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Code Issues Releases Activity

Gamecard usermode status change event.

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Useful to wait for gamecard status changes on other threads.
This commit is contained in:
Pablo Curiel 2020-05-03 04:40:08 -04:00
parent 109913cb18
commit 08b2aed130
2 changed files with 28 additions and 13 deletions
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33
source/gamecard.c
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@ -76,7 +76,7 @@ typedef struct {
/* Global variables. */
static Mutex g_gamecardMutex = 0;
static bool g_gamecardInitialized = false;
static bool g_gamecardInterfaceInit = false;
static FsDeviceOperator g_deviceOperator = {0};
static FsEventNotifier g_gameCardEventNotifier = {0};
@ -84,7 +84,7 @@ static Event g_gameCardKernelEvent = {0};
static bool g_openDeviceOperator = false, g_openEventNotifier = false, g_loadKernelEvent = false;
static thrd_t g_gameCardDetectionThread;
static UEvent g_gameCardDetectionThreadExitEvent = {0};
static UEvent g_gameCardDetectionThreadExitEvent = {0}, g_gameCardStatusChangeEvent = {0};
static bool g_gameCardDetectionThreadCreated = false, g_gameCardInserted = false, g_gameCardInfoLoaded = false;
static FsGameCardHandle g_gameCardHandle = {0};
@ -133,7 +133,7 @@ bool gamecardInitialize(void)
Result rc = 0;
bool ret = g_gamecardInitialized;
bool ret = g_gamecardInterfaceInit;
if (ret) goto out;
/* Allocate memory for the gamecard read buffer */
@ -175,17 +175,15 @@ bool gamecardInitialize(void)
g_loadKernelEvent = true;
/* Create usermode exit event */
ueventCreate(&g_gameCardDetectionThreadExitEvent, false);
ueventCreate(&g_gameCardDetectionThreadExitEvent, true);
/* Create usermode gamecard status change event */
ueventCreate(&g_gameCardStatusChangeEvent, true);
/* Create gamecard detection thread */
g_gameCardDetectionThreadCreated = gamecardCreateDetectionThread();
if (!g_gameCardDetectionThreadCreated)
{
LOGFILE("Failed to create gamecard detection thread!");
goto out;
}
if (!(g_gameCardDetectionThreadCreated = gamecardCreateDetectionThread())) goto out;
ret = g_gamecardInitialized = true;
ret = g_gamecardInterfaceInit = true;
out:
mutexUnlock(&g_gamecardMutex);
@ -232,11 +230,19 @@ void gamecardExit(void)
g_gameCardReadBuf = NULL;
}
g_gamecardInitialized = false;
g_gamecardInterfaceInit = false;
mutexUnlock(&g_gamecardMutex);
}
UEvent *gamecardGetStatusChangeUserEvent(void)
{
mutexLock(&g_gamecardMutex);
UEvent *event = (g_gamecardInterfaceInit ? &g_gameCardStatusChangeEvent : NULL);
mutexUnlock(&g_gamecardMutex);
return event;
}
bool gamecardIsReady(void)
{
bool ret = false;
@ -524,6 +530,7 @@ static int gamecardDetectionThreadFunc(void *arg)
/* Load gamecard info right away if a gamecard is inserted */
g_gameCardInserted = prev_status = gamecardIsInserted();
if (g_gameCardInserted) gamecardLoadInfo();
ueventSignal(&g_gameCardStatusChangeEvent);
while(true)
{
@ -555,6 +562,8 @@ static int gamecardDetectionThreadFunc(void *arg)
prev_status = g_gameCardInserted;
mutexUnlock(&g_gamecardMutex);
ueventSignal(&g_gameCardStatusChangeEvent);
}
/* Free gamecard info and close gamecard handle */

8
source/gamecard.h
View file

@ -19,6 +19,7 @@
#ifndef __GAMECARD_H__
#define __GAMECARD_H__
#include <switch/kernel/uevent.h>
#include "fs_ext.h"
#define GAMECARD_HEAD_MAGIC 0x48454144 /* "HEAD" */
@ -134,7 +135,12 @@ bool gamecardInitialize(void);
/// This includes destroying the background gamecard detection thread and freeing all cached gamecard data.
void gamecardExit(void);
/// Used to check if a gamecard has been inserted and if info could be loaded from it.
/// Returns an usermode gamecard status change event that can be used to wait for status changes on other threads.
/// If the gamecard interface hasn't been initialized, this returns NULL.
UEvent *gamecardGetStatusChangeUserEvent(void);
/// Used to check if a gamecard has been inserted and if info could be loaded from it (e.g. physical storage access is possible).
/// If this call returns false, it pretty much means nothing can be done with the inserted gamecard.
bool gamecardIsReady(void);
/// Used to read data from the inserted gamecard.