Finer grained irq masking, blocking for i2c, plus a mutex to prevent conflicting read/writes

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8922 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 0 insertions, 3 deletions

diff --git a/firmware/drivers/adc.c b/firmware/drivers/adc.c
index f4bdb7a54f..f1a6d7e667 100644
--- a/firmware/drivers/adc.c
+++ b/firmware/drivers/adc.c
@@ -294,10 +294,7 @@ static struct adc_struct adcdata[NUM_ADC_CHANNELS];
 
 static unsigned short adc_scan(struct adc_struct *adc)
 {
-    /* Disable interrupts during the I2C transaction */
-    int old_irq_level = set_irq_level(HIGHEST_IRQ_LEVEL);
     unsigned short data = pcf50605_a2d_read(adc->channelnum);
-    set_irq_level(old_irq_level);
     /* This gives us a 13 bit value corresponding to 0-5.4 volts
      * The range of the value is 13FB-17FA */
     data = (data<<2)+0x13FB;