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koos vriezen schreef:
> 2006/10/3, Armin M. Warda <[EMAIL PROTECTED]>:
>> Hi Cezary,
>
> Hi,
>
>> I merged your 'GPS-Info patch' for Maemo-Mapper 1.1
>> http://eko.one.pl/files/n770/maemo-mapper/gpsinfo/gpsinfo-20061002.diff
>> with my set of patches.
>
> Is the original project dead, there have been no traffic in SVN the
> last months or so. In a forom thread I also posted a patch (attached
> because link is broken) that 'fixes' my bt jam (using the method in
> one of the older versions of mapper, now when a certain time no data
> arrived). Also i noticed that 'g_io_channel_read_line' is a real power
> consumer when lines only arrive partial, it keeps generating input
> events until the eol is arrived (ironically this increases the bt jam
> occurrence).
I'm a victim of the bt jam as well, so can this patch get integrated into the
aw builds as
well? Other than that, maemo-mapper-aw really rocks!
regards,
Koen
> One other thing I noticed that the screen blank protection didn't work
> in fullscreen mode. (I always start an extra app that does that too).
> Given that I have now used mapper over quite some distances, often
> more than four hours drive, and mapper w/o these patch is jammed
> within 10 minutes or so, I'm starting to believe that it's rather
> stable for me.
>
>
> ------------------------------------------------------------------------
>
> Index: src/maemo-mapper.c
> ===================================================================
> --- src/maemo-mapper.c (revision 26)
> +++ src/maemo-mapper.c (working copy)
> @@ -505,6 +505,12 @@
>
> /** The file descriptor of our connection with the GPS receiver. */
> static gint _fd = -1;
> +/** Track how often we fail to read a line as an indication of a bluetooth
> jam*/
> +static gint _fd_read_timeout_check;
> +static gint _fd_read_failure;
> +static gint _fd_read_timeout_timer;
> +static gchar _gps_read_buf[256];
> +static gchar _gps_read_buf_pos;
>
> /** The GIOChannel through which communication with the GPS receiver is
> * performed. */
> @@ -1448,6 +1454,11 @@
> g_source_remove(_input_sid);
> _input_sid = 0;
> }
> + if (_fd_read_timeout_timer)
> + {
> + g_source_remove(_fd_read_timeout_timer);
> + _fd_read_timeout_timer = 0;
> + }
>
> /* Destroy the GIOChannel object. */
> if(_channel)
> @@ -1468,6 +1479,7 @@
> }
>
> static void rcvr_connect_later(); /* Forward declaration. */
> +static gboolean channel_cb_data_timeout(gpointer data);
>
> /**
> * Connect to the receiver.
> @@ -1497,6 +1509,9 @@
> rcvr_connect_later();
> else
> {
> + _gps_read_buf_pos = 0;
> + _fd_read_timeout_check = TRUE;
> + _fd_read_timeout_timer = g_timeout_add(30000,
> channel_cb_data_timeout, NULL);
> _channel = g_io_channel_unix_new(_fd);
> g_io_channel_set_flags(_channel, G_IO_FLAG_NONBLOCK, NULL);
> _error_sid = g_io_add_watch_full(_channel, G_PRIORITY_HIGH_IDLE,
> @@ -5116,6 +5131,42 @@
> }
>
> static gboolean
> +hci_cb_reset(gpointer data)
> +{
> + fprintf(stderr, "%s %d %d\n", __PRETTY_FUNCTION__, _fd_read_failure,
> _fd_read_timeout_check);
> +
> + if (_fd_read_failure > 100 || _fd_read_timeout_check) /* recheck */
> + {
> + /* An bt jam - reset hci. */
> + rcvr_disconnect();
> + _fd_read_failure = 0;
> + system("/usr/bin/sudo -l | grep -q '/usr/sbin/hciconfig *hci0
> *reset'"
> + " && sudo /usr/sbin/hciconfig hci0 reset");
> + track_add(0, FALSE);
> +
> + if(_conn_state > RCVR_OFF)
> + {
> + set_conn_state(RCVR_DOWN);
> + rcvr_connect_now();
> + }
> + }
> + vprintf("%s(): return\n", __PRETTY_FUNCTION__);
> + return FALSE;
> +}
> +
> +static gboolean
> +channel_cb_data_timeout(gpointer data)
> +{
> + fprintf(stderr, "%s\n", __PRETTY_FUNCTION__);
> + if (_fd_read_timeout_check)
> + g_timeout_add(0, hci_cb_reset, NULL);
> + else
> + _fd_read_timeout_check = TRUE;
> + vprintf("%s(): return\n", __PRETTY_FUNCTION__);
> + return TRUE; /* keep alive */
> +}
> +
> +static gboolean
> channel_cb_connect(GIOChannel *src, GIOCondition condition, gpointer data)
> {
> int error, size = sizeof(error);
> @@ -5356,39 +5407,61 @@
> static gboolean
> channel_cb_input(GIOChannel *src, GIOCondition condition, gpointer data)
> {
> - gchar *sentence;
> + gchar *sentence = _gps_read_buf;
> + gsize bytes_read;
> vprintf("%s(%d)\n", __PRETTY_FUNCTION__, condition);
> -
> - while(G_IO_STATUS_NORMAL == g_io_channel_read_line(
> + _fd_read_failure++;
> +
> + if (G_IO_STATUS_NORMAL == g_io_channel_read_chars (
> _channel,
> - &sentence,
> - NULL,
> - NULL,
> - NULL) && sentence)
> + _gps_read_buf + _gps_read_buf_pos,
> + sizeof(_gps_read_buf) - _gps_read_buf_pos -1,
> + &bytes_read,
> + NULL))
> {
> - gchar *sptr = sentence + 1;
> - guint csum = 0;
> - while(*sptr && *sptr != '*')
> - csum ^= *sptr++;
> - if (!*sptr || csum == strtol(sptr+1, NULL, 16))
> + char *eol;
> + _gps_read_buf_pos += bytes_read;
> + _gps_read_buf[_gps_read_buf_pos] = 0;
> + eol = strchr(_gps_read_buf, '\n');
> + _fd_read_timeout_check = FALSE;
> + while (eol)
> {
> - if(*sptr)
> - *sptr = '\0'; /* take checksum out of the sentence. */
> - if(!strncmp(sentence + 3, "RMC", 3))
> - channel_parse_rmc(sentence + 7);
> - else if(_conn_state == RCVR_UP
> - && !strncmp(sentence + 3, "GSV", 3))
> - channel_parse_gsv(sentence + 7);
> + gchar *sptr = sentence + 1;
> + guint csum = 0;
> + int leftover = _gps_read_buf + _gps_read_buf_pos - eol - 1;
> + *eol = 0;
> + while(*sptr && *sptr != '*')
> + csum ^= *sptr++;
> + if (!*sptr || csum == strtol(sptr+1, NULL, 16))
> + {
> + _fd_read_failure = 0;
> + if(*sptr)
> + *sptr = '\0'; /* take checksum out of the sentence. */
> + if(!strncmp(sentence + 3, "RMC", 3))
> + channel_parse_rmc(sentence + 7);
> + else if(_conn_state == RCVR_UP
> + && !strncmp(sentence + 3, "GSV", 3))
> + channel_parse_gsv(sentence + 7);
> + }
> + else
> + {
> + fprintf(stderr, "%s: Bad checksum in NMEA sentence:\n%s\n",
> + __PRETTY_FUNCTION__, sentence);
> + }
> + if (leftover <= 0) { /* last read was a newline */
> + _gps_read_buf_pos = 0;
> + eol = 0;
> + } else {
> + memmove(_gps_read_buf, eol+1, leftover+1); /* incl term. 0 */
> + _gps_read_buf_pos = leftover;
> + eol = strchr(_gps_read_buf, '\n');
> + }
> }
> - else
> - {
> - printf("%s: Bad checksum in NMEA sentence:\n%s\n",
> - __PRETTY_FUNCTION__, sentence);
> - }
> - g_free(sentence);
> }
>
> - vprintf("%s(): return TRUE\n", __PRETTY_FUNCTION__);
> + if (_fd_read_failure > 100)
> + g_timeout_add(0, hci_cb_reset, NULL);
> + vprintf("%s():status return TRUE\n", __PRETTY_FUNCTION__);
> return TRUE;
> }
>
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> maemo-developers mailing list
> [email protected]
> https://maemo.org/mailman/listinfo/maemo-developers
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