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serial-dmm: Use sr_dev_inst to store connection handle.

This commit is contained in:
Uwe Hermann 2013-04-23 19:07:15 +02:00
parent 625cc7834a
commit 1e1bfcd0fe
3 changed files with 23 additions and 20 deletions
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32
hardware/serial-dmm/api.c
View File

@ -173,6 +173,7 @@ static int clear_instances(int dmm)
struct sr_dev_inst *sdi;
struct drv_context *drvc;
struct dev_context *devc;
struct sr_serial_dev_inst *serial;
GSList *l;
struct sr_dev_driver *di;
@ -187,7 +188,8 @@ static int clear_instances(int dmm)
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);
@ -271,7 +273,8 @@ static GSList *scan(const char *conn, const char *serialcomm, int dmm)
goto scan_cleanup;
}
devc->serial = serial;
sdi->inst_type = SR_INST_SERIAL;
sdi->conn = serial;
sdi->priv = devc;
sdi->driver = dmms[dmm].di;
@ -326,14 +329,10 @@ static GSList *hw_dev_list(int dmm)
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;
@ -343,12 +342,11 @@ 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;
}
@ -417,6 +415,7 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
void *cb_data, int dmm)
{
struct dev_context *devc;
struct sr_serial_dev_inst *serial;
if (!(devc = sdi->priv)) {
sr_err("sdi->priv was NULL.");
@ -437,7 +436,8 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
/* Poll every 50ms, or whenever some data comes in. */
sr_source_add(devc->serial->fd, G_IO_IN, 50,
serial = sdi->conn;
sr_source_add(serial->fd, G_IO_IN, 50,
dmms[dmm].receive_data, (void *)sdi);
return SR_OK;
@ -446,7 +446,7 @@ 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);
}
/* Driver-specific API function wrappers */

9
hardware/serial-dmm/protocol.c
View File

@ -122,12 +122,14 @@ static void handle_new_data(struct sr_dev_inst *sdi, int dmm, void *info)
{
struct dev_context *devc;
int len, i, offset = 0;
struct sr_serial_dev_inst *serial;
devc = sdi->priv;
serial = sdi->conn;
/* Try to get as much data as the buffer can hold. */
len = DMM_BUFSIZE - devc->buflen;
len = serial_read(devc->serial, devc->buf + devc->buflen, len);
len = serial_read(serial, devc->buf + devc->buflen, len);
if (len < 1) {
sr_err("Serial port read error: %d.", len);
return;
@ -154,6 +156,7 @@ static int receive_data(int fd, int revents, int dmm, void *info, void *cb_data)
{
struct sr_dev_inst *sdi;
struct dev_context *devc;
struct sr_serial_dev_inst *serial;
int64_t time;
int ret;
@ -165,13 +168,15 @@ static int receive_data(int fd, int revents, int dmm, void *info, void *cb_data)
if (!(devc = sdi->priv))
return TRUE;
serial = sdi->conn;
if (revents == G_IO_IN) {
/* Serial data arrived. */
handle_new_data(sdi, dmm, info);
} else {
/* Timeout, send another packet request (if DMM needs it). */
if (dmms[dmm].packet_request) {
ret = dmms[dmm].packet_request(devc->serial);
ret = dmms[dmm].packet_request(serial);
if (ret < 0) {
sr_err("Failed to request packet: %d.", ret);
return FALSE;

2
hardware/serial-dmm/protocol.h
View File

@ -85,8 +85,6 @@ struct dev_context {
int64_t starttime;
struct sr_serial_dev_inst *serial;
uint8_t buf[DMM_BUFSIZE];
int bufoffset;
int buflen;