Date: Thu, 6 Sep 2018 12:45:04 -0700 From: Craig Leres <leres@freebsd.org> To: lev@FreeBSD.org, gljennjohn@gmail.com Cc: freebsd-hackers@freebsd.org, Allan Jude <allanjude@freebsd.org>, Jung-uk Kim <jkim@FreeBSD.org> Subject: Re: Is here way to have 9600+ serial console and see boot0 message? Message-ID: <264c2f26-dda5-129c-5cab-513bb1cb4132@freebsd.org> In-Reply-To: <7dd2224d-f109-c585-5ee9-a1cc2c09d20e@FreeBSD.org> References: <ac3fe50c-d9a0-96ba-28f0-84ffca8e4cd3@FreeBSD.org> <14cd401a-660c-1a3a-8d80-677a42727146@freebsd.org> <0bc33818-641c-07db-194b-66fd1eb30c55@FreeBSD.org> <36485aef-0fdd-bcb1-993e-e334a1cd81ab@FreeBSD.org> <f718fbf2-4433-f9be-7ce2-24a91f78c6cb@FreeBSD.org> <20180906191109.49f9d0ab@ernst.home> <7dd2224d-f109-c585-5ee9-a1cc2c09d20e@FreeBSD.org>
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On 9/6/18 8:17 AM, Lev Serebryakov wrote:
> Nope. If BOOT_BOOT0_COMCONSOLE_SPEED defined, it is used as-is. If it
> is not defined it is derived from BOOT_COMCONSOLE_SPEED. So, defining it
> to "0" should work. And disassembling boot0sio confirms it.
>
> .if !defined(BOOT_BOOT0_COMCONSOLE_SPEED)
> BOOT_COMCONSOLE_SPEED?= 9600
> .if ${BOOT_COMCONSOLE_SPEED} == 9600
> BOOT_BOOT0_COMCONSOLE_SPEED= "7 << 5 + 3"
> .elif ${BOOT_COMCONSOLE_SPEED} == 4800
> BOOT_BOOT0_COMCONSOLE_SPEED= "6 << 5 + 3"
> .elif ${BOOT_COMCONSOLE_SPEED} == 2400
> BOOT_BOOT0_COMCONSOLE_SPEED= "5 << 5 + 3"
> .elif ${BOOT_COMCONSOLE_SPEED} == 1200
> BOOT_BOOT0_COMCONSOLE_SPEED= "4 << 5 + 3"
> .elif ${BOOT_COMCONSOLE_SPEED} == 600
> BOOT_BOOT0_COMCONSOLE_SPEED= "3 << 5 + 3"
> .elif ${BOOT_COMCONSOLE_SPEED} == 300
> BOOT_BOOT0_COMCONSOLE_SPEED= "2 << 5 + 3"
> .elif ${BOOT_COMCONSOLE_SPEED} == 150
> BOOT_BOOT0_COMCONSOLE_SPEED= "1 << 5 + 3"
> .elif ${BOOT_COMCONSOLE_SPEED} == 110
> BOOT_BOOT0_COMCONSOLE_SPEED= "0 << 5 + 3"
> .else
> BOOT_BOOT0_COMCONSOLE_SPEED= "7 << 5 + 3"
> .endif
> .endif
Maybe I don't understand what you're saying but I don't think defining
to "0" is the same as not defining.
Craig
hot 84 % cat c.c
#include <stdio.h>
#include <stdlib.h>
int main(int, char **);
#define FOO
#define BAR 0
#define BLETCH 1
int
main(int argc, char **argv)
{
#ifdef FOO
printf("#ifdef FOO\n");
#endif
#if defined(FOO)
printf("#if defined(FOO)\n");
#endif
#ifdef BAR
printf("#ifdef BAR\n");
#endif
#if defined(BAR)
printf("#if defined(BAR)\n");
#endif
#ifdef BLETCH
printf("#ifdef BLETCH\n");
#endif
#if defined(BLETCH)
printf("#if defined(BLETCH)\n");
#endif
#ifdef FNORD
printf("#ifdef FNORD\n");
#endif
#if defined(FNORD)
printf("#if defined(FNORD)\n");
#endif
exit(0);
}
hot 85 % cc c.c && ./a.out
#ifdef FOO
#if defined(FOO)
#ifdef BAR
#if defined(BAR)
#ifdef BLETCH
#if defined(BLETCH)
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