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authorlaforge <laforge@6dc7ffe9-61d6-0310-9af1-9938baff3ed1>2006-09-12 17:35:30 +0000
committerlaforge <laforge@6dc7ffe9-61d6-0310-9af1-9938baff3ed1>2006-09-12 17:35:30 +0000
commitd256545b2fd62d78910efcc6273c3b70abd3aa13 (patch)
treea05e17ec752cfbcc0b79fdbfba81fb949545a112 /firmware/src/os/dbgu.c
parent04e0441914eeb25e042189679b55c9577fc96d2a (diff)
move to new directory
git-svn-id: https://svn.openpcd.org:2342/trunk@191 6dc7ffe9-61d6-0310-9af1-9938baff3ed1
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diff --git a/firmware/src/os/dbgu.c b/firmware/src/os/dbgu.c
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+/*----------------------------------------------------------------------------
+ * ATMEL Microcontroller Software Support - ROUSSET -
+ *----------------------------------------------------------------------------
+ * The software is delivered "AS IS" without warranty or condition of any
+ * kind, either express, implied or statutory. This includes without
+ * limitation any warranty or condition with respect to merchantability or
+ * fitness for any particular purpose, or against the infringements of
+ * intellectual property rights of others.
+ *----------------------------------------------------------------------------
+ * File Name : Debug.c
+ * Object : Debug menu
+ * Creation : JPP 14/Sep/2004
+ * 1.1 29/Aug/05 JPP : Update AIC definion
+ *----------------------------------------------------------------------------*/
+
+// Include Standard files
+#include <board.h>
+#include <os/dbgu.h>
+#include "../openpcd.h"
+#include <os/led.h>
+#include <os/main.h>
+#include <asm/system.h>
+
+#define USART_SYS_LEVEL 4
+/*---------------------------- Global Variable ------------------------------*/
+//*--------------------------1--------------------------------------------------
+//* \fn AT91F_DBGU_Printk
+//* \brief This function is used to send a string through the DBGU channel
+//*----------------------------------------------------------------------------
+void AT91F_DBGU_Ready(void)
+{
+ while (!(AT91C_BASE_DBGU->DBGU_CSR & AT91C_US_TXEMPTY)) ;
+}
+
+//*----------------------------------------------------------------------------
+//* Function Name : Send_reset
+//* Object : Acknoledeg AIC and send reset
+//*----------------------------------------------------------------------------
+static void Send_reset(void)
+{
+ void (*pfct) (void) = (void (*)(void))0x00000000;
+
+ // Acknoledge the interrupt
+ // Mark the End of Interrupt on the AIC
+ AT91C_BASE_AIC->AIC_EOICR = 0;
+ AT91F_DBGU_Ready();
+ // Jump in reset
+ pfct();
+}
+
+//*----------------------------------------------------------------------------
+//* Function Name : DBGU_irq_handler
+//* Object : C handler interrupt function called by the interrupts
+//* assembling routine
+//*----------------------------------------------------------------------------
+static void DBGU_irq_handler(void)
+{
+ static char value;
+
+ AT91F_DBGU_Get(&value);
+ switch (value) {
+ case '0': //* info
+ AT91F_DBGU_Frame("Clear Pull up\n\r");
+ // Set
+ AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUP);
+ break;
+ case '1': //* info
+ AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUP);
+ AT91F_DBGU_Printk("Set Pull up\n\r");
+ // Reset Application
+ Send_reset();
+ break;
+ case '2':
+ AT91F_DBGU_Printk("Toggling LED 1\n\r");
+ led_toggle(1);
+ break;
+ case '3':
+ AT91F_DBGU_Printk("Toggling LED 2\n\r");
+ led_toggle(2);
+ break;
+ default:
+ if (_main_dbgu(value) < 0)
+ AT91F_DBGU_Printk("\n\r");
+ break;
+ } // end switch
+}
+
+void dbgu_rb_init(void);
+//*----------------------------------------------------------------------------
+//* \fn AT91F_DBGU_Init
+//* \brief This function is used to send a string through the DBGU channel (Very low level debugging)
+//*----------------------------------------------------------------------------
+void AT91F_DBGU_Init(void)
+{
+ dbgu_rb_init();
+
+ //* Open PIO for DBGU
+ AT91F_DBGU_CfgPIO();
+ //* Enable Transmitter & receivier
+ ((AT91PS_USART) AT91C_BASE_DBGU)->US_CR =
+ AT91C_US_RSTTX | AT91C_US_RSTRX;
+
+ //* Configure DBGU
+ AT91F_US_Configure((AT91PS_USART) AT91C_BASE_DBGU, // DBGU base address
+ MCK, AT91C_US_ASYNC_MODE, // Mode Register to be programmed
+ AT91C_DBGU_BAUD, // Baudrate to be programmed
+ 0); // Timeguard to be programmed
+
+ //* Enable Transmitter & receivier
+ ((AT91PS_USART) AT91C_BASE_DBGU)->US_CR = AT91C_US_RXEN | AT91C_US_TXEN;
+
+ //* Enable USART IT error and AT91C_US_ENDRX
+ AT91F_US_EnableIt((AT91PS_USART) AT91C_BASE_DBGU, AT91C_US_RXRDY);
+
+ //* open interrupt
+ AT91F_AIC_ConfigureIt(AT91C_BASE_AIC, AT91C_ID_SYS, USART_SYS_LEVEL,
+ AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL,
+ DBGU_irq_handler);
+ AT91F_AIC_EnableIt(AT91C_BASE_AIC, AT91C_ID_SYS);
+
+ AT91F_DBGU_Printk
+ ("\n\r-I- OpenPCD test mode\n\r 0) Set Pull-up 1) Clear Pull-up "
+ "2) Toggle LED1 3) Toggle LED2 4) Test RC632\n\r"
+ "5) Read RxWait 6) Write RxWait 7) Dump RC632 Regs\n\r");
+}
+
+//*----------------------------------------------------------------------------
+//* \fn AT91F_DBGU_Printk
+//* \brief This function is used to send a string through the DBGU channel (Very low level debugging)
+//*----------------------------------------------------------------------------
+void AT91F_DBGU_Printk(char *buffer)
+{
+ while (*buffer != '\0') {
+ while (!AT91F_US_TxReady((AT91PS_USART) AT91C_BASE_DBGU)) ;
+ AT91F_US_PutChar((AT91PS_USART) AT91C_BASE_DBGU, *buffer++);
+ }
+}
+
+//*----------------------------------------------------------------------------
+//* \fn AT91F_DBGU_Frame
+//* \brief This function is used to send a string through the DBGU channel
+//*----------------------------------------------------------------------------
+void AT91F_DBGU_Frame(char *buffer)
+{
+ unsigned char len;
+
+ for (len = 0; buffer[len] != '\0'; len++) {
+ }
+
+ AT91F_US_SendFrame((AT91PS_USART) AT91C_BASE_DBGU,
+ (unsigned char *)buffer, len, 0, 0);
+
+}
+
+//*----------------------------------------------------------------------------
+//* \fn AT91F_US_Get
+//* \brief Get a Char to USART
+//*----------------------------------------------------------------------------
+int AT91F_DBGU_Get(char *val)
+{
+ if ((AT91F_US_RxReady((AT91PS_USART) AT91C_BASE_DBGU)) == 0)
+ return (0);
+ else {
+ *val = AT91F_US_GetChar((AT91PS_USART) AT91C_BASE_DBGU);
+ return (-1);
+ }
+}
+
+// mthomas: function not used in this application. avoid
+// linking huge newlib code for sscanf.
+
+#ifdef DEBUG
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+const char *
+hexdump(const void *data, unsigned int len)
+{
+ static char string[256];
+ unsigned char *d = (unsigned char *) data;
+ unsigned int i, left;
+
+ string[0] = '\0';
+ left = sizeof(string);
+ for (i = 0; len--; i += 3) {
+ if (i >= sizeof(string) -4)
+ break;
+ snprintf(string+i, 4, " %02x", *d++);
+ }
+ return string;
+}
+
+struct dbgu {
+ char buf[4096];
+ char *next_inbyte;
+ char *next_outbyte;
+};
+static struct dbgu dbgu;
+
+void dbgu_rb_init(void)
+{
+ memset(dbgu.buf, 0, sizeof(dbgu.buf));
+ dbgu.next_inbyte = &dbgu.buf[0];
+ dbgu.next_outbyte = &dbgu.buf[0];
+}
+
+/* pull one char out of debug ring buffer */
+static int dbgu_rb_pull(char *ret)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ if (dbgu.next_outbyte == dbgu.next_inbyte) {
+ local_irq_restore(flags);
+ return -1;
+ }
+
+ *ret = *dbgu.next_outbyte;
+
+ dbgu.next_outbyte++;
+ if (dbgu.next_outbyte == &dbgu.buf[0]+sizeof(dbgu.buf)) {
+ //AT91F_DBGU_Printk("WRAP DURING PULL\r\n");
+ dbgu.next_outbyte = &dbgu.buf[0];
+ } else if (dbgu.next_outbyte > &dbgu.buf[0]+sizeof(dbgu.buf)) {
+ //AT91F_DBGU_Printk("OUTBYTE > END_OF_BUF!!\r\n");
+ dbgu.next_outbyte -= sizeof(dbgu.buf);
+ }
+
+ local_irq_restore(flags);
+
+ return 0;
+}
+
+static void __rb_flush(void)
+{
+ char ch;
+ while (dbgu_rb_pull(&ch) >= 0) {
+ while (!AT91F_US_TxReady((AT91PS_USART) AT91C_BASE_DBGU)) ;
+ AT91F_US_PutChar((AT91PS_USART) AT91C_BASE_DBGU, ch);
+ }
+}
+
+/* flush pending data from debug ring buffer to serial port */
+void dbgu_rb_flush(void)
+{
+ __rb_flush();
+}
+
+static void __dbgu_rb_append(char *data, int len)
+{
+ char *pos = dbgu.next_inbyte;
+
+ dbgu.next_inbyte += len;
+ if (dbgu.next_inbyte >= &dbgu.buf[0]+sizeof(dbgu.buf)) {
+ AT91F_DBGU_Printk("WRAP DURING APPEND\r\n");
+ dbgu.next_inbyte -= sizeof(dbgu.buf);
+ }
+
+ memcpy(pos, data, len);
+}
+
+void dbgu_rb_append(char *data, int len)
+{
+ unsigned long flags;
+ int bytes_left;
+ char *data_cur;
+
+ local_irq_save(flags);
+
+ bytes_left = &dbgu.buf[0]+sizeof(dbgu.buf)-dbgu.next_inbyte;
+ data_cur = data;
+
+ if (len > bytes_left) {
+ AT91F_DBGU_Printk("LEN > BYTES_LEFT\r\n");
+ __rb_flush();
+ __dbgu_rb_append(data_cur, bytes_left);
+ len -= bytes_left;
+ data_cur += bytes_left;
+ }
+ __dbgu_rb_append(data_cur, len);
+
+ local_irq_restore(flags);
+}
+
+static char dbg_buf[256];
+void debugp(const char *format, ...)
+{
+ va_list ap;
+
+ va_start(ap, format);
+ vsnprintf(dbg_buf, sizeof(dbg_buf)-1, format, ap);
+ va_end(ap);
+
+ dbg_buf[sizeof(dbg_buf)-1] = '\0';
+ //AT91F_DBGU_Frame(dbg_buf);
+ //AT91F_DBGU_Printk(dbg_buf);
+ dbgu_rb_append(dbg_buf, strlen(dbg_buf));
+}
+#else
+void dbgu_rb_flush(void) {}
+void dbgu_rb_init(void) {}
+#endif