->serial->fd, devc->serialcomm) != SR_OK) {
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sr_err("unable to set serial parameters");
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ret = serial_set_paramstr(devc->serial->fd, devc->serialcomm);
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if (ret != SR_OK) {
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sr_err("Unable to set serial parameters: %d.", ret);
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return SR_ERR;
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}
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sdi->status = SR_ST_ACTIVE;
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@ -311,9 +311,9 @@ static int hw_cleanup(void)
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}
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static int hw_info_get(int info_id, const void **data,
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const struct sr_dev_inst *sdi)
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const struct sr_dev_inst *sdi)
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{
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(void)sdi; /* Does nothing. prevents "unused parameter" warning */
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(void)sdi;
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switch (info_id) {
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case SR_DI_HWOPTS:
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@ -336,7 +336,7 @@ static int hw_info_get(int info_id, const void **data,
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}
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static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
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const void *value)
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const void *value)
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{
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struct dev_context *devc;
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@ -364,7 +364,7 @@ static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
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}
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static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
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void *cb_data)
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void *cb_data)
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{
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struct sr_datafeed_packet packet;
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struct sr_datafeed_header header;
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@ -380,9 +380,11 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
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devc->cb_data = cb_data;
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/* Reset the number of samples to take. If we've already collected our
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/*
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* Reset the number of samples to take. If we've already collected our
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* quota, but we start a new session, and don't reset this, we'll just
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* quit without aquiring any new samples */
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* quit without acquiring any new samples.
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*/
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devc->num_samples = 0;
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/* Send header packet to the session bus. */
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@ -400,15 +402,15 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
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meta.num_probes = 1;
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sr_session_send(devc->cb_data, &packet);
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/* Poll every 100ms, or whenever some data comes in. */
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/* Poll every 50ms, or whenever some data comes in. */
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sr_source_add(devc->serial->fd, G_IO_IN, 50,
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lcd14_receive_data, (void *)sdi );
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tekpower_dmm_receive_data, (void *)sdi);
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return SR_OK;
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}
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static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
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void *cb_data)
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void *cb_data)
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{
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struct sr_datafeed_packet packet;
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struct dev_context *devc;
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@ -434,9 +436,9 @@ static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
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return SR_OK;
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}
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SR_PRIV struct sr_dev_driver tekpower_driver_info = {
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SR_PRIV struct sr_dev_driver tekpower_dmm_driver_info = {
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.name = "tekpower-dmm",
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.longname = "TekPower/Digitek 4000ZC",
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.longname = "TekPower/Digitek TP4000ZC/DT4000ZC DMM",
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.api_version = 1,
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.init = hw_init,
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.cleanup = hw_cleanup,
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@ -18,129 +18,129 @@
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*/
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#include <glib.h>
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#include "libsigrok.h"
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#include "libsigrok-internal.h"
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#include "config.h"
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#include "protocol.h"
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#include <stdlib.h>
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#include <math.h>
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#include <string.h>
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#include <errno.h>
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#include "libsigrok.h"
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#include "libsigrok-internal.h"
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#include "protocol.h"
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static gboolean lcd14_is_sync_valid(const lcd14_packet *packet)
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static gboolean lcd14_is_sync_valid(const struct lcd14_packet *packet)
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{
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size_t i;
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/* Check the syncronization nibbles, and make sure they all match */
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for(i = 0; i < LCD14_PACKET_SIZE; i++)
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{
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uint8_t sync = (packet->raw[i] & LCD14_SYNC_MASK) >> 4;
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if(sync != (i+1) )
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int i;
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uint8_t sync;
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/* Check the syncronization nibbles, and make sure they all match. */
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for (i = 0; i < LCD14_PACKET_SIZE; i++) {
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sync = (packet->raw[i] & LCD14_SYNC_MASK) >> 4;
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if (sync != (i + 1))
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return FALSE;
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}
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return TRUE;
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}
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static gboolean lcd14_is_selection_good(const lcd14_data *data)
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static gboolean lcd14_is_selection_good(const struct lcd14_data *data)
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{
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int n_postfix = 0;
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int n_type = 0;
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/* Does the packet have more than one multiplier ? */
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if(data->flags & LCD14_NANO)
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int n_postfix = 0, n_type = 0;
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/* Does the packet have more than one multiplier? */
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if (data->flags & LCD14_NANO)
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n_postfix++;
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if(data->flags & LCD14_MICRO)
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if (data->flags & LCD14_MICRO)
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n_postfix++;
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if(data->flags & LCD14_MILLI)
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if (data->flags & LCD14_MILLI)
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n_postfix++;
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if(data->flags & LCD14_KILO)
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if (data->flags & LCD14_KILO)
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n_postfix++;
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if(data->flags & LCD14_MEGA)
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if (data->flags & LCD14_MEGA)
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n_postfix++;
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if(n_postfix > 1)
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if (n_postfix > 1)
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return FALSE;
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/* Does the packet "measure" more than one type of value ?*/
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if(data->flags & LCD14_HZ)
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/* Does the packet "measure" more than one type of value? */
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if (data->flags & LCD14_HZ)
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n_type++;
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if(data->flags & LCD14_OHM)
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if (data->flags & LCD14_OHM)
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n_type++;
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if(data->flags & LCD14_FARAD)
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if (data->flags & LCD14_FARAD)
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n_type++;
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if(data->flags & LCD14_AMP)
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if (data->flags & LCD14_AMP)
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n_type++;
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if(data->flags & LCD14_VOLT)
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if (data->flags & LCD14_VOLT)
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n_type++;
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if(data->flags & LCD14_DUTY)
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if (data->flags & LCD14_DUTY)
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n_type++;
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if(data->flags & LCD14_CELSIUS)
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if (data->flags & LCD14_CELSIUS)
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n_type++;
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/* Do not test for hFE. hFE is not implemented and always '1' */
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if(n_type > 1)
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/* Do not test for hFE. hFE is not implemented and always '1'. */
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if (n_type > 1)
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return FALSE;
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/* Both AC and DC ? */
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if( (data->flags & LCD14_AC) && (data->flags & LCD14_DC) )
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/* Both AC and DC? */
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if ((data->flags & LCD14_AC) && (data->flags & LCD14_DC))
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return FALSE;
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/* OK, no duplicates */
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/* OK, no duplicates. */
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return TRUE;
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}
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/* We "cook" a raw lcd14_pcaket into a more pallatable form, lcd14_data */
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static void lcd14_cook_raw(const lcd14_packet *packet, lcd14_data * data)
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/* We "cook" a raw lcd14_pcaket into a more pallatable form, lcd14_data. */
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static void lcd14_cook_raw(const struct lcd14_packet *packet,
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struct lcd14_data *data)
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{
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size_t i;
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int i, j;
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/* Get the digits out */
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for(i = 0; i < 4; i++)
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{
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size_t j = (i << 1) + 1;
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data->digit[i] = ( (packet->raw[j] & ~LCD14_SYNC_MASK) << 4 ) |
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( (packet->raw[j+1] & ~LCD14_SYNC_MASK) );
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/* Get the digits out. */
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for (i = 0; i < 4; i++) {
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j = (i << 1) + 1;
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data->digit[i] = ((packet->raw[j] & ~LCD14_SYNC_MASK) << 4) |
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((packet->raw[j + 1] & ~LCD14_SYNC_MASK));
|
||||
}
|
||||
|
||||
/* Now extract the flags */
|
||||
data->flags = ( (packet->raw[0] & ~LCD14_SYNC_MASK) << 20) |
|
||||
( (packet->raw[9] & ~LCD14_SYNC_MASK) << 16) |
|
||||
( (packet->raw[10]& ~LCD14_SYNC_MASK) << 12) |
|
||||
( (packet->raw[11]& ~LCD14_SYNC_MASK) << 8) |
|
||||
( (packet->raw[12]& ~LCD14_SYNC_MASK) << 4) |
|
||||
( (packet->raw[13]& ~LCD14_SYNC_MASK) );
|
||||
/* Now extract the flags. */
|
||||
data->flags = ((packet->raw[0] & ~LCD14_SYNC_MASK) << 20) |
|
||||
((packet->raw[9] & ~LCD14_SYNC_MASK) << 16) |
|
||||
((packet->raw[10] & ~LCD14_SYNC_MASK) << 12) |
|
||||
((packet->raw[11] & ~LCD14_SYNC_MASK) << 8) |
|
||||
((packet->raw[12] & ~LCD14_SYNC_MASK) << 4) |
|
||||
((packet->raw[13] & ~LCD14_SYNC_MASK));
|
||||
}
|
||||
|
||||
|
||||
/* Since the DMM does not identify itslef in any way shape, or form, we really
|
||||
/*
|
||||
* Since the DMM does not identify itself in any way shape, or form, we really
|
||||
* don't know for sure who is sending the data. We must use every possible
|
||||
* check to filter out bad packets, especially since detection mechanism depends
|
||||
* on how well we can filter out bad packets packets */
|
||||
SR_PRIV gboolean lcd14_is_packet_valid(const lcd14_packet *packet,
|
||||
lcd14_data *data)
|
||||
* check to filter out bad packets, especially since the detection mechanism
|
||||
* depends on how well we can filter out bad packets packets.
|
||||
*/
|
||||
SR_PRIV gboolean lcd14_is_packet_valid(const struct lcd14_packet *packet,
|
||||
struct lcd14_data *data)
|
||||
{
|
||||
/* Callers not interested in the data, pass NULL */
|
||||
lcd14_data placeholder;
|
||||
if(data == NULL)
|
||||
struct lcd14_data placeholder;
|
||||
|
||||
/* Callers not interested in the data, pass NULL. */
|
||||
if (data == NULL)
|
||||
data = &placeholder;
|
||||
/* We start with our syncronization nibbles, then move to more advanced
|
||||
* checks */
|
||||
if(!lcd14_is_sync_valid(packet))
|
||||
|
||||
if (!lcd14_is_sync_valid(packet))
|
||||
return FALSE;
|
||||
|
||||
lcd14_cook_raw(packet, data);
|
||||
|
||||
if(!lcd14_is_selection_good(data))
|
||||
if (!lcd14_is_selection_good(data))
|
||||
return FALSE;
|
||||
|
||||
/* Made it here, huh? Then this looks to be a valid packet */
|
||||
/* If we made it here, this looks to be a valid packet. */
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static uint8_t lcd14_to_digit(uint8_t raw_digit)
|
||||
{
|
||||
/* Take out the decimal point, so we can use a simple switch() */
|
||||
/* Take out the decimal point, so we can use a simple switch(). */
|
||||
raw_digit &= ~LCD14_DP_MASK;
|
||||
switch(raw_digit)
|
||||
{
|
||||
|
||||
switch (raw_digit) {
|
||||
case 0x00:
|
||||
case LCD14_LCD_0:
|
||||
return 0;
|
||||
|
|
@ -167,178 +167,169 @@ static uint8_t lcd14_to_digit(uint8_t raw_digit)
|
|||
}
|
||||
}
|
||||
|
||||
static double lcdraw_to_double(lcd14_data *data)
|
||||
/* Get a raw floating point value from the data. */
|
||||
static double lcdraw_to_double(struct lcd14_data *data)
|
||||
{
|
||||
/* *********************************************************************
|
||||
* Get a raw floating point value from the data
|
||||
**********************************************************************/
|
||||
double rawval;
|
||||
double multiplier = 1;
|
||||
uint8_t digit;
|
||||
uint8_t digit, raw_digit;
|
||||
gboolean dp_reached = FALSE;
|
||||
int i;
|
||||
|
||||
/* We have 4 digits, and we start from the most significant */
|
||||
for(i = 0; i < 4; i++)
|
||||
{
|
||||
uint8_t raw_digit = data->digit[i];
|
||||
/* We have 4 digits, and we start from the most significant. */
|
||||
for (i = 0; i < 4; i++) {
|
||||
raw_digit = data->digit[i];
|
||||
digit = lcd14_to_digit(raw_digit);
|
||||
if(digit == LCD14_LCD_INVALID) {
|
||||
if (digit == LCD14_LCD_INVALID) {
|
||||
rawval = NAN;
|
||||
break;
|
||||
}
|
||||
/* Digit 1 does not have a decimal point. Instead, the decimal
|
||||
* point is used to indicate MAX, so we must avoid testing it */
|
||||
if( (i > 0) && (raw_digit & LCD14_DP_MASK) )
|
||||
|
||||
/*
|
||||
* Digit 1 does not have a decimal point. Instead, the decimal
|
||||
* point is used to indicate MAX, so we must avoid testing it.
|
||||
*/
|
||||
if ((i > 0) && (raw_digit & LCD14_DP_MASK))
|
||||
dp_reached = TRUE;
|
||||
if(dp_reached) multiplier /= 10;
|
||||
if (dp_reached)
|
||||
multiplier /= 10;
|
||||
rawval = rawval * 10 + digit;
|
||||
}
|
||||
rawval *= multiplier;
|
||||
if(data->digit[0] & LCD14_D0_NEG)
|
||||
if (data->digit[0] & LCD14_D0_NEG)
|
||||
rawval *= -1;
|
||||
|
||||
/* See if we need to multiply our raw value by anything */
|
||||
if(data->flags & LCD14_NANO) {
|
||||
/* See if we need to multiply our raw value by anything. */
|
||||
if (data->flags & LCD14_NANO)
|
||||
rawval *= 1E-9;
|
||||
} else if(data->flags & LCD14_MICRO) {
|
||||
else if (data->flags & LCD14_MICRO)
|
||||
rawval *= 1E-6;
|
||||
} else if(data->flags & LCD14_MILLI) {
|
||||
else if (data->flags & LCD14_MILLI)
|
||||
rawval *= 1E-3;
|
||||
} else if(data->flags & LCD14_KILO) {
|
||||
else if (data->flags & LCD14_KILO)
|
||||
rawval *= 1E3;
|
||||
} else if(data->flags & LCD14_MEGA) {
|
||||
else if (data->flags & LCD14_MEGA)
|
||||
rawval *= 1E6;
|
||||
}
|
||||
|
||||
return rawval;
|
||||
}
|
||||
|
||||
static void lcd14_handle_packet(lcd14_data *data, struct dev_context *devc)
|
||||
/* Now see what the value means, and pass that on. */
|
||||
static void lcd14_handle_packet(struct lcd14_data *data,
|
||||
struct dev_context *devc)
|
||||
{
|
||||
double rawval = lcdraw_to_double(data);
|
||||
/* *********************************************************************
|
||||
* Now see what the value means, and pass that on
|
||||
**********************************************************************/
|
||||
double rawval;
|
||||
struct sr_datafeed_packet packet;
|
||||
struct sr_datafeed_analog *analog;
|
||||
|
||||
if( !(analog = g_try_malloc0(sizeof(struct sr_datafeed_analog))) ) {
|
||||
sr_err("failed to malloc packet");
|
||||
if (!(analog = g_try_malloc0(sizeof(struct sr_datafeed_analog)))) {
|
||||
sr_err("Failed to malloc packet.");
|
||||
return;
|
||||
}
|
||||
analog->num_samples = 1;
|
||||
if( !(analog->data = g_try_malloc(sizeof(float))) ) {
|
||||
sr_err("failed to malloc data");
|
||||
|
||||
if (!(analog->data = g_try_malloc(sizeof(float)))) {
|
||||
sr_err("Failed to malloc data.");
|
||||
g_free(analog);
|
||||
return;
|
||||
}
|
||||
|
||||
rawval = lcdraw_to_double(data);
|
||||
|
||||
analog->num_samples = 1;
|
||||
*analog->data = (float)rawval;
|
||||
|
||||
analog->mq = -1;
|
||||
|
||||
/* What does the data mean ? */
|
||||
if(data->flags & LCD14_VOLT) {
|
||||
/* What does the data mean? */
|
||||
if (data->flags & LCD14_VOLT) {
|
||||
analog->mq = SR_MQ_VOLTAGE;
|
||||
analog->unit = SR_UNIT_VOLT;
|
||||
if(data->flags & LCD14_AC)
|
||||
if (data->flags & LCD14_AC)
|
||||
analog->mqflags |= SR_MQFLAG_AC;
|
||||
else
|
||||
analog->mqflags |= SR_MQFLAG_DC;
|
||||
}
|
||||
else if(data->flags & LCD14_AMP) {
|
||||
} else if (data->flags & LCD14_AMP) {
|
||||
analog->mq = SR_MQ_CURRENT;
|
||||
analog->unit = SR_UNIT_AMPERE;
|
||||
if(data->flags & LCD14_AC)
|
||||
if (data->flags & LCD14_AC)
|
||||
analog->mqflags |= SR_MQFLAG_AC;
|
||||
else
|
||||
analog->mqflags |= SR_MQFLAG_DC;
|
||||
}
|
||||
else if(data->flags & LCD14_OHM) {
|
||||
if(data->flags & LCD14_BEEP)
|
||||
} else if (data->flags & LCD14_OHM) {
|
||||
if (data->flags & LCD14_BEEP)
|
||||
analog->mq = SR_MQ_CONTINUITY;
|
||||
else
|
||||
analog->mq = SR_MQ_RESISTANCE;
|
||||
if(!isnan(rawval) )
|
||||
if (!isnan(rawval))
|
||||
analog->unit = SR_UNIT_OHM;
|
||||
else {
|
||||
analog->unit = SR_UNIT_BOOLEAN;
|
||||
*analog->data = FALSE;
|
||||
}
|
||||
}
|
||||
else if(data->flags & LCD14_FARAD) {
|
||||
} else if (data->flags & LCD14_FARAD) {
|
||||
analog->mq = SR_MQ_CAPACITANCE;
|
||||
analog->unit = SR_UNIT_FARAD;
|
||||
}
|
||||
else if(data->flags & LCD14_CELSIUS) {
|
||||
} else if (data->flags & LCD14_CELSIUS) {
|
||||
analog->mq = SR_MQ_TEMPERATURE;
|
||||
/* No Kelvin or Fahrenheit from the deive, just Celsius */
|
||||
/* No Kelvin or Fahrenheit from the device, just Celsius. */
|
||||
analog->unit = SR_UNIT_CELSIUS;
|
||||
}
|
||||
else if(data->flags & LCD14_HZ) {
|
||||
} else if (data->flags & LCD14_HZ) {
|
||||
analog->mq = SR_MQ_FREQUENCY;
|
||||
analog->unit = SR_UNIT_HERTZ;
|
||||
}
|
||||
else if(data->flags & LCD14_DUTY) {
|
||||
} else if (data->flags & LCD14_DUTY) {
|
||||
analog->mq = SR_MQ_DUTY_CYCLE;
|
||||
analog->unit = SR_UNIT_PERCENTAGE;
|
||||
}
|
||||
else if(data->flags & LCD14_HFE) {
|
||||
} else if (data->flags & LCD14_HFE) {
|
||||
analog->mq = SR_MQ_GAIN;
|
||||
analog->unit = SR_UNIT_UNITLESS;
|
||||
}
|
||||
else if(data->flags & LCD14_DIODE) {
|
||||
} else if (data->flags & LCD14_DIODE) {
|
||||
analog->mq = SR_MQ_VOLTAGE;
|
||||
analog->unit = SR_UNIT_VOLT;
|
||||
analog->mqflags |= SR_MQFLAG_DIODE | SR_MQFLAG_DC;
|
||||
}
|
||||
else {
|
||||
sr_warn("unable to identify measurement mode");
|
||||
} else {
|
||||
sr_warn("Unable to identify measurement mode.");
|
||||
}
|
||||
|
||||
/* What other flags are associated with the data? */
|
||||
if(data->flags & LCD14_HOLD) {
|
||||
if (data->flags & LCD14_HOLD)
|
||||
analog->mqflags |= SR_MQFLAG_HOLD;
|
||||
}
|
||||
if(data->flags & LCD14_AUTO) {
|
||||
if (data->flags & LCD14_AUTO)
|
||||
analog->mqflags |= SR_MQFLAG_AUTORANGE;
|
||||
}
|
||||
if(data->flags & LCD14_REL) {
|
||||
if (data->flags & LCD14_REL)
|
||||
analog->mqflags |= SR_MQFLAG_RELATIVE;
|
||||
}
|
||||
|
||||
if (analog->mq != -1) {
|
||||
/* Got a measurement. */
|
||||
sr_spew("val %f", rawval);
|
||||
sr_spew("Measurement value is %f.", rawval);
|
||||
packet.type = SR_DF_ANALOG;
|
||||
packet.payload = analog;
|
||||
sr_session_send(devc->cb_data, &packet);
|
||||
devc->num_samples++;
|
||||
}
|
||||
|
||||
g_free(analog->data);
|
||||
g_free(analog);
|
||||
}
|
||||
|
||||
static void handle_new_data(struct dev_context *devc, int fd)
|
||||
{
|
||||
int len;
|
||||
size_t i;
|
||||
size_t offset = 0;
|
||||
/* Try to get as much data as the buffer can hold */
|
||||
int len, i, offset = 0;
|
||||
struct lcd14_packet *packet;
|
||||
struct lcd14_data data;
|
||||
|
||||
/* Try to get as much data as the buffer can hold. */
|
||||
len = DMM_BUFSIZE - devc->buflen;
|
||||
len = serial_read(fd, devc->buf + devc->buflen, len);
|
||||
if (len < 1) {
|
||||
sr_err("serial port read error!");
|
||||
sr_err("Serial port read error: %d.", len);
|
||||
return;
|
||||
}
|
||||
devc->buflen += len;
|
||||
|
||||
/* Now look for packets in that data */
|
||||
while((devc->buflen - offset) >= LCD14_PACKET_SIZE)
|
||||
{
|
||||
lcd14_packet * packet = (void *)(devc->buf + offset);
|
||||
lcd14_data data;
|
||||
if( lcd14_is_packet_valid(packet, &data) )
|
||||
{
|
||||
/* Now look for packets in that data. */
|
||||
while ((devc->buflen - offset) >= LCD14_PACKET_SIZE) {
|
||||
packet = (void *)(devc->buf + offset);
|
||||
if (lcd14_is_packet_valid(packet, &data)) {
|
||||
lcd14_handle_packet(&data, devc);
|
||||
offset += LCD14_PACKET_SIZE;
|
||||
} else {
|
||||
|
|
@ -346,13 +337,13 @@ static void handle_new_data(struct dev_context *devc, int fd)
|
|||
}
|
||||
}
|
||||
|
||||
/* If we have any data left, move it to the beginning of our buffer */
|
||||
for(i = 0; i < devc->buflen - offset; i++)
|
||||
/* If we have any data left, move it to the beginning of our buffer. */
|
||||
for (i = 0; i < devc->buflen - offset; i++)
|
||||
devc->buf[i] = devc->buf[offset + i];
|
||||
devc->buflen -= offset;
|
||||
}
|
||||
|
||||
SR_PRIV int lcd14_receive_data(int fd, int revents, void *cb_data)
|
||||
SR_PRIV int tekpower_dmm_receive_data(int fd, int revents, void *cb_data)
|
||||
{
|
||||
const struct sr_dev_inst *sdi;
|
||||
struct dev_context *devc;
|
||||
|
|
@ -363,8 +354,7 @@ SR_PRIV int lcd14_receive_data(int fd, int revents, void *cb_data)
|
|||
if (!(devc = sdi->priv))
|
||||
return TRUE;
|
||||
|
||||
if (revents == G_IO_IN)
|
||||
{
|
||||
if (revents == G_IO_IN) {
|
||||
/* Serial data arrived. */
|
||||
handle_new_data(devc, fd);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -29,86 +29,87 @@
|
|||
#define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args)
|
||||
#define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args)
|
||||
|
||||
#define DMM_BUFSIZE 256
|
||||
#define DMM_BUFSIZE 256
|
||||
|
||||
/* Flags present in the packet */
|
||||
#define LCD14_AC (1<<23)
|
||||
#define LCD14_DC (1<<22)
|
||||
#define LCD14_AUTO (1<<21)
|
||||
#define LCD14_RS232 (1<<20)
|
||||
#define LCD14_MICRO (1<<19)
|
||||
#define LCD14_NANO (1<<18)
|
||||
#define LCD14_KILO (1<<17)
|
||||
#define LCD14_DIODE (1<<16)
|
||||
#define LCD14_MILLI (1<<15)
|
||||
#define LCD14_DUTY (1<<14)
|
||||
#define LCD14_MEGA (1<<13)
|
||||
#define LCD14_BEEP (1<<12)
|
||||
#define LCD14_FARAD (1<<11)
|
||||
#define LCD14_OHM (1<<10)
|
||||
#define LCD14_REL (1<< 9)
|
||||
#define LCD14_HOLD (1<< 8)
|
||||
#define LCD14_AMP (1<< 7)
|
||||
#define LCD14_VOLT (1<< 6)
|
||||
#define LCD14_HZ (1<< 5)
|
||||
#define LCD14_LOW_BATT (1<< 4)
|
||||
#define LCD14_HFE (1<< 3)
|
||||
#define LCD14_CELSIUS (1<< 2)
|
||||
#define LCD14_RSVD1 (1<< 1)
|
||||
#define LCD14_RSVD0 (0<< 0)
|
||||
#define LCD14_AC (1 << 23)
|
||||
#define LCD14_DC (1 << 22)
|
||||
#define LCD14_AUTO (1 << 21)
|
||||
#define LCD14_RS232 (1 << 20)
|
||||
#define LCD14_MICRO (1 << 19)
|
||||
#define LCD14_NANO (1 << 18)
|
||||
#define LCD14_KILO (1 << 17)
|
||||
#define LCD14_DIODE (1 << 16)
|
||||
#define LCD14_MILLI (1 << 15)
|
||||
#define LCD14_DUTY (1 << 14)
|
||||
#define LCD14_MEGA (1 << 13)
|
||||
#define LCD14_BEEP (1 << 12)
|
||||
#define LCD14_FARAD (1 << 11)
|
||||
#define LCD14_OHM (1 << 10)
|
||||
#define LCD14_REL (1 << 9)
|
||||
#define LCD14_HOLD (1 << 8)
|
||||
#define LCD14_AMP (1 << 7)
|
||||
#define LCD14_VOLT (1 << 6)
|
||||
#define LCD14_HZ (1 << 5)
|
||||
#define LCD14_LOW_BATT (1 << 4)
|
||||
#define LCD14_HFE (1 << 3)
|
||||
#define LCD14_CELSIUS (1 << 2)
|
||||
#define LCD14_RSVD1 (1 << 1)
|
||||
#define LCD14_RSVD0 (0 << 0)
|
||||
|
||||
/* mask to remove the decimal point from a digit */
|
||||
#define LCD14_DP_MASK (0x80)
|
||||
#define LCD14_D0_NEG LCD14_DP_MASK
|
||||
/* mask to remove the syncronization nibble */
|
||||
#define LCD14_SYNC_MASK (0xF0)
|
||||
/* Mask used to remove the decimal point from a digit. */
|
||||
#define LCD14_DP_MASK 0x80
|
||||
#define LCD14_D0_NEG LCD14_DP_MASK
|
||||
/* Mask used to remove the syncronization nibble. */
|
||||
#define LCD14_SYNC_MASK 0xf0
|
||||
|
||||
/* What the LCD values represent */
|
||||
#define LCD14_LCD_0 0x7d
|
||||
#define LCD14_LCD_1 0x05
|
||||
#define LCD14_LCD_2 0x5b
|
||||
#define LCD14_LCD_3 0x1f
|
||||
#define LCD14_LCD_4 0x27
|
||||
#define LCD14_LCD_5 0x3e
|
||||
#define LCD14_LCD_6 0x7e
|
||||
#define LCD14_LCD_7 0x15
|
||||
#define LCD14_LCD_8 0x7f
|
||||
#define LCD14_LCD_9 0x3f
|
||||
|
||||
#define LCD14_LCD_0 0x7d
|
||||
#define LCD14_LCD_1 0x05
|
||||
#define LCD14_LCD_2 0x5b
|
||||
#define LCD14_LCD_3 0x1f
|
||||
#define LCD14_LCD_4 0x27
|
||||
#define LCD14_LCD_5 0x3e
|
||||
#define LCD14_LCD_6 0x7e
|
||||
#define LCD14_LCD_7 0x15
|
||||
#define LCD14_LCD_8 0x7f
|
||||
#define LCD14_LCD_9 0x3f
|
||||
|
||||
#define LCD14_LCD_INVALID 0xff
|
||||
|
||||
typedef struct {
|
||||
uint8_t raw[14];
|
||||
} lcd14_packet;
|
||||
#define LCD14_PACKET_SIZE 14
|
||||
|
||||
typedef struct {
|
||||
struct lcd14_packet {
|
||||
uint8_t raw[LCD14_PACKET_SIZE];
|
||||
};
|
||||
|
||||
struct lcd14_data {
|
||||
uint8_t digit[4];
|
||||
uint32_t flags;
|
||||
} lcd14_data;
|
||||
};
|
||||
|
||||
#define LCD14_PACKET_SIZE (sizeof(lcd14_packet))
|
||||
SR_PRIV gboolean lcd14_is_packet_valid(const struct lcd14_packet *packet,
|
||||
struct lcd14_data *data);
|
||||
|
||||
SR_PRIV gboolean lcd14_is_packet_valid(const lcd14_packet *packet,
|
||||
lcd14_data *data);
|
||||
|
||||
/* Private, per-device-instance driver context. */
|
||||
/** Private, per-device-instance driver context. */
|
||||
struct dev_context {
|
||||
/** The current sampling limit (in number of samples). */
|
||||
uint64_t limit_samples;
|
||||
|
||||
/** Opaque pointer passed in by the frontend. */
|
||||
void *cb_data;
|
||||
|
||||
/** The current number of already received samples. */
|
||||
uint64_t num_samples;
|
||||
|
||||
struct sr_serial_dev_inst *serial;
|
||||
char *serialcomm;
|
||||
|
||||
/* Opaque pointer passed in by the frontend. */
|
||||
void *cb_data;
|
||||
|
||||
/* Runtime. */
|
||||
uint64_t num_samples;
|
||||
uint8_t buf[DMM_BUFSIZE];
|
||||
size_t bufoffset;
|
||||
size_t buflen;
|
||||
int bufoffset;
|
||||
int buflen;
|
||||
};
|
||||
|
||||
SR_PRIV int tekpower_dmm_receive_data(int fd, int revents, void *cb_data);
|
||||
|
||||
SR_PRIV int lcd14_receive_data(int fd, int revents, void *cb_data);
|
||||
|
||||
#endif /* LIBSIGROK_HARDWARE_TEKPOWER_DMM_PROTOCOL_H */
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -108,7 +108,7 @@ extern SR_PRIV struct sr_dev_driver flukedmm_driver_info;
|
|||
extern SR_PRIV struct sr_dev_driver radioshackdmm_driver_info;
|
||||
#endif
|
||||
#ifdef HAVE_HW_TEKPOWER_DMM
|
||||
extern SR_PRIV struct sr_dev_driver tekpower_driver_info;
|
||||
extern SR_PRIV struct sr_dev_driver tekpower_dmm_driver_info;
|
||||
#endif
|
||||
/** @endcond */
|
||||
|
||||
|
|
@ -153,7 +153,7 @@ static struct sr_dev_driver *drivers_list[] = {
|
|||
&radioshackdmm_driver_info,
|
||||
#endif
|
||||
#ifdef HAVE_HW_TEKPOWER_DMM
|
||||
&tekpower_driver_info,
|
||||
&tekpower_dmm_driver_info,
|
||||
#endif
|
||||
NULL,
|
||||
};
|
||||
|
|
|
|||
Loading…
Reference in New Issue