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* factor out serial hardware init

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* add reverse color support for serial
* add cursor enable/disable support for serial
* fix tinycurses compilation if serial is disabled
* add functions to query whether serial or vga console is enabled in tinycurses
* initialize uninitialized COLOR_PAIRS variable
* implement has_colors(), wredrawln() functions in curses

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3604 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Stefan Reinauer
2008-09-26 18:36:26 +00:00
committed by Stefan Reinauer
parent 96bcc53071
commit e75c3d85a3
5 changed files with 141 additions and 34 deletions
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72
payloads/libpayload/drivers/serial.c
View File

@@ -32,32 +32,36 @@
#include <libpayload.h>
#define IOBASE lib_sysinfo.ser_ioport
#define DIVISOR(x) (115200 / x)
#ifdef CONFIG_SERIAL_SET_SPEED
#define DIVISOR (115200 / CONFIG_SERIAL_BAUD_RATE)
#endif
void serial_hardware_init(int port, int speed, int word_bits, int parity, int stop_bits)
{
unsigned char reg;
/* We will assume 8n1 for now. Does anyone use anything else these days? */
/* Disable interrupts. */
outb(0, port + 0x01);
/* Assert RTS and DTR. */
outb(3, port + 0x04);
/* Set the divisor latch. */
reg = inb(port + 0x03);
outb(reg | 0x80, port + 0x03);
/* Write the divisor. */
outb(DIVISOR(speed) & 0xFF, port);
outb(DIVISOR(speed) >> 8 & 0xFF, port + 1);
/* Restore the previous value of the divisor. */
outb(reg &= ~0x80, port + 0x03);
}
void serial_init(void)
{
#ifdef CONFIG_SERIAL_SET_SPEED
unsigned char reg;
/* Disable interrupts. */
outb(0, IOBASE + 0x01);
/* Assert RTS and DTR. */
outb(3, IOBASE + 0x04);
/* Set the divisor latch. */
reg = inb(IOBASE + 0x03);
outb(reg | 0x80, IOBASE + 0x03);
/* Write the divisor. */
outb(DIVISOR & 0xFF, IOBASE);
outb(DIVISOR >> 8 & 0xFF, IOBASE + 1);
/* Restore the previous value of the divisor. */
outb(reg &= ~0x80, IOBASE + 0x03);
serial_hardware_init(IOBASE, CONFIG_SERIAL_BAUD_RATE, 8, 0, 1);
#endif
}
@@ -81,9 +85,17 @@ int serial_getchar(void)
/* These are thinly veiled vt100 functions used by curses */
#define VT100_CLEAR "\e[H\e[J"
/* These defines will fail if you use bold and reverse at the same time.
* Switching off one of them will switch off both. tinycurses knows about
* this and does the right thing.
*/
#define VT100_SBOLD "\e[1m"
#define VT100_EBOLD "\e[m"
#define VT100_SREVERSE "\e[7m"
#define VT100_EREVERSE "\e[m"
#define VT100_CURSOR_ADDR "\e[%d;%dH"
#define VT100_CURSOR_ON "\e[?25l"
#define VT100_CURSOR_OFF "\e[?25h"
/* The following smacs/rmacs are actually for xterm; a real vt100 has
enacs=\E(B\E)0, smacs=^N, rmacs=^O. */
#define VT100_SMACS "\e(0"
@@ -112,6 +124,16 @@ void serial_end_bold(void)
serial_putcmd(VT100_EBOLD);
}
void serial_start_reverse(void)
{
serial_putcmd(VT100_SREVERSE);
}
void serial_end_reverse(void)
{
serial_putcmd(VT100_EREVERSE);
}
void serial_start_altcharset(void)
{
serial_putcmd(VT100_SMACS);
@@ -141,3 +163,11 @@ void serial_set_cursor(int y, int x)
snprintf(buffer, sizeof(buffer), VT100_CURSOR_ADDR, y + 1, x + 1);
serial_putcmd(buffer);
}
void serial_cursor_enable(int state)
{
if (state)
serial_putcmd(VT100_CURSOR_ON);
else
serial_putcmd(VT100_CURSOR_OFF);
}