display: basic implementation of displa refresh changing

Source/sys-clk/common/include/display_refresh_rate.h

@@ -0,0 +1,127 @@
+// display_refresh_rate.h
+#ifndef DISPLAY_REFRESH_RATE_H
+#define DISPLAY_REFRESH_RATE_H
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stddef.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Display mode structures
+typedef struct {
+    uint16_t hFrontPorch;
+    uint8_t hSyncWidth;
+    uint8_t hBackPorch;
+    uint8_t vFrontPorch;
+    uint8_t vSyncWidth;
+    uint8_t vBackPorch;
+    uint8_t VIC;
+    uint32_t pixelClock_kHz;
+} DockedTimings;
+
+typedef struct {
+    uint8_t hSyncWidth;
+    uint16_t hFrontPorch;
+    uint8_t hBackPorch;
+    uint8_t vSyncWidth;
+    uint16_t vFrontPorch;
+    uint8_t vBackPorch;
+    uint32_t pixelClock_kHz;
+} HandheldTimings;
+
+typedef struct {
+    uint8_t min;
+    uint8_t max;
+} MinMaxRefreshRate;
+
+// Display mode information
+typedef struct {
+    uint32_t unk0;
+    uint32_t hActive;
+    uint32_t vActive;
+    uint32_t hSyncWidth;
+    uint32_t vSyncWidth;
+    uint32_t hFrontPorch;
+    uint32_t vFrontPorch;
+    uint32_t hBackPorch;
+    uint32_t vBackPorch;
+    uint32_t pclkKHz;
+    uint32_t bitsPerPixel;
+    uint32_t vmode;
+    uint32_t sync;
+    uint32_t unk1;
+    uint32_t reserved;
+} NvdcMode2;
+
+typedef struct {
+    NvdcMode2 modes[201];
+    uint32_t num_modes;
+} NvdcModeDB2;
+
+// PLL structures
+typedef struct {
+    unsigned int PLLD_DIVM: 8;
+    unsigned int reserved_1: 3;
+    unsigned int PLLD_DIVN: 8;
+    unsigned int reserved_2: 1;
+    unsigned int PLLD_DIVP: 3;
+    unsigned int CSI_CLK_SRC: 1;
+    unsigned int reserved_3: 1;
+    unsigned int PLL_D: 1;
+    unsigned int reserved_4: 1;
+    unsigned int PLLD_LOCK: 1;
+    unsigned int reserved_5: 1;
+    unsigned int PLLD_REF_DIS: 1;
+    unsigned int PLLD_ENABLE: 1;
+    unsigned int PLLD_BYPASS: 1;
+} PLLD_BASE;
+
+typedef struct {
+    signed int PLLD_SDM_DIN: 16;
+    unsigned int PLLD_EN_SDM: 1;
+    unsigned int PLLD_LOCK_OVERRIDE: 1;
+    unsigned int PLLD_EN_LCKDET: 1;
+    unsigned int PLLD_FREQLOCK: 1;
+    unsigned int PLLD_IDDQ: 1;
+    unsigned int PLLD_ENABLE_CLK: 1;
+    unsigned int PLLD_KVCO: 1;
+    unsigned int PLLD_KCP: 2;
+    unsigned int PLLD_PTS: 2;
+    unsigned int PLLD_LDPULSE_ADJ: 3;
+    unsigned int reserved: 2;
+} PLLD_MISC;
+
+// Configuration structure
+typedef struct {
+    uint64_t clkVirtAddr;
+    uint64_t dsiVirtAddr;
+    bool isDocked;
+    bool isLite;
+    bool isRetroSUPER;
+    bool isPossiblySpoofedRetro;
+    bool dontForce60InDocked;
+    bool matchLowestDocked;
+    bool displaySync;
+    bool displaySyncOutOfFocus60;
+    bool displaySyncDocked;
+    bool displaySyncDockedOutOfFocus60;
+} DisplayRefreshConfig;
+
+// Callback types for hardware access (compatible with libnx Result types)
+
+// Public API functions
+bool DisplayRefresh_Initialize(const DisplayRefreshConfig* config);
+bool DisplayRefresh_SetRate(uint32_t new_refreshRate);
+bool DisplayRefresh_GetRate(uint32_t* out_refreshRate, bool internal);
+uint8_t DisplayRefresh_GetDockedHighestAllowed(void);
+void DisplayRefresh_CorrectOledGamma(uint32_t refresh_rate);
+void DisplayRefresh_SetAllowedDockedRatesIPC(uint32_t refreshRates, bool is720p);
+void DisplayRefresh_Shutdown(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // DISPLAY_REFRESH_RATE_H

Source/sys-clk/common/include/sysclk/board.h

@@ -77,6 +77,7 @@ typedef enum
     SysClkModule_GPU,
     SysClkModule_MEM,
     HorizonOCModule_Governor,
+    HorizonOCModule_LCD,
     SysClkModule_EnumMax,
 } SysClkModule;