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authorSebastian Huber <sebastian.huber@embedded-brains.de>2011-09-24 13:23:42 +0000
committerSebastian Huber <sebastian.huber@embedded-brains.de>2011-09-24 13:23:42 +0000
commite263c1607a12b3df0ef0eaf10477eaabd3e763a7 (patch)
treeafc29093490341c4d2a270d1ccc6edcadb51e8b0 /c/src/lib/libbsp/arm/lm3s69xx/console
parent2011-09-24 Sebastian Huber <sebastian.huber@embedded-brains.de> (diff)
downloadrtems-e263c1607a12b3df0ef0eaf10477eaabd3e763a7.tar.bz2
2011-09-24 Sebastian Huber <sebastian.huber@embedded-brains.de>
* 0001-Fixed-interrupt-handling-for-ARMv7M.patch, 0002-Fixed-system-handler-priority-register-access.patch, 0003-Disable-priority_mask-unused-for-NVIC.patch, 0004-Typo.patch, 0005-Evil-hack-for-BASEPRI-BASEPRI_MAX.patch, 0006-Evil-hack-to-increase-the-RAM-size.patch, bsp_specs, ChangeLog, clock/clock-config.c, configure.ac, console/console-config.c, console/uart.c, .cvsignore, include/bsp.h, include/.cvsignore, include/irq.h, include/lm3s69xx.h, include/uart.h, irq/irq.c, make/custom/lm3s6965.cfg, make/custom/lm3s69xx.inc, Makefile.am, README, start/start.S, startup/bspreset.c, startup/bspstart.c, startup/bspstarthook.c, startup/linkcmds.lm3s6965, timer/timer.c: New files.
Diffstat (limited to 'c/src/lib/libbsp/arm/lm3s69xx/console')
-rw-r--r--c/src/lib/libbsp/arm/lm3s69xx/console/console-config.c79
-rw-r--r--c/src/lib/libbsp/arm/lm3s69xx/console/uart.c107
2 files changed, 186 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/lm3s69xx/console/console-config.c b/c/src/lib/libbsp/arm/lm3s69xx/console/console-config.c
new file mode 100644
index 0000000000..00864b5bc6
--- /dev/null
+++ b/c/src/lib/libbsp/arm/lm3s69xx/console/console-config.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2011 Sebastian Huber. All rights reserved.
+ *
+ * embedded brains GmbH
+ * Obere Lagerstr. 30
+ * 82178 Puchheim
+ * Germany
+ * <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ *
+ * $Id$
+ */
+
+#include <rtems/bspIo.h>
+
+#include <libchip/serial.h>
+
+#include <bspopts.h>
+#include <bsp/irq.h>
+#include <bsp/uart.h>
+#include <bsp/lm3s69xx.h>
+
+console_tbl Console_Port_Tbl [] = {
+ #ifdef LM3S69XX_ENABLE_UART_0
+ {
+ .sDeviceName = "/dev/ttyS0",
+ .deviceType = SERIAL_CUSTOM,
+ .pDeviceFns = &lm3s69xx_uart_fns,
+ .ulCtrlPort1 = LM3S69XX_UART_0_BASE,
+ .ulClock = LM3S69XX_UART_BAUD,
+ .ulIntVector = LM3S69XX_IRQ_UART_0
+ },
+ #endif
+ #ifdef LM3S69XX_ENABLE_UART_1
+ {
+ .sDeviceName = "/dev/ttyS1",
+ .deviceType = SERIAL_CUSTOM,
+ .pDeviceFns = &lm3s69xx_uart_fns,
+ .ulCtrlPort1 = LM3S69XX_UART_1_BASE,
+ .ulClock = LM3S69XX_UART_BAUD,
+ .ulIntVector = LM3S69XX_IRQ_UART_1
+ }
+ #endif
+ #ifdef LM3S69XX_ENABLE_UART_2
+ {
+ .sDeviceName = "/dev/ttyS2",
+ .deviceType = SERIAL_CUSTOM,
+ .pDeviceFns = &lm3s69xx_uart_fns,
+ .ulCtrlPort1 = LM3S69XX_UART_2_BASE,
+ .ulClock = LM3S69XX_UART_BAUD,
+ .ulIntVector = LM3S69XX_IRQ_UART_2
+ }
+ #endif
+};
+
+#define PORT_COUNT (sizeof(Console_Port_Tbl) / sizeof(Console_Port_Tbl [0]))
+
+unsigned long Console_Port_Count = PORT_COUNT;
+
+rtems_device_minor_number Console_Port_Minor;
+
+console_data Console_Port_Data [PORT_COUNT];
+
+static void output_char(char c)
+{
+ const console_fns *con = Console_Port_Tbl [Console_Port_Minor].pDeviceFns;
+
+ if (c == '\n') {
+ con->deviceWritePolled((int) Console_Port_Minor, '\r');
+ }
+ con->deviceWritePolled((int) Console_Port_Minor, c);
+}
+
+BSP_output_char_function_type BSP_output_char = output_char;
+
+BSP_polling_getchar_function_type BSP_poll_char = NULL;
diff --git a/c/src/lib/libbsp/arm/lm3s69xx/console/uart.c b/c/src/lib/libbsp/arm/lm3s69xx/console/uart.c
new file mode 100644
index 0000000000..f85b23e55a
--- /dev/null
+++ b/c/src/lib/libbsp/arm/lm3s69xx/console/uart.c
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2011 Sebastian Huber. All rights reserved.
+ *
+ * embedded brains GmbH
+ * Obere Lagerstr. 30
+ * 82178 Puchheim
+ * Germany
+ * <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ *
+ * $Id$
+ */
+
+#include <bspopts.h>
+#include <bsp/uart.h>
+#include <libchip/sersupp.h>
+
+static volatile lm3s69xx_uart *get_uart_regs(int minor)
+{
+ console_tbl *ct = &Console_Port_Tbl [minor];
+
+ return (lm3s69xx_uart *) ct->ulCtrlPort1;
+}
+
+static void initialize(int minor)
+{
+ volatile lm3s69xx_uart *uart = get_uart_regs(minor);
+
+ uart->ctl = 0;
+ uart->lcrh = UARTLCRH_WLEN(0x3) | UARTLCRH_FEN;
+ uart->ctl = UARTCTL_RXE | UARTCTL_TXE | UARTCTL_UARTEN;
+}
+
+static int first_open(int major, int minor, void *arg)
+{
+ rtems_libio_open_close_args_t *oc = (rtems_libio_open_close_args_t *) arg;
+ struct rtems_termios_tty *tty = (struct rtems_termios_tty *) oc->iop->data1;
+ console_tbl *ct = &Console_Port_Tbl [minor];
+ console_data *cd = &Console_Port_Data [minor];
+
+ cd->termios_data = tty;
+ rtems_termios_set_initial_baud(tty, LM3S69XX_UART_BAUD);
+
+ return 0;
+}
+
+static int last_close(int major, int minor, void *arg)
+{
+ return 0;
+}
+
+static int read_polled(int minor)
+{
+ volatile lm3s69xx_uart *uart = get_uart_regs(minor);
+
+ if ((uart->fr & UARTFR_RXFE) != 0) {
+ return -1;
+ } else {
+ return UARTDR_DATA(uart->dr);
+ }
+}
+
+static void write_polled(int minor, char c)
+{
+ volatile lm3s69xx_uart *uart = get_uart_regs(minor);
+
+ while ((uart->fr & UARTFR_TXFF) != 0) {
+ /* Wait */
+ }
+
+ uart->dr = UARTDR_DATA(c);
+}
+
+static ssize_t write_support_polled(
+ int minor,
+ const char *s,
+ size_t n
+)
+{
+ ssize_t i = 0;
+
+ for (i = 0; i < n; ++i) {
+ write_polled(minor, s [i]);
+ }
+
+ return n;
+}
+
+static int set_attribues(int minor, const struct termios *term)
+{
+ return -1;
+}
+
+console_fns lm3s69xx_uart_fns = {
+ .deviceProbe = libchip_serial_default_probe,
+ .deviceFirstOpen = first_open,
+ .deviceLastClose = last_close,
+ .deviceRead = read_polled,
+ .deviceWrite = write_support_polled,
+ .deviceInitialize = initialize,
+ .deviceWritePolled = write_polled,
+ .deviceSetAttributes = set_attribues,
+ .deviceOutputUsesInterrupts = false
+};