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Leonmmcoset
2026-04-14 18:28:29 +08:00
parent db4811a421
commit 81425929f5
9 changed files with 154 additions and 28 deletions
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96
clks/kernel/keyboard.c
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@@ -23,6 +23,7 @@
#define CLKS_SC_EXT_DELETE 0x53U
#define CLKS_KBD_INPUT_CAP 256U
#define CLKS_KBD_TTY_MAX 8U
#define CLKS_KBD_DROP_LOG_EVERY 64ULL
static const char clks_kbd_map[128] = {
@@ -47,10 +48,10 @@ static const char clks_kbd_shift_map[128] = {
[51] = '<', [52] = '>', [53] = '?', [57] = ' '
};
static char clks_kbd_input_queue[CLKS_KBD_INPUT_CAP];
static u16 clks_kbd_input_head = 0U;
static u16 clks_kbd_input_tail = 0U;
static u16 clks_kbd_input_count = 0U;
static char clks_kbd_input_queue[CLKS_KBD_TTY_MAX][CLKS_KBD_INPUT_CAP];
static u16 clks_kbd_input_head[CLKS_KBD_TTY_MAX];
static u16 clks_kbd_input_tail[CLKS_KBD_TTY_MAX];
static u16 clks_kbd_input_count[CLKS_KBD_TTY_MAX];
static clks_bool clks_kbd_alt_down = CLKS_FALSE;
static clks_bool clks_kbd_lshift_down = CLKS_FALSE;
@@ -62,6 +63,30 @@ static u64 clks_kbd_push_count = 0ULL;
static u64 clks_kbd_pop_count = 0ULL;
static u64 clks_kbd_drop_count = 0ULL;
static u32 clks_keyboard_effective_tty_count(void) {
u32 tty_count = clks_tty_count();
if (tty_count == 0U) {
return 1U;
}
if (tty_count > CLKS_KBD_TTY_MAX) {
return CLKS_KBD_TTY_MAX;
}
return tty_count;
}
static u32 clks_keyboard_clamp_tty_index(u32 tty_index) {
u32 tty_count = clks_keyboard_effective_tty_count();
if (tty_index >= tty_count) {
return 0U;
}
return tty_index;
}
static char clks_keyboard_translate_ext_scancode(u8 code) {
switch (code) {
case CLKS_SC_EXT_LEFT:
@@ -83,21 +108,24 @@ static char clks_keyboard_translate_ext_scancode(u8 code) {
}
}
static clks_bool clks_keyboard_queue_push(char ch) {
if (clks_kbd_input_count >= CLKS_KBD_INPUT_CAP) {
static clks_bool clks_keyboard_queue_push_for_tty(u32 tty_index, char ch) {
u32 tty = clks_keyboard_clamp_tty_index(tty_index);
if (clks_kbd_input_count[tty] >= CLKS_KBD_INPUT_CAP) {
clks_kbd_drop_count++;
if ((clks_kbd_drop_count % CLKS_KBD_DROP_LOG_EVERY) == 1ULL) {
clks_log(CLKS_LOG_WARN, "KBD", "INPUT QUEUE OVERFLOW");
clks_log_hex(CLKS_LOG_WARN, "KBD", "TTY", (u64)tty);
clks_log_hex(CLKS_LOG_WARN, "KBD", "DROPPED", clks_kbd_drop_count);
}
return CLKS_FALSE;
}
clks_kbd_input_queue[clks_kbd_input_head] = ch;
clks_kbd_input_head = (u16)((clks_kbd_input_head + 1U) % CLKS_KBD_INPUT_CAP);
clks_kbd_input_count++;
clks_kbd_input_queue[tty][clks_kbd_input_head[tty]] = ch;
clks_kbd_input_head[tty] = (u16)((clks_kbd_input_head[tty] + 1U) % CLKS_KBD_INPUT_CAP);
clks_kbd_input_count[tty]++;
clks_kbd_push_count++;
return CLKS_TRUE;
}
@@ -131,9 +159,14 @@ static char clks_keyboard_translate_scancode(u8 code) {
}
void clks_keyboard_init(void) {
clks_kbd_input_head = 0U;
clks_kbd_input_tail = 0U;
clks_kbd_input_count = 0U;
u32 tty;
for (tty = 0U; tty < CLKS_KBD_TTY_MAX; tty++) {
clks_kbd_input_head[tty] = 0U;
clks_kbd_input_tail[tty] = 0U;
clks_kbd_input_count[tty] = 0U;
}
clks_kbd_alt_down = CLKS_FALSE;
clks_kbd_lshift_down = CLKS_FALSE;
clks_kbd_rshift_down = CLKS_FALSE;
@@ -184,10 +217,13 @@ void clks_keyboard_handle_scancode(u8 scancode) {
if (clks_kbd_e0_prefix == CLKS_TRUE) {
char ext = clks_keyboard_translate_ext_scancode(code);
u32 active_tty = clks_tty_active();
clks_kbd_e0_prefix = CLKS_FALSE;
if (ext != '\0' && clks_keyboard_shell_input_enabled() == CLKS_TRUE) {
if (clks_keyboard_queue_push(ext) == CLKS_TRUE && clks_keyboard_should_pump_shell_now() == CLKS_TRUE) {
if (ext != '\0') {
if (clks_keyboard_queue_push_for_tty(active_tty, ext) == CLKS_TRUE &&
clks_keyboard_should_pump_shell_now() == CLKS_TRUE) {
clks_shell_pump_input(1U);
}
}
@@ -215,9 +251,11 @@ void clks_keyboard_handle_scancode(u8 scancode) {
{
char translated = clks_keyboard_translate_scancode(code);
u32 active_tty = clks_tty_active();
if (translated != '\0' && clks_keyboard_shell_input_enabled() == CLKS_TRUE) {
if (clks_keyboard_queue_push(translated) == CLKS_TRUE && clks_keyboard_should_pump_shell_now() == CLKS_TRUE) {
if (translated != '\0') {
if (clks_keyboard_queue_push_for_tty(active_tty, translated) == CLKS_TRUE &&
clks_keyboard_should_pump_shell_now() == CLKS_TRUE) {
clks_shell_pump_input(1U);
}
}
@@ -228,20 +266,33 @@ u64 clks_keyboard_hotkey_switch_count(void) {
return clks_kbd_hotkey_switches;
}
clks_bool clks_keyboard_pop_char(char *out_ch) {
if (out_ch == CLKS_NULL || clks_kbd_input_count == 0U) {
clks_bool clks_keyboard_pop_char_for_tty(u32 tty_index, char *out_ch) {
u32 tty = clks_keyboard_clamp_tty_index(tty_index);
if (out_ch == CLKS_NULL || clks_kbd_input_count[tty] == 0U) {
return CLKS_FALSE;
}
*out_ch = clks_kbd_input_queue[clks_kbd_input_tail];
clks_kbd_input_tail = (u16)((clks_kbd_input_tail + 1U) % CLKS_KBD_INPUT_CAP);
clks_kbd_input_count--;
*out_ch = clks_kbd_input_queue[tty][clks_kbd_input_tail[tty]];
clks_kbd_input_tail[tty] = (u16)((clks_kbd_input_tail[tty] + 1U) % CLKS_KBD_INPUT_CAP);
clks_kbd_input_count[tty]--;
clks_kbd_pop_count++;
return CLKS_TRUE;
}
clks_bool clks_keyboard_pop_char(char *out_ch) {
return clks_keyboard_pop_char_for_tty(clks_tty_active(), out_ch);
}
u64 clks_keyboard_buffered_count(void) {
return (u64)clks_kbd_input_count;
u64 total = 0ULL;
u32 tty;
for (tty = 0U; tty < CLKS_KBD_TTY_MAX; tty++) {
total += (u64)clks_kbd_input_count[tty];
}
return total;
}
u64 clks_keyboard_drop_count(void) {
@@ -255,4 +306,3 @@ u64 clks_keyboard_push_count(void) {
u64 clks_keyboard_pop_count(void) {
return clks_kbd_pop_count;
}