BLAHAJ
/
libsigrok
10
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

fluke-dmm: Use sr_dev_inst to store connection handle

This commit is contained in:
Bert Vermeulen 2013-04-22 01:07:35 +02:00
parent aa7066353c
commit 919681f0e8
3 changed files with 23 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
hardware/fluke-dmm/api.c
View File

@ -65,6 +65,7 @@ static int clear_instances(void)
struct sr_dev_inst *sdi;
struct drv_context *drvc;
struct dev_context *devc;
struct sr_serial_dev_inst *serial;
GSList *l;
if (!(drvc = di->priv))
@ -76,7 +77,8 @@ static int clear_instances(void)
continue;
if (!(devc = sdi->priv))
continue;
sr_serial_dev_inst_free(devc->serial);
serial = sdi->conn;
sr_serial_dev_inst_free(serial);
sr_dev_inst_free(sdi);
}
g_slist_free(drvc->instances);
@ -157,7 +159,7 @@ static GSList *fluke_scan(const char *conn, const char *serialcomm)
return NULL;
}
devc->profile = &supported_flukedmm[i];
devc->serial = serial;
sdi->conn = serial;
sdi->priv = devc;
sdi->driver = di;
if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
@ -225,14 +227,10 @@ static GSList *hw_dev_list(void)
static int hw_dev_open(struct sr_dev_inst *sdi)
{
struct dev_context *devc;
struct sr_serial_dev_inst *serial;
if (!(devc = sdi->priv)) {
sr_err("sdi->priv was NULL.");
return SR_ERR_BUG;
}
if (serial_open(devc->serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
serial = sdi->conn;
if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
return SR_ERR;
sdi->status = SR_ST_ACTIVE;
@ -242,12 +240,11 @@ static int hw_dev_open(struct sr_dev_inst *sdi)
static int hw_dev_close(struct sr_dev_inst *sdi)
{
struct dev_context *devc;
struct sr_serial_dev_inst *serial;
devc = sdi->priv;
if (devc->serial && devc->serial->fd != -1) {
serial_close(devc->serial);
serial = sdi->conn;
if (serial && serial->fd != -1) {
serial_close(serial);
sdi->status = SR_ST_INACTIVE;
}
@ -322,6 +319,7 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
void *cb_data)
{
struct dev_context *devc;
struct sr_serial_dev_inst *serial;
if (!(devc = sdi->priv)) {
sr_err("sdi->priv was NULL.");
@ -334,9 +332,10 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
/* Poll every 100ms, or whenever some data comes in. */
sr_source_add(devc->serial->fd, G_IO_IN, 50, fluke_receive_data, (void *)sdi);
serial = sdi->conn;
sr_source_add(serial->fd, G_IO_IN, 50, fluke_receive_data, (void *)sdi);
if (serial_write(devc->serial, "QM\r", 3) == -1) {
if (serial_write(serial, "QM\r", 3) == -1) {
sr_err("Unable to send QM: %s.", strerror(errno));
return SR_ERR;
}
@ -349,7 +348,7 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
return std_hw_dev_acquisition_stop_serial(sdi, cb_data, hw_dev_close,
((struct dev_context *)(sdi->priv))->serial, DRIVER_LOG_DOMAIN);
sdi->conn, DRIVER_LOG_DOMAIN);
}
SR_PRIV struct sr_dev_driver flukedmm_driver_info = {

1
hardware/fluke-dmm/fluke-dmm.h
View File

@ -54,7 +54,6 @@ struct dev_context {
const struct flukedmm_profile *profile;
uint64_t limit_samples;
uint64_t limit_msec;
struct sr_serial_dev_inst *serial;
/* Opaque pointer passed in by the frontend. */
void *cb_data;

10
hardware/fluke-dmm/fluke.c
View File

@ -414,12 +414,14 @@ static void handle_qm_19x_data(const struct sr_dev_inst *sdi, char **tokens)
static void handle_line(const struct sr_dev_inst *sdi)
{
struct dev_context *devc;
struct sr_serial_dev_inst *serial;
struct sr_datafeed_packet packet;
struct sr_datafeed_analog *analog;
int num_tokens, n, i;
char cmd[16], **tokens;
devc = sdi->priv;
serial = sdi->conn;
sr_spew("Received line '%s' (%d).", devc->buf, devc->buflen);
if (devc->buflen == 1) {
@ -456,7 +458,7 @@ static void handle_line(const struct sr_dev_inst *sdi)
/* Slip the request in now, before the main
* timer loop asks for metadata again. */
n = sprintf(cmd, "QM %d\r", devc->meas_type);
if (serial_write(devc->serial, cmd, n) == -1)
if (serial_write(serial, cmd, n) == -1)
sr_err("Unable to send QM (measurement): %s.",
strerror(errno));
}
@ -485,6 +487,7 @@ SR_PRIV int fluke_receive_data(int fd, int revents, void *cb_data)
{
struct sr_dev_inst *sdi;
struct dev_context *devc;
struct sr_serial_dev_inst *serial;
int len;
int64_t now, elapsed;
@ -496,10 +499,11 @@ SR_PRIV int fluke_receive_data(int fd, int revents, void *cb_data)
if (!(devc = sdi->priv))
return TRUE;
serial = sdi->conn;
if (revents == G_IO_IN) {
/* Serial data arrived. */
while(FLUKEDMM_BUFSIZE - devc->buflen - 1 > 0) {
len = serial_read(devc->serial, devc->buf + devc->buflen, 1);
len = serial_read(serial, devc->buf + devc->buflen, 1);
if (len < 1)
break;
devc->buflen++;
@ -524,7 +528,7 @@ SR_PRIV int fluke_receive_data(int fd, int revents, void *cb_data)
* out-of-sync or temporary disconnect issues. */
if ((devc->expect_response == FALSE && elapsed > devc->profile->poll_period)
|| elapsed > devc->profile->timeout) {
if (serial_write(devc->serial, "QM\r", 3) == -1)
if (serial_write(serial, "QM\r", 3) == -1)
sr_err("Unable to send QM: %s.", strerror(errno));
devc->cmd_sent_at = now;
devc->expect_response = TRUE;