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Write the pullup value only if new value applied

Browse Source 
Also, remove the non-existing paths and set the initial value of
mUsbDataEnabled.

Bug: 221009551
Test: build, boot
Signed-off-by: Jimmy Hu <hhhuuu@google.com>
Change-Id: Ia44923b13d7a6a381d0024df4e7af5ac0667f0ef
This commit is contained in:
Jimmy Hu
2022-05-24 07:36:17 +00:00
parent cb01b82b5a
commit d968247718
2 changed files with 23 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
usb/usb/Usb.cpp
View File

@@ -61,40 +61,41 @@ ScopedAStatus Usb::enableUsbData(const string& in_portName, bool in_enable,
int64_t in_transactionId) {
bool result = true;
std::vector<PortStatus> currentPortStatus;
string pullup;
ALOGI("Userspace turn %s USB data signaling. opID:%ld", in_enable ? "on" : "off",
in_transactionId);
if (in_enable) {
if (ReadFileToString(PULLUP_PATH, &pullup)) {
pullup = Trim(pullup);
if (pullup != kGadgetName) {
if (!WriteStringToFile(kGadgetName, PULLUP_PATH)) {
ALOGE("Gadget cannot be pulled up");
result = false;
}
}
}
if (!WriteStringToFile("1", USB_DATA_PATH)) {
ALOGE("Not able to turn on usb connection notification");
result = false;
}
if (!WriteStringToFile(kGadgetName, PULLUP_PATH)) {
ALOGE("Gadget cannot be pulled up");
result = false;
}
} else {
if (!WriteStringToFile("1", ID_PATH)) {
ALOGE("Not able to turn off host mode");
result = false;
}
if (!WriteStringToFile("0", VBUS_PATH)) {
ALOGE("Not able to set Vbus state");
result = false;
if (ReadFileToString(PULLUP_PATH, &pullup)) {
pullup = Trim(pullup);
if (pullup == kGadgetName) {
if (!WriteStringToFile("none", PULLUP_PATH)) {
ALOGE("Gadget cannot be pulled down");
result = false;
}
}
}
if (!WriteStringToFile("0", USB_DATA_PATH)) {
ALOGE("Not able to turn on usb connection notification");
result = false;
}
if (!WriteStringToFile("none", PULLUP_PATH)) {
ALOGE("Gadget cannot be pulled down");
result = false;
}
}
if (result) {
@@ -367,7 +368,8 @@ Usb::Usb()
: mLock(PTHREAD_MUTEX_INITIALIZER),
mRoleSwitchLock(PTHREAD_MUTEX_INITIALIZER),
mPartnerLock(PTHREAD_MUTEX_INITIALIZER),
mPartnerUp(false) {
mPartnerUp(false),
mUsbDataEnabled(true) {
pthread_condattr_t attr;
if (pthread_condattr_init(&attr)) {
ALOGE("pthread_condattr_init failed: %s", strerror(errno));
@@ -612,7 +614,7 @@ Status getPortStatusHelper(android::hardware::usb::Usb *usb,
} else {
(*currentPortStatus)[i].usbDataStatus.push_back(UsbDataStatus::ENABLED);
}
(*currentPortStatus)[i].powerBrickStatus = PowerBrickStatus::UNKNOWN;
(*currentPortStatus)[i].powerBrickStatus = PowerBrickStatus::UNKNOWN;
ALOGI("%d:%s connected:%d canChangeMode:%d canChagedata:%d canChangePower:%d "
"usbDataEnabled:%d",
@@ -627,6 +629,7 @@ Status getPortStatusHelper(android::hardware::usb::Usb *usb,
done:
return Status::ERROR;
}
Status queryPowerTransferStatus(std::vector<PortStatus> *currentPortStatus) {
string enabled;

2
usb/usb/Usb.h
View File

@@ -43,11 +43,9 @@ using ::std::shared_ptr;
using ::std::string;
constexpr char kGadgetName[] = "a600000.dwc3";
#define ID_PATH SOC_PATH "id"
#define PULLUP_PATH "/config/usb_gadget/g1/UDC"
#define SOC_PATH "/sys/devices/platform/soc/a600000.ssusb/"
#define USB_DATA_PATH SOC_PATH "usb_data_enabled"
#define VBUS_PATH SOC_PATH "b_sess"
#define USB_POWER_LIMIT_PATH "/sys/devices/platform/soc/c440000.qcom,spmi/spmi-0/spmi0-02/c440000.qcom,spmi:qcom,pm7250b@2:qcom,usb-pdphy@1700/usbpd0/"
#define SINK_CURRENT_LIMIT_PATH USB_POWER_LIMIT_PATH "usb_limit_sink_current"