bsps: Move console drivers to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

2 files changed, 293 insertions, 0 deletions

diff --git a/bsps/arm/gumstix/console/ffuart.c b/bsps/arm/gumstix/console/ffuart.c
new file mode 100644
index 0000000000..335fc6f4de
--- /dev/null
+++ b/bsps/arm/gumstix/console/ffuart.c
@@ -0,0 +1,227 @@
+/*
+ * Console driver for pxa255 full function port by Yang Xi <hiyangxi@gmail.com>
+ * Copyright (c) 2004 by Jay Monkman <jtm@lopingdog.com>
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp.h>
+#include <rtems/libio.h>
+#include <termios.h>
+
+#include <pxa255.h>
+#include <ffuart.h>
+#include <rtems/bspIo.h>
+#include <libchip/serial.h>
+#include <libchip/sersupp.h>
+
+volatile int dbg_dly;
+
+/* static function prototypes */
+static int     ffuart_first_open(int major, int minor, void *arg);
+static int     ffuart_last_close(int major, int minor, void *arg);
+static int     ffuart_read(int minor);
+static ssize_t ffuart_write(int minor, const char *buf, size_t len);
+static void    ffuart_init(int minor);
+static void    ffuart_write_polled(int minor, char c);
+static int     ffuart_set_attributes(int minor, const struct termios *t);
+
+/* Pointers to functions for handling the UART. */
+const console_fns ffuart_fns =
+{
+    libchip_serial_default_probe,
+    ffuart_first_open,
+    ffuart_last_close,
+    ffuart_read,
+    ffuart_write,
+    ffuart_init,
+    ffuart_write_polled,   /* not used in this driver */
+    ffuart_set_attributes,
+    FALSE      /* TRUE if interrupt driven, FALSE if not. */
+};
+
+
+/*
+ * This is called the first time each device is opened. Since
+ * the driver is polled, we don't have to do anything. If the driver
+ * were interrupt driven, we'd enable interrupts here.
+ */
+static int ffuart_first_open(int major, int minor, void *arg)
+{
+    return 0;
+}
+
+
+/*
+ * This is called the last time each device is closed.  Since
+ * the driver is polled, we don't have to do anything. If the driver
+ * were interrupt driven, we'd disable interrupts here.
+ */
+static int ffuart_last_close(int major, int minor, void *arg)
+{
+    return 0;
+}
+
+
+/*
+ * Read one character from UART.
+ *
+ * return -1 if there's no data, otherwise return
+ * the character in lowest 8 bits of returned int.
+ */
+static int ffuart_read(int minor)
+{
+    char c;
+    console_tbl *console_entry;
+    ffuart_reg_t *ffuart;
+
+    console_entry = BSP_get_uart_from_minor(minor);
+
+    if (console_entry == NULL) {
+        return -1;
+    }
+
+    ffuart = (ffuart_reg_t *)console_entry->ulCtrlPort1;
+
+    if (!(ffuart->lsr & FULL_RECEIVE)) {
+        return -1;
+    }
+
+    c  = ffuart->rbr & 0xff;
+
+    return c;
+}
+
+
+/*
+ * Write buffer to UART
+ *
+ * return 1 on success, -1 on error
+ */
+static ssize_t ffuart_write(int minor, const char *buf, size_t len)
+{
+    size_t i, x;
+    char c;
+    console_tbl *console_entry;
+    ffuart_reg_t *ffuart;
+
+    console_entry = BSP_get_uart_from_minor(minor);
+
+    if (console_entry == NULL) {
+        return -1;
+    }
+
+    ffuart = (ffuart_reg_t *)console_entry->ulCtrlPort1;
+
+    for (i = 0; i < len; i++) {
+
+        while(1) {
+            if (ffuart->lsr & SEND_EMPTY) {
+                break;
+            }
+        }
+
+        c = (char) buf[i];
+#if ON_SKYEYE != 1
+	if(c=='\n'){
+	  ffuart->rbr = '\r';
+	  for (x = 0; x < 100; x++) {
+            dbg_dly++; /* using a global so this doesn't get optimized out */
+	  }
+	  while(1){
+	    if(ffuart->lsr & SEND_EMPTY){
+	      break;
+	    }
+	  }
+	}
+#endif
+        ffuart->rbr = c;
+
+        /* the TXRDY flag does not seem to update right away (is this true?) */
+        /* so we wait a bit before continuing */
+        for (x = 0; x < 100; x++) {
+            dbg_dly++; /* using a global so this doesn't get optimized out */
+        }
+    }
+
+    return 1;
+}
+
+
+static void ffuart_init(int minor)
+{
+
+
+    console_tbl *console_entry;
+    ffuart_reg_t  *ffuart;
+    unsigned int divisor;
+
+    console_entry = BSP_get_uart_from_minor(minor);
+
+
+
+    if (console_entry == NULL) {
+        return;
+    }
+
+    ffuart = (ffuart_reg_t *)console_entry->ulCtrlPort1;
+    ffuart->lcr |= DLAB;
+    /*Set the Bound*/
+    ffuart->lcr |= DLAB;
+    divisor = FREQUENCY_UART / (115200*16);
+    ffuart->rbr = divisor & 0xff;
+    ffuart->ier = (divisor >> 8)&0xff;
+    /*Disable FIFO*/
+    ffuart->iir = 0;
+    ffuart->lcr &=~DLAB;
+    /*Enable UART*/
+    ffuart->ier = 0x40;
+    ffuart->lcr = EIGHT_BITS_NOPARITY_1STOPBIT;
+
+}
+
+/* I'm not sure this is needed for the shared console driver. */
+static void ffuart_write_polled(int minor, char c)
+{
+    ffuart_write(minor, &c, 1);
+}
+
+/* This is for setting baud rate, bits, etc. */
+static int ffuart_set_attributes(int minor, const struct termios *t)
+{
+    return 0;
+}
+
+/***********************************************************************/
+/*
+ * The following functions are not used by TERMIOS, but other RTEMS
+ * functions use them instead.
+ */
+/***********************************************************************/
+/*
+ * Read from UART. This is used in the exit code, and can't
+ * rely on interrupts.
+ */
+static int ffuart_poll_read(int minor)
+{
+    return ffuart_read(minor);
+}
+
+
+/*
+ * Write a character to the console. This is used by printk() and
+ * maybe other low level functions. It should not use interrupts or any
+ * RTEMS system calls. It needs to be very simple
+ */
+static void _BSP_put_char( char c ) {
+    ffuart_write_polled(0, c);
+}
+
+static int _BSP_poll_char(void) {
+  return ffuart_poll_read(0);
+}
+
+BSP_output_char_function_type     BSP_output_char = _BSP_put_char;
+BSP_polling_getchar_function_type BSP_poll_char = _BSP_poll_char;
diff --git a/bsps/arm/gumstix/console/uarts.c b/bsps/arm/gumstix/console/uarts.c
new file mode 100644
index 0000000000..08408695e0
--- /dev/null
+++ b/bsps/arm/gumstix/console/uarts.c
@@ -0,0 +1,66 @@
+/*
+ *  Console driver for GUMSTIX by Yang Xi <hiyangxi@gmail.com>
+ *
+ *  This driver uses the shared console driver in
+ *  ...../libbsp/shared/console.c
+ *
+ *  Copyright (c) 2003 by Cogent Computer Systems
+ *  Written by Jay Monkman <jtm@lopingdog.com>
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp.h>
+#include <rtems/libio.h>
+#include <termios.h>
+#include <rtems/bspIo.h>
+
+#include <pxa255.h>
+#include <libchip/serial.h>
+#include <libchip/sersupp.h>
+
+/* How many serial ports? */
+#define NUM_DEVS       1
+
+/* These are used by code in console.c */
+unsigned long Console_Configuration_Count = NUM_DEVS;
+
+extern const console_fns ffuart_fns;
+
+/*
+ * There's one item in array for each UART.
+ *
+ * Some of these fields are marked "NOT USED". They are not used
+ * by console.c, but may be used by drivers in libchip
+ *
+ * when we add other types of UARTS we will need to move this
+ * structure to a generic uart.c file with only this in it
+ */
+console_tbl Console_Configuration_Ports[] = {
+    {
+        "/dev/com0",       /* sDeviceName */
+        SERIAL_CUSTOM,     /* deviceType */
+        &ffuart_fns,       /* pDeviceFns */
+        NULL,              /* deviceProbe */
+        NULL,              /* pDeviceFlow */
+        0,                 /* ulMargin - NOT USED */
+        0,                 /* ulHysteresis - NOT USED */
+        NULL,              /* pDeviceParams */
+        FFUART_BASE,       /* ulCtrlPort1  - Pointer to DBGU regs */
+        0,                 /* ulCtrlPort2  - NOT USED */
+        0,                 /* ulDataPort  - NOT USED */
+        NULL,              /* getRegister - NOT USED */
+        NULL,              /* setRegister - NOT USED */
+        NULL,              /* getData - NOT USED */
+        NULL,              /* setData - NOT USED */
+        0,                 /* ulClock - NOT USED */
+        0                  /* ulIntVector - NOT USED */
+    }};
+
+
+console_tbl *BSP_get_uart_from_minor(int minor)
+{
+    return Console_Port_Tbl[minor];
+}