diff options
Diffstat (limited to 'util/romcc/tests/hello_world1.c')
-rw-r--r-- | util/romcc/tests/hello_world1.c | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/util/romcc/tests/hello_world1.c b/util/romcc/tests/hello_world1.c deleted file mode 100644 index cba88a9a6d..0000000000 --- a/util/romcc/tests/hello_world1.c +++ /dev/null @@ -1,128 +0,0 @@ -void outb(unsigned char value, unsigned short port) -{ - __builtin_outb(value, port); -} - -unsigned char inb(unsigned short port) -{ - return __builtin_inb(port); -} - -/* Base Address */ -#ifndef CONFIG_TTYS0_BASE -#define CONFIG_TTYS0_BASE 0x3f8 -#endif - -#ifndef CONFIG_TTYS0_BAUD -#define CONFIG_TTYS0_BAUD 115200 -#endif - -#if ((115200%CONFIG_TTYS0_BAUD) != 0) -#error Bad ttys0 baud rate -#endif - -#if CONFIG_TTYS0_BAUD == 115200 -#define CONFIG_TTYS0_DIV (1) -#else -#define CONFIG_TTYS0_DIV (115200/CONFIG_TTYS0_BAUD) -#endif - -/* Line Control Settings */ -#ifndef CONFIG_TTYS0_LCS -/* Set 8bit, 1 stop bit, no parity */ -#define CONFIG_TTYS0_LCS 0x3 -#endif - -#define UART_LCS CONFIG_TTYS0_LCS - -/* Data */ -#define UART_RBR 0x00 -#define UART_TBR 0x00 - -/* Control */ -#define UART_IER 0x01 -#define UART_IIR 0x02 -#define UART_FCR 0x02 -#define UART_LCR 0x03 -#define UART_MCR 0x04 -#define UART_DLL 0x00 -#define UART_DLM 0x01 - -/* Status */ -#define UART_LSR 0x05 -#define UART_MSR 0x06 -#define UART_SCR 0x07 - -int uart_can_tx_byte(void) -{ - return inb(CONFIG_TTYS0_BASE + UART_LSR) & 0x20; -} - -void uart_wait_to_tx_byte(void) -{ - while(!uart_can_tx_byte()) - ; -} - -void uart_wait_until_sent(void) -{ - while(!(inb(CONFIG_TTYS0_BASE + UART_LSR) & 0x40)) - ; -} - -static void uart_tx_byte(unsigned char data) -{ - uart_wait_to_tx_byte(); - outb(data, CONFIG_TTYS0_BASE + UART_TBR); - /* Make certain the data clears the fifos */ - uart_wait_until_sent(); -} - - -void uart_init(void) -{ - /* disable interrupts */ - outb(0x0, CONFIG_TTYS0_BASE + UART_IER); - /* enable fifo's */ - outb(0x01, CONFIG_TTYS0_BASE + UART_FCR); - /* Set Baud Rate Divisor to 12 ==> 115200 Baud */ - outb(0x80 | UART_LCS, CONFIG_TTYS0_BASE + UART_LCR); - outb(CONFIG_TTYS0_DIV & 0xFF, CONFIG_TTYS0_BASE + UART_DLL); - outb((CONFIG_TTYS0_DIV >> 8) & 0xFF, CONFIG_TTYS0_BASE + UART_DLM); - outb(UART_LCS, CONFIG_TTYS0_BASE + UART_LCR); -} - - -void __console_tx_char(unsigned char byte) -{ - uart_tx_byte(byte); - -} - -void __console_tx_string(char *str) -{ - unsigned char ch; - while((ch = *str++) != '\0') { - __console_tx_char(ch); - } -} - - -void print_debug_char(unsigned char byte) { __console_tx_char(byte); } -void print_debug(char *str) { __console_tx_string(str); } - -void main(void) -{ - static const char msg[] = "hello world\r\n"; - uart_init(); -#if 0 - print_debug(msg); -#endif -#if 1 - print_debug("hello world\r\n"); - print_debug("how are you today\r\n"); -#endif - while(1) { - ; - } -} |