summaryrefslogtreecommitdiff
path: root/src/user/app/init/driver
diff options
context:
space:
mode:
Diffstat (limited to 'src/user/app/init/driver')
-rw-r--r--src/user/app/init/driver/driver.h8
-rw-r--r--src/user/app/init/driver/initctl.c44
-rw-r--r--src/user/app/init/driver/ps2.c129
-rw-r--r--src/user/app/init/driver/termcook.c103
4 files changed, 0 insertions, 284 deletions
diff --git a/src/user/app/init/driver/driver.h b/src/user/app/init/driver/driver.h
deleted file mode 100644
index 98c18f1..0000000
--- a/src/user/app/init/driver/driver.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#pragma once
-#include <camellia/types.h>
-
-void initctl_drv(hid_t killswitch);
-void ps2_drv(void);
-void tmpfs_drv(void);
-
-void termcook(void);
diff --git a/src/user/app/init/driver/initctl.c b/src/user/app/init/driver/initctl.c
deleted file mode 100644
index fed71b7..0000000
--- a/src/user/app/init/driver/initctl.c
+++ /dev/null
@@ -1,44 +0,0 @@
-#include "driver.h"
-#include <camellia/syscalls.h>
-#include <ctype.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <camellia/compat.h>
-
-void initctl_drv(hid_t killswitch) {
- struct ufs_request res;
- char buf[64];
- const size_t buflen = sizeof buf;
- while (!c0_fs_wait(buf, buflen, &res)) {
- switch (res.op) {
- case VFSOP_OPEN:
- c0_fs_respond(NULL, res.len == 0 ? 0 : -1, 0);
- break;
- case VFSOP_WRITE:
- /* null terminate */
- if (res.len > buflen - 1)
- res.len = buflen - 1;
- buf[res.len] = '\0';
- /* cut at first whitespace */
- for (size_t i = 0; buf[i]; i++) {
- if (isspace(buf[i])) {
- buf[i] = '\0';
- break;
- }
- }
- if (!strcmp(buf, "halt")) {
- _sys_write(killswitch, "halt", 4, 0, 0);
- }
- if (!strcmp(buf, "intr")) {
- _sys_write(killswitch, "intr", 4, 0, 0);
- }
- c0_fs_respond(NULL, res.len, 0);
- break;
- default:
- c0_fs_respond(NULL, -ENOSYS, 0);
- break;
- }
- }
- exit(1);
-}
diff --git a/src/user/app/init/driver/ps2.c b/src/user/app/init/driver/ps2.c
deleted file mode 100644
index 5470249..0000000
--- a/src/user/app/init/driver/ps2.c
+++ /dev/null
@@ -1,129 +0,0 @@
-#include "driver.h"
-#include <assert.h>
-#include <camellia/compat.h>
-#include <camellia/syscalls.h>
-#include <errno.h>
-#include <shared/ring.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include <thread.h>
-
-
-static const char keymap_lower[] = {
- '\0', '\0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', '\b', '\t',
- 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\r', '\0', 'a', 's',
- 'd', 'f', 'g', 'h', 'j', 'k', 'l', '\0', '\'', '`', '\0', '\\', 'z', 'x', 'c', 'v',
- 'b', 'n', 'm', ',', '.', '/', '\0', '*', '\0', ' ', '\0', '\0', '\0', '\0', '\0', '\0',
- '\0', '\0', '\0', '\0', '\0', '\0', '\0', '7', '8', '9', '-', '4', '5', '6', '+', '1',
- '2', '3', '0', '.', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
- '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
- '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
-};
-
-static const char keymap_upper[] = {
- '\0', '\0', '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', '\b', '\t',
- 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\r', '\0', 'A', 'S',
- 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', '~', '\0', '|', 'Z', 'X', 'C', 'V',
- 'B', 'N', 'M', '<', '>', '?', '\0', '*', '\0', ' ', '\0', '\0', '\0', '\0', '\0', '\0',
- '\0', '\0', '\0', '\0', '\0', '\0', '\0', '7', '8', '9', '-', '4', '5', '6', '+', '1',
- '2', '3', '0', '.', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
- '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
- '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
-};
-
-
-static volatile uint8_t backlog_buf[16];
-static volatile ring_t backlog = {(void*)backlog_buf, sizeof backlog_buf, 0, 0};
-
-static hid_t fd;
-
-static bool keys[0x80] = {0};
-
-static void parse_scancode(uint8_t s) {
- bool ctrl = keys[0x1D];
- bool shift = keys[0x2A] || keys[0x36];
- bool down = !(s & 0x80);
- char c;
- s &= 0x7f;
- keys[s] = down;
-
- c = shift ? keymap_upper[s] : keymap_lower[s];
- if (ctrl && keymap_upper[s] >= 'A' && keymap_upper[s] <= 'Z')
- c = keymap_upper[s] - 'A' + 1;
- if (down && c) ring_put1b((void*)&backlog, c);
-}
-
-
-/** Is a thread waiting for /kdev/ps2/kb? */
-static volatile bool blocked = false;
-/* for use in read_thread */
-static hid_t rt_reqh;
-static size_t rt_cap;
-
-static void read_thread(void *unused) {
- char buf[512];
- (void)unused;
-
- assert(blocked);
- while (ring_used((void*)&backlog) == 0) {
- /* read raw input until we have something to output */
- int len = _sys_read(fd, buf, sizeof buf, 0);
- if (len == 0) break;
- for (int i = 0; i < len; i++)
- parse_scancode(buf[i]);
- }
- if (ring_used((void*)&backlog) > 0) {
- int ret = ring_get((void*)&backlog, buf, rt_cap);
- _sys_fs_respond(rt_reqh, buf, ret, 0);
- } else {
- _sys_fs_respond(rt_reqh, 0, -EGENERIC, 0);
- }
- blocked = false;
-}
-
-static void fs_loop(void) {
- static char buf[512];
- int ret;
- for (;;) {
- struct ufs_request res;
- hid_t reqh = _sys_fs_wait(buf, sizeof buf, &res);
- if (reqh < 0) return;
-
- switch (res.op) {
- case VFSOP_OPEN:
- if (res.len == 0) {
- _sys_fs_respond(reqh, NULL, 1, 0);
- } else {
- _sys_fs_respond(reqh, NULL, -ENOENT, 0);
- }
- break;
-
- case VFSOP_READ:
- if (blocked) {
- _sys_fs_respond(reqh, NULL, -EAGAIN, 0);
- break;
- } else if (ring_used((void*)&backlog) > 0) {
- ret = ring_get((void*)&backlog, buf, res.capacity);
- _sys_fs_respond(reqh, buf, ret, 0);
- } else {
- blocked = true;
- rt_reqh = reqh;
- rt_cap = res.capacity;
- thread_create(0, read_thread, 0);
- }
- break;
-
- default:
- _sys_fs_respond(reqh, NULL, -1, 0);
- break;
- }
- }
-}
-
-void ps2_drv(void) {
- fd = _sys_open("/kdev/ps2/kb", 12, 0);
- if (fd < 0) exit(1);
-
- fs_loop();
- exit(0);
-}
diff --git a/src/user/app/init/driver/termcook.c b/src/user/app/init/driver/termcook.c
deleted file mode 100644
index a76f3a8..0000000
--- a/src/user/app/init/driver/termcook.c
+++ /dev/null
@@ -1,103 +0,0 @@
-#include "driver.h"
-#include <camellia/syscalls.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-enum tstate {
- Normal,
- Esc,
- CSI,
-};
-
-static void w_output(hid_t output, const char *buf, size_t len) {
- size_t pos = 0;
- while (pos < len) {
- int ret = _sys_write(output, buf + pos, len - pos, pos, 0);
- if (ret < 0) break;
- pos += ret;
- }
-}
-
-static void line_editor(hid_t input, hid_t output) {
- char readbuf[16], linebuf[256];
- size_t linepos = 0;
- enum tstate state = Normal;
- for (;;) {
- int readlen = _sys_read(input, readbuf, sizeof readbuf, -1);
- if (readlen < 0) return;
- for (int i = 0; i < readlen; i++) {
- char c = readbuf[i];
- switch (state) {
- case Normal:
- switch (c) {
- case '\b':
- case 0x7f:
- if (linepos != 0) {
- printf("\b \b");
- linepos--;
- }
- break;
- case 3: /* C-c */
- _sys_exit(1);
- case 4: /* EOT, C-d */
- if (linepos > 0) {
- w_output(output, linebuf, linepos);
- linepos = 0;
- } else {
- _sys_write(output, NULL, 0, 0, 0); /* EOF */
- }
- break;
- case '\n':
- case '\r':
- printf("\n");
- if (linepos < sizeof linebuf)
- linebuf[linepos++] = '\n';
- w_output(output, linebuf, linepos);
- linepos = 0;
- break;
- case '\e':
- state = Esc;
- break;
- case '\t':
- break;
- default:
- if (linepos < sizeof linebuf) {
- linebuf[linepos++] = c;
- printf("%c", c);
- }
- break;
- }
- break;
- case Esc:
- if (c == '[') state = CSI;
- else state = Normal;
- break;
- case CSI:
- if (0x40 <= c && c <= 0x7E) state = Normal;
- break;
- }
- }
- }
-}
-
-void termcook(void) {
- hid_t stdin_pipe[2] = {-1, -1};
- if (_sys_pipe(stdin_pipe, 0) < 0)
- return;
-
- if (!fork()) {
- /* the caller continues in a child process,
- * so it can be killed when the line editor quits */
- _sys_dup(stdin_pipe[0], 0, 0);
- close(stdin_pipe[0]);
- close(stdin_pipe[1]);
- return;
- }
- if (!fork()) {
- close(stdin_pipe[0]);
- line_editor(0, stdin_pipe[1]);
- exit(0);
- }
- exit(_sys_await());
-}
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-23 05:14:46 +0000