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-rw-r--r--sys/arch/sparc64/dev/pcf8591_envctrl.c199
-rw-r--r--sys/arch/sparc64/dev/pcfiic_ebus.c38
2 files changed, 232 insertions, 5 deletions
diff --git a/sys/arch/sparc64/dev/pcf8591_envctrl.c b/sys/arch/sparc64/dev/pcf8591_envctrl.c
new file mode 100644
index 00000000000..016b254af71
--- /dev/null
+++ b/sys/arch/sparc64/dev/pcf8591_envctrl.c
@@ -0,0 +1,199 @@
+/* $OpenBSD: pcf8591_envctrl.c,v 1.1 2007/10/20 18:54:42 kettenis Exp $ */
+
+/*
+ * Copyright (c) 2006 Damien Miller <djm@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/sensors.h>
+
+#include <dev/ofw/openfirm.h>
+#include <dev/i2c/i2cvar.h>
+
+#define PCF8591_CHANNELS 4
+
+#define PCF8591_CTRL_CH0 0x00
+#define PCF8591_CTRL_CH1 0x01
+#define PCF8591_CTRL_CH2 0x02
+#define PCF8591_CTRL_CH3 0x03
+#define PCF8591_CTRL_AUTOINC 0x04
+#define PCF8591_CTRL_OSCILLATOR 0x40
+
+struct ecadc_channel {
+ u_int chan_num;
+ struct ksensor chan_sensor;
+ int64_t chan_factor;
+};
+
+struct ecadc_softc {
+ struct device sc_dev;
+ i2c_tag_t sc_tag;
+ i2c_addr_t sc_addr;
+ u_char sc_xlate[256];
+ u_int sc_nchan;
+ struct ecadc_channel sc_channels[PCF8591_CHANNELS];
+ struct ksensordev sc_sensordev;
+};
+
+int ecadc_match(struct device *, void *, void *);
+void ecadc_attach(struct device *, struct device *, void *);
+void ecadc_refresh(void *);
+
+struct cfattach ecadc_ca = {
+ sizeof(struct ecadc_softc), ecadc_match, ecadc_attach
+};
+
+struct cfdriver ecadc_cd = {
+ NULL, "ecadc", DV_DULL
+};
+
+int
+ecadc_match(struct device *parent, void *match, void *aux)
+{
+ struct i2c_attach_args *ia = aux;
+
+ if (strcmp(ia->ia_name, "ecadc") != 0)
+ return (0);
+
+ return (1);
+}
+
+void
+ecadc_attach(struct device *parent, struct device *self, void *aux)
+{
+ struct ecadc_softc *sc = (struct ecadc_softc *)self;
+ u_char term[256];
+ u_char *cp, *desc;
+ int64_t num, den;
+ u_int8_t junk[PCF8591_CHANNELS + 1];
+ struct i2c_attach_args *ia = aux;
+ struct ksensor *sensor;
+ int tlen, xlen, addr, chan, node = *(int *)ia->ia_cookie;
+ u_int i;
+
+ if ((tlen = OF_getprop(node, "thermisters", term,
+ sizeof(term))) < 0) {
+ printf(": couldn't find \"thermisters\" property\n");
+ return;
+ }
+
+ if ((xlen = OF_getprop(node, "cpu-temp-factors", &sc->sc_xlate[2],
+ sizeof(sc->sc_xlate) - 2)) < 0) {
+ printf(": couldn't find \"cpu-temp-factors\" property\n");
+ return;
+ }
+ sc->sc_xlate[0] = sc->sc_xlate[1] = sc->sc_xlate[2];
+
+ cp = term;
+ while (cp < term + tlen) {
+ addr = cp[0] << 24 | cp[1] << 16 | cp[2] << 8 | cp[3]; cp += 4;
+ chan = cp[0] << 24 | cp[1] << 16 | cp[2] << 8 | cp[3]; cp += 4;
+ cp += 4; /* Min */
+ cp += 4; /* Warning threshold */
+ cp += 4; /* Shutdown threshold */
+ num = cp[0] << 24 | cp[1] << 16 | cp[2] << 8 | cp[3]; cp += 4;
+ den = cp[0] << 24 | cp[1] << 16 | cp[2] << 8 | cp[3]; cp += 4;
+ desc = cp;
+ while (*cp++);
+
+ if (addr != (ia->ia_addr << 1))
+ continue;
+
+ sensor = &sc->sc_channels[sc->sc_nchan].chan_sensor;
+ sensor->type = SENSOR_TEMP;
+ strlcpy(sensor->desc, desc, sizeof(sensor->desc));
+
+ sc->sc_channels[sc->sc_nchan].chan_num = chan;
+ if (num == 0 || den == 0)
+ sc->sc_channels[sc->sc_nchan].chan_factor = 0;
+ else
+ sc->sc_channels[sc->sc_nchan].chan_factor =
+ (1000000 * num) / den;
+ sc->sc_nchan++;
+ }
+
+ sc->sc_tag = ia->ia_tag;
+ sc->sc_addr = ia->ia_addr;
+
+ iic_acquire_bus(sc->sc_tag, 0);
+
+ /* Try a read now, so we can fail if it doesn't work */
+ if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, sc->sc_addr,
+ NULL, 0, junk, sc->sc_nchan + 1, 0)) {
+ printf(": read failed\n");
+ iic_release_bus(sc->sc_tag, 0);
+ return;
+ }
+
+ iic_release_bus(sc->sc_tag, 0);
+
+ /* Initialize sensor data. */
+ strlcpy(sc->sc_sensordev.xname, sc->sc_dev.dv_xname,
+ sizeof(sc->sc_sensordev.xname));
+
+ for (i = 0; i < sc->sc_nchan; i++)
+ if (!(sc->sc_channels[i].chan_sensor.flags & SENSOR_FINVALID))
+ sensor_attach(&sc->sc_sensordev,
+ &sc->sc_channels[i].chan_sensor);
+
+ if (sensor_task_register(sc, ecadc_refresh, 5) == NULL) {
+ printf(": unable to register update task\n");
+ return;
+ }
+
+ sensordev_install(&sc->sc_sensordev);
+
+ printf("\n");
+}
+
+void
+ecadc_refresh(void *arg)
+{
+ struct ecadc_softc *sc = arg;
+ u_int i;
+ u_int8_t data[PCF8591_CHANNELS + 1];
+ u_int8_t ctrl = PCF8591_CTRL_CH0 | PCF8591_CTRL_AUTOINC |
+ PCF8591_CTRL_OSCILLATOR;
+
+ iic_acquire_bus(sc->sc_tag, 0);
+ if (iic_exec(sc->sc_tag, I2C_OP_WRITE_WITH_STOP, sc->sc_addr,
+ &ctrl, 1, NULL, 0, 0)) {
+ iic_release_bus(sc->sc_tag, 0);
+ return;
+ }
+ /* NB: first byte out is stale, so read num_channels + 1 */
+ if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, sc->sc_addr,
+ NULL, 0, data, PCF8591_CHANNELS + 1, 0)) {
+ iic_release_bus(sc->sc_tag, 0);
+ return;
+ }
+ iic_release_bus(sc->sc_tag, 0);
+
+ /* We only support temperature channels. */
+ for (i = 0; i < sc->sc_nchan; i++) {
+ struct ecadc_channel *chp = &sc->sc_channels[i];
+
+ if ((chp->chan_sensor.flags & SENSOR_FINVALID) != 0)
+ continue;
+ if (chp->chan_factor == 0)
+ chp->chan_sensor.value = 273150000 + 1000000 *
+ sc->sc_xlate[data[1 + chp->chan_num]];
+ else
+ chp->chan_sensor.value = 273150000 +
+ chp->chan_factor * data[1 + chp->chan_num];
+ }
+}
diff --git a/sys/arch/sparc64/dev/pcfiic_ebus.c b/sys/arch/sparc64/dev/pcfiic_ebus.c
index ddec757d3db..1a386fc1e12 100644
--- a/sys/arch/sparc64/dev/pcfiic_ebus.c
+++ b/sys/arch/sparc64/dev/pcfiic_ebus.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: pcfiic_ebus.c,v 1.7 2007/05/21 03:11:11 jsg Exp $ */
+/* $OpenBSD: pcfiic_ebus.c,v 1.8 2007/10/20 18:54:42 kettenis Exp $ */
/*
* Copyright (c) 2006 David Gwynne <dlg@openbsd.org>
@@ -54,20 +54,25 @@ struct cfattach pcfiic_ebus_ca = {
sizeof(struct pcfiic_ebus_softc), pcfiic_ebus_match, pcfiic_ebus_attach
};
+void envctrltwo_scan(struct device *, struct i2cbus_attach_args *, void *);
+
int
pcfiic_ebus_match(struct device *parent, void *match, void *aux)
{
struct ebus_attach_args *ea = aux;
char compat[32];
+ if (strcmp(ea->ea_name, "SUNW,envctrltwo") == 0)
+ return (1);
+
if (strcmp(ea->ea_name, "i2c") != 0)
return (0);
if (OF_getprop(ea->ea_node, "compatible", compat, sizeof(compat)) == -1)
return (0);
- if (strcmp(compat, "i2cpcf,8584") ||
- strcmp(compat, "SUNW,bbc-i2c"))
+ if (strcmp(compat, "i2cpcf,8584") == 0 ||
+ strcmp(compat, "SUNW,bbc-i2c") == 0)
return (1);
return (0);
@@ -157,6 +162,29 @@ fail:
if (esc->esc_ih == NULL)
sc->sc_poll = 1;
- pcfiic_attach(sc, (i2c_addr_t)(addr >> 1), clock, swapregs,
- ofwiic_scan, &ea->ea_node);
+ if (strcmp(ea->ea_name, "SUNW,envctrltwo") == 0)
+ pcfiic_attach(sc, 0x55, PCF_CLOCK_12 | PCF_FREQ_45, 0,
+ envctrltwo_scan, &ea->ea_node);
+ else
+ pcfiic_attach(sc, (i2c_addr_t)(addr >> 1), clock, swapregs,
+ ofwiic_scan, &ea->ea_node);
+}
+
+void
+envctrltwo_scan(struct device *self, struct i2cbus_attach_args *iba, void *aux)
+{
+ extern int iic_print(void *, const char *);
+ struct i2c_attach_args ia;
+
+ memset(&ia, 0, sizeof(ia));
+ ia.ia_tag = iba->iba_tag;
+ ia.ia_cookie = aux;
+
+ ia.ia_addr = 0x4a;
+ ia.ia_name = "ecadc";
+ config_found(self, &ia, iic_print);
+
+ ia.ia_addr = 0x4f;
+ ia.ia_name = "ecadc";
+ config_found(self, &ia, iic_print);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-20 08:59:58 +0000