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Differential D23718 Diff 68417 sys/dev/iicbus/ads111x.c

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sys/dev/iicbus/ads111x.c

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if (c->configured) if (c->configured)
return; return;
ctx = device_get_sysctl_ctx(sc->dev); ctx = device_get_sysctl_ctx(sc->dev);
devtree = device_get_sysctl_tree(sc->dev); devtree = device_get_sysctl_tree(sc->dev);
snprintf(chanstr, sizeof(chanstr), "%d", chan); snprintf(chanstr, sizeof(chanstr), "%d", chan);
chantree = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(devtree), OID_AUTO, chantree = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(devtree), OID_AUTO,
chanstr, CTLFLAG_RD, NULL, "channel data"); chanstr, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "channel data");
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(chantree), OID_AUTO, SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(chantree), OID_AUTO,
"gain_index", CTLTYPE_INT | CTLFLAG_RWTUN, sc, chan, "gain_index", CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_NEEDGIANT,
ads111x_sysctl_gainidx, "I", "programmable gain amp setting, 0-7"); sc, chan, ads111x_sysctl_gainidx, "I",
"programmable gain amp setting, 0-7");
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(chantree), OID_AUTO, SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(chantree), OID_AUTO,
"rate_index", CTLTYPE_INT | CTLFLAG_RWTUN, sc, chan, "rate_index", CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_NEEDGIANT,
ads111x_sysctl_rateidx, "I", "sample rate setting, 0-7"); sc, chan, ads111x_sysctl_rateidx, "I", "sample rate setting, 0-7");
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(chantree), OID_AUTO, SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(chantree), OID_AUTO,
"voltage", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_SKIP, sc, chan, "voltage",
ads111x_sysctl_voltage, "I", "sampled voltage in microvolts"); CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_SKIP | CTLFLAG_NEEDGIANT, sc,
chan, ads111x_sysctl_voltage, "I", "sampled voltage in microvolts");
c->configured = true; c->configured = true;
} }
static void static void
ads111x_add_channels(struct ads111x_softc *sc) ads111x_add_channels(struct ads111x_softc *sc)
{ {
const char *name; const char *name;
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device_printf(dev, "cannot write chip config register\n"); device_printf(dev, "cannot write chip config register\n");
return (err); return (err);
} }
/* Add the sysctl handler to set the chip configuration register. */ /* Add the sysctl handler to set the chip configuration register. */
ctx = device_get_sysctl_ctx(dev); ctx = device_get_sysctl_ctx(dev);
tree = device_get_sysctl_tree(dev); tree = device_get_sysctl_tree(dev);
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"config", CTLTYPE_INT | CTLFLAG_RWTUN, sc, 0, "config", CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_NEEDGIANT, sc, 0,
ads111x_sysctl_config, "I", "configuration register word"); ads111x_sysctl_config, "I", "configuration register word");
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"lo_thresh", CTLTYPE_INT | CTLFLAG_RWTUN, sc, 0, "lo_thresh", CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_NEEDGIANT, sc, 0,
ads111x_sysctl_lothresh, "I", "comparator low threshold"); ads111x_sysctl_lothresh, "I", "comparator low threshold");
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"hi_thresh", CTLTYPE_INT | CTLFLAG_RWTUN, sc, 0, "hi_thresh", CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_NEEDGIANT, sc, 0,
ads111x_sysctl_hithresh, "I", "comparator high threshold"); ads111x_sysctl_hithresh, "I", "comparator high threshold");
/* Set up channels based on metadata or default config. */ /* Set up channels based on metadata or default config. */
ads111x_add_channels(sc); ads111x_add_channels(sc);
sx_init(&sc->lock, "ads111x"); sx_init(&sc->lock, "ads111x");
return (0); return (0);
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