beep and commands

kaleid/extras/argv.c

@@ -25,6 +25,8 @@
 #include <ex/argv.h>
 #include <ex/malloc.h>
 
+#include <kernel.h>
+
 //
 // Computes argument count, the least N such
 // that argv[N] == NULL
@@ -75,7 +77,7 @@ error_t KalCmdLineToArgVecEx(const char  *cmdLine,
                              char       **argv,
                              bool         doEscaping)
 {
-    int argc;
+    int argc = 0;
     char quotes = 0;
     bool started = false;
     bool escaping = false;
@@ -92,7 +94,7 @@ error_t KalCmdLineToArgVecEx(const char  *cmdLine,
     // Macro'd to avoid copypasting code
 #define NULLTERM_AND_SAVE               \
         *buffer = 0;                    \
-        argv[++argc] = buffer++ + 1;    \
+        argv[++argc] = ++buffer;        \
         written += sizeof(char *) + 1;  \
 
     // Is character a blank character?
@@ -106,7 +108,7 @@ error_t KalCmdLineToArgVecEx(const char  *cmdLine,
 
 
     // Go through the command line
-    for (argc = 0; *cmdLine; cmdLine++) {
+    for (; *cmdLine; cmdLine++) {
 
         // Make sure we don't go beyond ARG_MAX bytes
         if (written >= ARG_MAX - (1 + sizeof(char *))) {

kaleid/kernel/io/spkr.c

@@ -27,13 +27,13 @@
 
 void IoStartSpeaker(int freq)
 {
-    char temp;
+    uchar temp;
-    int pitf = 1193180 / freq;
+    uint pitf = 1193180 / freq;
     
     ulong flags = KePauseIRQs();
     IoWriteByteOnPort(0x43, 0xB6);
-    IoWriteByteOnPort(0x42, (char)pitf);
+    IoWriteByteOnPort(0x42, (uchar)pitf);
-    IoWriteByteOnPort(0x42, (char)(pitf >> 8));
+    IoWriteByteOnPort(0x42, (uchar)(pitf >> 8));
     
     temp = IoReadByteFromPort(0x61);
     if (temp != (temp | 3)) {
@@ -44,14 +44,9 @@ void IoStartSpeaker(int freq)
 
 void IoQuietSpeaker(void)
 {
+    ulong flags = KePauseIRQs();
     IoWriteByteOnPort(0x61, IoReadByteFromPort(0x61) & 0xFC);
-}
+    KeRestoreIRQs(flags);
-
-void IoDoBeep(void)
-{
-    IoStartSpeaker(1000);
-    KeDelayExecution(100);
-    IoQuietSpeaker();
 }
 
 void IoDoTone(uint tone, uint time)
@@ -61,14 +56,21 @@ void IoDoTone(uint tone, uint time)
     IoQuietSpeaker();
 }
 
+void IoDoBeep(void)
+{
+    IoDoTone(1000, 100);
+}
+
 void IoDoStarWars(void)
 {
+    size_t i;
+
     struct Note {
         uint tone;
         uint time;
     };
 
-    struct Note Score[40] = { {440, 200}, {110, 200}, {440, 200}, {110, 200},
+    struct Note score[] = { {440, 200}, {110, 200}, {440, 200}, {110, 200},
                             {440, 200}, {110, 200}, {349, 140}, {87, 100},
                             {523, 60},  {87, 100},  {440, 200}, {110, 200},
                             {349, 140}, {87, 100},  {523, 60},  {87, 100},
@@ -81,8 +83,7 @@ void IoDoStarWars(void)
                             {440, 200}, {110, 200}, {110, 200}, {110, 200}
                           };
 
-    for (int i=0; i<40 ; i++) {
+    for (i = 0; i < sizeof(score)/sizeof(struct Note); i++) {
-        IoDoTone(Score[i].tone, Score[i].time);
+        IoDoTone(score[i].tone, score[i].time);
-        KePauseCPU();
     }
 }

kaleid/kernel/sh/shcmds.c

@@ -26,12 +26,7 @@
 
 error_t CmdBeep(int argc, char **argv, char *cmdline)
 {
-    if (rand() % 64 == 0 || (argc > 1 && !strcmp(argv[1], "starwars"))) {
+    IoDoBeep();
-        IoDoStarWars();
-    }
-
-    else IoDoBeep();
-    
     return EOK;
 }
 
@@ -240,6 +235,19 @@ error_t CmdPF(int argc, char **argv, char *cmdline)
     return EOK;
 }
 
+error_t CmdArgs(int argc, char **argv, char *cmdline)
+{
+    int i;
+
+    KernLog("cmdline: '%s'\nargc: %d\n", cmdline, argc);
+
+    for (i = 0; i < argc; i++) {
+        KernLog("argv[%d]: '%s'\n", i, argv[i]);
+    }
+    
+    return EOK;
+}
+
 void MmInitPaging(void);
 
 error_t CmdReloadPage(int argc, char **argv, char *cmdline)
@@ -249,6 +257,13 @@ error_t CmdReloadPage(int argc, char **argv, char *cmdline)
 }
 
 extern void KeStartShell(void);
+
+error_t CmdShell(int argc, char **argv, char *cmdline)
+{
+    KeStartShell();
+    return EOK;
+}
+
 error_t CmdStackOverflow(int argc, char **argv, char *cmdline)
 {    
     CmdStackOverflow(0, 0, 0);
@@ -259,6 +274,7 @@ error_t CmdStackOverflow(int argc, char **argv, char *cmdline)
 
 Command_t cmdtable[] =
 {
+    { "args",       CmdArgs,            "Print command line" },
     { "beep",       CmdBeep,            "Make a beep" },
     { "cls",        CmdClear,           "Clears standard output" },
     { "date",       CmdDate,            "Print date" },
@@ -272,7 +288,8 @@ Command_t cmdtable[] =
     { "pfault",     CmdPF,              "Provoke a PF. Usage : pfault <address>" },
     { "pstest",     CmdPsTest,          "Scheduler test routine" },
     { "quit",       CmdQuit,            "Alias for 'exit'" },
-    { "so",         CmdStackOverflow,   "Provoke a stack overflow" },
+    { "shell",      CmdShell,           "Start a new shell (nested)", },
+    { "stkov",      CmdStackOverflow,   "Provoke a stack overflow" },
     { "time",       CmdTime,            "Print time" },
     { NULL, NULL, NULL }
 };

kaleid/kernel/sh/shell.c

@@ -96,7 +96,7 @@ void KeStartShell(void)
             break;
 
         case KEY_BEL:
-            if (rand() % 64 == 0) {
+            if (rand() % 16 == 0) {
                 IoDoStarWars();
             }
             else IoDoBeep();