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cbus-tahvo: Add battery related register defines

PATCH In review Michael Buesch 2 participants 2 messages Feb 25, 2011 – Feb 28, 2011

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Michael Buesch

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PATCH 1/1 cbus-tahvo: Add battery related register defines

This adds battery related register defines to the tahvo driver.

Signed-off-by Michael Buesch <[email protected]>

---

The knowledge originates from various reverse engineering efforts. So naming might differ from the original unreleased documentation.

drivers/cbus/tahvo.h +11 -0
Index: linux-omap-2.6/drivers/cbus/tahvo.h
===================================================================
@@ -30,12 +30,23 @@
 #define TAHVO_REG_IDR		0x01	/* Interrupt ID */
 #define TAHVO_REG_IDSR		0x02	/* Interrupt status */
 #define TAHVO_REG_IMR		0x03	/* Interrupt mask */
+#define TAHVO_REG_CHGCURR	0x04	/* Charge current control PWM (8-bit) */
 #define TAHVO_REG_LEDPWMR	0x05	/* LED PWM */
 #define TAHVO_REG_USBR		0x06	/* USB control */
+#define TAHVO_REG_CHGCTL	0x08	/* Charge control register */
+#define  TAHVO_REG_CHGCTL_EN		0x0001	/* Global charge enable */
+#define  TAHVO_REG_CHGCTL_PWMOVR	0x0004	/* PWM override. Force charge PWM to 0%/100% duty cycle. */
+#define  TAHVO_REG_CHGCTL_PWMOVRZERO	0x0008	/* If set, PWM override is 0% (If unset -> 100%) */
+#define  TAHVO_REG_CHGCTL_CURMEAS	0x0040	/* Enable battery current measurement. */
+#define  TAHVO_REG_CHGCTL_CURTIMRST	0x0080	/* Current measure timer reset. */
+#define TAHVO_REG_BATCURRTIMER	0x0c	/* Battery current measure timer (8-bit) */
+#define TAHVO_REG_BATCURR	0x0d	/* Battery (dis)charge current (signed 16-bit) */
+
 #define TAHVO_REG_MAX		0x0d
 
 /* Interrupt sources */
 #define TAHVO_INT_VBUSON	0
+#define TAHVO_INT_BATCURR	7 /* Battery current measure timer */
 
 #define MAX_TAHVO_IRQ_HANDLERS	8