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util/sconfig: Add support for discontiguous FW_CONFIG fields

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Sooner or later, some board was going to need extra FW_CONFIG bits for
a field that was already in production, so this patch adds support for
adding extra (unused) bits to a field.

The extra are appended via a syntax like:
`field FIELD_NAME START0 END0 | START1 END1 | START2 END2 ...`
and the suffixed bits are all treated as if they are contiguous when
defining option values.

BUG=b:185190978
TEST=Modified volteer fw_config to the following:
field AUDIO 8 10 | 29 29 | 31 31
        option NONE 0
	option MAX98357_ALC5682I_I2S 1
        option MAX98373_ALC5682I_I2S 2
	option MAX98373_ALC5682_SNDW 3
        option MAX98373_ALC5682I_I2S_UP4 4
        option MAX98360_ALC5682I_I2S 5
        option RT1011_ALC5682I_I2S 6
        option AUDIO_FOO 7
	option AUDIO_BAR 8
        option AUDIO_QUUX 9
        option AUDIO_BLAH1 10
        option AUDIO_BLAH2 15
        option AUDIO_BLAH3 16
        option AUDIO_BLAH4 31
end

which yielded (in static_fw_config.h):
 FW_CONFIG_FIELD_AUDIO_MASK 0xa0000700
 FW_CONFIG_FIELD_AUDIO_OPTION_NONE_VALUE 0x0
 FW_CONFIG_FIELD_AUDIO_OPTION_MAX98357_ALC5682I_I2S_VALUE 0x100
 FW_CONFIG_FIELD_AUDIO_OPTION_MAX98373_ALC5682I_I2S_VALUE 0x200
 FW_CONFIG_FIELD_AUDIO_OPTION_MAX98373_ALC5682_SNDW_VALUE 0x300
 FW_CONFIG_FIELD_AUDIO_OPTION_MAX98373_ALC5682I_I2S_UP4_VALUE 0x400
 FW_CONFIG_FIELD_AUDIO_OPTION_MAX98360_ALC5682I_I2S_VALUE 0x500
 FW_CONFIG_FIELD_AUDIO_OPTION_RT1011_ALC5682I_I2S_VALUE 0x600
 FW_CONFIG_FIELD_AUDIO_OPTION_AUDIO_FOO_VALUE 0x700
 FW_CONFIG_FIELD_AUDIO_OPTION_AUDIO_BAR_VALUE 0x20000000
 FW_CONFIG_FIELD_AUDIO_OPTION_AUDIO_QUUX_VALUE 0x20000100
 FW_CONFIG_FIELD_AUDIO_OPTION_AUDIO_BLAH1_VALUE 0x20000200
 FW_CONFIG_FIELD_AUDIO_OPTION_AUDIO_BLAH2_VALUE 0x20000700
 FW_CONFIG_FIELD_AUDIO_OPTION_AUDIO_BLAH3_VALUE 0x80000000
 FW_CONFIG_FIELD_AUDIO_OPTION_AUDIO_BLAH4_VALUE 0xa0000700

Change-Id: I5ed76706347ee9642198efc77139abdc3af1b8a6
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52747
Reviewed-by: Duncan Laurie <duncan@iceblink.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Tim Wawrzynczak
2021-04-28 14:03:07 -06:00
committed by Patrick Georgi
parent 54c4ecb9f2
commit 13e240c602
8 changed files with 537 additions and 361 deletions
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1
util/sconfig/sconfig.l
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@@ -50,6 +50,7 @@ subsystemid {return(SUBSYSTEMID);}
end {return(END);}
smbios_slot_desc {return(SLOT_DESC);}
= {return(EQUALS);}
\| {return(PIPE);}
0x[0-9a-fA-F.]+ {yylval.string = malloc(yyleng+1); strncpy(yylval.string, yytext, yyleng); yylval.string[yyleng]='\0'; return(NUMBER);}
[0-9.]+ {yylval.string = malloc(yyleng+1); strncpy(yylval.string, yytext, yyleng); yylval.string[yyleng]='\0'; return(NUMBER);}
[0-9a-fA-F.]+ {yylval.string = malloc(yyleng+1); strncpy(yylval.string, yytext, yyleng); yylval.string[yyleng]='\0'; return(NUMBER);}