system/freebsd-src
system/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src synced 2024-10-06 08:31:17 +00:00
Code Issues Packages Projects Releases Wiki Activity

MFi386: revision 245848

Browse source 
Always update the hw.uart.console hint.
This commit is contained in:
Yoshihiro Takahashi 2013-06-01 12:27:48 +00:00
parent 0ead4cbf9f
commit 9a068b2e34
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=251223
1 changed files with 7 additions and 18 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

25
sys/boot/pc98/libpc98/comconsole.c
View file

@ -50,7 +50,6 @@ static int comc_init(int arg);
static void comc_putchar(int c);
static int comc_getchar(void);
static int comc_getspeed(void);
static void set_hw_console_hint(void);
static int comc_ischar(void);
static int comc_parseint(const char *string);
static uint32_t comc_parse_pcidev(const char *string);
@ -202,27 +201,14 @@ comc_port_set(struct env_var *ev, int flags, const void *value)
}
if ((comconsole.c_flags & (C_ACTIVEIN | C_ACTIVEOUT)) != 0 &&
comc_port != port) {
comc_port != port)
comc_setup(comc_curspeed, port);
set_hw_console_hint();
}
env_setenv(ev->ev_name, flags | EV_NOHOOK, value, NULL, NULL);
return (CMD_OK);
}
static void
set_hw_console_hint(void)
{
char intbuf[64];
unsetenv("hw.uart.console");
sprintf(intbuf, "io:%d,br:%d", comc_port, comc_curspeed);
env_setenv("hw.uart.console", EV_VOLATILE, intbuf,
env_noset, env_nounset);
}
/*
* Input: bus:dev:func[:bar]. If bar is not specified, it is 0x10.
* Output: bar[24:16] bus[15:8] dev[7:3] func[2:0]
@ -288,7 +274,6 @@ comc_pcidev_handle(uint32_t locator)
comc_port_set, env_nounset);
comc_setup(comc_curspeed, port);
set_hw_console_hint();
comc_locator = locator;
return (CMD_OK);
@ -318,8 +303,10 @@ static void
comc_setup(int speed, int port)
{
static int TRY_COUNT = 1000000;
char intbuf[64];
int tries;
unsetenv("hw.uart.console");
comc_curspeed = speed;
comc_port = port;
@ -334,9 +321,11 @@ comc_setup(int speed, int port)
inb(comc_port + com_data);
while (inb(comc_port + com_lsr) & LSR_RXRDY && ++tries < TRY_COUNT);
if (tries < TRY_COUNT)
if (tries < TRY_COUNT) {
comconsole.c_flags |= (C_PRESENTIN | C_PRESENTOUT);
else
sprintf(intbuf, "io:%d,br:%d", comc_port, comc_curspeed);
env_setenv("hw.uart.console", EV_VOLATILE, intbuf, NULL, NULL);
} else
comconsole.c_flags &= ~(C_PRESENTIN | C_PRESENTOUT);
}