1 /*- 2 * Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <stand.h> 28 #include "bootstrap.h" 29 #include "glue.h" 30 31 int console; 32 33 static void uboot_cons_probe(struct console *cp); 34 static int uboot_cons_init(int); 35 static void uboot_cons_putchar(int); 36 static int uboot_cons_getchar(void); 37 static int uboot_cons_poll(void); 38 39 struct console uboot_console = { 40 .c_name = "uboot", 41 .c_desc = "U-Boot console", 42 .c_probe = uboot_cons_probe, 43 .c_init = uboot_cons_init, 44 .c_out = uboot_cons_putchar, 45 .c_in = uboot_cons_getchar, 46 .c_ready = uboot_cons_poll, 47 }; 48 49 static void 50 uboot_cons_probe(struct console *cp) 51 { 52 53 cp->c_flags |= (C_PRESENTIN | C_PRESENTOUT); 54 } 55 56 static int 57 uboot_cons_init(int arg) 58 { 59 60 return (0); 61 } 62 63 static void 64 uboot_cons_putchar(int c) 65 { 66 67 if (c == '\n') 68 ub_putc('\r'); 69 70 ub_putc(c); 71 } 72 73 static int 74 uboot_cons_getchar(void) 75 { 76 77 return (ub_getc()); 78 } 79 80 static int 81 uboot_cons_poll(void) 82 { 83 84 return (ub_tstc()); 85 } 86