More z180 serial logic

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5437 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 148 insertions, 0 deletions

diff --git a/nuttx/arch/z80/src/z180/z180_lowuart.c b/nuttx/arch/z80/src/z180/z180_lowuart.c
new file mode 100644
index 000000000..493a793cd
--- /dev/null
+++ b/nuttx/arch/z80/src/z180/z180_lowuart.c
@@ -0,0 +1,148 @@
+/****************************************************************************
+ * arch/z80/src/z180/z180_lowuart.c
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <string.h>
+
+#include <arch/io.h>
+#include <nuttx/arch.h>
+#include <nuttx/sched.h>
+
+#include "chip/chip.h"
+#include "common/up_internal.h"
+#include "z180_config.h"
+
+#if defined(USE_LOWSERIALINIT) && defined(HAVE_UART)
+
+/****************************************************************************
+ * Private Definitions
+ ****************************************************************************/
+
+/* Select UART parameters for the selected console */
+
+#if defined(CONFIG_Z180_UART0_SERIAL_CONSOLE)
+#  define CONSOLE_CR           Z181_UART0_CR
+#  define CONSOLE_DR           Z181_UART0_DR
+#  define CONSOLE_BAUD         CONFIG_Z180_UART0_BAUD
+#  define CONSOLE_BITS         CONFIG_Z180_UART0_BITS
+#  define CONSOLE_2STOP        CONFIG_Z180_UART0_2STOP
+#  define CONSOLE_PARITY       CONFIG_Z180_UART0_PARITY
+
+#elif defined(CONFIG_Z180_UART1_SERIAL_CONSOLE)
+#  define CONSOLE_CR           Z182_UART1_CR
+#  define CONSOLE_DR           Z182_UART1_DR
+#  define CONSOLE_BAUD         CONFIG_Z180_UART1_BAUD
+#  define CONSOLE_BITS         CONFIG_Z180_UART1_BITS
+#  define CONSOLE_2STOP        CONFIG_Z180_UART1_2STOP
+#  define CONSOLE_PARITY       CONFIG_Z180_UART1_PARITY
+#endif
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: z180_uart_setbaud
+ *
+ * Description:
+ *
+ ****************************************************************************/
+
+#if defined(HAVE_UART_CONSOLE) && !defined(CONFIG_SUPPRESS_UART_CONFIG)
+static void z180_uart_setbaud(void)
+{
+#warning "Missing logic"
+}
+#endif /* HAVE_UART_CONSOLE && !CONFIG_SUPPRESS_UART_CONFIG */
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: z180_uart_lowinit
+ *
+ * Description:
+ *   Called early in the boot sequence to initialize the [E]SCC channel(s)
+ *
+ ****************************************************************************/
+
+void z180_uart_lowinit(void)
+{
+#warning "Missing logic"
+
+  /* Configure for usage of {E]SCC channels (whether or not we have a console) */
+
+#ifdef CONFIG_Z180_UART0
+#warning "Missing logic"
+#endif
+
+#ifdef CONFIG_Z180_UART1
+#warning "Missing logic"
+#endif
+
+  /* Configure the console for immediate usage */
+
+#if defined(HAVE_UART_CONSOLE) && !defined(CONFIG_SUPPRESS_UART_CONFIG)
+#warning "Missing logic"
+#endif /* HAVE_UART0_CONSOLE && !CONFIG_SUPPRESS_UART_CONFIG */
+}
+
+/****************************************************************************
+ * Name: z180_putc
+ *
+ * Description:
+ *   Low-level character output
+ *
+ ****************************************************************************/
+
+#ifdef HAVE_UART_CONSOLE
+void z180_putc(uint8_t ch)
+{
+#warning "Missing logic"
+}
+#endif
+
+#endif /* USE_LOWSERIALINIT && HAVE_UART*/