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Rev 534 Rev 577
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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 */
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#include <arch/ski/ski.h>
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#include <arch/ski/ski.h>
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#include <console/console.h>
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#include <console/chardev.h>
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/** Initialize debug console
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static chardev_t ski_console;
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 *
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 * Issue SSC (Simulator System Call) to
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 * to open debug console.
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static bool kb_disable;
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 */
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void ski_init_console(void)
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{
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    __asm__ (
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        "mov r15=%0\n"
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        "break 0x80000\n"
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        :
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        : "i" (SKI_INIT_CONSOLE)
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        : "r15", "r8"
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    );
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}
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/** Display character on debug console
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/** Display character on debug console
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 *
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 *
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 * Use SSC (Simulator System Call) to
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 * Use SSC (Simulator System Call) to
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 * display character on debug console.
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 * display character on debug console.
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 *
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 *
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 * @param ch   Character to be printed.
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 * @param ch   Character to be printed.
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 */
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 */
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void ski_putchar(const char ch)
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void ski_write(chardev_t *d, const char ch)
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{
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{
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    __asm__ (
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    __asm__ (
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        "mov r15=%0\n"
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        "mov r15=%0\n"
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        "mov r32=%1\n"      /* r32 is in0 */
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        "mov r32=%1\n"      /* r32 is in0 */
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        "break 0x80000\n"   /* modifies r8 */
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        "break 0x80000\n"   /* modifies r8 */
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        : "r15",  "r8"
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        : "r15",  "r8"
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    );
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    );
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    return (__s32)ch;
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    return (__s32)ch;
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}
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}
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/** Ask keyboard if a key was pressed. */
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void poll_keyboard(void)
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{
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    char ch;
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    if (kb_disable)
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        return;
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    ch = ski_getchar();
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    if(ch == '\r')
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        ch = '\n';
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    if (ch)
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        chardev_push_character(&ski_console, ch);
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}
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/* Called from getc(). */
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static void ski_kb_enable(chardev_t *)
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{
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    kb_disable = false;
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}
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/* Called from getc(). */
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static void ski_kb_disable(chardev_t *d)
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{
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    kb_disable = true; 
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}
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static chardev_operations_t ski_ops = {
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    .resume = ski_kb_enable,
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    .suspend = ski_kb_disable,
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    .write = ski_write
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};
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/** Initialize debug console
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 *
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 * Issue SSC (Simulator System Call) to
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 * to open debug console.
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 */
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void ski_init_console(void)
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{
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    __asm__ (
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        "mov r15=%0\n"
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        "break 0x80000\n"
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        :
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        : "i" (SKI_INIT_CONSOLE)
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        : "r15", "r8"
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    );
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    chardev_initialize("ski_console", &ski_console, &ski_ops);
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    stdin = &ski_console;
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    stdout = &ski_console;
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}