sniper: Fastboot support

[karo-tx-uboot.git] / common / stdio.c

diff --git a/common/stdio.c b/common/stdio.c
index 844f98c1844bf046b597e981cf7f860c521ee767..adbfc890dd4d8ac907cd73b7e9c4a481bda6150a 100644 (file)
--- a/common/stdio.c
+++ b/common/stdio.c
@@ -11,6 +11,7 @@
 
 #include <config.h>
 #include <common.h>
+#include <errno.h>
 #include <stdarg.h>
 #include <malloc.h>
 #include <stdio_dev.h>
@@ -33,25 +34,48 @@ char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" };
 #define        CONFIG_SYS_DEVICE_NULLDEV       1
 #endif
 
+#ifdef CONFIG_SYS_STDIO_DEREGISTER
+#define        CONFIG_SYS_DEVICE_NULLDEV       1
+#endif
 
 #ifdef CONFIG_SYS_DEVICE_NULLDEV
-void nulldev_putc(const char c)
+static void nulldev_putc(struct stdio_dev *dev, const char c)
 {
        /* nulldev is empty! */
 }
 
-void nulldev_puts(const char *s)
+static void nulldev_puts(struct stdio_dev *dev, const char *s)
 {
        /* nulldev is empty! */
 }
 
-int nulldev_input(void)
+static int nulldev_input(struct stdio_dev *dev)
 {
        /* nulldev is empty! */
        return 0;
 }
 #endif
 
+static void stdio_serial_putc(struct stdio_dev *dev, const char c)
+{
+       serial_putc(c);
+}
+
+static void stdio_serial_puts(struct stdio_dev *dev, const char *s)
+{
+       serial_puts(s);
+}
+
+static int stdio_serial_getc(struct stdio_dev *dev)
+{
+       return serial_getc();
+}
+
+static int stdio_serial_tstc(struct stdio_dev *dev)
+{
+       return serial_tstc();
+}
+
 /**************************************************************************
  * SYSTEM DRIVERS
  **************************************************************************
@@ -65,10 +89,10 @@ static void drv_system_init (void)
 
        strcpy (dev.name, "serial");
        dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
-       dev.putc = serial_putc;
-       dev.puts = serial_puts;
-       dev.getc = serial_getc;
-       dev.tstc = serial_tstc;
+       dev.putc = stdio_serial_putc;
+       dev.puts = stdio_serial_puts;
+       dev.getc = stdio_serial_getc;
+       dev.tstc = stdio_serial_tstc;
        stdio_register (&dev);
 
 #ifdef CONFIG_SYS_DEVICE_NULLDEV
@@ -128,35 +152,42 @@ struct stdio_dev* stdio_clone(struct stdio_dev *dev)
        return _dev;
 }
 
-int stdio_register (struct stdio_dev * dev)
+int stdio_register_dev(struct stdio_dev *dev, struct stdio_dev **devp)
 {
        struct stdio_dev *_dev;
 
        _dev = stdio_clone(dev);
        if(!_dev)
-               return -1;
+               return -ENODEV;
        list_add_tail(&(_dev->list), &(devs.list));
+       if (devp)
+               *devp = _dev;
+
        return 0;
 }
 
+int stdio_register(struct stdio_dev *dev)
+{
+       return stdio_register_dev(dev, NULL);
+}
+
 /* deregister the device "devname".
  * returns 0 if success, -1 if device is assigned and 1 if devname not found
  */
 #ifdef CONFIG_SYS_STDIO_DEREGISTER
-int stdio_deregister(const char *devname)
+int stdio_deregister_dev(struct stdio_dev *dev, int force)
 {
        int l;
        struct list_head *pos;
-       struct stdio_dev *dev;
        char temp_names[3][16];
 
-       dev = stdio_get_by_name(devname);
-
-       if(!dev) /* device not found */
-               return -1;
        /* get stdio devices (ListRemoveItem changes the dev list) */
        for (l=0 ; l< MAX_FILES; l++) {
                if (stdio_devices[l] == dev) {
+                       if (force) {
+                               strcpy(temp_names[l], "nulldev");
+                               continue;
+                       }
                        /* Device is assigned -> report error */
                        return -1;
                }
@@ -166,6 +197,7 @@ int stdio_deregister(const char *devname)
        }
 
        list_del(&(dev->list));
+       free(dev);
 
        /* reassign Device list */
        list_for_each(pos, &(devs.list)) {
@@ -177,9 +209,21 @@ int stdio_deregister(const char *devname)
        }
        return 0;
 }
+
+int stdio_deregister(const char *devname, int force)
+{
+       struct stdio_dev *dev;
+
+       dev = stdio_get_by_name(devname);
+
+       if (!dev) /* device not found */
+               return -ENODEV;
+
+       return stdio_deregister_dev(dev, force);
+}
 #endif /* CONFIG_SYS_STDIO_DEREGISTER */
 
-int stdio_init (void)
+int stdio_init_tables(void)
 {
 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
        /* already relocated for current ARM implementation */
@@ -196,6 +240,11 @@ int stdio_init (void)
        /* Initialize the list */
        INIT_LIST_HEAD(&(devs.list));
 
+       return 0;
+}
+
+int stdio_add_devices(void)
+{
 #ifdef CONFIG_SYS_I2C
        i2c_init_all();
 #else
@@ -229,5 +278,14 @@ int stdio_init (void)
 #ifdef CONFIG_CBMEM_CONSOLE
        cbmemc_init();
 #endif
-       return (0);
+
+       return 0;
+}
+
+int stdio_init(void)
+{
+       stdio_init_tables();
+       stdio_add_devices();
+
+       return 0;
 }