feat: standard vga support (mode switching, framebuffer remapping)

[lunaix-os.git] / lunaix-os / kernel / tty / lxconsole.c

diff --git a/lunaix-os/kernel/tty/lxconsole.c b/lunaix-os/kernel/tty/lxconsole.c
index 3404450048a9802cd638e0bdac58170db5abc902..5c18cbcf62cbbf12c29c4e976c919a8dfa24022f 100644 (file)
--- a/lunaix-os/kernel/tty/lxconsole.c
+++ b/lunaix-os/kernel/tty/lxconsole.c
@@ -1,3 +1,14 @@
+/**
+ * @file lxconsole.c
+ * @author Lunaixsky (lunaxisky@qq.com)
+ * @brief Provides simple terminal support
+ * @version 0.1
+ * @date 2023-06-18
+ *
+ * @copyright Copyright (c) 2023
+ *
+ */
+
 #include <klibc/string.h>
 #include <lunaix/device.h>
 #include <lunaix/input.h>
@@ -8,11 +19,10 @@
 #include <lunaix/mm/valloc.h>
 #include <lunaix/mm/vmm.h>
 #include <lunaix/sched.h>
+#include <lunaix/signal.h>
 #include <lunaix/tty/console.h>
 #include <lunaix/tty/tty.h>
 
-#include <lunaix/lxsignal.h>
-
 static struct console lx_console;
 
 int
@@ -21,6 +31,9 @@ __tty_write(struct device* dev, void* buf, size_t offset, size_t len);
 int
 __tty_read(struct device* dev, void* buf, size_t offset, size_t len);
 
+void
+console_write(struct console* console, u8_t* data, size_t size);
+
 void
 console_flush();
 
@@ -29,7 +42,7 @@ static volatile char ttychr;
 
 static volatile pid_t fg_pgid = 0;
 
-inline void
+static inline void
 print_control_code(const char cntrl)
 {
     console_write_char('^');
@@ -39,8 +52,8 @@ print_control_code(const char cntrl)
 int
 __lxconsole_listener(struct input_device* dev)
 {
-    uint32_t key = dev->current_pkt.sys_code;
-    uint32_t type = dev->current_pkt.pkt_type;
+    u32_t key = dev->current_pkt.sys_code;
+    u32_t type = dev->current_pkt.pkt_type;
     kbd_kstate_t state = key >> 16;
     ttychr = key & 0xff;
     key = key & 0xffff;
@@ -86,7 +99,7 @@ done:
 }
 
 int
-__tty_exec_cmd(struct device* dev, uint32_t req, va_list args)
+__tty_exec_cmd(struct device* dev, u32_t req, va_list args)
 {
     switch (req) {
         case TIOCGPGRP:
@@ -119,14 +132,18 @@ lxconsole_init()
     fifo_init(&lx_console.input, valloc(4096), 4096, 0);
 
     lx_console.flush_timer = NULL;
+}
 
-    struct device* tty_dev = device_addseq(NULL, &lx_console, "tty");
-    tty_dev->write = __tty_write;
-    tty_dev->read = __tty_read;
-    tty_dev->exec_cmd = __tty_exec_cmd;
+int
+__tty_write_pg(struct device* dev, void* buf, size_t offset)
+{
+    return __tty_write(dev, buf, offset, PG_SIZE);
+}
 
-    waitq_init(&lx_reader);
-    input_add_listener(__lxconsole_listener);
+int
+__tty_read_pg(struct device* dev, void* buf, size_t offset)
+{
+    return __tty_read(dev, buf, offset, PG_SIZE);
 }
 
 int
@@ -134,6 +151,8 @@ __tty_write(struct device* dev, void* buf, size_t offset, size_t len)
 {
     struct console* console = (struct console*)dev->underlay;
     console_write(console, buf, len);
+
+    return len;
 }
 
 int
@@ -176,6 +195,7 @@ __tty_read(struct device* dev, void* buf, size_t offset, size_t len)
             break;
         }
     }
+
     return count + fifo_read(&console->input, buf + count, len - count);
 }
 
@@ -257,15 +277,15 @@ console_flush()
 }
 
 void
-console_write(struct console* console, uint8_t* data, size_t size)
+console_write(struct console* console, u8_t* data, size_t size)
 {
     struct fifo_buf* fbuf = &console->output;
     mutex_lock(&console->output.lock);
     fifo_set_rdptr(fbuf, console->wnd_start);
 
-    uint8_t* buffer = fbuf->data;
-    uintptr_t ptr = fbuf->wr_pos;
-    uintptr_t rd_ptr = fbuf->rd_pos;
+    u8_t* buffer = fbuf->data;
+    ptr_t ptr = fbuf->wr_pos;
+    ptr_t rd_ptr = fbuf->rd_pos;
 
     char c;
     for (size_t i = 0; i < size; i++) {
@@ -294,18 +314,22 @@ console_write(struct console* console, uint8_t* data, size_t size)
     console->wnd_start = rd_ptr;
     fbuf->flags |= FIFO_DIRTY;
     mutex_unlock(&fbuf->lock);
+
+    if (!lx_console.flush_timer) {
+        console_flush();
+    }
 }
 
 void
 console_write_str(char* str)
 {
-    console_write(&lx_console, str, strlen(str));
+    console_write(&lx_console, (u8_t*)str, strlen(str));
 }
 
 void
 console_write_char(char str)
 {
-    console_write(&lx_console, &str, 1);
+    console_write(&lx_console, (u8_t*)&str, 1);
 }
 
 void
@@ -314,4 +338,29 @@ console_start_flushing()
     struct lx_timer* timer =
       timer_run_ms(20, console_flush, NULL, TIMER_MODE_PERIODIC);
     lx_console.flush_timer = timer;
-}
\ No newline at end of file
+}
+
+static int
+lxconsole_spawn_ttydev(struct device_def* devdef)
+{
+    struct device* tty_dev = device_allocseq(NULL, &lx_console);
+    tty_dev->ops.write = __tty_write;
+    tty_dev->ops.write_page = __tty_write_pg;
+    tty_dev->ops.read = __tty_read;
+    tty_dev->ops.read_page = __tty_read_pg;
+    tty_dev->ops.exec_cmd = __tty_exec_cmd;
+
+    waitq_init(&lx_reader);
+    input_add_listener(__lxconsole_listener);
+
+    device_register(tty_dev, &devdef->class, "tty");
+
+    return 0;
+}
+
+static struct device_def lxconsole_def = {
+    .name = "Lunaix Virtual Console",
+    .class = DEVCLASSV(DEVIF_NON, DEVFN_TTY, DEV_BUILTIN, 12),
+    .init = lxconsole_spawn_ttydev
+};
+EXPORT_DEVICE(lxconsole, &lxconsole_def, load_earlystage);
\ No newline at end of file