From 5255fac387cf014be1da2f5b08310a64af130d99 Mon Sep 17 00:00:00 2001
From: wheremyfoodat <44909372+wheremyfoodat@users.noreply.github.com>
Date: Thu, 7 Sep 2023 18:22:26 +0300
Subject: [PATCH] Stub some more cam:u functions (#263)

* Stub some cam:u functions

* Update cam.cpp
---
 include/services/cam.hpp  |  3 +++
 src/core/services/cam.cpp | 42 ++++++++++++++++++++++++++++++++++++++-
 2 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/include/services/cam.hpp b/include/services/cam.hpp
index 97729209..611a3b6d 100644
--- a/include/services/cam.hpp
+++ b/include/services/cam.hpp
@@ -25,6 +25,9 @@ class CAMService {
 	void driverInitialize(u32 messagePointer);
 	void getMaxLines(u32 messagePointer);
 	void getBufferErrorInterruptEvent(u32 messagePointer);
+	void setContrast(u32 messagePointer);
+	void setFrameRate(u32 messagePointer);
+	void setTransferLines(u32 messagePointer);
 
   public:
 	CAMService(Memory& mem, Kernel& kernel) : mem(mem), kernel(kernel) {}
diff --git a/src/core/services/cam.cpp b/src/core/services/cam.cpp
index e0acab37..a0206077 100644
--- a/src/core/services/cam.cpp
+++ b/src/core/services/cam.cpp
@@ -6,7 +6,10 @@ namespace CAMCommands {
 	enum : u32 {
 		GetBufferErrorInterruptEvent = 0x00060040,
 		DriverInitialize = 0x00390000,
+		SetTransferLines = 0x00090100,
 		GetMaxLines = 0x000A0080,
+		SetFrameRate = 0x00200080,
+		SetContrast = 0x00230080,
 	};
 }
 
@@ -18,7 +21,12 @@ void CAMService::handleSyncRequest(u32 messagePointer) {
 		case CAMCommands::DriverInitialize: driverInitialize(messagePointer); break;
 		case CAMCommands::GetBufferErrorInterruptEvent: getBufferErrorInterruptEvent(messagePointer); break;
 		case CAMCommands::GetMaxLines: getMaxLines(messagePointer); break;
-		default: Helpers::panic("CAM service requested. Command: %08X\n", command);
+		case CAMCommands::SetContrast: setContrast(messagePointer); break;
+		case CAMCommands::SetFrameRate: setFrameRate(messagePointer); break;
+		case CAMCommands::SetTransferLines: setTransferLines(messagePointer); break;
+		default:
+			Helpers::panic("Unimplemented CAM service requested. Command: %08X\n", command);
+			break;
 	}
 }
 
@@ -28,6 +36,38 @@ void CAMService::driverInitialize(u32 messagePointer) {
 	mem.write32(messagePointer + 4, Result::Success);
 }
 
+void CAMService::setContrast(u32 messagePointer) {
+	const u32 cameraSelect = mem.read32(messagePointer + 4);
+	const u32 contrast = mem.read32(messagePointer + 8);
+
+	log("CAM::SetPhotoMode (camera select = %d, contrast = %d)\n", cameraSelect, contrast);
+
+	mem.write32(messagePointer, IPC::responseHeader(0x23, 1, 0));
+	mem.write32(messagePointer + 4, Result::Success);
+}
+
+void CAMService::setTransferLines(u32 messagePointer) {
+	const u32 port = mem.read32(messagePointer + 4);
+	const s16 lines = mem.read16(messagePointer + 8);
+	const s16 width = mem.read16(messagePointer + 12);
+	const s16 height = mem.read16(messagePointer + 16);
+
+	log("CAM::SetTransferLines (port = %d, lines = %d, width = %d, height = %d)\n", port, lines, width, height);
+
+	mem.write32(messagePointer, IPC::responseHeader(0x9, 1, 0));
+	mem.write32(messagePointer + 4, Result::Success);
+}
+
+void CAMService::setFrameRate(u32 messagePointer) {
+	const u32 cameraSelect = mem.read32(messagePointer + 4);
+	const u32 framerate = mem.read32(messagePointer + 8);
+
+	log("CAM::SetPhotoMode (camera select = %d, framerate = %d)\n", cameraSelect, framerate);
+
+	mem.write32(messagePointer, IPC::responseHeader(0x20, 1, 0));
+	mem.write32(messagePointer + 4, Result::Success);
+}
+
 // Algorithm taken from Citra
 // https://github.com/citra-emu/citra/blob/master/src/core/hle/service/cam/cam.cpp#L465
 void CAMService::getMaxLines(u32 messagePointer) {