I also changed:
case RTBTH_IOCDMAC:
do {
struct rtbth_dmac dmac;
if (copy_from_user(&dmac, (void *)arg, sizeof(dmac))) {
retval = -EFAULT;
DebugPrint(ERROR, DBG_INIT,"copy_from_user failed at %d\n",
__LINE__);
break;
}
DebugPrint(ERROR, DBG_INIT,"RTBTH_IOCDMAC: dmac.dmac_op=%d\n",
dmac.dmac_op);
if(dmac.dmac_op == 0){
RtbtResetPDMA(gpAd);
}else if(dmac.dmac_op == 1){
BthEnableRxTx(gpAd);
}else if(dmac.dmac_op == 2){
DebugPrint(TRACE, DBG_MISC, "%s:kfifo reset ==>\n",
__func__);
kfifo_reset(gpAd->acl_fifo);
kfifo_reset(gpAd->hci_fifo);
kfifo_reset(gpAd->evt_fifo);
kfifo_reset(gpAd->sco_fifo);
kfifo_reset(gpAd->rx_fifo);
DebugPrint(TRACE, DBG_MISC, "%s:kfifo reset <== \n",
__func__);
}
else {
DebugPrint(ERROR, DBG_INIT,"No such the dma op = %d\n",
dmac.dmac_op);
}
}while(0);
break;
to:
case RTBTH_IOCDMAC:
do {
struct rtbth_dmac dmac;
if (copy_from_user(&dmac, (void *)arg, sizeof(dmac))) {
retval = -EFAULT;
DebugPrint(ERROR, DBG_INIT,"copy_from_user failed at %d\n",
__LINE__);
break;
}
DebugPrint(ERROR, DBG_INIT,"RTBTH_IOCDMAC: dmac.dmac_op=%d\n",
dmac.dmac_op);
if(dmac.dmac_op == 2){
DebugPrint(TRACE, DBG_MISC, "%s:kfifo reset ==>\n",
__func__);
kfifo_reset(gpAd->acl_fifo);
kfifo_reset(gpAd->hci_fifo);
kfifo_reset(gpAd->evt_fifo);
kfifo_reset(gpAd->sco_fifo);
kfifo_reset(gpAd->rx_fifo);
DebugPrint(TRACE, DBG_MISC, "%s:kfifo reset <== \n",
__func__);
}
if(dmac.dmac_op == 0){
RtbtResetPDMA(gpAd);
}
if(dmac.dmac_op == 1){
BthEnableRxTx(gpAd);
} else {
DebugPrint(ERROR, DBG_INIT,"No such the dma op = %d\n",
dmac.dmac_op);
}
}while(0);
break;
Now it is the pairing even more reliable. Paired 5 different devices
including bluetooth audio device.
Somehow the execution was not reaching this part:
if(dmac.dmac_op == 2){
DebugPrint(TRACE, DBG_MISC, "%s:kfifo reset ==>\n",
__func__);
kfifo_reset(gpAd->acl_fifo);
kfifo_reset(gpAd->hci_fifo);
kfifo_reset(gpAd->evt_fifo);
kfifo_reset(gpAd->sco_fifo);
kfifo_reset(gpAd->rx_fifo);
DebugPrint(TRACE, DBG_MISC, "%s:kfifo reset <== \n",
__func__);
}
It is the interrupt causing it?
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https://bugs.launchpad.net/bugs/1189721
Title:
Ralink RT3290 doesn't have a bluetooth driver
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https://bugs.launchpad.net/bluetooth/+bug/1189721/+subscriptions
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