Changeset 436 for trunk/hal/tsar_mips32/drivers/soclib_tty.h

Timestamp:

Mar 7, 2018, 9:02:03 AM (6 years ago)

Author:

alain

Message:

1) improve the threads and process destruction mechanism.
2) introduce FIFOs in the soclib_tty driver.

File:

• trunk/hal/tsar_mips32/drivers/soclib_tty.h (modified) (1 diff)

trunk/hal/tsar_mips32/drivers/soclib_tty.h

@@ -52 +52 @@
 #define TTY_STATUS_RX_FULL     1       // TTY_READ_REG full if 1
 #define TTY_STATUS_TX_FULL     2       // TTY_WRITE_REG full if 1
+
+/****************************************************************************************
+ * This Rstructure is used by the soclib_tty_isr for the RX channel.
+ ***************************************************************************************/
+
+#define TTY_FIFO_DEPTH  128
+
+typedef struct tty_fifo_s     // 32 bytes
+{
+    char          data[TTY_FIFO_DEPTH];   // one char per slot
+    unsigned int  ptr;                    // next free slot index
+    unsigned int  ptw;                    // next full slot index
+    unsigned int  sts;                    // number of full slots
+} tty_fifo_t;
+ 
 
 /****************************************************************************************