/branches/gc/kernel/genarch/src/ofw/ebus.c |
---|
0,0 → 1,140 |
/* |
* 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 ofw |
* @{ |
*/ |
/** |
* @file |
* @brief EBUS 'reg' and 'ranges' properties handling. |
* |
*/ |
#include <genarch/ofw/ofw_tree.h> |
#include <arch/memstr.h> |
#include <arch/trap/interrupt.h> |
#include <func.h> |
#include <panic.h> |
#include <debug.h> |
#include <macros.h> |
/** Apply EBUS ranges to EBUS register. */ |
bool ofw_ebus_apply_ranges(ofw_tree_node_t *node, ofw_ebus_reg_t *reg, uintptr_t *pa) |
{ |
ofw_tree_property_t *prop; |
ofw_ebus_range_t *range; |
count_t ranges; |
prop = ofw_tree_getprop(node, "ranges"); |
if (!prop) |
return false; |
ranges = prop->size / sizeof(ofw_ebus_range_t); |
range = prop->value; |
int i; |
for (i = 0; i < ranges; i++) { |
if (reg->space != range[i].child_space) |
continue; |
if (overlaps(reg->addr, reg->size, range[i].child_base, range[i].size)) { |
ofw_pci_reg_t pci_reg; |
pci_reg.space = range[i].parent_space; |
pci_reg.addr = range[i].parent_base + (reg->addr - range[i].child_base); |
pci_reg.size = reg->size; |
return ofw_pci_apply_ranges(node->parent, &pci_reg, pa); |
} |
} |
return false; |
} |
bool ofw_ebus_map_interrupt(ofw_tree_node_t *node, ofw_ebus_reg_t *reg, uint32_t interrupt, int *inr) |
{ |
ofw_tree_property_t *prop; |
ofw_tree_node_t *controller; |
prop = ofw_tree_getprop(node, "interrupt-map"); |
if (!prop || !prop->value) |
return false; |
ofw_ebus_intr_map_t *intr_map = prop->value; |
count_t count = prop->size / sizeof(ofw_ebus_intr_map_t); |
ASSERT(count); |
prop = ofw_tree_getprop(node, "interrupt-map-mask"); |
if (!prop || !prop->value) |
return false; |
ofw_ebus_intr_mask_t *intr_mask = prop->value; |
ASSERT(prop->size == sizeof(ofw_ebus_intr_mask_t)); |
uint32_t space = reg->space & intr_mask->space_mask; |
uint32_t addr = reg->addr & intr_mask->addr_mask; |
uint32_t intr = interrupt & intr_mask->intr_mask; |
int i; |
for (i = 0; i < count; i++) { |
if ((intr_map[i].space == space) && (intr_map[i].addr == addr) |
&& (intr_map[i].intr == intr)) |
goto found; |
} |
return false; |
found: |
/* |
* We found the device that functions as an interrupt controller |
* for the interrupt. We also found partial mapping from interrupt to INO. |
*/ |
controller = ofw_tree_find_node_by_handle(ofw_tree_lookup("/"), intr_map[i].controller_handle); |
if (!controller) |
return false; |
if (strcmp(ofw_tree_node_name(controller), "pci") != 0) { |
/* |
* This is not a PCI node. |
*/ |
return false; |
} |
/* |
* Let the PCI do the next step in mapping the interrupt. |
*/ |
if (!ofw_pci_map_interrupt(controller, NULL, intr_map[i].controller_ino, inr)) |
return false; |
return true; |
} |
/** @} |
*/ |
/branches/gc/kernel/genarch/src/ofw/fhc.c |
---|
0,0 → 1,133 |
/* |
* 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 ofw |
* @{ |
*/ |
/** |
* @file |
* @brief FHC 'reg' and 'ranges' properties handling. |
* |
*/ |
#include <genarch/ofw/ofw_tree.h> |
#include <arch/drivers/fhc.h> |
#include <arch/memstr.h> |
#include <func.h> |
#include <panic.h> |
#include <macros.h> |
bool ofw_fhc_apply_ranges(ofw_tree_node_t *node, ofw_fhc_reg_t *reg, uintptr_t *pa) |
{ |
ofw_tree_property_t *prop; |
ofw_fhc_range_t *range; |
count_t ranges; |
prop = ofw_tree_getprop(node, "ranges"); |
if (!prop) |
return false; |
ranges = prop->size / sizeof(ofw_fhc_range_t); |
range = prop->value; |
int i; |
for (i = 0; i < ranges; i++) { |
if (overlaps(reg->addr, reg->size, range[i].child_base, range[i].size)) { |
uintptr_t addr; |
addr = range[i].parent_base + (reg->addr - range[i].child_base); |
if (!node->parent->parent) { |
*pa = addr; |
return true; |
} |
if (strcmp(ofw_tree_node_name(node->parent), "central") != 0) |
panic("Unexpected parent node: %s.\n", ofw_tree_node_name(node->parent)); |
ofw_central_reg_t central_reg; |
central_reg.addr = addr; |
central_reg.size = reg->size; |
return ofw_central_apply_ranges(node->parent, ¢ral_reg, pa); |
} |
} |
return false; |
} |
bool ofw_central_apply_ranges(ofw_tree_node_t *node, ofw_central_reg_t *reg, uintptr_t *pa) |
{ |
if (node->parent->parent) |
panic("Unexpected parent node: %s.\n", ofw_tree_node_name(node->parent)); |
ofw_tree_property_t *prop; |
ofw_central_range_t *range; |
count_t ranges; |
prop = ofw_tree_getprop(node, "ranges"); |
if (!prop) |
return false; |
ranges = prop->size / sizeof(ofw_central_range_t); |
range = prop->value; |
int i; |
for (i = 0; i < ranges; i++) { |
if (overlaps(reg->addr, reg->size, range[i].child_base, range[i].size)) { |
*pa = range[i].parent_base + (reg->addr - range[i].child_base); |
return true; |
} |
} |
return false; |
} |
bool ofw_fhc_map_interrupt(ofw_tree_node_t *node, ofw_fhc_reg_t *reg, uint32_t interrupt, int *inr) |
{ |
fhc_t *fhc = NULL; |
if (!node->device) { |
fhc = fhc_init(node); |
if (!fhc) |
return false; |
node->device = fhc; |
central_fhc = fhc; |
} |
/* |
* The interrupt controller for the interrupt is the FHC itself. |
*/ |
fhc_enable_interrupt(fhc, interrupt); |
*inr = interrupt; |
return true; |
} |
/** @} |
*/ |
/branches/gc/kernel/genarch/src/ofw/upa.c |
---|
0,0 → 1,52 |
/* |
* 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 ofw |
* @{ |
*/ |
/** |
* @file |
* @brief UPA 'reg' and 'ranges' properties handling. |
* |
*/ |
#include <genarch/ofw/ofw_tree.h> |
#include <arch/memstr.h> |
#include <func.h> |
#include <panic.h> |
#include <macros.h> |
#include <debug.h> |
bool ofw_upa_apply_ranges(ofw_tree_node_t *node, ofw_upa_reg_t *reg, uintptr_t *pa) |
{ |
*pa = reg->addr; |
return true; |
} |
/** @} |
*/ |
/branches/gc/kernel/genarch/src/ofw/ofw_tree.c |
---|
0,0 → 1,272 |
/* |
* 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 ofw |
* @{ |
*/ |
/** |
* @file |
* @brief OpenFirmware device tree navigation. |
* |
*/ |
#include <genarch/ofw/ofw_tree.h> |
#include <arch/memstr.h> |
#include <mm/slab.h> |
#include <func.h> |
#include <print.h> |
#include <panic.h> |
#define PATH_MAX_LEN 80 |
#define NAME_BUF_LEN 50 |
static ofw_tree_node_t *ofw_root; |
void ofw_tree_init(ofw_tree_node_t *root) |
{ |
ofw_root = root; |
} |
/** Get OpenFirmware node property. |
* |
* @param node Node in which to lookup the property. |
* @param name Name of the property. |
* |
* @return Pointer to the property structure or NULL if no such property. |
*/ |
ofw_tree_property_t *ofw_tree_getprop(const ofw_tree_node_t *node, const char *name) |
{ |
int i; |
for (i = 0; i < node->properties; i++) { |
if (strcmp(node->property[i].name, name) == 0) |
return &node->property[i]; |
} |
return NULL; |
} |
/** Return value of the 'name' property. |
* |
* @param node Node of interest. |
* |
* @return Value of the 'name' property belonging to the node. |
*/ |
const char *ofw_tree_node_name(const ofw_tree_node_t *node) |
{ |
ofw_tree_property_t *prop; |
prop = ofw_tree_getprop(node, "name"); |
if (!prop) |
panic("Node without name property.\n"); |
if (prop->size < 2) |
panic("Invalid name property.\n"); |
return prop->value; |
} |
/** Lookup child of given name. |
* |
* @param node Node whose child is being looked up. |
* @param name Name of the child being looked up. |
* |
* @return NULL if there is no such child or pointer to the matching child node. |
*/ |
ofw_tree_node_t *ofw_tree_find_child(ofw_tree_node_t *node, const char *name) |
{ |
ofw_tree_node_t *cur; |
/* |
* Try to find the disambigued name. |
*/ |
for (cur = node->child; cur; cur = cur->peer) { |
if (strcmp(cur->da_name, name) == 0) |
return cur; |
} |
/* |
* Disambigued name not found. |
* Lets try our luck with possibly ambiguous "name" property. |
* |
* We need to do this because paths stored in "/aliases" |
* are not always fully-qualified. |
*/ |
for (cur = node->child; cur; cur = cur->peer) { |
if (strcmp(ofw_tree_node_name(cur), name) == 0) |
return cur; |
} |
return NULL; |
} |
/** Lookup first child of given device type. |
* |
* @param node Node whose child is being looked up. |
* @param name Device type of the child being looked up. |
* |
* @return NULL if there is no such child or pointer to the matching child node. |
*/ |
ofw_tree_node_t *ofw_tree_find_child_by_device_type(ofw_tree_node_t *node, const char *name) |
{ |
ofw_tree_node_t *cur; |
ofw_tree_property_t *prop; |
for (cur = node->child; cur; cur = cur->peer) { |
prop = ofw_tree_getprop(cur, "device_type"); |
if (!prop || !prop->value) |
continue; |
if (strcmp(prop->value, name) == 0) |
return cur; |
} |
return NULL; |
} |
/** Lookup node with matching node_handle. |
* |
* Child nodes are looked up recursively contrary to peer nodes that |
* are looked up iteratively to avoid stack overflow. |
* |
* @param root Root of the searched subtree. |
* @param handle OpenFirmware handle. |
* |
* @return NULL if there is no such node or pointer to the matching node. |
*/ |
ofw_tree_node_t *ofw_tree_find_node_by_handle(ofw_tree_node_t *root, uint32_t handle) |
{ |
ofw_tree_node_t *cur; |
for (cur = root; cur; cur = cur->peer) { |
if (cur->node_handle == handle) |
return cur; |
if (cur->child) { |
ofw_tree_node_t *node; |
node = ofw_tree_find_node_by_handle(cur->child, handle); |
if (node) |
return node; |
} |
} |
return NULL; |
} |
/** Lookup first peer of given device type. |
* |
* @param node Node whose peer is being looked up. |
* @param name Device type of the child being looked up. |
* |
* @return NULL if there is no such child or pointer to the matching child node. |
*/ |
ofw_tree_node_t *ofw_tree_find_peer_by_device_type(ofw_tree_node_t *node, const char *name) |
{ |
ofw_tree_node_t *cur; |
ofw_tree_property_t *prop; |
for (cur = node->peer; cur; cur = cur->peer) { |
prop = ofw_tree_getprop(cur, "device_type"); |
if (!prop || !prop->value) |
continue; |
if (strcmp(prop->value, name) == 0) |
return cur; |
} |
return NULL; |
} |
/** Lookup OpenFirmware node by its path. |
* |
* @param path Path to the node. |
* |
* @return NULL if there is no such node or pointer to the leaf node. |
*/ |
ofw_tree_node_t *ofw_tree_lookup(const char *path) |
{ |
char buf[NAME_BUF_LEN+1]; |
ofw_tree_node_t *node = ofw_root; |
index_t i, j; |
if (path[0] != '/') |
return NULL; |
for (i = 1; i < strlen(path) && node; i = j + 1) { |
for (j = i; j < strlen(path) && path[j] != '/'; j++) |
; |
if (i == j) /* skip extra slashes */ |
continue; |
memcpy(buf, &path[i], j - i); |
buf[j - i] = '\0'; |
node = ofw_tree_find_child(node, buf); |
} |
return node; |
} |
/** Print OpenFirmware device subtree rooted in a node. |
* |
* Child nodes are processed recursively and peer nodes are processed |
* iteratively in order to avoid stack overflow. |
* |
* @param node Root of the subtree. |
* @param path Current path, NULL for the very root of the entire tree. |
*/ |
static void ofw_tree_node_print(const ofw_tree_node_t *node, const char *path) |
{ |
char *p; |
const ofw_tree_node_t *cur; |
p = (char *) malloc(PATH_MAX_LEN, 0); |
for (cur = node; cur; cur = cur->peer) { |
if (cur->parent) { |
snprintf(p, PATH_MAX_LEN, "%s/%s", path, cur->da_name); |
printf("%s\n", p); |
} else { |
snprintf(p, PATH_MAX_LEN, "%s", cur->da_name); |
printf("/\n"); |
} |
if (cur->child) |
ofw_tree_node_print(cur->child, p); |
} |
free(p); |
} |
/** Print the structure of the OpenFirmware device tree. */ |
void ofw_tree_print(void) |
{ |
ofw_tree_node_print(ofw_root, NULL); |
} |
/** @} |
*/ |
/branches/gc/kernel/genarch/src/ofw/pci.c |
---|
0,0 → 1,140 |
/* |
* 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 ofw |
* @{ |
*/ |
/** |
* @file |
* @brief PCI 'reg' and 'ranges' properties handling. |
* |
*/ |
#include <genarch/ofw/ofw_tree.h> |
#include <arch/drivers/pci.h> |
#include <arch/trap/interrupt.h> |
#include <arch/memstr.h> |
#include <func.h> |
#include <panic.h> |
#include <macros.h> |
#define PCI_SPACE_MASK 0x03000000 |
#define PCI_ABS_MASK 0x80000000 |
#define PCI_REG_MASK 0x000000ff |
#define PCI_IGN 0x1f |
bool ofw_pci_apply_ranges(ofw_tree_node_t *node, ofw_pci_reg_t *reg, uintptr_t *pa) |
{ |
ofw_tree_property_t *prop; |
ofw_pci_range_t *range; |
count_t ranges; |
prop = ofw_tree_getprop(node, "ranges"); |
if (!prop) { |
if (strcmp(ofw_tree_node_name(node->parent), "pci") == 0) |
return ofw_pci_apply_ranges(node->parent, reg, pa); |
return false; |
} |
ranges = prop->size / sizeof(ofw_pci_range_t); |
range = prop->value; |
int i; |
for (i = 0; i < ranges; i++) { |
if ((reg->space & PCI_SPACE_MASK) != (range[i].space & PCI_SPACE_MASK)) |
continue; |
if (overlaps(reg->addr, reg->size, range[i].child_base, range[i].size)) { |
*pa = range[i].parent_base + (reg->addr - range[i].child_base); |
return true; |
} |
} |
return false; |
} |
bool ofw_pci_reg_absolutize(ofw_tree_node_t *node, ofw_pci_reg_t *reg, ofw_pci_reg_t *out) |
{ |
if (reg->space & PCI_ABS_MASK) { |
/* already absolute */ |
out->space = reg->space; |
out->addr = reg->addr; |
out->size = reg->size; |
return true; |
} |
ofw_tree_property_t *prop; |
ofw_pci_reg_t *assigned_address; |
count_t assigned_addresses; |
prop = ofw_tree_getprop(node, "assigned-addresses"); |
if (!prop) |
panic("Can't find \"assigned-addresses\" property.\n"); |
assigned_addresses = prop->size / sizeof(ofw_pci_reg_t); |
assigned_address = prop->value; |
int i; |
for (i = 0; i < assigned_addresses; i++) { |
if ((assigned_address[i].space & PCI_REG_MASK) == (reg->space & PCI_REG_MASK)) { |
out->space = assigned_address[i].space; |
out->addr = reg->addr + assigned_address[i].addr; |
out->size = reg->size; |
return true; |
} |
} |
return false; |
} |
/** Map PCI interrupt. |
* |
* So far, we only know how to map interrupts of non-PCI devices connected |
* to a PCI bridge. |
*/ |
bool ofw_pci_map_interrupt(ofw_tree_node_t *node, ofw_pci_reg_t *reg, int ino, int *inr) |
{ |
pci_t *pci = node->device; |
if (!pci) { |
pci = pci_init(node); |
if (!pci) |
return false; |
node->device = pci; |
} |
pci_enable_interrupt(pci, ino); |
*inr = (PCI_IGN << IGN_SHIFT) | ino; |
return true; |
} |
/** @} |
*/ |