sysclk: code cleanup and fan speed

also fix incompatibility with nx fancontrol

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

@@ -0,0 +1,260 @@
+/*
+ * Battery Info Driver for Nintendo Switch
+ * Single-header library for accessing battery information
+ * 
+ * Usage:
+ *   #define BATTERY_INFO_IMPLEMENTATION
+ *   #include "battery_info.h"
+ */
+
+#pragma once
+#include <switch.h>
+#include <inttypes.h>
+#include <string.h>
+// Battery charging flags
+typedef enum {
+    BatteryFlag_NoHub  = BIT(0),  // Hub is disconnected
+    BatteryFlag_Rail   = BIT(8),  // At least one Joy-con is charging from rail
+    BatteryFlag_SPDSRC = BIT(12), // OTG
+    BatteryFlag_ACC    = BIT(16)  // Accessory
+} BatteryChargeFlags;
+
+// Power Delivery Controller State (BM92T series)
+typedef enum {
+    PDState_NewPDO      = 1, // Received new Power Data Object
+    PDState_NoPD        = 2, // No Power Delivery source is detected
+    PDState_AcceptedRDO = 3  // Received and accepted Request Data Object
+} BatteryPDControllerState;
+
+// Charger type detection
+typedef enum {
+    ChargerType_None         = 0,
+    ChargerType_PD           = 1,
+    ChargerType_TypeC_1500mA = 2,
+    ChargerType_TypeC_3000mA = 3,
+    ChargerType_DCP          = 4, // Dedicated Charging Port
+    ChargerType_CDP          = 5, // Charging Downstream Port
+    ChargerType_SDP          = 6, // Standard Downstream Port
+    ChargerType_Apple_500mA  = 7,
+    ChargerType_Apple_1000mA = 8,
+    ChargerType_Apple_2000mA = 9
+} BatteryChargerType;
+
+// Power role (USB Power Delivery)
+typedef enum {
+    PowerRole_Sink   = 1, // Device is receiving power
+    PowerRole_Source = 2  // Device is providing power
+} BatteryPowerRole;
+
+// Complete battery charge information structure
+typedef struct {
+    int32_t InputCurrentLimit;       // Input (Sink) current limit in mA
+    int32_t VBUSCurrentLimit;        // Output (Source/VBUS/OTG) current limit in mA
+    int32_t ChargeCurrentLimit;      // Battery charging current limit in mA
+    int32_t ChargeVoltageLimit;      // Battery charging voltage limit in mV
+    int32_t unk_x10;                 // Unknown field (possibly enum)
+    int32_t unk_x14;                 // Unknown field (possibly flags)
+    BatteryPDControllerState PDControllerState; // PD Controller State
+    int32_t BatteryTemperature;      // Battery temperature in milli-Celsius
+    int32_t RawBatteryCharge;        // Battery charge in per cent-mille (100% = 100000)
+    int32_t VoltageAvg;              // Average voltage in mV
+    int32_t BatteryAge;              // Battery health (capacity full/design) in pcm
+    BatteryPowerRole PowerRole;      // Current power role
+    BatteryChargerType ChargerType;  // Type of charger connected
+    int32_t ChargerVoltageLimit;     // Charger voltage limit in mV
+    int32_t ChargerCurrentLimit;     // Charger current limit in mA
+    BatteryChargeFlags Flags;        // Various status flags
+} BatteryChargeInfo;
+
+// Helper macro to check if battery charging is enabled
+#define IS_BATTERY_CHARGING_ENABLED(info) (((info)->unk_x14 >> 8) & 1)
+
+// Initialize the battery info driver
+Result batteryInfoInitialize(void);
+
+// Cleanup the battery info driver
+void batteryInfoExit(void);
+
+// Get complete battery charge information
+Result batteryInfoGetChargeInfo(BatteryChargeInfo *out);
+
+// Get battery charge percentage (0-100)
+Result batteryInfoGetChargePercentage(u32 *out);
+
+// Check if enough power is being supplied
+Result batteryInfoIsEnoughPowerSupplied(bool *out);
+
+// Battery charge control functions
+Result batteryInfoEnableCharging(void);
+Result batteryInfoDisableCharging(void);
+Result batteryInfoEnableFastCharging(void);
+Result batteryInfoDisableFastCharging(void);
+
+// Helper functions to get human-readable strings
+const char* batteryInfoGetChargerTypeString(BatteryChargerType type);
+const char* batteryInfoGetPowerRoleString(BatteryPowerRole role);
+const char* batteryInfoGetPDStateString(BatteryPDControllerState state);
+
+// Convenience functions for common values
+static inline int batteryInfoGetTemperatureMiliCelsius(BatteryChargeInfo *info) {
+    return info->BatteryTemperature;
+}
+
+static inline float batteryInfoGetChargePercent(BatteryChargeInfo *info) {
+    return (float)info->RawBatteryCharge / 1000.0f;
+}
+
+static inline float batteryInfoGetBatteryHealthPercent(BatteryChargeInfo *info) {
+    return (float)info->BatteryAge / 1000.0f;
+}
+
+static inline bool batteryInfoIsCharging(BatteryChargeInfo *info) {
+    return IS_BATTERY_CHARGING_ENABLED(info);
+}
+
+// String lookup tables
+static const char* s_chargerTypeStrings[] = {
+    "None",
+    "Power Delivery",
+    "USB-C @ 1.5A",
+    "USB-C @ 3.0A",
+    "USB-DCP",
+    "USB-CDP",
+    "USB-SDP",
+    "Apple @ 0.5A",
+    "Apple @ 1.0A",
+    "Apple @ 2.0A",
+};
+
+static const char* s_powerRoleStrings[] = {
+    "Unknown",
+    "Sink",
+    "Source",
+};
+
+static const char* s_pdStateStrings[] = {
+    "Unknown",
+    "New PDO Received",
+    "No PD Source",
+    "RDO Accepted"
+};
+
+// Internal PSM service handle
+static Service g_psmService = {0};
+static bool g_batteryInfoInitialized = false;
+
+// Internal PSM command implementations
+static Result psmGetBatteryChargeInfoFields(BatteryChargeInfo *out) {
+    if (!g_batteryInfoInitialized)
+        return MAKERESULT(Module_Libnx, LibnxError_NotInitialized);
+    
+    return serviceDispatchOut(&g_psmService, 17, *out);
+}
+
+static Result psmEnableBatteryCharging_internal(void) {
+    if (!g_batteryInfoInitialized)
+        return MAKERESULT(Module_Libnx, LibnxError_NotInitialized);
+    
+    return serviceDispatch(&g_psmService, 2);
+}
+
+static Result psmDisableBatteryCharging_internal(void) {
+    if (!g_batteryInfoInitialized)
+        return MAKERESULT(Module_Libnx, LibnxError_NotInitialized);
+    
+    return serviceDispatch(&g_psmService, 3);
+}
+
+static Result psmEnableFastBatteryCharging_internal(void) {
+    if (!g_batteryInfoInitialized)
+        return MAKERESULT(Module_Libnx, LibnxError_NotInitialized);
+    
+    return serviceDispatch(&g_psmService, 10);
+}
+
+static Result psmDisableFastBatteryCharging_internal(void) {
+    if (!g_batteryInfoInitialized)
+        return MAKERESULT(Module_Libnx, LibnxError_NotInitialized);
+    
+    return serviceDispatch(&g_psmService, 11);
+}
+
+// Public API implementations
+Result batteryInfoInitialize(void) {
+    if (g_batteryInfoInitialized)
+        return 0;
+    
+    Result rc = psmInitialize();
+    if (R_SUCCEEDED(rc)) {
+        memcpy(&g_psmService, psmGetServiceSession(), sizeof(Service));
+        g_batteryInfoInitialized = true;
+    }
+    
+    return rc;
+}
+
+void batteryInfoExit(void) {
+    if (g_batteryInfoInitialized) {
+        psmExit();
+        memset(&g_psmService, 0, sizeof(Service));
+        g_batteryInfoInitialized = false;
+    }
+}
+
+Result batteryInfoGetChargeInfo(BatteryChargeInfo *out) {
+    if (!out)
+        return MAKERESULT(Module_Libnx, LibnxError_BadInput);
+    
+    return psmGetBatteryChargeInfoFields(out);
+}
+
+Result batteryInfoGetChargePercentage(u32 *out) {
+    if (!g_batteryInfoInitialized)
+        return MAKERESULT(Module_Libnx, LibnxError_NotInitialized);
+    
+    return psmGetBatteryChargePercentage(out);
+}
+
+Result batteryInfoIsEnoughPowerSupplied(bool *out) {
+    if (!g_batteryInfoInitialized)
+        return MAKERESULT(Module_Libnx, LibnxError_NotInitialized);
+    
+    return psmIsEnoughPowerSupplied(out);
+}
+
+Result batteryInfoEnableCharging(void) {
+    return psmEnableBatteryCharging_internal();
+}
+
+Result batteryInfoDisableCharging(void) {
+    return psmDisableBatteryCharging_internal();
+}
+
+Result batteryInfoEnableFastCharging(void) {
+    return psmEnableFastBatteryCharging_internal();
+}
+
+Result batteryInfoDisableFastCharging(void) {
+    return psmDisableFastBatteryCharging_internal();
+}
+
+const char* batteryInfoGetChargerTypeString(BatteryChargerType type) {
+    if (type < 0 || type > ChargerType_Apple_2000mA)
+        return "Unknown";
+    
+    return s_chargerTypeStrings[type];
+}
+
+const char* batteryInfoGetPowerRoleString(BatteryPowerRole role) {
+    if (role < PowerRole_Sink || role > PowerRole_Source)
+        return s_powerRoleStrings[0];
+    
+    return s_powerRoleStrings[role];
+}
+
+const char* batteryInfoGetPDStateString(BatteryPDControllerState state) {
+    if (state < PDState_NewPDO || state > PDState_AcceptedRDO)
+        return s_pdStateStrings[0];
+    
+    return s_pdStateStrings[state];
+}

Source/sys-clk/common/include/i2c.h

@@ -0,0 +1,57 @@
+#pragma once
+
+#include <switch.h>
+
+// To use i2c service, sm and i2c should be intialized via smInitialize() and i2cInitialize().
+
+Result I2cSet_U8(I2cDevice dev, u8 reg, u8 val);
+
+Result I2cRead_OutU8(I2cDevice dev, u8 reg, u8 *out);
+Result I2cRead_OutU16(I2cDevice dev, u8 reg, u16 *out);
+
+// Max17050 fuel gauge
+float I2c_Max17050_GetBatteryCurrent();
+
+const u8 MAX17050_CURRENT_REG = 0x0A;
+
+// Buck Converter
+typedef enum I2c_BuckConverter_Reg {
+    I2c_Max77620_SD1VOLT_REG = 0x17, // Used for Erista DDR VDDQ+VDD2 / Mariko VDD2
+    I2c_Max77621_VOLT_REG    = 0x00,
+    I2c_Max77812_CPUVOLT_REG = 0x26,
+    I2c_Max77812_GPUVOLT_REG = 0x23,
+    I2c_Max77812_MEMVOLT_REG = 0x25, // Master 3 (GPU 1 + 2, DRAM 3, CPU 4), used for Mariko VDDQ
+} I2c_BuckConverter_Reg;
+
+typedef struct I2c_BuckConverter_Domain {
+    I2cDevice device;
+    I2c_BuckConverter_Reg reg;
+    u8 volt_mask;
+    u32 uv_step;
+    u32 uv_min;
+    u32 uv_max;
+    u8 por_val;
+} I2c_BuckConverter_Domain;
+
+const I2c_BuckConverter_Domain I2c_Erista_CPU       = { I2cDevice_Max77621Cpu,  I2c_Max77621_VOLT_REG,    0x7F,  6250, 606250, 1400000, };
+const I2c_BuckConverter_Domain I2c_Erista_GPU       = { I2cDevice_Max77621Gpu,  I2c_Max77621_VOLT_REG,    0x7F,  6250, 606250, 1400000, };
+const I2c_BuckConverter_Domain I2c_Erista_DRAM      = { I2cDevice_Max77620Pmic, I2c_Max77620_SD1VOLT_REG, 0x7F, 12500, 600000, 1250000, };
+const I2c_BuckConverter_Domain I2c_Mariko_CPU       = { I2cDevice_Max77812_2,   I2c_Max77812_CPUVOLT_REG, 0xFF,  5000, 250000, 1525000, 0x78 };
+const I2c_BuckConverter_Domain I2c_Mariko_GPU       = { I2cDevice_Max77812_2,   I2c_Max77812_GPUVOLT_REG, 0xFF,  5000, 250000, 1525000, 0x78 };
+const I2c_BuckConverter_Domain I2c_Mariko_DRAM_VDDQ = { I2cDevice_Max77812_2,   I2c_Max77812_MEMVOLT_REG, 0xFF,  5000, 250000,  700000, 0x78 };
+const I2c_BuckConverter_Domain I2c_Mariko_DRAM_VDD2 = { I2cDevice_Max77620Pmic, I2c_Max77620_SD1VOLT_REG, 0x7F, 12500, 600000, 1250000, };
+
+u32 I2c_BuckConverter_GetMvOut(const I2c_BuckConverter_Domain* domain);
+Result I2c_BuckConverter_SetMvOut(const I2c_BuckConverter_Domain* domain, u32 mvolt);
+
+// Bq24193 Battery management
+u32 I2c_Bq24193_Convert_Raw_mA(u8 raw);
+u8  I2c_Bq24193_Convert_mA_Raw(u32 ma);
+
+Result I2c_Bq24193_GetFastChargeCurrentLimit(u32 *ma);
+Result I2c_Bq24193_SetFastChargeCurrentLimit(u32 ma);
+
+const u32 MA_RANGE_MIN = 512;
+const u32 MA_RANGE_MAX = 4544;
+
+const u8 BQ24193_CHARGE_CURRENT_CONTROL_REG = 0x2;

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

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <string>
+#include <ctime>
+#include <cstdio>
+
+static void writeNotification(const std::string& message) {
+        const char* flagPath = "sdmc:/config/ultrahand/flags/NOTIFICATIONS.flag";
+
+        FILE* flagFile = fopen(flagPath, "r");
+        if (!flagFile) {
+            return;
+        }
+        fclose(flagFile);
+
+        std::string filename = "Horizon OC -" + std::to_string(std::time(nullptr)) + ".notify";
+        std::string fullPath = "sdmc:/config/ultrahand/notifications/" + filename;
+
+        FILE* file = fopen(fullPath.c_str(), "w");
+        if (file) {
+            fprintf(file, "{\n");
+            fprintf(file, "  \"text\": \"%s\",\n", message.c_str());
+            fprintf(file, "  \"fontSize\": 28\n");
+            fprintf(file, "}\n");
+            fclose(file);
+        }
+    }

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

@@ -0,0 +1,95 @@
+#pragma once
+/*
+ * SDx actual min is 625 mV. Multipliers 0/1 reserved.
+ * SD0 max is 1400 mV
+ * SD1 max is 1550 mV
+ * SD2 max is 3787.5 mV
+ * SD3 max is 3787.5 mV
+ */
+
+/*
+* Switch Power domains (max77620):
+* Name  | Usage         | uV step | uV min | uV default | uV max  | Init
+*-------+---------------+---------+--------+------------+---------+------------------
+*  sd0  | SoC           | 12500   | 600000 |  625000    | 1400000 | 1.125V (pkg1.1)
+*  sd1  | SDRAM         | 12500   | 600000 | 1125000    | 1125000 | 1.1V   (pkg1.1)
+*  sd2  | ldo{0-1, 7-8} | 12500   | 600000 | 1325000    | 1350000 | 1.325V (pcv)
+*  sd3  | 1.8V general  | 12500   | 600000 | 1800000    | 1800000 |
+*  ldo0 | Display Panel | 25000   | 800000 | 1200000    | 1200000 | 1.2V   (pkg1.1)
+*  ldo1 | XUSB, PCIE    | 25000   | 800000 | 1050000    | 1050000 | 1.05V  (pcv)
+*  ldo2 | SDMMC1        | 50000   | 800000 | 1800000    | 3300000 |
+*  ldo3 | GC ASIC       | 50000   | 800000 | 3100000    | 3100000 | 3.1V   (pcv)
+*  ldo4 | RTC           | 12500   | 800000 |  850000    |  850000 | 0.85V  (AO, pcv)
+*  ldo5 | GC Card       | 50000   | 800000 | 1800000    | 1800000 | 1.8V   (pcv)
+*  ldo6 | Touch, ALS    | 50000   | 800000 | 2900000    | 2900000 | 2.9V   (pcv)
+*  ldo7 | XUSB          | 50000   | 800000 | 1050000    | 1050000 | 1.05V  (pcv)
+*  ldo8 | XUSB, DP, MCU | 50000   | 800000 | 1050000    | 2800000 | 1.05V/2.8V (pcv)
+*/
+
+
+// GPIOs T210: 3: 3.3V, 5: CPU PMIC, 6: GPU PMIC, 7: DSI/VI 1.2V powered by ldo0.
+
+/*
+ * OTP:  T210 - T210B01:
+ * SD0:  1.0V   1.05V - SoC. EN Based on FPSSRC.
+ * SD1:  1.15V  1.1V  - DRAM for T210. EN Based on FPSSRC.
+ * SD2:  1.35V  1.35V
+ * SD3:  1.8V   1.8V
+ * All powered off?
+ * LDO0:   --   --    - Display
+ * LDO1: 1.05V  1.05V
+ * LDO2:   --   --    - SD
+ * LDO3: 3.1V   3.1V  - GC ASIC
+ * LDO4: 1.0V   0.8V  - Needed for RTC domain on T210.
+ * LDO5: 3.1V   3.1V
+ * LDO6: 2.8V   2.9V  - Touch.
+ * LDO7: 1.05V  1.0V
+ * LDO8: 1.05V  1.0V
+ */
+
+/*
+* MAX77620_AME_GPIO: control GPIO modes (bits 0 - 7 correspond to GPIO0 - GPIO7); 0 -> GPIO, 1 -> alt-mode
+* MAX77620_REG_GPIOx: 0x9 sets output and enable
+*/
+
+typedef enum {
+    PcvPowerDomain_Max77620_Sd0  = 0,
+    PcvPowerDomain_Max77620_Sd1  = 1,
+    PcvPowerDomain_Max77620_Sd2  = 2,
+    PcvPowerDomain_Max77620_Sd3  = 3,
+    PcvPowerDomain_Max77620_Ldo0 = 4,
+    PcvPowerDomain_Max77620_Ldo1 = 5,
+    PcvPowerDomain_Max77620_Ldo2 = 6,
+    PcvPowerDomain_Max77620_Ldo3 = 7,
+    PcvPowerDomain_Max77620_Ldo4 = 8,
+    PcvPowerDomain_Max77620_Ldo5 = 9,
+    PcvPowerDomain_Max77620_Ldo6 = 10,
+    PcvPowerDomain_Max77620_Ldo7 = 11,
+    PcvPowerDomain_Max77620_Ldo8 = 12,
+    PcvPowerDomain_Max77621_Cpu  = 13,
+    PcvPowerDomain_Max77621_Gpu  = 14,
+    PcvPowerDomain_Max77812_Cpu  = 15,
+    PcvPowerDomain_Max77812_Gpu  = 16,
+    PcvPowerDomain_Max77812_Dram = 17,
+} PowerDomain;
+
+typedef enum {
+    PcvPowerDomainId_Max77620_Sd0  = 0x3A000080,
+    PcvPowerDomainId_Max77620_Sd1  = 0x3A000081, // vdd2
+    PcvPowerDomainId_Max77620_Sd2  = 0x3A000082,
+    PcvPowerDomainId_Max77620_Sd3  = 0x3A000083,
+    PcvPowerDomainId_Max77620_Ldo0 = 0x3A0000A0,
+    PcvPowerDomainId_Max77620_Ldo1 = 0x3A0000A1,
+    PcvPowerDomainId_Max77620_Ldo2 = 0x3A0000A2,
+    PcvPowerDomainId_Max77620_Ldo3 = 0x3A0000A3,
+    PcvPowerDomainId_Max77620_Ldo4 = 0x3A0000A4,
+    PcvPowerDomainId_Max77620_Ldo5 = 0x3A0000A5,
+    PcvPowerDomainId_Max77620_Ldo6 = 0x3A0000A6,
+    PcvPowerDomainId_Max77620_Ldo7 = 0x3A0000A7,
+    PcvPowerDomainId_Max77620_Ldo8 = 0x3A0000A8,
+    PcvPowerDomainId_Max77621_Cpu  = 0x3A000003,
+    PcvPowerDomainId_Max77621_Gpu  = 0x3A000004,
+    PcvPowerDomainId_Max77812_Cpu  = 0x3A000003,
+    PcvPowerDomainId_Max77812_Gpu  = 0x3A000004,
+    PcvPowerDomainId_Max77812_Dram = 0x3A000005, // vddq
+} PowerDomainId;

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

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <switch.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+    Service s;
+} PwmChannelSession;
+
+Result pwmInitialize(void);
+void pwmExit(void);
+Service* pwmGetServiceSession(void);
+Result pwmOpenSession2(PwmChannelSession *out, u32 device_code);
+Result pwmChannelSessionGetDutyCycle(PwmChannelSession *c, double* out);
+void pwmChannelSessionClose(PwmChannelSession *c);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif

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

@@ -0,0 +1,19 @@
+#pragma once
+#include <switch.h>
+#include "pcv_types.h"
+
+typedef struct {
+    Service s;
+} RgltrSession;
+
+Result rgltrInitialize(void);
+
+void rgltrExit(void);
+
+Service* rgltrGetServiceSession(void);
+
+Result rgltrOpenSession(RgltrSession* session_out, PowerDomainId module_id);
+void rgltrCloseSession(RgltrSession* session);
+Result rgltrGetVoltage(RgltrSession* session, u32 *out_volt);
+Result rgltrGetPowerModuleNumLimit(u32 *out);
+Result rgltrGetVoltageEnabled(RgltrSession* session, u32 *out);

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

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <switch.h>  // for Service, Result, hosversionBefore(), smGetService(), serviceClose(), etc.
+#include "rgltr.h"   // for RgltrSession, PowerDomainId, etc.
+
+extern Service g_rgltrSrv;
+
+Result rgltrInitialize(void);
+void   rgltrExit(void);
+
+Result rgltrOpenSession(RgltrSession* session_out, PowerDomainId module_id);
+
+Result rgltrGetVoltage(RgltrSession* session, u32* out_volt);
+
+void   rgltrCloseSession(RgltrSession* session);

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

@@ -0,0 +1,65 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <switch/types.h>
+#include <switch/result.h>
+#include <switch/kernel/mutex.h>
+#include <switch/sf/service.h>
+#include <switch/services/sm.h>
+
+typedef struct ServiceGuard {
+    Mutex mutex;
+    u32 refCount;
+} ServiceGuard;
+
+NX_INLINE bool serviceGuardBeginInit(ServiceGuard* g)
+{
+    mutexLock(&g->mutex);
+    return (g->refCount++) == 0;
+}
+
+NX_INLINE Result serviceGuardEndInit(ServiceGuard* g, Result rc, void (*cleanupFunc)(void))
+{
+    if (R_FAILED(rc)) {
+        cleanupFunc();
+        --g->refCount;
+    }
+    mutexUnlock(&g->mutex);
+    return rc;
+}
+
+NX_INLINE void serviceGuardExit(ServiceGuard* g, void (*cleanupFunc)(void))
+{
+    mutexLock(&g->mutex);
+    if (g->refCount && (--g->refCount) == 0)
+        cleanupFunc();
+    mutexUnlock(&g->mutex);
+}
+
+#define NX_GENERATE_SERVICE_GUARD_PARAMS(name, _paramdecl, _parampass) \
+\
+static ServiceGuard g_##name##Guard; \
+NX_INLINE Result _##name##Initialize _paramdecl; \
+static void _##name##Cleanup(void); \
+\
+Result name##Initialize _paramdecl \
+{ \
+    Result rc = 0; \
+    if (serviceGuardBeginInit(&g_##name##Guard)) \
+        rc = _##name##Initialize _parampass; \
+    return serviceGuardEndInit(&g_##name##Guard, rc, _##name##Cleanup); \
+} \
+\
+void name##Exit(void) \
+{ \
+    serviceGuardExit(&g_##name##Guard, _##name##Cleanup); \
+}
+
+#define NX_GENERATE_SERVICE_GUARD(name) NX_GENERATE_SERVICE_GUARD_PARAMS(name, (void), ())
+
+#ifdef __cplusplus
+}
+#endif

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

@@ -103,6 +103,7 @@ typedef enum
     HocClkPartLoad_GPU,
     HocClkPartLoad_CPUAvg,
     HocClkPartLoad_BAT,
+    HocClkPartLoad_FAN,
     SysClkPartLoad_EnumMax
 } SysClkPartLoad;
 

Source/sys-clk/common/src/i2c.cpp

@@ -0,0 +1,186 @@
+#include "i2c.h"
+
+Result I2cSet_U8(I2cDevice dev, u8 reg, u8 val) {
+    // ams::fatal::srv::StopSoundTask::StopSound()
+    // I2C Bus Communication Reference: https://www.ti.com/lit/an/slva704/slva704.pdf
+    struct {
+        u8 reg;
+        u8 val;
+    } __attribute__((packed)) cmd;
+
+    I2cSession _session;
+    Result res = i2cOpenSession(&_session, dev);
+    if (res)
+        return res;
+
+    cmd.reg = reg;
+    cmd.val = val;
+    res = i2csessionSendAuto(&_session, &cmd, sizeof(cmd), I2cTransactionOption_All);
+    i2csessionClose(&_session);
+    return res;
+}
+
+Result I2cRead_OutU8(I2cDevice dev, u8 reg, u8 *out) {
+    struct { u8 reg; } __attribute__((packed)) cmd;
+    struct { u8 val; } __attribute__((packed)) rec;
+
+    I2cSession _session;
+    Result res = i2cOpenSession(&_session, dev);
+    if (res)
+        return res;
+
+    cmd.reg = reg;
+    res = i2csessionSendAuto(&_session, &cmd, sizeof(cmd), I2cTransactionOption_All);
+    if (res) {
+        i2csessionClose(&_session);
+        return res;
+    }
+
+    res = i2csessionReceiveAuto(&_session, &rec, sizeof(rec), I2cTransactionOption_All);
+    i2csessionClose(&_session);
+    if (res) {
+        return res;
+    }
+
+    *out = rec.val;
+    return 0;
+}
+
+Result I2cRead_OutU16(I2cDevice dev, u8 reg, u16 *out) {
+    struct { u8 reg;  } __attribute__((packed)) cmd;
+    struct { u16 val; } __attribute__((packed)) rec;
+
+    I2cSession _session;
+    Result res = i2cOpenSession(&_session, dev);
+    if (res)
+        return res;
+
+    cmd.reg = reg;
+    res = i2csessionSendAuto(&_session, &cmd, sizeof(cmd), I2cTransactionOption_All);
+    if (res) {
+        i2csessionClose(&_session);
+        return res;
+    }
+
+    res = i2csessionReceiveAuto(&_session, &rec, sizeof(rec), I2cTransactionOption_All);
+    i2csessionClose(&_session);
+    if (res) {
+        return res;
+    }
+
+    *out = rec.val;
+    return 0;
+}
+
+float I2c_Max17050_GetBatteryCurrent() {
+    u16 val;
+    Result res = I2cRead_OutU16(I2cDevice_Max17050, MAX17050_CURRENT_REG, &val);
+    if (res)
+        return 0.f;
+
+    const float SenseResistor   = 5.; // in uOhm
+    const float CGain           = 1.99993;
+    return (s16)val * (1.5625 / (SenseResistor * CGain));
+}
+
+u32 I2c_BuckConverter_MultiplierToMvOut(const I2c_BuckConverter_Domain* domain, u8 multiplier) {
+    return (domain->uv_min + domain->uv_step * multiplier) / 1000;
+}
+
+u8 I2c_BuckConverter_MvOutToMultiplier(const I2c_BuckConverter_Domain* domain, u32 mvolt) {
+    u32 uvolt = mvolt * 1000;
+    if (uvolt < domain->uv_min)
+        uvolt = domain->uv_min;
+    if (uvolt > domain->uv_max)
+        uvolt = domain->uv_max;
+
+    return (uvolt - domain->uv_min) / domain->uv_step;
+}
+
+u32 I2c_BuckConverter_GetMvOut(const I2c_BuckConverter_Domain* domain) {
+    u8 val;
+    // Retry 5 times if received POR value
+    for (int i = 0; i < 5; i++) {
+        if (R_FAILED(I2cRead_OutU8(domain->device, domain->reg, &val)))
+            return 0u;
+
+        // Wait 1us
+        svcSleepThread(1E3);
+
+        if (!domain->por_val || val != domain->por_val)
+            break;
+    }
+    return I2c_BuckConverter_MultiplierToMvOut(domain, val & domain->volt_mask);
+}
+
+Result I2c_BuckConverter_SetMvOut(const I2c_BuckConverter_Domain* domain, u32 mvolt) {
+    u8 val;
+    Result res = I2cRead_OutU8(domain->device, domain->reg, &val);
+    if (R_FAILED(res))
+        return res;
+
+    u8 multiplier = I2c_BuckConverter_MvOutToMultiplier(domain, mvolt);
+    val &= ~domain->volt_mask;
+    val |= multiplier & domain->volt_mask;
+
+    res = I2cSet_U8(domain->device, domain->reg, val);
+    if (R_FAILED(res))
+        return res;
+
+    // 5ms Ramp delay
+    svcSleepThread(5E6);
+    u8 new_val;
+    res = I2cRead_OutU8(domain->device, domain->reg, &new_val);
+    if (R_FAILED(res))
+        return res;
+    if (new_val != val)
+        return -1;
+
+    return 0;
+}
+
+u8 I2c_Bq24193_Convert_mA_Raw(u32 ma) {
+    // Adjustment is required
+    u8 raw = 0;
+
+    if (ma > MA_RANGE_MAX) // capping
+        ma = MA_RANGE_MAX;
+
+    bool pct20 = ma <= (MA_RANGE_MIN - 64);
+    if (pct20) {
+        ma = ma * 5;
+        raw |= 0x1;
+    }
+
+    ma -= ma % 100; // round to 100
+    ma -= (MA_RANGE_MIN - 64); // ceiling
+    raw |= (ma >> 6) << 2;
+
+    return raw;
+};
+
+u32 I2c_Bq24193_Convert_Raw_mA(u8 raw) {
+    // No adjustment is allowed
+    u32 ma = (((raw >> 2)) << 6) + MA_RANGE_MIN;
+
+    bool pct20 = raw & 1;
+    if (pct20)
+        ma = ma * 20 / 100;
+
+    return ma;
+};
+
+Result I2c_Bq24193_GetFastChargeCurrentLimit(u32 *ma) {
+    u8 raw;
+    Result res = I2cRead_OutU8(I2cDevice_Bq24193, BQ24193_CHARGE_CURRENT_CONTROL_REG, &raw);
+    if (res)
+        return res;
+
+    *ma = I2c_Bq24193_Convert_Raw_mA(raw);
+    return 0;
+}
+
+Result I2c_Bq24193_SetFastChargeCurrentLimit(u32 ma) {
+    u8 raw = I2c_Bq24193_Convert_mA_Raw(ma);
+    return I2cSet_U8(I2cDevice_Bq24193, BQ24193_CHARGE_CURRENT_CONTROL_REG, raw);
+}

Source/sys-clk/common/src/pwm.c

@@ -0,0 +1,35 @@
+#define NX_SERVICE_ASSUME_NON_DOMAIN
+#include <switch.h>
+#include "service_guard.h"
+#include "pwm.h"
+
+static Service g_pwmSrv;
+
+NX_GENERATE_SERVICE_GUARD(pwm);
+
+Result _pwmInitialize(void) {
+    return smGetService(&g_pwmSrv, "pwm");
+}
+
+void _pwmCleanup(void) {
+    serviceClose(&g_pwmSrv);
+}
+
+Service* pwmGetServiceSession(void) {
+    return &g_pwmSrv;
+}
+
+Result pwmOpenSession2(PwmChannelSession *out, u32 device_code) {
+    return serviceDispatchIn(&g_pwmSrv, 2, device_code,
+        .out_num_objects = 1,
+        .out_objects = &out->s,
+    );
+}
+
+Result pwmChannelSessionGetDutyCycle(PwmChannelSession *c, double* out) {
+    return serviceDispatchOut(&c->s, 7, *out);
+}
+
+void pwmChannelSessionClose(PwmChannelSession *controller) {
+    serviceClose(&controller->s);
+}

Source/sys-clk/common/src/rgltr_services.cpp

@@ -0,0 +1,41 @@
+#include <switch.h>
+#include "rgltr.h"
+#include "rgltr_services.h"  // for extern Service g_rgltrSrv, etc.
+
+// Global service handle
+Service g_rgltrSrv;
+
+Result rgltrInitialize(void) {
+    if (hosversionBefore(8, 0, 0)) {
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+    }
+    return smGetService(&g_rgltrSrv, "rgltr");
+}
+
+void rgltrExit(void) {
+    serviceClose(&g_rgltrSrv);
+}
+
+Result rgltrOpenSession(RgltrSession* session_out, PowerDomainId module_id) {
+    const u32 in = (u32)module_id;
+    return serviceDispatchIn(
+        &g_rgltrSrv,
+        0,
+        in,
+        .out_num_objects = 1,
+        .out_objects     = &session_out->s
+    );
+}
+
+Result rgltrGetVoltage(RgltrSession* session, u32* out_volt) {
+    u32 temp = 0;
+    Result rc = serviceDispatchOut(&session->s, 4, temp);
+    if (R_SUCCEEDED(rc)) {
+        *out_volt = temp;
+    }
+    return rc;
+}
+
+void rgltrCloseSession(RgltrSession* session) {
+    serviceClose(&session->s);
+}