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agilent-dmm: Use sr_dev_inst to store connection handle

This commit is contained in:
Bert Vermeulen 2013-04-21 21:44:31 +02:00
parent e31d410d26
commit fb3a150599
3 changed files with 24 additions and 23 deletions
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1
hardware/agilent-dmm/agilent-dmm.h
View File

@ -55,7 +55,6 @@ struct dev_context {
const struct agdmm_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;

35
hardware/agilent-dmm/api.c
View File

@ -67,6 +67,7 @@ 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))
@ -78,7 +79,8 @@ 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);
@ -162,8 +164,9 @@ static GSList *hw_scan(GSList *options)
return NULL;
}
devc->profile = &supported_agdmm[i];
devc->serial = serial;
devc->cur_mq = -1;
sdi->inst_type = SR_INST_SERIAL;
sdi->conn = serial;
sdi->priv = devc;
sdi->driver = di;
if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
@ -191,14 +194,10 @@ 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;
@ -208,12 +207,11 @@ 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;
}
@ -284,10 +282,10 @@ static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
return SR_OK;
}
static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
void *cb_data)
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.");
@ -300,7 +298,8 @@ 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, 100, agdmm_receive_data, (void *)sdi);
serial = sdi->conn;
sr_source_add(serial->fd, G_IO_IN, 100, agdmm_receive_data, (void *)sdi);
return SR_OK;
}
@ -308,7 +307,7 @@ 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 agdmm_driver_info = {

11
hardware/agilent-dmm/sched.c
View File

@ -91,6 +91,7 @@ SR_PRIV int agdmm_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;
(void)fd;
@ -101,10 +102,11 @@ SR_PRIV int agdmm_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(AGDMM_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 += len;
@ -127,17 +129,18 @@ SR_PRIV int agdmm_receive_data(int fd, int revents, void *cb_data)
static int agdmm_send(const struct sr_dev_inst *sdi, const char *cmd)
{
struct dev_context *devc;
struct sr_serial_dev_inst *serial;
char buf[32];
devc = sdi->priv;
serial = sdi->conn;
sr_spew("Sending '%s'.", cmd);
strncpy(buf, cmd, 28);
if (!strncmp(buf, "*IDN?", 5))
strncat(buf, "\r\n", 32);
else
strncat(buf, "\n\r\n", 32);
if (serial_write(devc->serial, buf, strlen(buf)) == -1) {
if (serial_write(serial, buf, strlen(buf)) == -1) {
sr_err("Failed to send: %s.", strerror(errno));
return SR_ERR;
}