refactor: separate syscall interfaces from kernel space, into posix compliant structure.
[lunaix-os.git] / lunaix-os / kernel / proc0.c
index f2a845840f2a7656cc556ea16152affd3bcb9347..259c8bbaef8fea02454780edec13cf0a2b6e4783 100644 (file)
@@ -1,28 +1,39 @@
-#include <arch/x86/boot/multiboot.h>
+#include <lunaix/block.h>
 #include <lunaix/common.h>
+#include <lunaix/foptions.h>
 #include <lunaix/fs.h>
 #include <lunaix/fs/twifs.h>
-#include <lunaix/lunistd.h>
 #include <lunaix/lxconsole.h>
 #include <lunaix/mm/cake.h>
 #include <lunaix/mm/pmm.h>
 #include <lunaix/mm/valloc.h>
 #include <lunaix/mm/vmm.h>
 #include <lunaix/peripheral/ps2kbd.h>
-#include <lunaix/proc.h>
+#include <lunaix/peripheral/serial.h>
 #include <lunaix/spike.h>
 #include <lunaix/syscall.h>
 #include <lunaix/syslog.h>
-#include <stddef.h>
+#include <lunaix/types.h>
+
+#include <usr/fcntl.h>
+#include <usr/sys/lunaix.h>
+#include <usr/unistd.h>
+
+#include <sdbg/protocol.h>
 
 #include <hal/acpi/acpi.h>
 #include <hal/ahci/ahci.h>
 #include <hal/apic.h>
 #include <hal/ioapic.h>
 #include <hal/pci.h>
+#include <hal/rtc.h>
+
+#include <arch/x86/boot/multiboot.h>
 
 #include <klibc/string.h>
 
+#include <ulibc/stdio.h>
+
 LOG_MODULE("PROC0")
 
 extern void
@@ -40,8 +51,12 @@ unlock_reserved_memory();
 void
 __do_reserved_memory(int unlock);
 
-//#define USE_DEMO
-#define DEMO_SIGNAL
+#define USE_DEMO
+// #define DEMO_SIGNAL
+// #define DEMO_READDIR
+// #define DEMO_IOTEST
+// #define DEMO_INPUT_TEST
+#define DEMO_SIMPLE_SH
 
 extern void
 _pconsole_main();
@@ -52,22 +67,61 @@ _signal_demo_main();
 extern void
 _lxinit_main();
 
+extern void
+_readdir_main();
+
+extern void
+_iotest_main();
+
+extern void
+input_test();
+
+extern void
+sh_main();
+
+void __USER__
+__setup_dir()
+{
+    int errno;
+    mkdir("/mnt");
+    mkdir("/mnt/lunaix-os");
+
+    if ((errno = mount("/dev/sdb", "/mnt/lunaix-os", "iso9660", 0))) {
+        syslog(2, "fail mounting boot medium. (%d)\n", errno);
+    }
+}
+
 void __USER__
 __proc0_usr()
 {
+    // 打开tty设备(控制台),作为标准输入输出。
+    //  tty设备属于序列设备(Sequential Device),该类型设备的上层读写
+    //  无须经过Lunaix的缓存层,而是直接下发到底层驱动。(不受FO_DIRECT的影响)
+    int fdstdout = open("/dev/tty", 0);
+    int fdstdin = dup2(stdout, 1);
+
+    __setup_dir();
+
     pid_t p;
-    if (!fork()) {
-        _pconsole_main();
-    }
 
     if (!(p = fork())) {
 #ifndef USE_DEMO
         _exit(0);
 #elif defined DEMO_SIGNAL
         _signal_demo_main();
+#elif defined DEMO_READDIR
+        _readdir_main();
+#elif defined DEMO_IOTEST
+        _iotest_main();
+#elif defined DEMO_INPUT_TEST
+        input_test();
+#elif defined DEMO_SIMPLE_SH
+        sh_main();
 #else
         _lxinit_main();
 #endif
+        printf("==== test end ====\n");
+        _exit(0);
     }
 
     waitpid(p, 0, 0);
@@ -92,6 +146,7 @@ __proc0()
 
     init_proc_user_space(__current);
 
+    // user space
     asm volatile("movw %0, %%ax\n"
                  "movw %%ax, %%es\n"
                  "movw %%ax, %%ds\n"
@@ -113,75 +168,49 @@ extern uint8_t __kernel_end;              /* link/linker.ld */
 extern uint8_t __init_hhk_end;            /* link/linker.ld */
 extern multiboot_info_t* _k_init_mb_info; /* k_init.c */
 
-char test_sequence[] = "Once upon a time, in a magical land of Equestria. "
-                       "There were two regal sisters who ruled together "
-                       "and created harmony for all the land.";
-
-void
-__test_disk_io()
-{
-    struct hba_port* port = ahci_get_port(0);
-    struct hba_device* dev = port->device;
-    char* buffer = vzalloc_dma(port->device->block_size);
-    strcpy(buffer, test_sequence);
-    kprintf("WRITE: %s\n", buffer);
-    int result;
-
-    // 写入第一扇区 (LBA=0)
-    result = dev->ops.write_buffer(dev, 0, buffer, dev->block_size);
-    if (!result) {
-        kprintf(KWARN "fail to write: %x\n", dev->last_error);
-    }
-
-    memset(buffer, 0, dev->block_size);
-
-    // 读出我们刚刚写的内容!
-    result = dev->ops.read_buffer(dev, 0, buffer, dev->block_size);
-    kprintf(KDEBUG "%x, %x\n", port->regs[HBA_RPxIS], port->regs[HBA_RPxTFD]);
-    if (!result) {
-        kprintf(KWARN "fail to read: %x\n", dev->last_error);
-    } else {
-        kprint_hex(buffer, 256);
-    }
-
-    vfree_dma(buffer);
-}
-
 void
 init_platform()
 {
+    kprintf(KINFO "\033[11;0mLunaixOS (gcc v%s, %s)\033[39;49m\n",
+            __VERSION__,
+            __TIME__);
+
     // 锁定所有系统预留页(内存映射IO,ACPI之类的),并且进行1:1映射
     lock_reserved_memory();
 
-    assert_msg(kalloc_init(), "Fail to initialize heap");
-
+    // firmware
     acpi_init(_k_init_mb_info);
+
+    // die
     apic_init();
     ioapic_init();
+
+    // debugger
+    serial_init();
+    sdbg_init();
+
+    // timers & clock
+    rtc_init();
     timer_init(SYS_TIMER_FREQUENCY_HZ);
     clock_init();
+
+    // peripherals & chipset features
     ps2_kbd_init();
-    pci_init();
+    block_init();
     ahci_init();
-    // ahci_list_device();
-
-    fsm_init();
-    vfs_init();
-    twifs_init();
 
-    vfs_mount("/", "twifs", -1);
-
-    //__test_disk_io();
-
-    // cake_stats();
-
-    syscall_install();
+    pci_init();
 
+    // console
     console_start_flushing();
     console_flush();
 
+    // expose cake allocator states to vfs
+    cake_export();
+
     unlock_reserved_memory();
 
+    // clean up
     for (size_t i = 0; i < (uintptr_t)(&__init_hhk_end); i += PG_SIZE) {
         vmm_del_mapping(PD_REFERENCED, (void*)i);
         pmm_free_page(KERNEL_PID, (void*)i);
@@ -217,6 +246,10 @@ __do_reserved_memory(int unlock)
         size_t pg_num = CEIL(mmap.len_low, PG_SIZE_BITS);
         size_t j = 0;
         if (!unlock) {
+            kprintf("mem: freeze: %p..%p type=%x\n",
+                    pa,
+                    pa + pg_num * PG_SIZE,
+                    mmap.type);
             for (; j < pg_num; j++) {
                 uintptr_t _pa = pa + (j << PG_SIZE_BITS);
                 if (_pa >= KERNEL_MM_BASE) {
@@ -230,6 +263,10 @@ __do_reserved_memory(int unlock)
             // Save the progress for later unmapping.
             mmaps[i].len_low = j * PG_SIZE;
         } else {
+            kprintf("mem: reclaim: %p..%p type=%x\n",
+                    pa,
+                    pa + pg_num * PG_SIZE,
+                    mmap.type);
             for (; j < pg_num; j++) {
                 uintptr_t _pa = pa + (j << PG_SIZE_BITS);
                 vmm_del_mapping(PD_REFERENCED, _pa);