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Commit 5586e8cb authored by Sharvil Nanavati's avatar Sharvil Nanavati
Browse files

Add a SCO routing command to net_hci. 

This allows us to change the SCO routing parameters at runtime while
debugging / doing device bringup.

Change-Id: I8bafb7c7fb7ad7470d378cd14a7ee4aad63f3b9b
parent 6cefe2c6

system/tools/hci/main.c

+27 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ static int help(int argc, char **argv); 
static int set_discoverable(int argc, char **argv);

static int set_name(int argc, char **argv);

static int set_pcm_loopback(int argc, char **argv);

static int set_sco_route(int argc, char **argv);



static bool write_hci_command(hci_packet_t type, const void *packet, size_t length);

static const command_t *find_command(const char *name);
@@ -37,6 +38,7 @@ static const command_t commands[] = { 
  { "setDiscoverable", "(true|false) - whether the controller should be discoverable.", set_discoverable },

  { "setName", "<name> - sets the device's Bluetooth name to <name>.", set_name },

  { "setPcmLoopback", "(true|false) - enables or disables PCM loopback on the controller.", set_pcm_loopback },

  { "setScoRoute", "(pcm|i2s|uart) - sets the SCO packet route to one of the specified buses.", set_sco_route },

};



static int help(int argc, char **argv) {
@@ -120,6 +122,31 @@ static int set_pcm_loopback(int argc, char **argv) { 
  return !write_hci_command(HCI_PACKET_COMMAND, packet, ARRAY_SIZE(packet));

}



static int set_sco_route(int argc, char **argv) {

  if (argc != 1) {

    printf("SCO route parameter must be specified.\n");

    return 1;

  }



  uint8_t route = 0xFF;

  if (!strcmp(argv[0], "pcm"))

    route = 0;

  else if (!strcmp(argv[0], "i2s"))

    route = 3;

  else if (!strcmp(argv[0], "uart"))

    route = 1;



  if (route == 0xFF) {

    printf("Invalid SCO route specified: %s\n", argv[0]);

    return 2;

  }



  uint8_t packet[] = { 0x1C, 0xFC, 0x05, 0x00, 0x02, 0x00, 0x00, 0x00 };

  packet[3] = route;



  return !write_hci_command(HCI_PACKET_COMMAND, packet, ARRAY_SIZE(packet));

}



int main(int argc, char **argv) {

  if (argc < 2) {

    usage(argv[0]);