The dbg Directory

The dbg directory contains the platform dependant code for the debug agent driver. There are three files located at this top level:

Example A-13 New BSP: dbg Imakefile

C__SRCS = dbgBsp.c ns16550Bsp.c

AS_SRCS =

OBJS = $(C__SRCS:.c=.o) $(AS_SRCS:.s=.o)

DRIVERS = \
        $(DRV_DIST_BIN)/dbg/ns16550.o

BspProgTarget(dbgBsp.r, dbgBsp_init, $(OBJS), $(DRIVERS) $(BSP_LIBS))

DistProgram(dbgBsp.r, $(MYBSP_DIST_BIN)$(REL_DIR))

Depend($(C__SRCS) $(AS_SRCS))

Note that dbgBsp.r is linked with the ns16550.o object, which is located in the DRV component.

Example A-14 New BSP: dbgBsp.c

#include <bki/bki.h>
#include <bki/dbgBsp.h>

#include <drv/dbg/dbgUart.h>

extern void dbg_board_reset(int);

DbgBsp dbgBsp = { dbgUart_init,
                  dbgUart_ioctl,
                  dbgUart_mayGet,
                  dbgUart_getChar,
                  dbgUart_mayPut,
                  dbgUart_putChar,
                  dbgUart_ioRemap,
                  dbg_board_reset };

    void
dbg_board_reset(int mode)
{
    /* Code for your board reset */
}

    void
dbgBsp_init(BootConf* conf)
{
    conf->dbgBsp = dbgBsp;
}

Note that dbgBsp.c needs to be adapted for your board.

Example A-15 New BSP: ns16550Bsp.c

#include <drv/dbg/ns16550Bsp.h>

    void
ns16550_init(int port)
{
    /* Code for your board */
}

    void
ns16550_outb(unsigned int reg, unsigned char val)
{
    /* Code for your board */
}

    unsigned char
ns16550_inb(unsigned int reg)
{
    unsigned char c;
    /* Code for your board */
    return c;
}

    unsigned short
ns16550_divisor(unsigned int baud)
{
    unsigned short divisor;
    /* Code for your board */
    return divisor;
}

    void
ns16550_ioremap(void* newbase)
{
    /* Code for your board */
}

Note that the example above is for an ns16550 BSP. The file will be need to be adapted for your board.