11 files changed, 94 insertions, 8 deletions

diff --git a/asm/int_syscall_handler.asm b/asm/int_syscall_handler.asm
index 70090f0..619ef84 100644
--- a/asm/int_syscall_handler.asm
+++ b/asm/int_syscall_handler.asm
@@ -18,6 +18,8 @@ global int_syscall_handler
 [extern syscall_stat]
 [extern syscall_lstat]
 [extern syscall_fork]
+[extern syscall_has_data_waiting]
+[extern syscall_tune]
 [extern syscall_unhandled]
 
 [bits 32]
@@ -78,6 +80,11 @@ je call_wait
     cmp eax, 79
     je call_lstat
 
+    cmp eax, 80
+    je call_has_data
+
+    cmp eax, 81
+    je call_tune
 
     push eax
     jmp call_unhandled
@@ -208,6 +215,12 @@ call_sbrk:
     call syscall_sbrk
     jmp done
 
+call_has_data:
+    call syscall_has_data_waiting
+    jmp done
+call_tune:
+    call syscall_tune
+    jmp done
 
 call_unhandled:
     call syscall_unhandled
diff --git a/kernel/kernel.c b/kernel/kernel.c
index 6937031..d54baf6 100644
--- a/kernel/kernel.c
+++ b/kernel/kernel.c
@@ -75,6 +75,7 @@ static void init_stdio()
     input.put_char=stdin_put_char;
 
     tty1=terminal_init(&screen,&input);
+    get_fool()->tty=&tty1;
 
     get_fool()->std_out.data=&tty1;
     get_fool()->std_out.put=terminal_put;
diff --git a/kernel/kernel.h b/kernel/kernel.h
index 2929a28..757c3bf 100644
--- a/kernel/kernel.h
+++ b/kernel/kernel.h
@@ -4,12 +4,14 @@
 #define KERNEL_VERSION "FoolOs 0.2.1"
 
 #include "fifo.h"
+#include "terminal/terminal.h"
 
 typedef struct fool_os_struct
 {
 
     fifo std_in;
     fifo std_out;
+    terminal_tty* tty;
 
 }fool_os;
 
diff --git a/kernel/syscalls.c b/kernel/syscalls.c
index f5169e7..c935ecd 100644
--- a/kernel/syscalls.c
+++ b/kernel/syscalls.c
@@ -87,6 +87,45 @@ int syscall_readdir(const char *name,fs_dirent *dirs,int max)
     return fs_readdir(name,dirs,max);
 }
 
+// for non blocking io?
+int syscall_has_data_waiting(int file)
+{
+
+    #ifdef LOG_SYSCALLS
+    log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"has data waiting?");
+    #endif
+
+    return fifo_has(&get_fool()->std_in);
+}
+
+int syscall_tune(int v1,int v2, int v3)
+{
+
+
+    #ifdef LOG_SYSCALLS
+    log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"tuning request");
+    #endif
+
+
+    if(v1==0) // regular tty mode
+    {
+	get_fool()->tty->set_buff=true;
+	get_fool()->tty->set_echo=true;
+    }
+    if(v1==1) // gaming tty mode
+    {
+	get_fool()->tty->set_buff=false;
+	get_fool()->tty->set_echo=false;
+    }
+
+
+    return 0;
+}
+
+
+
+
+
 int copy_args(char **in, char **out)
 {
     log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"copy_args(0x%08x, 0x%08X)",in,out);
diff --git a/kernel/syscalls.h b/kernel/syscalls.h
index ff7c2e5..5c7a772 100644
--- a/kernel/syscalls.h
+++ b/kernel/syscalls.h
@@ -6,6 +6,8 @@
 
 //fool-os syscalls
 #define SYSCALL_READDIR 63
+#define SYSCALL_HAS_DATA 80
+#define SYSCALL_TUNE 81
 
 //syscalls required by newlib
 #define SYSCALL_EXIT 60
diff --git a/terminal/terminal.c b/terminal/terminal.c
index 7fc6f93..ccea64e 100644
--- a/terminal/terminal.c
+++ b/terminal/terminal.c
@@ -8,9 +8,6 @@
 #include "kernel/kmalloc.h"
 #include "driver/screen.h"
 
-#define SET_LFNL true
-#define SET_BUFF false
-#define SET_ECHO true
 
 
 typedef enum {
@@ -238,6 +235,10 @@ terminal_tty terminal_init(term_out *screen,term_in *input)
 
     tty.data=kballoc(2);
 
+    tty.set_buff=true;
+    tty.set_lfnl=true;
+    tty.set_echo=true;
+
     tty.command=kballoc(1);
     tty.command_l=0;
 
@@ -262,9 +263,9 @@ terminal_tty terminal_init(term_out *screen,term_in *input)
 void terminal_kb(terminal_tty *tty, uint8_t c)
 {
 
-    if(SET_ECHO)terminal_put(tty,c);
+    if(tty->set_echo)terminal_put(tty,c);
 
-    if(SET_BUFF)
+    if(tty->set_buff)
     {
 	tty->command[tty->command_l]=c;
 	(tty->command_l)++;
@@ -328,7 +329,7 @@ bool terminal_put(terminal_tty *tty, uint8_t c)
 	    set_char(tty,x,tty->y,' ',tty->fg,tty->bg);
 	}
 	tty->y++;
-	if(SET_LFNL)tty->x=0;	
+	if(tty->set_lfnl)tty->x=0;	
     }
     else //
     { 
diff --git a/terminal/terminal.h b/terminal/terminal.h
index e97a413..5e97cc1 100644
--- a/terminal/terminal.h
+++ b/terminal/terminal.h
@@ -48,6 +48,10 @@ typedef struct terminal_tty_struct
     uint8_t fg;
     uint8_t bg;
 
+    bool set_buff;
+    bool set_lfnl;
+    bool set_echo;
+
     uint32_t width;
     uint32_t height;
     uint32_t x;
diff --git a/userspace/snake.c b/userspace/snake.c
index aedf191..8352d1b 100644
--- a/userspace/snake.c
+++ b/userspace/snake.c
@@ -3,11 +3,23 @@
 int main()
 {
     printf("Hello I am FoolSnake 0.1\n");
-    printf("setvbuf returned %i",setvbuf(stdin,NULL,_IONBF,0));
+    printf("setvbuf returned %i\n",setvbuf(stdin,NULL,_IONBF,0));
+
+    fool_tune(1,0,0); // activate gaming mode
 
     while(1)
     {
-	printf("%c",fgetc(stdin));
 
+	while(!has_data_waiting())
+	{
+
+	}
+
+	char c=fgetc(stdin);
+	printf("[%c]\n",c);
+	if(c=='q')break;
+	
     }
+
+    fool_tune(0,0,0); // de-activate gaming mode
 }
diff --git a/userspace/sys/libfool.a b/userspace/sys/libfool.a
index 7c47ee4..81a4f16 100644
--- a/userspace/sys/libfool.a
+++ b/userspace/sys/libfool.a
diff --git a/userspace/sys/syscalls.c b/userspace/sys/syscalls.c
index 9dfd313..4b29451 100644
--- a/userspace/sys/syscalls.c
+++ b/userspace/sys/syscalls.c
@@ -35,6 +35,18 @@ int readdir(const char *name,fs_dirent  *dirs,int max)
     return syscall(SYSCALL_READDIR,name,dirs,max);
 }
 
+int has_data_waiting()
+{
+
+    return syscall(SYSCALL_HAS_DATA,0,0,0);
+}
+
+int fool_tune(int v1, int v2, int v3)
+{
+
+    return syscall(SYSCALL_TUNE,v1,v2,v3);
+}
+
 void _exit(int ret)
 {
     _exit2(ret,environ);
diff --git a/userspace/sys/syscalls.o b/userspace/sys/syscalls.o
index 2176036..f8fd94b 100644
--- a/userspace/sys/syscalls.o
+++ b/userspace/sys/syscalls.o