From d7b4645f5c7274660c9a020f172ac54f546686b5 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Thu, 16 Jan 2003 15:11:29 +0000
Subject: Ludovic Lange's initial code for FM Recorder, edited and adjusted by
 me.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3110 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/drivers/adc.h    |  4 ++++
 firmware/drivers/button.c | 36 +++++++++++++++++++++++++++++++++---
 firmware/drivers/power.c  |  6 +++++-
 3 files changed, 42 insertions(+), 4 deletions(-)

(limited to 'firmware/drivers')

diff --git a/firmware/drivers/adc.h b/firmware/drivers/adc.h
index 0c05f4d0f8..9c90cb08a7 100644
--- a/firmware/drivers/adc.h
+++ b/firmware/drivers/adc.h
@@ -23,8 +23,12 @@
 
 #define ADC_BATTERY             0 /* Battery voltage always reads 0x3FF due to
                                      silly scaling */
+#ifdef HAVE_FMADC
+#define ADC_CHARGE_REGULATOR    0 /* Uh, we read the battery voltage? */
+#else
 #define ADC_CHARGE_REGULATOR    1 /* Regulator reference voltage, should read
                                      about 0x1c0 when charging, else 0x3FF */
+#endif
 #define ADC_USB_POWER           2 /* USB, reads 0x3FF when USB is inserted */
 
 #define ADC_BUTTON_ROW1         4 /* Used for scanning the keys, different
diff --git a/firmware/drivers/button.c b/firmware/drivers/button.c
index ea3ffadffd..ebf606ac25 100644
--- a/firmware/drivers/button.c
+++ b/firmware/drivers/button.c
@@ -191,10 +191,19 @@ int button_get_w_tmo(int ticks)
  * DOWN, PLAY, LEFT, and RIGHT are likewise connected to AN5. */
  
 /* Button analog voltage levels */
+#ifdef HAVE_FMADC
+/* FM Recorder super-special levels */
+#define	LEVEL1		150
+#define	LEVEL2		385
+#define	LEVEL3		545
+#define	LEVEL4		700
+#else
+/* plain bog standard Recorder levels */
 #define	LEVEL1		250
 #define	LEVEL2		500
 #define	LEVEL3		700
 #define	LEVEL4		900
+#endif
 
 /*
  *Initialize buttons
@@ -219,11 +228,22 @@ static int button_read(void)
     int btn = BUTTON_NONE;
 
     /* Check port B pins for ON and OFF */
-    int data = PBDR;
+    int data;
+
+#ifdef HAVE_FMADC
+    /* TODO: use proper defines here, and not the numerics in the
+       function argument */
+    if ( adc_read(3) < 512 )
+        btn |= BUTTON_ON;
+    if ( adc_read(2) > 512 )
+        btn |= BUTTON_OFF;
+#else
+    data = PBDR;
     if ((data & PBDR_BTN_ON) == 0)
         btn |= BUTTON_ON;
     else if ((data & PBDR_BTN_OFF) == 0)
         btn |= BUTTON_OFF;
+#endif
 
     /* Check F1-3 and UP */
     data = adc_read(ADC_BUTTON_ROW1);
@@ -245,12 +265,22 @@ static int button_read(void)
         data = adc_read(ADC_BUTTON_ROW2);
         if (data >= LEVEL4)
             btn |= BUTTON_DOWN;
-        else if (data >= LEVEL3)
+        else if (data >= LEVEL3) {
+#ifdef HAVE_FMADC
+            btn |= BUTTON_RIGHT;
+#else
             btn |= BUTTON_PLAY;
+#endif
+        }
         else if (data >= LEVEL2)
             btn |= BUTTON_LEFT;
-        else if (data >= LEVEL1)
+        else if (data >= LEVEL1) {
+#ifdef HAVE_FMADC
+            btn |= BUTTON_PLAY;
+#else
             btn |= BUTTON_RIGHT;
+#endif
+        }
     }
   
     return btn;
diff --git a/firmware/drivers/power.c b/firmware/drivers/power.c
index b61090ff26..bb0ec80942 100644
--- a/firmware/drivers/power.c
+++ b/firmware/drivers/power.c
@@ -31,8 +31,12 @@ bool charger_enabled = 0;
 
 bool charger_inserted(void)
 {
-#ifdef ARCHOS_RECORDER
+#ifdef HAVE_CHARGE_CTRL
+#ifdef HAVE_FMADC
+    return adc_read(ADC_CHARGE_REGULATOR) < 0x1FF;
+#else
     return adc_read(ADC_EXT_POWER) > 0x100;
+#endif
 #else
     return (PADR & 1) == 0;
 #endif
-- 
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