files.i2c

1 files changed, 363 insertions, 0 deletions

diff --git a/sys/dev/i2c/sch5017.c b/sys/dev/i2c/sch5017.c
new file mode 100644
index 00000000000..9e386e74a43
--- /dev/null
+++ b/sys/dev/i2c/sch5017.c
@@ -0,0 +1,363 @@
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+From: Roman Hunt <roman.hunt@comcast.net>
+To: deraadt@openbsd.org, roman.hunt@comcast.net
+Subject: Here is sch5017.c the driver for the SCH5017 I2C chip
+
+Sorry for the delay in sending this. I will send the patches to GENERIC
+and files.i2c seperately.
+
+/usr/src/sys/dev/i2c/sch5017.c:
+/*
+ * Copyright (c) 2006 Roman Hunt
+ * 
+ * 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/i2c/i2cvar.h>
+
+/*
+ * SCH5017 Registers
+ */
+#define SCH5017_VCCP		0x21
+#define SCH5017_VCC		0x22
+#define SCH5017_5V		0x23
+#define SCH5017_12V		0x24
+#define SCH5017_RTEMP1		0x25
+#define SCH5017_ITEMP		0x26
+#define SCH5017_RTEMP2		0x27
+#define SCH5017_FAN1_LSB	0x28
+#define SCH5017_FAN1_MSB	0x29
+#define SCH5017_FAN2_LSB	0x2A
+#define SCH5017_FAN2_MSB	0x2B
+#define SCH5017_FAN3_LSB	0x2C
+#define SCH5017_FAN3_MSB	0x2D
+#define SCH5017_FAN4_LSB	0x2E
+#define SCH5017_FAN4_MSB	0x2F
+#define SCH5017_VERSION		0x3F
+
+/*
+ * Sensors
+ */
+#define SCHENV_VCCP		0
+#define SCHENV_VCC		1 
+#define SCHENV_5V		2
+#define SCHENV_12V		3
+#define SCHENV_RTEMP1		4
+#define SCHENV_ITEMP		5
+#define SCHENV_RTEMP2		6
+#define SCHENV_FAN1		7
+#define SCHENV_FAN2		8
+#define SCHENV_FAN3		9
+#define SCHENV_FAN4		10
+#define SCHENV_SENSOR_COUNT	11
+
+struct schenv_softc {
+	struct device sc_dev;
+	i2c_tag_t sc_tag;
+	i2c_addr_t sc_addr;
+
+	struct sensor sc_sensor[SCHENV_SENSOR_COUNT];
+};
+
+int	schenv_match(struct device *, void *, void *);
+void	schenv_attach(struct device *, struct device *, void *);
+
+void	schenv_refresh(void *);
+
+struct cfattach schenv_ca = {
+	sizeof(struct schenv_softc), schenv_match, schenv_attach
+};
+
+struct cfdriver schenv_cd = {
+	NULL, "schenv", DV_DULL
+};
+
+int
+schenv_match(struct device *parent, void *match, void *aux)
+{
+	struct i2c_attach_args *ia = aux;
+
+	if (strcmp(ia->ia_name, "sch5017") == 0)
+	    return (1);
+	else
+	    return (0);
+}
+
+void
+schenv_attach(struct device *parent, struct device *self, void *aux)
+{
+	struct schenv_softc *sc = (struct schenv_softc *)self;
+	struct i2c_attach_args *ia = aux;
+	u_int8_t cmd, data;
+	int i;
+
+	sc->sc_tag = ia->ia_tag;
+	sc->sc_addr = ia->ia_addr;
+
+	iic_acquire_bus(sc->sc_tag, 0);
+
+	cmd = SCH5017_VERSION;
+	if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
+	    sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
+		iic_release_bus(sc->sc_tag, 0);
+		printf(": cannot read revision register\n");
+		return;
+	}
+	printf(": %s rev %x", ia->ia_name, (data >> 4));
+
+	iic_release_bus(sc->sc_tag, 0);
+
+	/*
+	 * Initialize sensors
+	 */
+	for (i = 0; i < SCHENV_SENSOR_COUNT; i++)
+	    strlcpy(sc->sc_sensor[i].device, sc->sc_dev.dv_xname,
+		sizeof(sc->sc_sensor[i].device));
+
+	sc->sc_sensor[SCHENV_VCCP].type = SENSOR_VOLTS_DC;
+	strlcpy(sc->sc_sensor[SCHENV_VCCP].desc, "Vccp",
+	    sizeof(sc->sc_sensor[SCHENV_VCCP].desc));
+
+	sc->sc_sensor[SCHENV_VCC].type = SENSOR_VOLTS_DC;
+	strlcpy(sc->sc_sensor[SCHENV_VCC].desc, "Vcc",
+	    sizeof(sc->sc_sensor[SCHENV_VCC].desc));
+
+	sc->sc_sensor[SCHENV_5V].type = SENSOR_VOLTS_DC;
+	strlcpy(sc->sc_sensor[SCHENV_5V].desc, "+5Vin",
+	    sizeof(sc->sc_sensor[SCHENV_5V].desc));
+
+	sc->sc_sensor[SCHENV_12V].type = SENSOR_VOLTS_DC;
+	strlcpy(sc->sc_sensor[SCHENV_12V].desc, "+12Vin",
+	    sizeof(sc->sc_sensor[SCHENV_12V].desc));
+
+	sc->sc_sensor[SCHENV_RTEMP1].type = SENSOR_TEMP;
+	strlcpy(sc->sc_sensor[SCHENV_RTEMP1].desc, "Ext. Temp. 1",
+	    sizeof(sc->sc_sensor[SCHENV_RTEMP1].desc));
+
+	sc->sc_sensor[SCHENV_ITEMP].type = SENSOR_TEMP;
+	strlcpy(sc->sc_sensor[SCHENV_ITEMP].desc, "Int. Temp.",
+	    sizeof(sc->sc_sensor[SCHENV_ITEMP].desc));
+
+	sc->sc_sensor[SCHENV_RTEMP2].type = SENSOR_TEMP;
+	strlcpy(sc->sc_sensor[SCHENV_RTEMP2].desc, "Ext. Temp. 2",
+	    sizeof(sc->sc_sensor[SCHENV_RTEMP1].desc));
+
+	sc->sc_sensor[SCHENV_FAN1].type = SENSOR_FANRPM;
+	strlcpy(sc->sc_sensor[SCHENV_FAN1].desc, "FAN1",
+	    sizeof(sc->sc_sensor[SCHENV_FAN1].desc));
+
+	sc->sc_sensor[SCHENV_FAN2].type = SENSOR_FANRPM;
+	strlcpy(sc->sc_sensor[SCHENV_FAN2].desc, "FAN2",
+	    sizeof(sc->sc_sensor[SCHENV_FAN2].desc));
+
+	sc->sc_sensor[SCHENV_FAN3].type = SENSOR_FANRPM;
+	strlcpy(sc->sc_sensor[SCHENV_FAN3].desc, "FAN3",
+	    sizeof(sc->sc_sensor[SCHENV_FAN3].desc));
+
+	sc->sc_sensor[SCHENV_FAN4].type = SENSOR_FANRPM;
+	strlcpy(sc->sc_sensor[SCHENV_FAN4].desc, "FAN4",
+	    sizeof(sc->sc_sensor[SCHENV_FAN4].desc));
+
+	if (sensor_task_register(sc, schenv_refresh, 5)) {
+		printf(", unable to register update task\n");
+		return;
+	}
+
+	for (i = 0; i < SCHENV_SENSOR_COUNT; i++)
+		sensor_add(&sc->sc_sensor[i]);
+
+	printf("\n");
+}
+
+void
+schenv_refresh(void *arg)
+{
+	struct schenv_softc *sc = arg;
+	u_int8_t cmd, data, data2;
+	u_int16_t fanword;
+	int sensor;
+	iic_acquire_bus(sc->sc_tag, 0);
+
+	for (sensor = 0; sensor < SCHENV_SENSOR_COUNT; sensor++) {
+		cmd = SCH5017_VCCP + sensor;
+		if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
+		    sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
+			sc->sc_sensor[sensor].flags |= SENSOR_FINVALID;
+			continue;
+		}
+
+		sc->sc_sensor[sensor].flags &= ~SENSOR_FINVALID;
+		switch (sensor) {
+		case SCHENV_VCCP:
+			sc->sc_sensor[sensor].value = 3000000 / 256 * data;
+			break;
+		case SCHENV_VCC:
+			sc->sc_sensor[sensor].value = 4380000 / 256 * data;
+			break;
+		case SCHENV_5V:
+			sc->sc_sensor[sensor].value = 6640000 / 256 * data;
+			break;
+		case SCHENV_12V:
+			sc->sc_sensor[sensor].value = 16000000 / 256 * data;
+			break;
+		case SCHENV_RTEMP1:
+		/* FALLTHROUGH */
+		case SCHENV_ITEMP:
+		/* FALLTHROUGH */
+		case SCHENV_RTEMP2:
+			if (data == 0x80) {
+			    sc->sc_sensor[sensor].flags |= SENSOR_FINVALID;
+			    break;
+			}
+
+			sc->sc_sensor[sensor].value =
+			    (int8_t)data * 1000000 + 273150000;
+
+			break;
+		case SCHENV_FAN1:
+			cmd = SCH5017_FAN1_LSB;
+			if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, 
+			    sc->sc_addr, &cmd, sizeof cmd, &data,
+			    sizeof data, 0)) {
+				sc->sc_sensor[sensor].flags |=
+				    SENSOR_FINVALID;
+				break;
+			}
+
+			cmd = SCH5017_FAN1_MSB;
+			if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, 
+			    sc->sc_addr, &cmd, sizeof cmd, &data2, 
+			    sizeof data2, 0)) {
+				sc->sc_sensor[sensor].flags |=
+				    SENSOR_FINVALID;
+				break;
+			}
+			fanword = data2;
+			fanword = fanword << 8;
+			fanword |= data;
+			if (fanword == 0xFFFF) {
+	    		    sc->sc_sensor[sensor].flags |= SENSOR_FINVALID;
+			    break;
+			}
+			sc->sc_sensor[sensor].value = fanword;
+			break;
+		case SCHENV_FAN2:
+			cmd = SCH5017_FAN2_LSB;
+			if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, 
+			    sc->sc_addr, &cmd, sizeof cmd, &data,
+			    sizeof data, 0)) {
+				sc->sc_sensor[sensor].flags |=
+				    SENSOR_FINVALID;
+				break;
+			}
+
+			cmd = SCH5017_FAN2_MSB;
+			if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, 
+			    sc->sc_addr, &cmd, sizeof cmd, &data2, 
+			    sizeof data2, 0)) {
+				sc->sc_sensor[sensor].flags |=
+				    SENSOR_FINVALID;
+				break;
+			}
+			fanword = data2;
+			fanword = fanword << 8;
+			fanword |= data;
+			if (fanword == 0xFFFF) {
+	    		    sc->sc_sensor[sensor].flags |= SENSOR_FINVALID;
+			    break;
+			}
+			sc->sc_sensor[sensor].value = fanword;
+			break;
+		case SCHENV_FAN3:
+			cmd = SCH5017_FAN3_LSB;
+			if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, 
+			    sc->sc_addr, &cmd, sizeof cmd, &data,
+			    sizeof data, 0)) {
+				sc->sc_sensor[sensor].flags |=
+				    SENSOR_FINVALID;
+				break;
+			}
+
+			cmd = SCH5017_FAN3_MSB;
+			if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, 
+			    sc->sc_addr, &cmd, sizeof cmd, &data2, 
+			    sizeof data2, 0)) {
+				sc->sc_sensor[sensor].flags |=
+				    SENSOR_FINVALID;
+				break;
+			}
+			fanword = data2;
+			fanword = fanword << 8;
+			fanword |= data;
+			if (fanword == 0xFFFF) {
+	    		    sc->sc_sensor[sensor].flags |= SENSOR_FINVALID;
+			    break;
+			}
+			sc->sc_sensor[sensor].value = fanword;
+			break;
+		case SCHENV_FAN4:
+			cmd = SCH5017_FAN4_LSB;
+			if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, 
+			    sc->sc_addr, &cmd, sizeof cmd, &data,
+			    sizeof data, 0)) {
+				sc->sc_sensor[sensor].flags |=
+				    SENSOR_FINVALID;
+				break;
+			}
+
+			cmd = SCH5017_FAN4_MSB;
+			if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, 
+			    sc->sc_addr, &cmd, sizeof cmd, &data2, 
+			    sizeof data2, 0)) {
+				sc->sc_sensor[sensor].flags |=
+				    SENSOR_FINVALID;
+				break;
+			}
+			fanword = data2;
+			fanword = fanword << 8;
+			fanword |= data;
+			if (fanword == 0xFFFF) {
+	    		    sc->sc_sensor[sensor].flags |= SENSOR_FINVALID;
+			    break;
+			}
+			sc->sc_sensor[sensor].value = fanword;
+			break;
+		default:
+			sc->sc_sensor[sensor].flags |= SENSOR_FINVALID;
+			break;
+		}
+	}
+	iic_release_bus(sc->sc_tag, 0);
+}
+
+