2000-10-18 Charles-Antoine Gauthier <charles.gauthier@nrc.ca>

* comm/i386-stub-glue.c, comm/tty_drv.c, comm/uart.c, comm/uart.h:
	Add the ability to set parity, number of data bits and
	number of stop bits to the existing i386 serial drivers.

c/src/lib/libbsp/i386/shared/ChangeLog

@@ -1,4 +1,10 @@
 
+	* comm/i386-stub-glue.c, comm/tty_drv.c, comm/uart.c, comm/uart.h:
+	Add the ability to set parity, number of data bits and
+	number of stop bits to the existing i386 serial drivers.
+
+2000-10-17	Joel Sherrill <joel@OARcorp.com>
+
 	* irq/idt.c, irq/Makefile.am: Moved idt.c to from libcpu/i386 so 
 	i386 RTEMS can be multilib'ed.
 

c/src/lib/libbsp/i386/shared/comm/i386-stub-glue.c

@@ -37,7 +37,7 @@ i386_stub_glue_init(int uart)
 
   uart_current = uart;
 
-  BSP_uart_init(uart, 38400, 0); 
+  BSP_uart_init(uart, 38400, CHR_8_BITS, 0, 0, 0); 
 }
 
 void BSP_uart_on(const rtems_raw_irq_connect_data* used)

c/src/lib/libbsp/i386/shared/comm/tty_drv.c

@@ -18,6 +18,19 @@
  * MODIFICATION/HISTORY:
  *
  * $Log$
+ * Revision 1.1  2000/08/30 08:18:56  joel
+ * 2000-08-26  Rosimildo da Silva  <rdasilva@connecttel.com>
+ *
+ * 	* shared/comm: Added "/dev/ttyS1" & "/dev/ttyS2" support for
+ * 	the i386 BSPs.
+ * 	* shared/comm/gdb_glue.c: New file.
+ * 	* shared/comm/i386_io.c: New file.
+ * 	* shared/comm/tty_drv.c: New file.
+ * 	* shared/comm/tty_drv.h: New file.
+ * 	* shared/comm/Makefile.am: Account for new files.
+ * 	* shared/comm/uart.c: Adds support for sending characters to
+ * 	another "line discipline."
+ *
  ****************************************************************************/
 
 #include <stdio.h>
@@ -119,7 +132,7 @@ tty1_initialize(rtems_device_major_number major,
    * Do device-specific initialization
    */
   /* 9600-8-N-1, without hardware flow control */
-  BSP_uart_init( BSP_UART_COM1, 9600, 0 );
+  BSP_uart_init( BSP_UART_COM1, 9600, CHR_8_BITS, 0, 0, 0 );
   status = BSP_install_rtems_irq_handler( &tty1_isr_data );
   if( !status )
   {
@@ -259,7 +272,7 @@ tty1_control(rtems_device_major_number major,
 static int
 conSetAttr(int port, int minor, const struct termios *t)
 {
-  int baud;
+  unsigned long baud, databits, parity, stopbits;
 
   switch (t->c_cflag & CBAUD) 
     {
@@ -319,8 +332,40 @@ conSetAttr(int port, int minor, const struct termios *t)
       rtems_fatal_error_occurred (RTEMS_INTERNAL_ERROR);
       return 0;
     }
-  printk("Setting baud, port=%X, baud=%d\n", port, baud );
-  BSP_uart_set_baud( port, baud );
+  if (t->c_cflag & PARENB) {
+    /* Parity is enabled */
+    if (t->c_cflag & PARODD) {
+      /* Parity is odd */
+      parity = PEN;
+    }
+    else {
+      /* Parity is even */
+      parity = PEN | EPS;
+    }
+  }
+  else {
+    /* No parity */
+    parity = 0;
+  }
+  
+  switch (t->c_cflag & CSIZE) {
+    case CS5: databits = CHR_5_BITS; break;
+    case CS6: databits = CHR_6_BITS; break;
+    case CS7: databits = CHR_7_BITS; break;
+    case CS8: databits = CHR_8_BITS; break;
+  }
+
+  if (t->c_cflag & CSTOPB) {
+    /* 2 stop bits */
+    stopbits = STB;
+  }
+  else {
+    /* 1 stop bit */
+    stopbits = 0;
+  }
+
+  printk("Setting attributes, port=%X, baud=%d, linemode = 0x%02x\n", port, baud, databits | parity | stopbits );
+  BSP_uart_set_attributes(port, baud, databits, parity, stopbits);
   return 0;
 }
 
@@ -362,7 +407,7 @@ tty2_initialize(rtems_device_major_number major,
    * Do device-specific initialization
    */
   /* 9600-8-N-1, without hardware flow control */
-  BSP_uart_init( BSP_UART_COM2, 9600, 0);
+  BSP_uart_init( BSP_UART_COM2, 9600, CHR_8_BITS, 0, 0, 0);
   status = BSP_install_rtems_irq_handler( &tty2_isr_data );
   if( !status )
   {

c/src/lib/libbsp/i386/shared/comm/uart.c

@@ -20,7 +20,10 @@
 struct uart_data
 {
   int hwFlow;
-  int baud;
+  unsigned long baud;
+  unsigned long databits;
+  unsigned long parity;
+  unsigned long stopbits;
 };
 
 static struct uart_data uart_data[2];
@@ -92,7 +95,15 @@ inline void uartError(int uart)
  * and longest rx fifo setting
  */
 void
-BSP_uart_init(int uart, int baud, int hwFlow)
+BSP_uart_init
+(
+  int uart,
+  unsigned long baud,
+  unsigned long databits,
+  unsigned long parity,
+  unsigned long stopbits,
+  int hwFlow
+)
 {
   unsigned char tmp;
   
@@ -128,7 +139,7 @@ BSP_uart_init(int uart, int baud, int hwFlow)
   uwrite(uart, DLM,  ((BSPBaseBaud/baud) >> 8) & 0xff); 
 
   /* 8-bit, no parity , 1 stop */
-  uwrite(uart, LCR, CHR_8_BITS);
+  uwrite(uart, LCR, databits | parity | stopbits);
   
 
   /* Set DTR, RTS and OUT2 high */
@@ -155,7 +166,14 @@ BSP_uart_init(int uart, int baud, int hwFlow)
  * Set baud
  */
 void
-BSP_uart_set_baud(int uart, int baud)
+BSP_uart_set_attributes
+(
+  int uart,
+  unsigned long baud,
+  unsigned long databits,
+  unsigned long parity,
+  unsigned long stopbits
+)
 {
   unsigned char mcr, ier;
 
@@ -168,7 +186,10 @@ BSP_uart_set_baud(int uart, int baud)
    * indeed required
    */
 
-  if(baud == uart_data[uart].baud)
+  if( (baud     == uart_data[uart].baud)     &&
+      (databits == uart_data[uart].databits) &&
+      (parity   == uart_data[uart].parity)   &&
+      (stopbits == uart_data[uart].stopbits) )
     {
       return;
     }
@@ -176,7 +197,7 @@ BSP_uart_set_baud(int uart, int baud)
   mcr = uread(uart, MCR);
   ier = uread(uart, IER);
 
-  BSP_uart_init(uart, baud, uart_data[uart].hwFlow);
+  BSP_uart_init(uart, baud, databits, parity, stopbits, uart_data[uart].hwFlow);
 
   uwrite(uart, MCR, mcr);
   uwrite(uart, IER, ier);

c/src/lib/libbsp/i386/shared/comm/uart.h

@@ -10,8 +10,8 @@
 #ifndef _BSPUART_H
 #define _BSPUART_H
 
-void BSP_uart_init(int uart, int baud, int hwFlow);
-void BSP_uart_set_baud(int aurt, int baud);
+void BSP_uart_init(int uart, unsigned long baud, unsigned long databits, unsigned long parity, unsigned long stopbits, int hwFlow);
+void BSP_uart_set_attributes(int uart, unsigned long baud, unsigned long databits, unsigned long parity, unsigned long stopbits);
 void BSP_uart_intr_ctrl(int uart, int cmd);
 void BSP_uart_throttle(int uart);
 void BSP_uart_unthrottle(int uart);