Sansa Clip: enable battery charging.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20006 a1c6a512-1295-4272-9138-f99709370657

apps/debug_menu.c

@@ -106,7 +106,8 @@
 #include "debug-target.h"
 #endif
 
-#if defined(SANSA_E200) || defined(SANSA_C200) || defined(PHILIPS_SA9200)
+#if defined(SANSA_E200) || defined(SANSA_C200) || defined(PHILIPS_SA9200) \
+    || defined(SANSA_CLIP)
 #include "ascodec.h"
 #include "as3514.h"
 #endif
@@ -1758,7 +1759,7 @@ static bool view_battery(void)
                 }
                     
                 lcd_puts(0, line++, buf);
-#elif defined(SANSA_E200) || defined(SANSA_C200)
+#elif defined(SANSA_E200) || defined(SANSA_C200) || defined(SANSA_CLIP)
                 const int first = CHARGE_STATE_DISABLED;
                 static const char * const chrgstate_strings[] =
                 {

firmware/SOURCES

@@ -1094,6 +1094,7 @@ target/arm/as3525/sansa-clip/lcd-as-clip.S
 target/arm/as3525/sansa-clip/button-clip.c
 target/arm/as3525/sansa-clip/backlight-clip.c
 #ifndef BOOTLOADER
+target/arm/powermgmt-ascodec.c
 target/arm/as3525/sansa-clip/powermgmt-clip.c
 #endif /* !BOOTLOADER */
 #endif /* !SIMULATOR */

firmware/export/config-clip.h

@@ -134,14 +134,14 @@
 /* define this if the flash memory uses the SecureDigital Memory Card protocol */
 #define CONFIG_STORAGE STORAGE_SD
 
-#define BATTERY_CAPACITY_DEFAULT 750    /* default battery capacity */
+#define BATTERY_CAPACITY_DEFAULT 380    /* default battery capacity */
-#define BATTERY_CAPACITY_MIN 750        /* min. capacity selectable */
+#define BATTERY_CAPACITY_MIN 380        /* min. capacity selectable */
-#define BATTERY_CAPACITY_MAX 750        /* max. capacity selectable */
+#define BATTERY_CAPACITY_MAX 380        /* max. capacity selectable */
 #define BATTERY_CAPACITY_INC 0          /* capacity increment */
 #define BATTERY_TYPES_COUNT  1          /* only one type */
 
-/* Hardware controlled charging? FIXME */
+/* Charging implemented in a target-specific algorithm */
-#define CONFIG_CHARGING CHARGING_SIMPLE
+#define CONFIG_CHARGING CHARGING_TARGET
 
 /* define this if the unit can be powered or charged via USB */
 #define HAVE_USB_POWER

firmware/target/arm/as3525/sansa-clip/powermgmt-clip.c

@@ -20,9 +20,6 @@
  ****************************************************************************/
 
 #include "config.h"
-#include "adc.h"
-#include "adc-target.h"
-#include "powermgmt.h"
 
 /* The battery manufacturer's website shows discharge curves down to 3.0V,
    so 'dangerous' and 'shutoff' levels of 3.4V and 3.3V should be safe.
@@ -52,13 +49,3 @@ const unsigned short percent_to_volt_charge[11] =
 };
 #endif /* CONFIG_CHARGING */
 
-/* ADC should read 0x3ff=5.12V */
-#define BATTERY_SCALE_FACTOR 5125       
-/* full-scale ADC readout (2^10) in millivolt */
-
-/* Returns battery voltage from ADC [millivolts] */
-unsigned int battery_adc_voltage(void)
-{
-    return (adc_read(ADC_RTCSUP) * BATTERY_SCALE_FACTOR) >> 10;
-}
-

firmware/target/arm/as3525/sansa-clip/powermgmt-target.h

@@ -0,0 +1,42 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2009 by Michael Sevakis
+ * Copyright (C) 2008 by Bertrik Sikken
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef POWERMGMT_TARGET_H
+#define POWERMGMT_TARGET_H
+
+/* Check if topped-off and monitor voltage while plugged. */
+#define BATT_FULL_VOLTAGE   4160
+#define BATT_VAUTO_RECHARGE 4100
+#define BATT_CHG_V          CHG_V_4_20V
+#define BATT_CHG_I          CHG_I_100MA
+#define CHARGER_TOTAL_TIMER (6*3600*2)  /* about 1.5 * capacity / current */
+#define ADC_BATTERY         ADC_BVDD
+
+void powermgmt_init_target(void);
+void charging_algorithm_step(void);
+void charging_algorithm_close(void);
+
+/* We want to be able to reset the averaging filter */
+#define HAVE_RESET_BATTERY_FILTER
+
+#define BATT_AVE_SAMPLES 32
+
+#endif /*  POWERMGMT_TARGET_H */