Jean Mercier
Command all jmCLIG modules from serial port
Diff: jmLPC17xx_gpio.c
- Revision:
- 0:9112e09912db
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jmLPC17xx_gpio.c Sat Feb 12 16:50:25 2011 +0000
@@ -0,0 +1,279 @@
+/*************************************************************************
+ * @file jmLPC17xx_gpio.c
+ * @brief Command Line Interface Module for LPC_GPIO
+ *
+ * @version 1.1
+ * @date Jan 24, 2011
+ */
+
+#include "jmLPC17xx_gpio.h"
+#include "LPC17xx.h"
+#include "main.h"
+#include "jmCommands.h"
+#include "jmMessages.h"
+#include "jmRingBuffer.h"
+#include "stdio.h"
+
+
+#define DIR 0
+#define PIN 1
+#define MASK 2
+#define CLR 3
+#define SET 4
+
+#define Clear 0
+#define Set 1
+#define Toggle 2
+
+/***********************************************************************
+ * @brief Send port registers content
+ * @param[in] portNum (Port Number value)0..4
+ * @return none
+ **********************************************************************/
+void PortInfo(unsigned int portNum){
+ if(portNum <5){
+ printf("Port %1d\n",portNum);
+ printf("FIODIR \t0x%08X\n",jmGPIO[portNum]->FIODIR);
+ printf("FIOMASK \t0x%08X\n",jmGPIO[portNum]->FIOMASK);
+ printf("FIOPIN \t0x%08X\n",jmGPIO[portNum]->FIOPIN);
+ printf("FIOSET \t0x%08X\n",jmGPIO[portNum]->FIOSET);
+ printf("FIOCLR \t0x%08X\n",jmGPIO[portNum]->FIOCLR);
+ printf("\n");
+ }
+}
+
+/***********************************************************************
+ * @brief Send all ports registers content
+ * @param[in] none
+ * @return none
+ **********************************************************************/
+void PortsInfo(void){
+ unsigned int portNum;
+ for(portNum=0;portNum<5;portNum++) PortInfo(portNum);
+}
+
+/***********************************************************************
+ * @brief iport Command Line Interface.
+ * Send port register content
+ * Command Line Format: iport (portNumber)0..4
+ * @example iport 1 Will printout Port1 registers content
+ * @param[in] Extracted from command line ring buffer (PortNumber)0..4
+ * @return none
+ **********************************************************************/
+void cli_PortInfo(void){
+ unsigned int portNum;
+
+ if(ExtractUInteger(pLine,&portNum,0,4))
+ PortInfo(portNum);
+ else{
+ if(Help)printf("iport (portNumber)0..4\n");
+ // Ignore pending command line
+ NextCommand(nl,pLine);
+ }
+}
+
+
+/***********************************************************************
+ * @brief Command line interface to read and send Port.Bit per bit position
+ * Command Line Format: bitRead (Port Number)0..4 (Bit position)0..31
+ * ex: bitRead 1 18 read and send P1.18 input pin value
+ * pin must be previously set to input in GPIODIR and associated GPIOMASK bit= 0
+ * @param[in] Extracted from command line (Port Number)0..4 (Bit position)0..31
+ * @return none
+ **********************************************************************/
+void cli_BitRead(void){
+ unsigned int portNumber, bitPosition, bitValue;
+ // Extract pin number from Command Line
+ if(ExtractUInteger(pLine,&portNumber,0,4)){
+ // Extract bit position from Command Line
+ if(ExtractUInteger(pLine,&bitPosition,0,31)){
+ // Extract state from Command Line
+ bitValue = 1<<bitPosition;
+ if(jmGPIO[portNumber]->FIOPIN & bitValue)bitValue =1;
+ printf("P%d.%d %d\n",portNumber,bitPosition,bitValue);
+ return;
+ }
+ }
+ if(Help)printf("bitRead (Port Number)0..4 (Bit position)0..31\n");
+ // Ignore pending command line
+ NextCommand(nl,pLine);
+}
+
+/** Read GPIO Registers
+ * @brief Command Line Interface to Read and Send GPIO register value
+ * @param[in] Extracted from command line GPPG0 (Port)0..4 (Register DIR/PIN/MASK)0..2
+ * @returns Message: GPPG0 (Port)0..4 (Register DIR/PIN/MASK)0..2 (value)0..0xFFFFFFFF
+ */
+void cli_GPPG0(void){
+ uint32_t value=0;
+ unsigned int port, reg;
+ if(ExtractUInteger(pLine,&port,0,4)){ // extract port id
+ if(ExtractUInteger(pLine,®,0,4)){ // extract register id
+ switch(reg){
+ case DIR: value = jmGPIO[port]->FIODIR; break;
+ case PIN: value = jmGPIO[port]->FIOPIN; break;
+ case MASK: value = jmGPIO[port]->FIOMASK; break;
+ case CLR: value = jmGPIO[port]->FIOCLR; break;
+ case SET: value = jmGPIO[port]->FIOSET; break;
+ }
+ printf("GPPG0 %d %d 0x%08X\n",port,reg,value);
+ return;
+ }
+ }
+ if(Help)printf("GPPG0 (Port)0..4 (Register DIR/PIN/MASK/CLR/SET)0..4\n");
+ // Ignore pending command line
+ NextCommand(nl,pLine);
+}
+
+/***********************************************************************
+ * @brief Command line interface to access GPIO register bits
+ * Use with care. Designed to be used with gui which locks non MBED DIP pins
+ * Command Line Format: gpioBits (Port id)0..4 (Register DIR/PIN/MASK/CLR/SET)0..4 (value)0..0xFFFFFFFF (clear/set/toggle)0..2\n
+ * @param[in] Extracted from command line (Port)0..4 (Register DIR/PIN/MASK)0..2 (value)0..0xFFFFFFFF
+ * @return Message: GPPG0 (Port)0..4 (Register DIR/PIN/MASK)0..2 (value)0..0xFFFFFFFF
+ **********************************************************************/
+void cli_gpioBits(void){
+ unsigned int port, reg, value, action;
+ // Extract port id from Command Line
+ if(ExtractUInteger(pLine,&port,0,4)){
+ // Extract register id from Command Line
+ if(ExtractUInteger(pLine,®,0,4)){
+ // Extract value from Command Line
+ if(ExtractUInteger(pLine,&value,0,0xFFFFFFFF)){
+ // Extract state from Command Line
+ if(ExtractUInteger(pLine,&action,0,2)){
+ switch(reg){
+ case DIR:
+ switch(action){
+ case Clear: jmGPIO[port]->FIODIR &= ~value;
+ break;
+ case Set: jmGPIO[port]->FIODIR |= value;
+ break;
+ case Toggle: jmGPIO[port]->FIODIR ^= value;
+ break;
+ }
+ break;
+ case PIN:
+ switch(action){
+ case Clear: jmGPIO[port]->FIOPIN &= ~value;
+ break;
+ case Set: jmGPIO[port]->FIOPIN |= value;
+ break;
+ case Toggle: jmGPIO[port]->FIOPIN ^= value;
+ break;
+ }
+ break;
+ case MASK:
+ switch(action){
+ case Clear: jmGPIO[port]->FIOMASK &= ~value;
+ break;
+ case Set: jmGPIO[port]->FIOMASK |= value;
+ break;
+ case Toggle: jmGPIO[port]->FIOMASK ^= value;
+ break;
+ }
+ break;
+ case CLR:
+ switch(action){
+ case Clear: jmGPIO[port]->FIOCLR &= ~value;
+ break;
+ case Set: jmGPIO[port]->FIOCLR |= value;
+ break;
+ case Toggle: jmGPIO[port]->FIOCLR ^= value;
+ break;
+ }
+ break;
+ case SET:
+ switch(action){
+ case Clear: jmGPIO[port]->FIOSET &= ~value;
+ break;
+ case Set: jmGPIO[port]->FIOSET |= value;
+ break;
+ case Toggle: jmGPIO[port]->FIOSET ^= value;
+ break;
+ }
+ break;
+
+ }
+ // gui feedback
+ switch(reg)
+ {
+ case DIR: printf("GPPG0 %d %d 0x%08X\n",port,reg,jmGPIO[port]->FIODIR);
+ break;
+ case PIN: printf("GPPG0 %d %d 0x%08X\n",port,reg,jmGPIO[port]->FIOPIN);
+ break;
+ case MASK: printf("GPPG0 %d %d 0x%08X\n",port,reg,jmGPIO[port]->FIOMASK);
+ break;
+ case CLR: printf("GPPG0 %d %d 0x%08X\n",port,reg,jmGPIO[port]->FIOCLR);
+ break;
+ case SET: printf("GPPG0 %d %d 0x%08X\n",port,reg,jmGPIO[port]->FIOSET);
+ break;
+ }
+ if(Feedback)printf("GPIO %d %d 0x%08X %d\n",port,reg,value,action);
+ return;
+ }
+ }
+ }
+ }
+ if(Help)printf("gpioBits (Port id)0..4 (Register DIR/PIN/MASK/CLR/SET)0..4 (value)0..0xFFFFFFFF (clear/set/toggle)0..2\n");
+ // Ignore pending command line
+ NextCommand(nl,pLine);
+}
+
+/** @brief Reset/Set/Toggle an output pin
+ * Also sets pin as outputs.
+ * @param[in] pin pin id (value)0..432
+ * @param[in] action 0..2 Clear/Set/Toggle
+ * @returns Return Message: GPPB0 pin state
+ */
+void gpio(unsigned int pin, unsigned int action){
+ // Get port and bit for that pin
+ uint32_t bitValue;
+ uint8_t port;
+
+ // Get port, bit and bit value
+ port = pin/100;
+ bitValue = 1<<(pin%100);
+
+ // set mbed pin direction as output
+ jmGPIO[port]->FIODIR |= bitValue;
+ // make sure FIOMASK bit is enable
+ jmGPIO[port]->FIOMASK &= ~bitValue;
+
+ switch(action)
+ {
+ case Clear: jmGPIO[port]->FIOPIN &= ~bitValue; // reset pin low
+ break;
+ case Set: jmGPIO[port]->FIOPIN |= bitValue; // set pin High
+ break;
+ case Toggle:jmGPIO[port]->FIOPIN ^= bitValue; // toggle pin
+ break;
+ }
+ if( (jmGPIO[port]->FIOPIN & bitValue) == 0)bitValue = 0;
+ else bitValue = 1;
+
+ // Report bit modification
+ printf("GPPB0 %d %d\n",pin, bitValue);
+}
+
+/** @brief Command line to Reset/Set/Toggle an output pin
+ * Also sets pin as outputs. Not all pins are available
+ * Use with care. Designed to be used with gui which locks non MBED DIP pins
+ * Command Line Format: gpioBit (Pin id)0..432 (action clear/set/toggle)0..2
+ * @param[in] From command line: (Pin id)0..432 (action clear/set/toggle)0..2
+ * @returns Return Message: GPPB0 pin state
+ */
+void cli_gpioBit(void){
+ unsigned int pin, action;
+ // Extract pin number from Command Line
+ if(ExtractUInteger(pLine,&pin,0,432)){
+ // Extract action from Command Line
+ if(ExtractUInteger(pLine,&action,0,2)){
+ gpio(pin,action);
+ return;
+ }
+ }
+ if(Help)printf("Use with care ! gpioBit (pin Number)0..432 (action Clear/Set/Toggle)0..2\n");
+ // Ignore pending command line
+ NextCommand(nl,pLine);
+}