allow for intermediate stage in stopping acquisition

[libsigrok.git] / hardware / radioshack-dmm / api.c

diff --git a/hardware/radioshack-dmm/api.c b/hardware/radioshack-dmm/api.c
index abfe20728208b16871836b82c93ef849656ee5d7..7520924012a18c64d06cedd9774af82800e91b02 100644 (file)
--- a/hardware/radioshack-dmm/api.c
+++ b/hardware/radioshack-dmm/api.c
@@ -19,14 +19,14 @@
  */
 
 #include <glib.h>
-#include "libsigrok.h"
-#include "libsigrok-internal.h"
-#include "radioshack-dmm.h"
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <string.h>
 #include <errno.h>
+#include "libsigrok.h"
+#include "libsigrok-internal.h"
+#include "radioshack-dmm.h"
 
 static const int hwopts[] = {
        SR_HWOPT_CONN,
@@ -85,7 +85,7 @@ static int hw_init(void)
 
        if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
                sr_err("Driver context malloc failed.");
-               return SR_ERR;
+               return SR_ERR_MALLOC;
        }
 
        di->priv = drvc;
@@ -93,40 +93,6 @@ static int hw_init(void)
        return SR_OK;
 }
 
-static int serial_readline(int fd, char **buf, size_t *buflen,
-                          uint64_t timeout_ms)
-{
-       uint64_t start;
-       int maxlen, len;
-
-       timeout_ms *= 1000;
-       start = g_get_monotonic_time();
-
-       maxlen = *buflen;
-       *buflen = len = 0;
-       while(1) {
-               len = maxlen - *buflen - 1;
-               if (len < 1)
-                       break;
-               len = serial_read(fd, *buf + *buflen, 1);
-               if (len > 0) {
-                       *buflen += len;
-                       *(*buf + *buflen) = '\0';
-                       if (*buflen > 0 && *(*buf + *buflen - 1) == '\r') {
-                               /* Strip LF and terminate. */
-                               *(*buf + --*buflen) = '\0';
-                               break;
-                       }
-               }
-               if (g_get_monotonic_time() - start > timeout_ms)
-                       /* Timeout */
-                       break;
-               g_usleep(2000);
-       }
-
-       return SR_OK;
-}
-
 static GSList *rs_22_812_scan(const char *conn, const char *serialcomm)
 {
        struct sr_dev_inst *sdi;
@@ -410,8 +376,7 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
        return SR_OK;
 }
 
-static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
-               void *cb_data)
+static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 {
        struct sr_datafeed_packet packet;
        struct dev_context *devc;