0,0 → 1,132 |
/* |
* Copyright (C) 2006 Jakub Jermar |
* 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 |
*/ |
|
#include <arch/drivers/scr.h> |
#include <genarch/ofw/ofw_tree.h> |
#include <genarch/fb/fb.h> |
#include <arch/types.h> |
#include <typedefs.h> |
#include <func.h> |
#include <align.h> |
#include <print.h> |
|
scr_type_t scr_type = SCR_UNKNOWN; |
|
/** Initialize screen. |
* |
* Traverse OpenFirmware device tree in order to find necessary |
* info about the screen device. |
* |
* @param node Screen device node. |
*/ |
void scr_init(ofw_tree_node_t *node) |
{ |
ofw_tree_property_t *prop; |
const char *name; |
|
name = ofw_tree_node_name(node); |
|
if (strcmp(name, "SUNW,m64B") == 0) |
scr_type = SCR_ATYFB; |
else if (strcmp(name, "SUNW,ffb") == 0) |
scr_type = SCR_FFB; |
|
if (scr_type == SCR_UNKNOWN) { |
printf("Unknown keyboard device.\n"); |
return; |
} |
|
uintptr_t fb_addr; |
uint32_t fb_width = 0; |
uint32_t fb_height = 0; |
uint32_t fb_depth = 0; |
uint32_t fb_linebytes = 0; |
uint32_t fb_scanline = 0; |
|
prop = ofw_tree_getprop(node, "width"); |
if (prop && prop->value) |
fb_width = *((uint32_t *) prop->value); |
|
prop = ofw_tree_getprop(node, "height"); |
if (prop && prop->value) |
fb_height = *((uint32_t *) prop->value); |
|
prop = ofw_tree_getprop(node, "depth"); |
if (prop && prop->value) |
fb_depth = *((uint32_t *) prop->value); |
|
prop = ofw_tree_getprop(node, "linebytes"); |
if (prop && prop->value) |
fb_linebytes = *((uint32_t *) prop->value); |
|
prop = ofw_tree_getprop(node, "reg"); |
if (!prop) |
panic("Can't find \"reg\" property.\n"); |
|
switch (scr_type) { |
case SCR_ATYFB: |
if (prop->size / sizeof(ofw_pci_reg_t) < 2) { |
printf("Too few screen registers.\n"); |
return; |
} |
|
ofw_pci_reg_t *fb_reg = &((ofw_pci_reg_t *) prop->value)[1]; |
ofw_pci_reg_t abs_reg; |
|
if (!ofw_pci_reg_absolutize(node, fb_reg, &abs_reg)) { |
printf("Failed to absolutize fb register.\n"); |
return; |
} |
|
if (!ofw_pci_apply_ranges(node->parent, &abs_reg , &fb_addr)) { |
printf("Failed to determine screen address.\n"); |
return; |
} |
|
if (fb_depth == 24) |
fb_scanline = fb_linebytes * 4; |
else |
fb_scanline = fb_linebytes * (fb_depth >> 3); |
|
break; |
case SCR_FFB: |
default: |
panic("Unexpected type.\n"); |
} |
|
fb_init(fb_addr, fb_width, fb_height, fb_depth, fb_scanline, true); |
} |
|
/** @} |
*/ |