arch/arm/mach-s3c44b0x/driver/console.c

   1 #include <linux/init.h>
   2 #include <linux/console.h>
   3 #include <asm/arch/hardware.h>
   4
   5 void s3c44b0x_uart_putc(const char c)
   6 {
   7         while(!(SYSREG_GET(S3C44B0X_UTRSTAT0) & 0x2));
   8         SYSREG_SETB(S3C44B0X_UTXH0, c);
   9 }
  10
  11 void s3c44b0x_console_write(struct console *co, const char *b, unsigned count)
  12 {
  13         while(count) {
  14                 s3c44b0x_uart_putc(*b);
  15                 if (*b == '\n')
  16                         s3c44b0x_uart_putc('\r');
  17                 ++b;
  18                 --count;
  19         }
  20 }
  21
  22 static int __init s3c44b0x_console_setup(struct console *co, char *options)
  23 {
  24         return 0;
  25 }
  26
  27 struct console s3c44b0x_con_driver = {
  28         .name           = "S3C44B0X",
  29         .write          = s3c44b0x_console_write,
  30         .setup          = s3c44b0x_console_setup,
  31         .flags          = CON_PRINTBUFFER,
  32         .index          = -1,
  33 };
  34
  35 static int __init s3c44b0x_console_init(void)
  36 {
  37         register_console(&s3c44b0x_con_driver);
  38         return 0;
  39 }
  40
  41 console_initcall(s3c44b0x_console_init);