1 files changed, 57 insertions, 0 deletions

diff --git a/firmware/target/arm/iriver/ifp7xx/adc-ifp7xx.c b/firmware/target/arm/iriver/ifp7xx/adc-ifp7xx.c
new file mode 100644
index 0000000000..79b1ad0fcb
--- /dev/null
+++ b/firmware/target/arm/iriver/ifp7xx/adc-ifp7xx.c
@@ -0,0 +1,57 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Barry Wardell
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "config.h"
+#include "cpu.h"
+#include "system.h"
+#include "kernel.h"
+#include "thread.h"
+#include "adc.h"
+
+static unsigned short adcdata[NUM_ADC_CHANNELS];
+
+unsigned short adc_read(int channel)
+{
+    return adcdata[channel];
+}
+
+static void adc_tick(void)
+{
+    if (ADCST & 0x10) {
+        adcdata[0] = ADCCH0 & 0x3ff;
+        adcdata[1] = ADCCH1 & 0x3ff;
+        adcdata[2] = ADCCH2 & 0x3ff;
+        adcdata[3] = ADCCH3 & 0x3ff;
+        adcdata[4] = ADCCH4 & 0x3ff;
+        ADCST = 0xa;
+    }
+}
+
+void adc_init(void)
+{
+    ADCR24 = 0xaaaaa;
+    ADCR28 = 0;
+    ADCST = 2;
+    ADCST = 0xa;
+
+    while (!(ADCST & 0x10));
+    adc_tick();
+  
+    tick_add_task(adc_tick);
+}
+