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imx8: better syntax for iomuxpad() options using ~ for negation

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This commit is contained in:
cinap_lenrek 2022-06-13 19:18:50 +00:00
parent 90428d0561
commit 5388575c14
1 changed files with 13 additions and 13 deletions
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26
sys/src/9/imx8/iomux.c
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@ -998,24 +998,19 @@ static struct padopt padopts[] = {
"VSEL_6", 7<<11, 6<<11,
"VSEL_7", 7<<11, 7<<11,
"LVTTL_OFF", 1<<8, 0<<8,
"LVTTL", 1<<8, 1<<8,
"HYS_OFF", 1<<7, 0<<7,
"HYS", 1<<7, 1<<7,
"PUE", 1<<6, 1<<6,
"PUD", 1<<6, 0<<6,
"ODE", 1<<5, 1<<5,
"ODD", 1<<5, 0<<5,
"SLOW", 3<<3, 0<<3,
"MEDIUM", 3<<3, 1<<3,
"FAST", 3<<3, 2<<3,
"MAX", 3<<3, 3<<3,
/* DSE */
"HI-Z", 7, 0,
"255_OHM", 7, 1,
"105_OHM", 7, 2,
@ -1048,10 +1043,15 @@ Padok:
if(cfg != nil){
struct padopt *o;
char *x;
for(o = padopts; o->s != nil; o++) {
if(strstr(cfg, o->s) != nil){
val |= o->v;
x = strstr(cfg, o->s);
if(x != nil){
if(x > cfg && x[-1] == '~')
val &= ~o->v;
else
val |= o->v;
mask |= o->m;
}
}
@ -1063,12 +1063,12 @@ Padok:
val = 0;
mask = 0;
if(strstr(cfg, "SION") != nil){
val |= SION;
mask |= SION;
}
if(strstr(cfg, "SIOFF") != nil){
val &= ~SION;
x = strstr(cfg, "SION");
if(x != nil){
if(x > cfg && x[-1] == '~')
val &= ~SION;
else
val |= SION;
mask |= SION;
}
}