0,0 → 1,102 |
/* |
* Copyright (c) 2008 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 |
* @brief Driver for the UPA to PCI bridge (Psycho). |
*/ |
|
#include <arch/drivers/psycho.h> |
#include <arch/trap/interrupt.h> |
#include <mm/page.h> |
#include <mm/slab.h> |
#include <arch/types.h> |
#include <genarch/ofw/ofw_tree.h> |
|
#define PSYCHO_IGN 0x7c0 |
#define PSYCHO_KEYBOARD_INR 0x29 |
|
psycho_t *psycho_a = NULL; |
psycho_t *psycho_b = NULL; |
|
psycho_t *psycho_init(ofw_tree_node_t *node) |
{ |
psycho_t *psycho; |
ofw_tree_property_t *prop; |
|
prop = ofw_tree_getprop(node, "reg"); |
|
if (!prop || !prop->value) |
return NULL; |
|
ofw_upa_reg_t *reg = &((ofw_upa_reg_t *) prop->value)[0]; /* XXX */ |
|
uintptr_t paddr; |
if (!ofw_upa_apply_ranges(node->parent, reg, &paddr)) |
return NULL; |
|
psycho = (psycho_t *) malloc(sizeof(psycho_t), FRAME_ATOMIC); |
if (!psycho) |
return NULL; |
|
psycho->regs = (uint64_t *) hw_map(paddr, reg->size); |
|
return psycho; |
} |
|
void psycho_enable_interrupt(psycho_t *psycho, int inr) |
{ |
inr -= PSYCHO_IGN; |
switch (inr) { |
case PSYCHO_KEYBOARD_INR: |
psycho->regs[0] = 1; /* XXX */ |
break; |
default: |
panic("Unexpected INR (%d)\n", inr); |
break; |
} |
} |
|
void psycho_clear_interrupt(psycho_t *psycho, int inr) |
{ |
inr -= PSYCHO_IGN; |
switch (inr) { |
case PSYCHO_KEYBOARD_INR: |
psycho->regs[0] = 0; /* XXX */ |
break; |
default: |
panic("Unexpected INR (%d)\n", inr); |
break; |
} |
} |
|
/** @} |
*/ |