* device/lib/pic16/libdev/pic18f[68][567]20.c:

[fw/sdcc] / device / include / pic16 / adc.h

diff --git a/device/include/pic16/adc.h b/device/include/pic16/adc.h
index 66a3cdf2a4f5e411ad8af44067d31ffeea955dfa..333e99090cb662cffcf5caf7c820e2615a61eda3 100644 (file)
--- a/device/include/pic16/adc.h
+++ b/device/include/pic16/adc.h
@@ -2,9 +2,25 @@
 /*
  * A/D conversion module library header
  *
+ * written by Vangelis Rokas, 2004 <vrokas AT otenet.gr>
+ *
  * Devices implemented:
  *     PIC18F[24][45][28]
  *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  */
 
 /*
@@ -14,6 +30,8 @@
 #ifndef __ADC_H__
 #define __ADC_H__
 
+/* link I/O libarary */
+#pragma library io
 
 /* interrupt on/off flag */
 #define ADC_INT_OFF    0x00
@@ -61,16 +79,22 @@
 #define ADC_CFG_1A_2R  0x0f
 
 
+/* initialize AD module */
 void adc_open(unsigned char channel, unsigned char fosc, unsigned char pcfg, unsigned char config);
 
+/* shutdown AD module */
 void adc_close(void);
 
+/* begin a conversion */
 void adc_conv(void);
 
-char adc_busy(void);
+/* return 1 if AD is performing a conversion, 0 if done */
+char adc_busy(void) __naked;
 
-int adc_read(void);
+/* get value of conversion */
+int adc_read(void) __naked;
 
-void adc_setchannel(unsigned char channel);
+/* setup conversion channel */
+void adc_setchannel(unsigned char channel) __naked;
 
 #endif