[tuxdroid-svn] r455 - firmware/tuxaudio/trunk

[jaguarondi <c2m...@c2...>]

Author: jaguarondi
Date: 2007-06-26 15:41:18 +0200 (Tue, 26 Jun 2007)
New Revision: 455

Modified:
   firmware/tuxaudio/trunk/spi.c
   firmware/tuxaudio/trunk/varis.c
   firmware/tuxaudio/trunk/varis.h
Log:
* Changed the acknowledge of the status sent by spi so that it's compatible
  with the new RF firmware (Modification from Pascal.)


Modified: firmware/tuxaudio/trunk/spi.c
===================================================================
--- firmware/tuxaudio/trunk/spi.c	2007-06-26 09:30:43 UTC (rev 454)
+++ firmware/tuxaudio/trunk/spi.c	2007-06-26 13:41:18 UTC (rev 455)
@@ -57,17 +57,26 @@
                     else
                         spi_headerb = 0x00;     /* no sound in frame */
 
-                    /* Status */
-                    if ((rf_data_sent_ack == RF_DATA_SENT_NACKED)
-                        || (rf_data_sent_ack == RF_DATA_SENT_DROPPED))
+                    /* Resend the previous command if nacked */
+                    if ((rf_data_sent_ack == RF_DATA_SENT_NACKED) &&
+                        (unlockCommand))
                     {
-                        spi_headerb |= 0x08;    /* resend the previous status if nacked */
-                        cli();
-                        sei();
+                        spi_headerb |= 0x08;
+                        unlockCommand = 0x00;
                     }
-                    else if (rf_data_sent_ack != RF_DATA_SENT_BUSY)     /* wait the end of transmission */
-                        if (!popStatus(spi_commandTX))  /* fetch the next status */
-                            spi_headerb |= 0x08;        /* indicate that the frame contains status */
+                    /* Wait the end of transmission */
+                    else if ((rf_data_sent_ack != RF_DATA_SENT_BUSY) &&
+                             (unlockCommand))
+                    {
+                        /* fetch the next status */
+                        if (!popStatus(spi_commandTX))
+                        {
+                            /* indicate that the frame contains status */
+                            spi_headerb |= 0x08;
+                            rf_data_sent_ack = RF_DATA_SENT_BUSY;
+                            unlockCommand = 0x00;
+                        }
+                    }
 
                     SPDR = spi_headerb; // Header byte
                     spi_slave = GET_SOUND_FIFO; // Next state
@@ -155,15 +164,20 @@
                             spi_commandRX[spi_count - 36] = SPDR;       // Put command into the buffer
                         else
                             spi_commandRX[spi_count - 19] = SPDR;       // Put command into the buffer
+                        if (spi_count == spi_lenght_data + 6)
+                        {
+                            if ((spi_commandRX[4] == RF_DATA_SENT_ACKED) ||
+                                (spi_commandRX[4] == RF_DATA_SENT_NACKED))
+                                /* Get acknowledge of previous sent data */
+                                rf_data_sent_ack = spi_commandRX[4];
+                        }
                     }
+                    else if ((rf_data_sent_ack == RF_DATA_SENT_ACKED) || 
+                             (rf_data_sent_ack == RF_DATA_SENT_NACKED))
+                        /* Wait radio ready to send the next command */
+                        unlockCommand = 1;
                     if (spi_count == spi_lenght_data + 6)
                     {
-                        /* Check the acknowledge from the rf */
-                        if (spi_headerb & 0x08) /* if data was sent in the current SPI transaction, mark buffer as full and drop the received status */
-                            rf_data_sent_ack = RF_DATA_SENT_BUSY;       /* status buffer of the rf filled */
-                        else
-                            rf_data_sent_ack = spi_commandRX[4];        /* get the acknowledge of the previous sent data */
-
                         PORTB |= 0x04;  // Chip deselect
                         spi_enable = 1;
                         break;

Modified: firmware/tuxaudio/trunk/varis.c
===================================================================
--- firmware/tuxaudio/trunk/varis.c	2007-06-26 09:30:43 UTC (rev 454)
+++ firmware/tuxaudio/trunk/varis.c	2007-06-26 13:41:18 UTC (rev 455)
@@ -43,6 +43,7 @@
 volatile unsigned char spi_commandRX[5];
 unsigned char commandRX = 0;
 uint8_t rf_data_sent_ack;
+uint8_t unlockCommand = 1;
 
 // FIFO Variable
 volatile uint8_t PWMbuffer[128];

Modified: firmware/tuxaudio/trunk/varis.h
===================================================================
--- firmware/tuxaudio/trunk/varis.h	2007-06-26 09:30:43 UTC (rev 454)
+++ firmware/tuxaudio/trunk/varis.h	2007-06-26 13:41:18 UTC (rev 455)
@@ -45,6 +45,7 @@
 extern volatile unsigned char spi_commandRX[5];
 extern unsigned char commandRX;
 extern uint8_t rf_data_sent_ack;
+extern uint8_t unlockCommand;
 
 #define RF_DATA_SENT_FREE       0x00
 #define RF_DATA_SENT_BUSY       0x01