/* Public Domain Curses */ #include "lppdc.h" #include <usb/usb.h> unsigned long pdc_key_modifiers = 0L; #if IS_ENABLED(CONFIG_LP_SERIAL_CONSOLE) /* We treat serial like a vt100 terminal. For now we do the cooking in here, but we should probably eventually pass it to dedicated vt100 code */ static int getkeyseq(char *buffer, int len, int max) { int i; while (1) { for(i = 0; i < 75; i++) { if (serial_havechar()) break; mdelay(1); } if (i == 75) return len; buffer[len++] = serial_getchar(); if (len == max) return len; } } static struct { const char *seq; int key; } escape_codes[] = { { "[A", KEY_UP }, { "[B", KEY_DOWN }, { "[C", KEY_RIGHT }, { "[D", KEY_LEFT }, { "[F", KEY_END }, { "[H", KEY_HOME }, { "[2~", KEY_IC }, { "[3~", KEY_DC }, { "[5~", KEY_PPAGE }, { "[6~", KEY_NPAGE }, { "OP", KEY_F(1) }, { "OQ", KEY_F(2) }, { "OR", KEY_F(3) }, { "OS", KEY_F(4) }, { "[15~", KEY_F(5) }, { "[17~", KEY_F(6) }, { "[18~", KEY_F(7) }, { "[19~", KEY_F(8) }, { "[20~", KEY_F(9) }, { "[21~", KEY_F(10) }, { "[23~", KEY_F(11) }, { "[24~", KEY_F(12) }, { NULL }, }; static int handle_escape(void) { char buffer[5]; int len = getkeyseq(buffer, 0, sizeof(buffer)); int i, t; if (len == 0) return 27; for(i = 0; escape_codes[i].seq != NULL; i++) { const char *p = escape_codes[i].seq; for(t = 0; t < len; t++) { if (!*p || *p != buffer[t]) break; p++; } if (t == len) return escape_codes[i].key; } return 0; } static int cook_serial(unsigned char ch) { switch(ch) { case 8: return KEY_BACKSPACE; case 27: return handle_escape(); default: return ch; } } #endif void PDC_set_keyboard_binary(bool on) { PDC_LOG(("PDC_set_keyboard_binary() - called\n")); } /* check if a key event is waiting */ bool PDC_check_key(void) { #if IS_ENABLED(CONFIG_LP_USB_HID) usb_poll(); if ((curses_flags & F_ENABLE_CONSOLE) && usbhid_havechar()) { return TRUE; } #endif #if IS_ENABLED(CONFIG_LP_PC_KEYBOARD) if ((curses_flags & F_ENABLE_CONSOLE) && keyboard_havechar()) { return TRUE; } #endif #if IS_ENABLED(CONFIG_LP_SERIAL_CONSOLE) if ((curses_flags & F_ENABLE_SERIAL) && serial_havechar()) { return TRUE; } #endif return FALSE; } /* return the next available key event */ int PDC_get_key(void) { int c = 0; #if IS_ENABLED(CONFIG_LP_USB_HID) usb_poll(); if ((curses_flags & F_ENABLE_CONSOLE) && usbhid_havechar()) { c = usbhid_getchar(); } #endif #if IS_ENABLED(CONFIG_LP_PC_KEYBOARD) if ((curses_flags & F_ENABLE_CONSOLE) && keyboard_havechar() && (c==0)) { c = keyboard_getchar(); } #endif #if IS_ENABLED(CONFIG_LP_SERIAL_CONSOLE) if ((curses_flags & F_ENABLE_SERIAL) && serial_havechar() && (c==0)) { c = cook_serial(serial_getchar()); } #endif SP->key_code = FALSE; if (c == 0) { c = ERR; } if (c >= KEY_MIN) { SP->key_code = TRUE; } return c; } /* discard any pending keyboard input -- this is the core routine for flushinp() */ void PDC_flushinp(void) { PDC_LOG(("PDC_flushinp() - called\n")); while (PDC_check_key()) PDC_get_key(); } int PDC_mouse_set(void) { return ERR; } int PDC_modifiers_set(void) { return OK; }