Add psp2kern/{lowio/pervasive.h, power.h, syscon.h, uart.h}, minor nits (#255)

* Add psp2kern/{lowio/pervasive.h, power.h, syscon.h, uart.h}, minor nits

* Fix psp2kern/power.h kernelgroup

* Remove stray kscePervasiveUartSetBaudrate from psp2kern/uart.h

* Add missing docs

* Documentation improvements

3 files changed, 50 insertions, 6 deletions

diff --git a/include/kernel/lowio/gpio.h b/include/kernel/lowio/gpio.h
index 944acbd..49322d4 100644
--- a/include/kernel/lowio/gpio.h
+++ b/include/kernel/lowio/gpio.h
@@ -1,5 +1,5 @@
-#ifndef _PSP2_LOWIO_GPIO_H_
-#define _PSP2_LOWIO_GPIO_H_
+#ifndef _PSP2_KERN_LOWIO_GPIO_H_
+#define _PSP2_KERN_LOWIO_GPIO_H_
 
 #include <psp2kern/types.h>
 
@@ -38,5 +38,5 @@ int sceGpioQueryIntr(int bus, int port);
 }
 #endif
 
-#endif /* _PSP2_LOWIO_GPIO_H_ */
+#endif /* _PSP2_KERN_LOWIO_GPIO_H_ */
 
diff --git a/include/kernel/lowio/i2c.h b/include/kernel/lowio/i2c.h
index 5a49f77..961f1df 100644
--- a/include/kernel/lowio/i2c.h
+++ b/include/kernel/lowio/i2c.h
@@ -1,5 +1,5 @@
-#ifndef _PSP2_LOWIO_I2C_H_
-#define _PSP2_LOWIO_I2C_H_
+#ifndef _PSP2_KERN_LOWIO_I2C_H_
+#define _PSP2_KERN_LOWIO_I2C_H_
 
 #include <psp2kern/types.h>
 
@@ -38,5 +38,5 @@ int sceI2cSetDebugHandlers(int bus, SceI2cDebugHandlers *debug_handlers);
 }
 #endif
 
-#endif /* _PSP2_LOWIO_I2C_H_ */
+#endif /* _PSP2_KERN_LOWIO_I2C_H_ */
 
diff --git a/include/kernel/lowio/pervasive.h b/include/kernel/lowio/pervasive.h
new file mode 100644
index 0000000..24a4ac4
--- /dev/null
+++ b/include/kernel/lowio/pervasive.h
@@ -0,0 +1,44 @@
+#ifndef _PSP2_KERN_LOWIO_PERVASIVE_H_
+#define _PSP2_KERN_LOWIO_PERVASIVE_H_
+
+#include <psp2kern/types.h>
+
+#ifdef __cplusplus
+"C" {
+#endif
+
+int scePervasiveUartClockDisable(int port);
+int scePervasiveUartResetEnable(int port);
+int scePervasiveUartResetDisable(int port);
+int scePervasiveUartClockEnable(int port);
+int scePervasiveUartSetBaudrate(int port, unsigned int baudrate);
+
+int scePervasiveGpioResetEnable(void);
+int scePervasiveGpioResetDisable(void);
+int scePervasiveGpioClockEnable(void);
+int scePervasiveGpioClockDisable(void);
+
+int scePervasiveSpiResetEnable(int port);
+int scePervasiveSpiResetDisable(int port);
+int scePervasiveSpiClockDisable(int port);
+int scePervasiveSpiClockEnable(int port);
+
+int scePervasiveDsiResetEnable(int port, unsigned int mask);
+int scePervasiveDsiResetDisable(int port, unsigned int mask);
+int scePervasiveDsiClockEnable(int port, unsigned int mask);
+int scePervasiveDsiClockDisable(int port, unsigned int mask);
+
+int scePervasiveMsifResetEnable(void);
+int scePervasiveMsifResetDisable(void);
+int scePervasiveMsifClockEnable(void);
+int scePervasiveMsifClockDisable(void);
+int scePervasiveMsifSetClock(unsigned int clock);
+
+int scePervasiveRemovableMemoryGetCardInsertState(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _PSP2_KERN_LOWIO_PERVASIVE_H_ */
+