H10: add more time between enabling touch-pad and reading ADC. Greatly improves touchpad stability. Add (and disable) checking for ADC done bit. Disabled because not yet working.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14419 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 6 insertions, 1 deletions

diff --git a/firmware/target/arm/iriver/h10/adc-h10.c b/firmware/target/arm/iriver/h10/adc-h10.c
index 8a4e24dd64..df9b16359b 100644
--- a/firmware/target/arm/iriver/h10/adc-h10.c
+++ b/firmware/target/arm/iriver/h10/adc-h10.c
@@ -42,7 +42,12 @@ unsigned short adc_scan(int channel)
     /* Start? */
     ADC_ADDR |= 0x20000000;
     ADC_ADDR |= 0x80000000;
-    
+
+#if 0
+    /* wait for ADC ready. THIS IS NOT WORKING (locks up) */
+    while(ADC_STATUS & (0x40 << (channel*8))); /* add loop protection here */
+#endif
+
     /* ADC_DATA_1 and ADC_DATA_2 are both four bytes, one byte per channel.
        For each channel, ADC_DATA_1 stores the 8-bit msb, ADC_DATA_2 stores the
        2-bit lsb (in bits 0 and 1). Each channel is 10 bits total. */