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2008-07-11 Pavel Roskin <proski@gnu.org>

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* term/i386/pc/serial.c (GRUB_SERIAL_PORT_NUM): New constant.
	[!GRUB_MACHINE_PCBIOS] (serial_hw_io_addr): Add COM2 and COM3.
	(serial_hw_get_port): Check validity of the port number.
	(grub_cmd_serial): Check return value of serial_hw_get_port().
This commit is contained in:
proski 2008-07-11 16:40:45 +00:00
parent 62a02d00d6
commit 947414b4b9
2 changed files with 20 additions and 8 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2008-07-11 Pavel Roskin <proski@gnu.org>
* term/i386/pc/serial.c (GRUB_SERIAL_PORT_NUM): New constant.
[!GRUB_MACHINE_PCBIOS] (serial_hw_io_addr): Add COM2 and COM3.
(serial_hw_get_port): Check validity of the port number.
(grub_cmd_serial): Check return value of serial_hw_get_port().
2008-07-07 Pavel Roskin <proski@gnu.org>
* boot/i386/pc/diskboot.S (notification_string): Replace

19
term/i386/pc/serial.c
View file

@ -67,15 +67,20 @@ static struct serial_port serial_settings;
#ifdef GRUB_MACHINE_PCBIOS
/* The BIOS data area. */
static const unsigned short *serial_hw_io_addr = (const unsigned short *) 0x0400;
#define GRUB_SERIAL_PORT_NUM 4
#else
static const unsigned short serial_hw_io_addr[] = { 0x3f8, 0x2f8 };
static const unsigned short serial_hw_io_addr[] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
#define GRUB_SERIAL_PORT_NUM (sizeof(serial_hw_io_addr)/(serial_hw_io_addr[0]))
#endif
/* Return the port number for the UNITth serial device. */
static inline unsigned short
serial_hw_get_port (const unsigned short unit)
serial_hw_get_port (const unsigned int unit)
{
if (unit < GRUB_SERIAL_PORT_NUM)
return serial_hw_io_addr[unit];
else
return 0;
}
/* Fetch a key. */
@ -490,14 +495,14 @@ grub_cmd_serial (struct grub_arg_list *state,
{
struct serial_port backup_settings = serial_settings;
grub_err_t hwiniterr;
int arg;
if (state[0].set)
{
arg = grub_strtoul (state[0].arg, 0, 0);
if (arg >= 0 && arg < 4)
serial_settings.port = serial_hw_get_port ((int) arg);
else
unsigned int unit;
unit = grub_strtoul (state[0].arg, 0, 0);
serial_settings.port = serial_hw_get_port (unit);
if (!serial_settings.port)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "bad unit number.");
}