| 0,0 → 1,88 |
|---|
| /* |
| * Copyright (c) 2008 Pavel Rimsky |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup sparc64 |
| * @{ |
| */ |
| /** |
| * @file |
| * @brief Niagara input/output driver based on hypervisor calls. |
| */ |
| |
| #include <arch/drivers/niagara.h> |
| #include <console/chardev.h> |
| #include <console/console.h> |
| #include <arch/sun4v/hypercall.h> |
| |
| /* functions referenced from definitions of I/O operations structures */ |
| static void niagara_putchar(chardev_t *, const char); |
| |
| /** character device operations */ |
| static chardev_operations_t niagara_ops = { |
| .write = niagara_putchar |
| }; |
| |
| /** Niagara character device */ |
| chardev_t niagara_io; |
| |
| /** Writes a single character to the standard output. */ |
| static void niagara_putchar(struct chardev * cd, const char c) |
| { |
| __hypercall_fast1(CONS_PUTCHAR, c); |
| if (c == '\n') |
| __hypercall_fast1(CONS_PUTCHAR, '\r'); |
| } |
| |
| |
| /** |
| * Grabs the input for kernel. |
| */ |
| void niagara_grab(void) |
| { |
| } |
| |
| /** |
| * Releases the input so that userspace can use it. |
| */ |
| void niagara_release(void) |
| { |
| } |
| |
| /** |
| * Initializes the input/output subsystem so that the Niagara standard |
| * input/output is used. |
| */ |
| void niagara_init(void) |
| { |
| chardev_initialize("niagara_io", &niagara_io, &niagara_ops); |
| stdin = &niagara_io; |
| stdout = &niagara_io; |
| } |
| |
| /** @} |
| */ |