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BT HAL H4 write flow am: 92afd74a15 am: 2b1413fd87 am: 541859599d

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am: 9830ed5ae9

Change-Id: I87aee3462a5bc532933cc0fd86896d1c8b02ddb4
This commit is contained in:
Peng Qi 2017-07-06 17:08:24 +00:00 committed by android-build-merger
commit 0d608ecd04
1 changed files with 16 additions and 5 deletions
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21
bluetooth/1.0/default/h4_protocol.cc
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@ -18,8 +18,10 @@
#define LOG_TAG "android.hardware.bluetooth-hci-h4"
#include <android-base/logging.h>
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <log/log.h>
#include <sys/uio.h>
namespace android {
namespace hardware {
@ -27,11 +29,20 @@ namespace bluetooth {
namespace hci {
size_t H4Protocol::Send(uint8_t type, const uint8_t* data, size_t length) {
int rv = WriteSafely(uart_fd_, &type, sizeof(type));
if (rv == sizeof(type)) {
rv = WriteSafely(uart_fd_, data, length);
struct iovec iov[] = {{&type, sizeof(type)},
{const_cast<uint8_t*>(data), length}};
ssize_t ret = 0;
do {
ret = TEMP_FAILURE_RETRY(writev(uart_fd_, iov, sizeof(iov) / sizeof(iov[0])));
} while (-1 == ret && EAGAIN == errno);
if (ret == -1) {
ALOGE("%s error writing to UART (%s)", __func__, strerror(errno));
} else if (ret == 0) {
// Nothing written :(
ALOGE("%s zero bytes written - something went wrong...", __func__);
}
return rv;
return ret;
}
void H4Protocol::OnPacketReady() {