fuze+: move defines from .c to .h; implement button reading for volume up/down and power

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29822 a1c6a512-1295-4272-9138-f99709370657

2 files changed, 18 insertions, 2 deletions

diff --git a/firmware/target/arm/imx233/sansa-fuzeplus/button-fuzeplus.c b/firmware/target/arm/imx233/sansa-fuzeplus/button-fuzeplus.c
index 7f37d67d43..4882f243aa 100644
--- a/firmware/target/arm/imx233/sansa-fuzeplus/button-fuzeplus.c
+++ b/firmware/target/arm/imx233/sansa-fuzeplus/button-fuzeplus.c
@@ -19,6 +19,9 @@
  *
  ****************************************************************************/
 #include "button-target.h"
+#include "system.h"
+#include "system-target.h"
+#include "pinctrl-imx233.h"
 
 void button_init_device(void)
 {
@@ -26,5 +29,19 @@ void button_init_device(void)
 
 int button_read_device(void)
 {
-    return 0;
+    int res = 0;
+    if(!imx233_get_gpio_input_mask(1, 0x40000000))
+        res |= BUTTON_VOL_DOWN;
+    /* The imx233 uses the voltage on the PSWITCH pin to detect power up/down
+     * events as well as recovery mode. Since the power button is the power button
+     * and the volume up button is recovery, it is not possible to know whether
+     * power button is down when volume up is down (except if there is another
+     * method but volume up and power don't seem to be wired to GPIO pins). */
+    switch((HW_POWER_STS & HW_POWER_STS__PSWITCH_BM) >> HW_POWER_STS__PSWITCH_BP)
+    {
+        case 1: res |= BUTTON_POWER; break;
+        case 3: res |= BUTTON_VOL_UP; break;
+        default: break;
+    }
+    return res;
 }
diff --git a/firmware/target/arm/imx233/sansa-fuzeplus/button-target.h b/firmware/target/arm/imx233/sansa-fuzeplus/button-target.h
index b5d27bb176..81bbc34511 100644
--- a/firmware/target/arm/imx233/sansa-fuzeplus/button-target.h
+++ b/firmware/target/arm/imx233/sansa-fuzeplus/button-target.h
@@ -29,7 +29,6 @@ int button_read_device(void);
 
 /* Main unit's buttons */
 #define BUTTON_POWER        0x00000001
-
 #define BUTTON_VOL_UP       0x00000002
 #define BUTTON_VOL_DOWN     0x00000004