+/**
+ * @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>
+#include <lunaix/ioctl.h>
#include <lunaix/keyboard.h>
#include <lunaix/lxconsole.h>
#include <lunaix/mm/pmm.h>
#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>
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();
+
static waitq_t lx_reader;
-static volatile char key;
+static volatile char ttychr;
+
+static volatile pid_t fg_pgid = 0;
+
+static inline void
+print_control_code(const char cntrl)
+{
+ console_write_char('^');
+ console_write_char(cntrl + 64);
+}
int
__lxconsole_listener(struct input_device* dev)
{
- uint32_t keycode = dev->current_pkt.sys_code;
- uint32_t type = dev->current_pkt.pkt_type;
- if (type == PKT_PRESS) {
- if (keycode == KEY_PG_UP) {
- console_view_up();
- } else if (keycode == KEY_PG_DOWN) {
- console_view_down();
- }
+ 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;
+
+ if (type == PKT_RELEASE) {
goto done;
}
- if ((keycode & 0xff00) > KEYPAD) {
+
+ if ((state & KBD_KEY_FLCTRL_HELD)) {
+ char cntrl = (char)(ttychr | 0x20);
+ if ('a' > cntrl || cntrl > 'z') {
+ goto done;
+ }
+ ttychr = cntrl - 'a' + 1;
+ switch (ttychr) {
+ case TCINTR:
+ signal_send(-fg_pgid, _SIGINT);
+ print_control_code(ttychr);
+ break;
+ case TCSTOP:
+ signal_send(-fg_pgid, _SIGSTOP);
+ print_control_code(ttychr);
+ break;
+ default:
+ break;
+ }
+ } else if (key == KEY_PG_UP) {
+ console_view_up();
+ goto done;
+ } else if (key == KEY_PG_DOWN) {
+ console_view_down();
+ goto done;
+ } else if ((key & 0xff00) <= KEYPAD) {
+ ttychr = key;
+ } else {
goto done;
}
- key = (char)(keycode & 0x00ff);
-
pwake_all(&lx_reader);
done:
return INPUT_EVT_NEXT;
}
+int
+__tty_exec_cmd(struct device* dev, u32_t req, va_list args)
+{
+ switch (req) {
+ case TIOCGPGRP:
+ return fg_pgid;
+ case TIOCSPGRP:
+ fg_pgid = va_arg(args, pid_t);
+ break;
+ case TIOCCLSBUF:
+ fifo_clear(&lx_console.output);
+ fifo_clear(&lx_console.input);
+ lx_console.wnd_start = 0;
+ lx_console.lines = 0;
+ lx_console.output.flags |= FIFO_DIRTY;
+ break;
+ case TIOCFLUSH:
+ lx_console.output.flags |= FIFO_DIRTY;
+ console_flush();
+ break;
+ default:
+ return EINVAL;
+ }
+ return 0;
+}
+
void
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;
+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
{
struct console* console = (struct console*)dev->underlay;
console_write(console, buf, len);
+
+ return len;
}
int
while (count < len) {
pwait(&lx_reader);
- if (key == 0x08) {
- if (fifo_backone(&console->input)) {
- console_write_char(key);
+ if (ttychr < 0x1B) {
+ // ASCII control codes
+ switch (ttychr) {
+ case TCINTR:
+ fifo_clear(&console->input);
+ return 0;
+ case TCBS:
+ if (fifo_backone(&console->input)) {
+ console_write_char(ttychr);
+ }
+ continue;
+ case TCLF:
+ case TCCR:
+ goto proceed;
+ default:
+ break;
}
+ print_control_code(ttychr);
continue;
}
- console_write_char(key);
- if (!fifo_putone(&console->input, key) || key == '\n') {
+
+ proceed:
+ console_write_char(ttychr);
+ if (!fifo_putone(&console->input, ttychr) || ttychr == '\n') {
break;
}
}
+
return count + fifo_read(&console->input, buf + count, len - count);
}
}
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;
- int j = 0;
for (size_t i = 0; i < size; i++) {
c = data[i];
if (!c) {
}
if (c == '\n') {
console->lines++;
+ } else if (c == '\x08') {
+ ptr = ptr ? ptr - 1 : fbuf->size - 1;
+ continue;
}
- buffer[(ptr + j) % fbuf->size] = c;
- j++;
+ buffer[ptr] = c;
+ ptr = (ptr + 1) % fbuf->size;
}
- fifo_set_wrptr(fbuf, (ptr + j) % fbuf->size);
+ fifo_set_wrptr(fbuf, ptr);
while (console->lines >= TTY_HEIGHT) {
rd_ptr = __find_next_line(rd_ptr);
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
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_addseq(NULL, &lx_console, "tty");
+ 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);
+
+ return 0;
+}
+
+static struct device_def lxconsole_def = {
+ .name = "Lunaix Virtual Console",
+ .class = DEVCLASS(DEVIF_NON, DEVFN_TTY, DEV_BUILTIN, 0),
+ .init = lxconsole_spawn_ttydev
+};
+EXPORT_DEVICE(lxconsole, &lxconsole_def, load_earlystage);
\ No newline at end of file
git://scm.lunaixsky.com / lunaix-os.git / blobdiff