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-rw-r--r--firmware/target/hosted/sonynwz/adc-nwz.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/firmware/target/hosted/sonynwz/adc-nwz.c b/firmware/target/hosted/sonynwz/adc-nwz.c
new file mode 100644
index 0000000000..d981ead9eb
--- /dev/null
+++ b/firmware/target/hosted/sonynwz/adc-nwz.c
@@ -0,0 +1,63 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ *
+ * Copyright (C) 2016 by Amaury Pouly
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "adc.h"
+#include "adc-target.h"
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+
+static int adc_fd = -1; /* file descriptor */
+
+static const char *nwz_adc_channel_name[NWZ_ADC_MAX_CHAN + 1] =
+{
+ [NWZ_ADC_VCCBAT] = "VCCBAT",
+ [NWZ_ADC_VCCVBUS] = "VCCBUS",
+ [NWZ_ADC_ADIN3] = "ADIN3",
+ [NWZ_ADC_ADIN4] = "ADIN4",
+ [NWZ_ADC_ADIN5] = "ADIN5",
+ [NWZ_ADC_ADIN6] = "ADIN6",
+ [NWZ_ADC_ADIN7] = "ADIN7",
+ [NWZ_ADC_ADIN8] = "ADIN8"
+};
+
+void adc_init(void)
+{
+ adc_fd = open(NWZ_ADC_DEV, O_RDONLY);
+}
+
+unsigned short adc_read(int channel)
+{
+ unsigned char val;
+ if(ioctl(adc_fd, NWZ_ADC_GET_VAL(channel), &val) < 0)
+ return 0;
+ else
+ return val;
+}
+
+const char *adc_name(int channel)
+{
+ if(channel < NWZ_ADC_MIN_CHAN || channel > NWZ_ADC_MAX_CHAN)
+ return "";
+ return nwz_adc_channel_name[channel];
+}
+