Hi,
I am relatively new to Android. I have to develop an FM application for
testing FM on Android. The FM chip is a combo chip (BT/FM) using HCI as
transport. I need to activate the Hciattach daemon when BT is switched off
and FM is to be switched on.
I use the same code as present in bluetooth.c for enabling the hciattach
daemon as below :
property_set("ctl.start", "hciattach");
/* Set the FM IP State to started*/
// Try for 10 seconds, this can only succeed once hciattach has
sent the
// firmware and then turned on hci device via HCIUARTSETPROTO
ioctl
for (attempt = 1000; attempt > 0; attempt--) {
hci_sock = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI);
if (hci_sock < 0) {
FM_DEBUG_REPORT("EnableHCI: Unable to open HCI
Socket!!!");
goto out;
}
if (!ioctl(hci_sock, HCIDEVUP, HCI_DEV_ID)) {
FM_DEBUG_REPORT("EnableHCI: HCI Device is up and
running");
break;
}
close(hci_sock);
usleep(10000); // 10 ms retry delay
}
if (attempt == 0) {
FM_ERR_REPORT("EnableHCI: Timeout waiting for HCI device to
come up");
goto out;
}
The problem is this code does not work when I try to launch my FM
application (radiofm.apk => libfm.so) This code is present in libfm.so.
I am unable to start hciattach daemon, and the socket call fails.
Interestingly if i build a command line application, which uses the same
function calls, the above code works fine. Can you let me know if I am
missing something, is it related to some permission that needs to be given
to the radiofm.apk to start the hciattach daemon ?
Help would be really appreciated since I am clueless and unable to proceed
because of this issue.
Best Regards
Hemant
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