Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 1 | /* |
Martin Roth | 50d887d | 2013-07-08 16:22:54 -0600 | [diff] [blame] | 2 | * blatantly copied from linux/kernel/printk.c |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 3 | * |
| 4 | * Copyright (C) 1991, 1992 Linus Torvalds |
Timothy Pearson | 44d5342 | 2015-05-18 16:04:10 -0500 | [diff] [blame] | 5 | * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 6 | * |
| 7 | */ |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 8 | |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 9 | #include <console/console.h> |
Kyösti Mälkki | 4076072 | 2014-02-27 19:30:18 +0200 | [diff] [blame] | 10 | #include <console/streams.h> |
Edward O'Callaghan | 0ddb826 | 2014-06-17 18:37:08 +1000 | [diff] [blame] | 11 | #include <console/vtxprintf.h> |
| 12 | #include <smp/spinlock.h> |
| 13 | #include <smp/node.h> |
| 14 | #include <stddef.h> |
Rudolf Marek | 7f0e930 | 2011-09-02 23:23:41 +0200 | [diff] [blame] | 15 | #include <trace.h> |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 16 | |
Timothy Pearson | 44d5342 | 2015-05-18 16:04:10 -0500 | [diff] [blame] | 17 | #if (!defined(__PRE_RAM__) && IS_ENABLED(CONFIG_HAVE_ROMSTAGE_CONSOLE_SPINLOCK)) || !IS_ENABLED(CONFIG_HAVE_ROMSTAGE_CONSOLE_SPINLOCK) |
Myles Watson | 2e67273 | 2009-11-12 16:38:03 +0000 | [diff] [blame] | 18 | DECLARE_SPIN_LOCK(console_lock) |
Timothy Pearson | 44d5342 | 2015-05-18 16:04:10 -0500 | [diff] [blame] | 19 | #endif |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 20 | |
Kyösti Mälkki | 657e0be | 2014-02-04 19:03:57 +0200 | [diff] [blame] | 21 | void do_putchar(unsigned char byte) |
| 22 | { |
Kyösti Mälkki | 657e0be | 2014-02-04 19:03:57 +0200 | [diff] [blame] | 23 | console_tx_byte(byte); |
| 24 | } |
| 25 | |
Kyösti Mälkki | 77f43e9 | 2014-02-04 19:50:07 +0200 | [diff] [blame] | 26 | static void wrap_putchar(unsigned char byte, void *data) |
Kyösti Mälkki | b04e0ff | 2014-02-04 14:28:17 +0200 | [diff] [blame] | 27 | { |
| 28 | do_putchar(byte); |
| 29 | } |
| 30 | |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 31 | int do_printk(int msg_level, const char *fmt, ...) |
| 32 | { |
| 33 | va_list args; |
| 34 | int i; |
| 35 | |
Kyösti Mälkki | 56ae139 | 2014-02-28 14:37:27 +0200 | [diff] [blame] | 36 | if (!console_log_level(msg_level)) |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 37 | return 0; |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 38 | |
Edward O'Callaghan | 0ddb826 | 2014-06-17 18:37:08 +1000 | [diff] [blame] | 39 | #if IS_ENABLED (CONFIG_SQUELCH_EARLY_SMP) && defined(__PRE_RAM__) |
Kyösti Mälkki | b2d2596 | 2014-01-27 15:09:13 +0200 | [diff] [blame] | 40 | if (!boot_cpu()) |
| 41 | return 0; |
| 42 | #endif |
| 43 | |
Rudolf Marek | 7f0e930 | 2011-09-02 23:23:41 +0200 | [diff] [blame] | 44 | DISABLE_TRACE; |
Timothy Pearson | 44d5342 | 2015-05-18 16:04:10 -0500 | [diff] [blame] | 45 | #ifdef __PRE_RAM__ |
| 46 | #if IS_ENABLED(CONFIG_HAVE_ROMSTAGE_CONSOLE_SPINLOCK) |
| 47 | spin_lock(romstage_console_lock()); |
| 48 | #endif |
| 49 | #else |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 50 | spin_lock(&console_lock); |
Timothy Pearson | 44d5342 | 2015-05-18 16:04:10 -0500 | [diff] [blame] | 51 | #endif |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 52 | |
| 53 | va_start(args, fmt); |
Kyösti Mälkki | b04e0ff | 2014-02-04 14:28:17 +0200 | [diff] [blame] | 54 | i = vtxprintf(wrap_putchar, fmt, args, NULL); |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 55 | va_end(args); |
| 56 | |
| 57 | console_tx_flush(); |
| 58 | |
Timothy Pearson | 44d5342 | 2015-05-18 16:04:10 -0500 | [diff] [blame] | 59 | #ifdef __PRE_RAM__ |
| 60 | #if IS_ENABLED(CONFIG_HAVE_ROMSTAGE_CONSOLE_SPINLOCK) |
| 61 | spin_unlock(romstage_console_lock()); |
| 62 | #endif |
| 63 | #else |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 64 | spin_unlock(&console_lock); |
Timothy Pearson | 44d5342 | 2015-05-18 16:04:10 -0500 | [diff] [blame] | 65 | #endif |
Rudolf Marek | 7f0e930 | 2011-09-02 23:23:41 +0200 | [diff] [blame] | 66 | ENABLE_TRACE; |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 67 | |
| 68 | return i; |
| 69 | } |
Kyösti Mälkki | b3356bb | 2014-03-06 16:55:05 +0200 | [diff] [blame] | 70 | |
Edward O'Callaghan | 0ddb826 | 2014-06-17 18:37:08 +1000 | [diff] [blame] | 71 | #if IS_ENABLED (CONFIG_CHROMEOS) |
Aaron Durbin | 8fb36c0 | 2015-05-01 16:48:54 -0500 | [diff] [blame] | 72 | void do_printk_va_list(int msg_level, const char *fmt, va_list args) |
Kyösti Mälkki | b3356bb | 2014-03-06 16:55:05 +0200 | [diff] [blame] | 73 | { |
Aaron Durbin | 8fb36c0 | 2015-05-01 16:48:54 -0500 | [diff] [blame] | 74 | if (!console_log_level(msg_level)) |
| 75 | return; |
Kyösti Mälkki | b04e0ff | 2014-02-04 14:28:17 +0200 | [diff] [blame] | 76 | vtxprintf(wrap_putchar, fmt, args, NULL); |
Kyösti Mälkki | b3356bb | 2014-03-06 16:55:05 +0200 | [diff] [blame] | 77 | console_tx_flush(); |
| 78 | } |
Edward O'Callaghan | 0ddb826 | 2014-06-17 18:37:08 +1000 | [diff] [blame] | 79 | #endif /* CONFIG_CHROMEOS */ |