New rewritten serial driver + dev interface

kernel/dev/dev.c

@@ -6,6 +6,7 @@
 #include "hal/hal.h"
 #include "termdev.h"
 #include "ps2kbdev.h"
+#include "serialdev.h"
 
 DevTable DEVTABLE;
 
@@ -15,4 +16,5 @@ void dev_init(void) {
 
   termdev_init();
   ps2kbdev_init();
+  serialdev_init();
 }

kernel/dev/dev.h

@@ -12,6 +12,7 @@ typedef struct {
   int _hshtbstate;
   char ident[0x100];
   DevFn fns[DEV_FNS_MAX];
+  SpinLock spinlock;
 } Dev;
 
 

kernel/dev/ps2kbdev.c

@@ -33,5 +33,6 @@ void ps2kbdev_init(void) {
 
   Dev *ps2kbdev;
   HSHTB_ALLOC(DEVTABLE.devs, ident, "ps2kbdev", ps2kbdev);
+  spinlock_init(&ps2kbdev->spinlock);
   ps2kbdev->fns[0] = &ps2kbdev_readch;
 }

kernel/dev/serialdev.c

@@ -0,0 +1,42 @@
+#include <stdint.h>
+#include <stddef.h>
+#include "dev.h"
+#include "serialdev.h"
+#include "errors.h"
+#include "util/util.h"
+#include "hshtb.h"
+#include "sysdefs/devctl.h"
+#include "drivers/serial/serial.h"
+#include "kprintf.h"
+
+int32_t serialdev_sendb(uint8_t *buffer, size_t len, void *extra) {
+  (void)len; (void)extra;
+  serial_sendb(buffer[0]);
+  return E_OK;
+}
+
+int32_t serialdev_sendready(uint8_t *buffer, size_t len, void *extra) {
+  (void)buffer; (void)len; (void) extra;
+  return serial_sendready();
+}
+
+int32_t serialdev_recvb(uint8_t *buffer, size_t len, void *extra) {
+  (void)buffer; (void)len; (void)extra;
+  return serial_recvb();
+}
+
+int32_t serialdev_recvready(uint8_t *buffer, size_t len, void *extra) {
+  (void)buffer; (void)len; (void)extra;
+  return serial_recvready();
+}
+
+void serialdev_init(void) {
+  Dev *serialdev = NULL;
+  HSHTB_ALLOC(DEVTABLE.devs, ident, "serialdev", serialdev);
+  serialdev->fns[DEV_SERIALDEV_SENDB] = &serialdev_sendb;
+  serialdev->fns[DEV_SERIALDEV_SENDREADY] = &serialdev_sendready;
+  serialdev->fns[DEV_SERIALDEV_RECVB] = &serialdev_recvb;
+  serialdev->fns[DEV_SERIALDEV_RECVREADY] = &serialdev_recvready;
+  spinlock_init(&serialdev->spinlock);
+  serial_init();
+}

kernel/dev/serialdev.h

@@ -0,0 +1,10 @@
+#ifndef DEV_SERIALDEV_H_
+#define DEV_SERIALDEV_H_
+
+int32_t serialdev_sendb(uint8_t *buffer, size_t len, void *extra);
+int32_t serialdev_sendready(uint8_t *buffer, size_t len, void *extra);
+int32_t serialdev_recvb(uint8_t *buffer, size_t len, void *extra);
+int32_t serialdev_recvready(uint8_t *buffer, size_t len, void *extra);
+void serialdev_init(void);
+
+#endif // DEV_SERIALDEV_H_

kernel/dev/termdev.c

@@ -17,4 +17,5 @@ void termdev_init(void) {
   Dev *termdev = NULL;
   HSHTB_ALLOC(DEVTABLE.devs, ident, "termdev", termdev);
   termdev->fns[0] = &termdev_putch;
+  spinlock_init(&termdev->spinlock);
 }