From 3ba0e05ab5b731e09478ed089ff954ad3580be63 Mon Sep 17 00:00:00 2001
From: Michael Giacomelli <giac2000@hotmail.com>
Date: Tue, 15 Nov 2011 20:37:47 +0000
Subject: [PATCH] Commit FS#12352 by  Stanislav Chizhik.  Add support for the
 PCF50635.  Enables detection of USB power sources.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30992 a1c6a512-1295-4272-9138-f99709370657
---
 docs/CREDITS                                  |  1 +
 firmware/drivers/pcf50635.c                   |  4 +--
 .../arm/tcc780x/cowond2/power-cowond2.c       | 34 +++++++++++++++++--
 3 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/docs/CREDITS b/docs/CREDITS
index 01a976e92d..1558b84f26 100644
--- a/docs/CREDITS
+++ b/docs/CREDITS
@@ -605,6 +605,7 @@ Michael Goerner
 Richard Brittain
 Andrew Ryabinin
 Maksim Postolati
+Stanislav Chizhik
 
 The libmad team
 The wavpack team
diff --git a/firmware/drivers/pcf50635.c b/firmware/drivers/pcf50635.c
index 9ccf5e29e2..38104b8d04 100644
--- a/firmware/drivers/pcf50635.c
+++ b/firmware/drivers/pcf50635.c
@@ -102,9 +102,9 @@ void pcf50635_init(void)
         PCF5063X_REG_GPIO3CFG, 0x0,
         
         /* IRQ masks (OF values in brackets) */
-        PCF5063X_REG_INT1M,    0xff, /* (0x8a enable alarm, usbins, adpins) */
+        PCF5063X_REG_INT1M,    0xfa, /* (0x8a enable alarm, usbins, adpins) */
         PCF5063X_REG_INT2M,    0xff, /* (0xff all masked) */
-        PCF5063X_REG_INT3M,    0xff, /* (0x7f enable onkey1s) */
+        PCF5063X_REG_INT3M,    0x7f, /* (0x7f enable onkey1s) */
         PCF5063X_REG_INT4M,    0xff, /* (0xfd enable lowbat) */
         PCF5063X_REG_INT5M,    0xff, /* (0xff all masked) */
         
diff --git a/firmware/target/arm/tcc780x/cowond2/power-cowond2.c b/firmware/target/arm/tcc780x/cowond2/power-cowond2.c
index 7e8f066c58..02e0282ead 100644
--- a/firmware/target/arm/tcc780x/cowond2/power-cowond2.c
+++ b/firmware/target/arm/tcc780x/cowond2/power-cowond2.c
@@ -51,6 +51,10 @@ void power_init(void)
         pmu = PCF50635;
 
         pcf50635_init();
+        
+        /* Clear pending interrupts from pcf50635 */
+        unsigned char data[5]; /* 0 = INT1, 1 = INT2, 2 = INT3, ... 4 = INT5 */
+        pcf50635_read_multiple(PCF5063X_REG_INT1, data, 5);
     }
     else
     {
@@ -64,11 +68,11 @@ void power_init(void)
         /* Clear pending interrupts */
         unsigned char data[3]; /* 0 = INT1, 1 = INT2, 2 = INT3 */
         pcf50606_read_multiple(0x02, data, 3);
+    }
 
 #ifndef BOOTLOADER
         IEN |= EXT3_IRQ_MASK;   /* Unmask EXT3 */
 #endif
-    }
 }
 
 void power_off(void)
@@ -85,6 +89,8 @@ void power_off(void)
 #ifndef BOOTLOADER
 void EXT3(void)
 {
+    if (get_pmu_type() == PCF50606)
+    {
     unsigned char data[3]; /* 0 = INT1, 1 = INT2, 2 = INT3 */
 
     /* Clear pending interrupts from pcf50606 */
@@ -104,6 +110,21 @@ void EXT3(void)
         /* Touchscreen event, do something about it */
         touchscreen_handle_device_irq();
     }
+    }
+    else
+    {
+        unsigned char data[5]; /* 0 = INT1, 1 = INT2, 2 = INT3, ... 4 = INT5 */
+
+        /* Clear pending interrupts from pcf50635 */
+        pcf50635_read_multiple(PCF5063X_REG_INT1, data, 5);
+
+        if (data[2] & PCF5063X_INT3_ONKEY1S)
+        {
+           
+            if (!charger_inserted())
+                sys_poweroff();
+        }
+    }
 }
 #endif
 
@@ -126,7 +147,16 @@ unsigned int power_input_status(void)
     }
     else
     {
-        /* TODO: use adapter/usb connection state from PCF50635 driver */
+        /* pcf50635 power input status can be obtained from MBCS1 register */
+	
+	int mbcs1 = pcf50635_read(PCF5063X_REG_MBCS1); 
+        /* Check AC adapter presence*/
+        if (mbcs1 & PCF5063X_MBCS1_ADAPTPRES)
+            return POWER_INPUT_MAIN_CHARGER;
+        
+        /* Check USB presence */
+        if (mbcs1 & PCF5063X_MBCS1_USBPRES)
+            return POWER_INPUT_USB_CHARGER;
     }
     
     return POWER_INPUT_NONE;