adc CLI command

(cherry picked from commit a8821b8)

Author: Miceuz

Makefile

@@ -41,6 +41,7 @@ OBJS += cmd_chibi_addr.o cmd_chibi_tx.o
 OBJS += cmd_i2ceeprom_read.o cmd_i2ceeprom_write.o cmd_lm75b_gettemp.o
 OBJS += cmd_reset.o cmd_sd_dir.o cmd_sysinfo.o cmd_uart.o 
 OBJS += cmd_roundedcorner.o cmd_pwm.o
+OBJS += cmd_adc.o
 
 VPATH += project/commands/drawing
 OBJS += cmd_backlight.o cmd_bmp.o cmd_button.o cmd_calibrate.o

project/cmd_tbl.h

@@ -97,6 +97,8 @@ void cmd_sd_dir(uint8_t argc, char **argv);
 void cmd_pwm(uint8_t argc, char **argv);
 #endif
 
+void cmd_adc_read(uint8_t argc, char **argv);
+
 #define CMD_NOPARAMS "This command has no parameters"
 
 /**************************************************************************/
@@ -114,7 +116,7 @@ cmd_t cmd_tbl[] =
   { "?",    0,  0,  0, cmd_help              , "Help"                           , CMD_NOPARAMS },
   { "V",    0,  0,  0, cmd_sysinfo           , "System Info"                    , CMD_NOPARAMS },
   { "Z",    0,  0,  0, cmd_reset             , "Reset"                          , CMD_NOPARAMS },
-
+  { "adc",  1,  2,  0, cmd_adc_read          , "ADC read"                       , "adc <channel> <num reads>" },
   #ifdef CFG_I2CEEPROM
   { "e",    1,  1,  0, cmd_i2ceeprom_read    , "EEPROM Read"                    , "'e <addr>'" },
   { "w",    2,  2,  0, cmd_i2ceeprom_write   , "EEPROM Write"                   , "'w <addr> <val>'" },

project/commands/cmd_adc.c

@@ -0,0 +1,78 @@
+/**************************************************************************/
+/*! 
+    @file     cmd_sysinfo.c
+    @author   Miceuz
+
+    @brief    Code to execute for cmd_sysinfo in the 'core/cmd'
+              command-line interpretter.
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2012, microBuilder SARL
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+/**************************************************************************/
+#include <stdio.h>
+
+#include "projectconfig.h"
+#include "core/cmd/cmd.h"
+#include "project/commands.h"       // Generic helper functions
+
+#include "core/adc/adc.h"
+
+/**************************************************************************/
+/*! 
+    PWM command handler
+*/
+/**************************************************************************/
+
+void cmd_adc_read(uint8_t argc, char **argv) {
+    int32_t channel = 0;
+    int32_t numReads = 1;
+    
+    getNumber (argv[0], &channel);
+    if(channel < 0) 
+    {
+      printf("Invalid duty channel, only channels [0..2] avalable%s", CFG_PRINTF_NEWLINE);
+      return;
+    }
+
+    if(argc > 1) {
+      getNumber (argv[1], &numReads);
+        if(numReads < 1) 
+        {
+            printf("Invalid number of reads [1..65535]%s", CFG_PRINTF_NEWLINE);
+            return;
+        }
+    }
+    adcInit();
+    int i = 0;
+    for(i = 0; i < numReads; i++) {
+        uint32_t result = adcReadSingle(channel);
+        printf("%d%s", (uint16_t)result, CFG_PRINTF_NEWLINE);
+    }
+}