57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
#include <3ds.h>
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#include <string.h>
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#include "firmlaunch.h"
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#include "termination.h"
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#include "task_runner.h"
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#include "util.h"
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static void *const g_firmlaunchParameters = (void *)0x12000000;
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void mapFirmlaunchParameters(void)
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{
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assertSuccess(svcKernelSetState(3, 0, g_firmlaunchParameters));
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}
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Result GetFirmlaunchParams(void *outParams, size_t size)
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{
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size = size >= 0x1000 ? 0x1000 : size;
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memcpy(outParams, g_firmlaunchParameters, size);
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return 0;
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}
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Result SetFirmlaunchParams(const void *params, size_t size)
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{
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size = size >= 0x1000 ? 0x1000 : size;
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memcpy(g_firmlaunchParameters, params, size);
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if (size < 0x1000) {
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memset(g_firmlaunchParameters + size, 0, 0x1000 - size);
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}
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return 0;
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}
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static void LaunchFirmAsync(void *argdata)
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{
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struct {
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u32 firmTidLow;
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} *args = argdata;
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terminateAllProcesses((u32)-1, 4 * 1000 * 1000 * 1000LL);
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// pm has dead code there (notification 0x179, but there's no 'caller process'... (-1))
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u64 firmTid = args->firmTidLow; // note: tidHigh doesn't matter
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firmTid = IS_N3DS ? (firmTid & ~N3DS_TID_MASK) | N3DS_TID_BIT : firmTid;
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assertSuccess(svcKernelSetState(0, firmTid));
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}
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Result LaunchFirm(u32 firmTidLow, const void *params, size_t size)
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{
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struct {
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u32 firmTidLow;
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} args = { firmTidLow };
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SetFirmlaunchParams(params, size);
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TaskRunner_RunTask(LaunchFirmAsync, &args, sizeof(args));
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return 0;
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}
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