| 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; |
| } |
| } |
| |
| /** @} |
| */ |