Temperature polling and temporal correction

A temperature polling task is added to achieve temporal correction and
also reduce the latency of reading temperature.

Factor out sensor specific part to keep code clean.

Signed-off-by: Vic Yang <victoryang@chromium.org>

BUG=chrome-os-partner:7801
TEST=On link, 'temps' shows all temperature readings.
Cover each sensor with hand and see object temperature rise.
Compilation succeeded on bds/adv/daisy/discovery.

Change-Id: I3c44c8b2e3ab2aa9ce640d3fc25e7fba56534b86

1 files changed, 3 insertions, 32 deletions

diff --git a/include/temp_sensor.h b/include/temp_sensor.h
index fb35260e12..b20c77fe88 100644
--- a/include/temp_sensor.h
+++ b/include/temp_sensor.h
@@ -16,24 +16,12 @@ enum temp_sensor_id;
 
 struct temp_sensor_t {
 	const char* name;
-	/* Sensor address. Used by read and print functions. */
-	int addr;
 	/* Read sensor value and return temperature in K. */
-	int (*read)(const struct temp_sensor_t* self);
-	/* Print debug info on console. */
-	int (*print)(const struct temp_sensor_t* self);
+	int (*read)(int idx);
+	/* Index among the same kind of sensors. */
+	int idx;
 };
 
-/* Dummy value to put in "addr" field in temp_sensor_t if we don't need to
- * specify address.
- */
-#define TEMP_SENSOR_NO_ADDR 0
-
-/* Dummy value to put in "print" field in temp_sensor_t if we don't have debug
- * function for a sensor.
- */
-#define TEMP_SENSOR_NO_PRINT 0
-
 /* Initializes the module. */
 int temp_sensor_init(void);
 
@@ -41,21 +29,4 @@ int temp_sensor_init(void);
  * or -1 if error. */
 int temp_sensor_read(enum temp_sensor_id id);
 
-
-#define TMP006_ADDR(PORT,REG) ((PORT << 16) + REG)
-#define TMP006_PORT(ADDR) (ADDR >> 16)
-#define TMP006_REG(ADDR) (ADDR & 0xffff)
-
-/* Read TI TMP006 die temperature sensor. Return temperature in K. */
-int temp_sensor_tmp006_read_die_temp(const struct temp_sensor_t* sensor);
-
-/* Read TI TMP006 object temperature sensor. Return temperature in K. */
-int temp_sensor_tmp006_read_object_temp(const struct temp_sensor_t* sensor);
-
-/* Configure TMP006 DRDY pin. */
-void temp_sensor_tmp006_config(const struct temp_sensor_t* sensor);
-
-/* Print debug messages for TMP006. */
-int temp_sensor_tmp006_print(const struct temp_sensor_t* sensor);
-
 #endif  /* __CROS_EC_TEMP_SENSOR_H */