[FREELDR] Formatting only.

[reactos.git] / boot / freeldr / freeldr / arch / i386 / machxbox.c

diff --git a/boot/freeldr/freeldr/arch/i386/machxbox.c b/boot/freeldr/freeldr/arch/i386/machxbox.c
index 7dffa2b..c649622 100644 (file)
--- a/boot/freeldr/freeldr/arch/i386/machxbox.c
+++ b/boot/freeldr/freeldr/arch/i386/machxbox.c
@@ -19,10 +19,76 @@
 #include <freeldr.h>
 
 #include <debug.h>
-
 DBG_DEFAULT_CHANNEL(HWDETECT);
 
 
+BOOLEAN
+XboxFindPciBios(PPCI_REGISTRY_INFO BusData)
+{
+    /* We emulate PCI BIOS here, there are 2 known working PCI buses on an original Xbox */
+
+    BusData->NoBuses = 2;
+    BusData->MajorRevision = 1;
+    BusData->MinorRevision = 0;
+    BusData->HardwareMechanism = 1;
+    return TRUE;
+}
+
+extern
+VOID
+DetectSerialPointerPeripheral(PCONFIGURATION_COMPONENT_DATA ControllerKey, PUCHAR Base);
+
+static
+ULONG
+XboxGetSerialPort(ULONG Index, PULONG Irq)
+{
+    /*
+     * Xbox may have maximum two Serial COM ports
+     * if the Super I/O chip is connected via LPC
+     */
+    static const UCHAR Device[MAX_XBOX_COM_PORTS] = {LPC_DEVICE_SERIAL_PORT_1, LPC_DEVICE_SERIAL_PORT_2};
+    ULONG ComBase = 0;
+
+    // Enter Configuration
+    WRITE_PORT_UCHAR(LPC_IO_BASE, LPC_ENTER_CONFIG_KEY);
+
+    // Select serial device
+    WRITE_PORT_UCHAR(LPC_IO_BASE, LPC_CONFIG_DEVICE_NUMBER);
+    WRITE_PORT_UCHAR(LPC_IO_BASE + 1, Device[Index]);
+
+    // Check if selected device is active
+    WRITE_PORT_UCHAR(LPC_IO_BASE, LPC_CONFIG_DEVICE_ACTIVATE);
+    if (READ_PORT_UCHAR(LPC_IO_BASE + 1) == 1)
+    {
+        // Read LSB
+        WRITE_PORT_UCHAR(LPC_IO_BASE, LPC_CONFIG_DEVICE_BASE_ADDRESS_LOW);
+        ComBase = READ_PORT_UCHAR(LPC_IO_BASE + 1);
+        // Read MSB
+        WRITE_PORT_UCHAR(LPC_IO_BASE, LPC_CONFIG_DEVICE_BASE_ADDRESS_HIGH);
+        ComBase |= (READ_PORT_UCHAR(LPC_IO_BASE + 1) << 8);
+        // Read IRQ
+        WRITE_PORT_UCHAR(LPC_IO_BASE, LPC_CONFIG_DEVICE_INTERRUPT);
+        *Irq = READ_PORT_UCHAR(LPC_IO_BASE + 1);
+    }
+
+    // Exit Configuration
+    WRITE_PORT_UCHAR(LPC_IO_BASE, LPC_EXIT_CONFIG_KEY);
+
+    return ComBase;
+}
+
+extern
+VOID
+DetectSerialPorts(PCONFIGURATION_COMPONENT_DATA BusKey, GET_SERIAL_PORT MachGetSerialPort, ULONG Count);
+
+VOID
+XboxGetExtendedBIOSData(PULONG ExtendedBIOSDataArea, PULONG ExtendedBIOSDataSize)
+{
+    TRACE("XboxGetExtendedBIOSData(): UNIMPLEMENTED\n");
+    *ExtendedBIOSDataArea = 0;
+    *ExtendedBIOSDataSize = 0;
+}
+
 // NOTE: Similar to machpc.c!PcGetHarddiskConfigurationData(),
 // but without extended geometry support.
 static
@@ -135,10 +201,27 @@ DetectIsaBios(PCONFIGURATION_COMPONENT_DATA SystemKey, ULONG *BusNumber)
 
     /* Detect ISA/BIOS devices */
     DetectBiosDisks(SystemKey, BusKey);
+    DetectSerialPorts(BusKey, XboxGetSerialPort, MAX_XBOX_COM_PORTS);
 
     /* FIXME: Detect more ISA devices */
 }
 
+static
+UCHAR
+XboxGetFloppyCount(VOID)
+{
+    /* On a PC we use CMOS/RTC I/O ports 0x70 and 0x71 to detect floppies.
+     * However an Xbox CMOS memory range [0x10, 0x70) and [0x80, 0x100)
+     * is filled with 0x55 0xAA 0x55 0xAA ... byte pattern which is used
+     * to validate the date/time settings by Xbox OS.
+     *
+     * Technically it's possible to connect a floppy drive to Xbox, but
+     * CMOS detection method should not be used here. */
+
+    WARN("XboxGetFloppyCount() is UNIMPLEMENTED, returning 0\n");
+    return 0;
+}
+
 PCONFIGURATION_COMPONENT_DATA
 XboxHwDetect(VOID)
 {
@@ -151,8 +234,10 @@ XboxHwDetect(VOID)
     FldrCreateSystemKey(&SystemKey);
 
     GetHarddiskConfigurationData = XboxGetHarddiskConfigurationData;
+    FindPciBios = XboxFindPciBios;
 
     /* TODO: Build actual xbox's hardware configuration tree */
+    DetectPciBios(SystemKey, &BusNumber);
     DetectIsaBios(SystemKey, &BusNumber);
 
     TRACE("DetectHardware() Done\n");
@@ -185,6 +270,8 @@ XboxMachInit(const char *CmdLine)
     MachVtbl.VideoSetDisplayMode = XboxVideoSetDisplayMode;
     MachVtbl.VideoGetDisplaySize = XboxVideoGetDisplaySize;
     MachVtbl.VideoGetBufferSize = XboxVideoGetBufferSize;
+    MachVtbl.VideoGetFontsFromFirmware = XboxVideoGetFontsFromFirmware;
+    MachVtbl.VideoSetTextCursorPosition = XboxVideoSetTextCursorPosition;
     MachVtbl.VideoHideShowTextCursor = XboxVideoHideShowTextCursor;
     MachVtbl.VideoPutChar = XboxVideoPutChar;
     MachVtbl.VideoCopyOffScreenBufferToVRAM = XboxVideoCopyOffScreenBufferToVRAM;
@@ -195,6 +282,8 @@ XboxMachInit(const char *CmdLine)
     MachVtbl.Beep = PcBeep;
     MachVtbl.PrepareForReactOS = XboxPrepareForReactOS;
     MachVtbl.GetMemoryMap = XboxMemGetMemoryMap;
+    MachVtbl.GetExtendedBIOSData = XboxGetExtendedBIOSData;
+    MachVtbl.GetFloppyCount = XboxGetFloppyCount;
     MachVtbl.DiskGetBootPath = DiskGetBootPath;
     MachVtbl.DiskReadLogicalSectors = XboxDiskReadLogicalSectors;
     MachVtbl.DiskGetDriveGeometry = XboxDiskGetDriveGeometry;
@@ -204,17 +293,15 @@ XboxMachInit(const char *CmdLine)
     MachVtbl.HwDetect = XboxHwDetect;
     MachVtbl.HwIdle = XboxHwIdle;
 
-    DiskGetPartitionEntry = XboxDiskGetPartitionEntry;
-
     /* Set LEDs to orange after init */
     XboxSetLED("oooo");
 }
 
 VOID
-XboxPrepareForReactOS(IN BOOLEAN Setup)
+XboxPrepareForReactOS(VOID)
 {
     /* On XBOX, prepare video and turn off the floppy motor */
-    XboxVideoPrepareForReactOS(Setup);
+    XboxVideoPrepareForReactOS();
     DiskStopFloppyMotor();
 }