src/console/console.c

   1 /*
   2  * Bootstrap code for the INTEL
   3  */
   4
   5 #include <console/console.h>
   6 #include <build.h>
   7 #include <arch/hlt.h>
   8 #include <arch/io.h>
   9
  10 #if CONFIG_CONSOLE_NE2K
  11 #include <console/ne2k.h>
  12 #endif
  13
  14 #ifndef __PRE_RAM__
  15 #include <string.h>
  16 #include <pc80/mc146818rtc.h>
  17
  18 /* initialize the console */
  19 void console_init(void)
  20 {
  21         struct console_driver *driver;
  22         if(get_option(&console_loglevel, "debug_level"))
  23                 console_loglevel=CONFIG_DEFAULT_CONSOLE_LOGLEVEL;
  24
  25         for(driver = console_drivers; driver < econsole_drivers; driver++) {
  26                 if (!driver->init)
  27                         continue;
  28                 driver->init();
  29         }
  30 }
  31
  32 static void __console_tx_byte(unsigned char byte)
  33 {
  34         struct console_driver *driver;
  35         for(driver = console_drivers; driver < econsole_drivers; driver++) {
  36                 driver->tx_byte(byte);
  37         }
  38 }
  39
  40 void console_tx_flush(void)
  41 {
  42         struct console_driver *driver;
  43         for(driver = console_drivers; driver < econsole_drivers; driver++) {
  44                 if (!driver->tx_flush)
  45                         continue;
  46                 driver->tx_flush();
  47         }
  48 }
  49
  50 void console_tx_byte(unsigned char byte)
  51 {
  52         if (byte == '\n')
  53                 __console_tx_byte('\r');
  54         __console_tx_byte(byte);
  55 }
  56
  57 unsigned char console_rx_byte(void)
  58 {
  59         struct console_driver *driver;
  60         for(driver = console_drivers; driver < econsole_drivers; driver++) {
  61                 if (driver->tst_byte)
  62                         break;
  63         }
  64         if (driver == econsole_drivers)
  65                 return 0;
  66         while (!driver->tst_byte());
  67         return driver->rx_byte();
  68 }
  69
  70 int console_tst_byte(void)
  71 {
  72         struct console_driver *driver;
  73         for(driver = console_drivers; driver < econsole_drivers; driver++)
  74                 if (driver->tst_byte)
  75                         return driver->tst_byte();
  76         return 0;
  77 }
  78
  79 /*
  80  *    Write POST information
  81  */
  82 void post_code(u8 value)
  83 {
  84 #if !defined(CONFIG_NO_POST) || CONFIG_NO_POST==0
  85 #if CONFIG_SERIAL_POST==1
  86         printk(BIOS_EMERG, "POST: 0x%02x\n", value);
  87 #endif
  88         outb(value, 0x80);
  89 #endif
  90 }
  91
  92 /* Report a fatal error */
  93 void __attribute__((noreturn)) die(const char *msg)
  94 {
  95         printk(BIOS_EMERG, "%s", msg);
  96         //post_code(0xff);
  97         for (;;)
  98                 hlt();          /* Halt */
  99 }
 100
 101 #else
 102
 103 void console_init(void)
 104 {
 105
 106 #if CONFIG_CONSOLE_NE2K
 107         ne2k_init(CONFIG_CONSOLE_NE2K_IO_PORT);
 108 #endif
 109         static const char console_test[] =
 110                 "\n\ncoreboot-"
 111                 COREBOOT_VERSION
 112                 COREBOOT_EXTRA_VERSION
 113                 " "
 114                 COREBOOT_BUILD
 115                 " starting...\n";
 116         print_info(console_test);
 117 }
 118
 119 void post_code(u8 value)
 120 {
 121 #if !defined(CONFIG_NO_POST) || CONFIG_NO_POST==0
 122 #if CONFIG_SERIAL_POST==1
 123         print_emerg("POST: 0x");
 124         print_emerg_hex8(value);
 125         print_emerg("\n");
 126 #endif
 127         outb(value, 0x80);
 128 #endif
 129 }
 130
 131 void die(const char *str)
 132 {
 133         print_emerg(str);
 134         do {
 135                 hlt();
 136         } while(1);
 137 }
 138 #endif