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Devicetree updates for 3.7

Browse source 
- Import of latest upstream device tree compiler (dtc)
 - New function of_get_child_by_name
 - Support for #size-cells of 0 and #addr-cells of >2
 - Couple of DT binding documentation updates
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Merge tag 'dt-for-3.7' of git://sources.calxeda.com/kernel/linux

Pull devicetree updates from Rob Herring:
 - Import of latest upstream device tree compiler (dtc)
 - New function of_get_child_by_name
 - Support for #size-cells of 0 and #addr-cells of >2
 - Couple of DT binding documentation updates

Fix up trivial conflicts due to of_get_child_by_name() having been added
next to the new of_get_next_available_child().

* tag 'dt-for-3.7' of git://sources.calxeda.com/kernel/linux:
  MAINTAINERS: add scripts/dtc under Devicetree maintainers
  dtc: import latest upstream dtc
  dt: Document general interrupt controller bindings
  dt/s3c64xx/spi: Use of_get_child_by_name to get a named child
  dt: introduce of_get_child_by_name to get child node by name
  of: i2c: add support for wakeup-source property
  of/address: Handle #address-cells > 2 specially
  DT: export of_irq_to_resource_table()
  devicetree: serial: Add documentation for imx serial
  devicetree: pwm: mxs-pwm.txt: Fix reg field annotation
  of: Allow busses with #size-cells=0
This commit is contained in:
Linus Torvalds 2012-10-03 09:44:08 -07:00
commit a54dfb1a84
42 changed files with 4055 additions and 710 deletions
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95
Documentation/devicetree/bindings/interrupt-controller/interrupts.txt Normal file
View file

@ -0,0 +1,95 @@
Specifying interrupt information for devices
============================================
1) Interrupt client nodes
-------------------------
Nodes that describe devices which generate interrupts must contain an
"interrupts" property. This property must contain a list of interrupt
specifiers, one per output interrupt. The format of the interrupt specifier is
determined by the interrupt controller to which the interrupts are routed; see
section 2 below for details.
The "interrupt-parent" property is used to specify the controller to which
interrupts are routed and contains a single phandle referring to the interrupt
controller node. This property is inherited, so it may be specified in an
interrupt client node or in any of its parent nodes.
2) Interrupt controller nodes
-----------------------------
A device is marked as an interrupt controller with the "interrupt-controller"
property. This is a empty, boolean property. An additional "#interrupt-cells"
property defines the number of cells needed to specify a single interrupt.
It is the responsibility of the interrupt controller's binding to define the
length and format of the interrupt specifier. The following two variants are
commonly used:
a) one cell
-----------
The #interrupt-cells property is set to 1 and the single cell defines the
index of the interrupt within the controller.
Example:
vic: intc@10140000 {
compatible = "arm,versatile-vic";
interrupt-controller;
#interrupt-cells = <1>;
reg = <0x10140000 0x1000>;
};
sic: intc@10003000 {
compatible = "arm,versatile-sic";
interrupt-controller;
#interrupt-cells = <1>;
reg = <0x10003000 0x1000>;
interrupt-parent = <&vic>;
interrupts = <31>; /* Cascaded to vic */
};
b) two cells
------------
The #interrupt-cells property is set to 2 and the first cell defines the
index of the interrupt within the controller, while the second cell is used
to specify any of the following flags:
- bits[3:0] trigger type and level flags
1 = low-to-high edge triggered
2 = high-to-low edge triggered
4 = active high level-sensitive
8 = active low level-sensitive
Example:
i2c@7000c000 {
gpioext: gpio-adnp@41 {
compatible = "ad,gpio-adnp";
reg = <0x41>;
interrupt-parent = <&gpio>;
interrupts = <160 1>;
gpio-controller;
#gpio-cells = <1>;
interrupt-controller;
#interrupt-cells = <2>;
nr-gpios = <64>;
};
sx8634@2b {
compatible = "smtc,sx8634";
reg = <0x2b>;
interrupt-parent = <&gpioext>;
interrupts = <3 0x8>;
#address-cells = <1>;
#size-cells = <0>;
threshold = <0x40>;
sensitivity = <7>;
};
};

2
Documentation/devicetree/bindings/pwm/mxs-pwm.txt
View file

@ -11,7 +11,7 @@ Example:
pwm: pwm@80064000 {
compatible = "fsl,imx28-pwm", "fsl,imx23-pwm";
reg = <0x80064000 2000>;
reg = <0x80064000 0x2000>;
#pwm-cells = <2>;
fsl,pwm-number = <8>;
};

35
Documentation/devicetree/bindings/serial/fsl-imx-uart.txt Normal file
View file

@ -0,0 +1,35 @@
* Freescale i.MX UART controller
Required properties:
- compatible : should be "fsl,imx21-uart"
- reg : Address and length of the register set for the device
- interrupts : Should contain UART interrupt number
Optional properties:
- fsl,uart-has-rtscts: indicate that RTS/CTS signals are used
Note: Each uart controller should have an alias correctly numbered
in "aliases" node.
Example:
- From imx51.dtsi:
aliases {
serial0 = &uart1;
serial1 = &uart2;
serial2 = &uart3;
};
uart1: serial@73fbc000 {
compatible = "fsl,imx51-uart", "fsl,imx21-uart";
reg = <0x73fbc000 0x4000>;
interrupts = <31>;
status = "disabled";
}
- From imx51-babbage.dts:
uart1: serial@73fbc000 {
fsl,uart-has-rtscts;
status = "okay";
};

1
MAINTAINERS
View file

@ -5067,6 +5067,7 @@ S: Maintained
F: Documentation/devicetree
F: drivers/of
F: include/linux/of*.h
F: scripts/dtc
K: of_get_property
K: of_match_table

35
drivers/of/address.c
View file

@ -9,8 +9,8 @@
/* Max address size we deal with */
#define OF_MAX_ADDR_CELLS 4
#define OF_CHECK_COUNTS(na, ns) ((na) > 0 && (na) <= OF_MAX_ADDR_CELLS && \
(ns) > 0)
#define OF_CHECK_ADDR_COUNT(na) ((na) > 0 && (na) <= OF_MAX_ADDR_CELLS)
#define OF_CHECK_COUNTS(na, ns) (OF_CHECK_ADDR_COUNT(na) && (ns) > 0)
static struct of_bus *of_match_bus(struct device_node *np);
static int __of_address_to_resource(struct device_node *dev,
@ -69,6 +69,14 @@ static u64 of_bus_default_map(u32 *addr, const __be32 *range,
(unsigned long long)cp, (unsigned long long)s,
(unsigned long long)da);
/*
* If the number of address cells is larger than 2 we assume the
* mapping doesn't specify a physical address. Rather, the address
* specifies an identifier that must match exactly.
*/
if (na > 2 && memcmp(range, addr, na * 4) != 0)
return OF_BAD_ADDR;
if (da < cp || da >= (cp + s))
return OF_BAD_ADDR;
return da - cp;
@ -182,7 +190,7 @@ const __be32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size,
}
bus->count_cells(dev, &na, &ns);
of_node_put(parent);
if (!OF_CHECK_COUNTS(na, ns))
if (!OF_CHECK_ADDR_COUNT(na))
return NULL;
/* Get "reg" or "assigned-addresses" property */
@ -490,6 +498,25 @@ u64 of_translate_dma_address(struct device_node *dev, const __be32 *in_addr)
}
EXPORT_SYMBOL(of_translate_dma_address);
bool of_can_translate_address(struct device_node *dev)
{
struct device_node *parent;
struct of_bus *bus;
int na, ns;
parent = of_get_parent(dev);
if (parent == NULL)
return false;
bus = of_match_bus(parent);
bus->count_cells(dev, &na, &ns);
of_node_put(parent);
return OF_CHECK_COUNTS(na, ns);
}
EXPORT_SYMBOL(of_can_translate_address);
const __be32 *of_get_address(struct device_node *dev, int index, u64 *size,
unsigned int *flags)
{
@ -506,7 +533,7 @@ const __be32 *of_get_address(struct device_node *dev, int index, u64 *size,
bus = of_match_bus(parent);
bus->count_cells(dev, &na, &ns);
of_node_put(parent);
if (!OF_CHECK_COUNTS(na, ns))
if (!OF_CHECK_ADDR_COUNT(na))
return NULL;
/* Get "reg" or "assigned-addresses" property */

23
drivers/of/base.c
View file

@ -390,6 +390,29 @@ struct device_node *of_get_next_available_child(const struct device_node *node,
}
EXPORT_SYMBOL(of_get_next_available_child);
/**
* of_get_child_by_name - Find the child node by name for a given parent
* @node: parent node
* @name: child name to look for.
*
* This function looks for child node for given matching name
*
* Returns a node pointer if found, with refcount incremented, use
* of_node_put() on it when done.
* Returns NULL if node is not found.
*/
struct device_node *of_get_child_by_name(const struct device_node *node,
const char *name)
{
struct device_node *child;
for_each_child_of_node(node, child)
if (child->name && (of_node_cmp(child->name, name) == 0))
break;
return child;
}
EXPORT_SYMBOL(of_get_child_by_name);
/**
* of_find_node_by_path - Find a node matching a full OF path
* @path: The full path to match

1
drivers/of/irq.c
View file

@ -392,6 +392,7 @@ int of_irq_to_resource_table(struct device_node *dev, struct resource *res,
return i;
}
EXPORT_SYMBOL_GPL(of_irq_to_resource_table);
struct intc_desc {
struct list_head list;

3
drivers/of/of_i2c.c
View file

@ -61,6 +61,9 @@ void of_i2c_register_devices(struct i2c_adapter *adap)
info.of_node = of_node_get(node);
info.archdata = &dev_ad;
if (of_get_property(node, "wakeup-source", NULL))
info.flags |= I2C_CLIENT_WAKE;
request_module("%s%s", I2C_MODULE_PREFIX, info.type);
result = i2c_new_device(adap, &info);

16
drivers/of/platform.c
View file

@ -78,6 +78,7 @@ void of_device_make_bus_id(struct device *dev)
struct device_node *node = dev->of_node;
const u32 *reg;
u64 addr;
const __be32 *addrp;
int magic;
#ifdef CONFIG_PPC_DCR
@ -105,7 +106,15 @@ void of_device_make_bus_id(struct device *dev)
*/
reg = of_get_property(node, "reg", NULL);
if (reg) {
addr = of_translate_address(node, reg);
if (of_can_translate_address(node)) {
addr = of_translate_address(node, reg);
} else {
addrp = of_get_address(node, 0, NULL, NULL);
if (addrp)
addr = of_read_number(addrp, 1);
else
addr = OF_BAD_ADDR;
}
if (addr != OF_BAD_ADDR) {
dev_set_name(dev, "%llx.%s",
(unsigned long long)addr, node->name);
@ -140,8 +149,9 @@ struct platform_device *of_device_alloc(struct device_node *np,
return NULL;
/* count the io and irq resources */
while (of_address_to_resource(np, num_reg, &temp_res) == 0)
num_reg++;
if (of_can_translate_address(np))
while (of_address_to_resource(np, num_reg, &temp_res) == 0)
num_reg++;
num_irq = of_irq_count(np);
/* Populate the resource table */

7
drivers/spi/spi-s3c64xx.c
View file

@ -835,9 +835,7 @@ static struct s3c64xx_spi_csinfo *s3c64xx_get_slave_ctrldata(
return ERR_PTR(-EINVAL);
}
for_each_child_of_node(slave_np, data_np)
if (!strcmp(data_np->name, "controller-data"))
break;
data_np = of_get_child_by_name(slave_np, "controller-data");
if (!data_np) {
dev_err(&spi->dev, "child node 'controller-data' not found\n");
return ERR_PTR(-EINVAL);
@ -847,6 +845,7 @@ static struct s3c64xx_spi_csinfo *s3c64xx_get_slave_ctrldata(
if (!cs) {
dev_err(&spi->dev, "could not allocate memory for controller"
" data\n");
of_node_put(data_np);
return ERR_PTR(-ENOMEM);
}
@ -855,11 +854,13 @@ static struct s3c64xx_spi_csinfo *s3c64xx_get_slave_ctrldata(
dev_err(&spi->dev, "chip select gpio is not specified or "
"invalid\n");
kfree(cs);
of_node_put(data_np);
return ERR_PTR(-EINVAL);
}
of_property_read_u32(data_np, "samsung,spi-feedback-delay", &fb_delay);
cs->fb_delay = fb_delay;
of_node_put(data_np);
return cs;
}

2
include/linux/of.h
View file

@ -193,6 +193,8 @@ extern struct device_node *of_get_next_child(const struct device_node *node,
extern struct device_node *of_get_next_available_child(
const struct device_node *node, struct device_node *prev);
extern struct device_node *of_get_child_by_name(const struct device_node *node,
const char *name);
#define for_each_child_of_node(parent, child) \
for (child = of_get_next_child(parent, NULL); child != NULL; \
child = of_get_next_child(parent, child))

1
include/linux/of_address.h
View file

@ -6,6 +6,7 @@
#ifdef CONFIG_OF_ADDRESS
extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
extern bool of_can_translate_address(struct device_node *dev);
extern int of_address_to_resource(struct device_node *dev, int index,
struct resource *r);
extern struct device_node *of_find_matching_node_by_address(

13
scripts/dtc/Makefile.dtc
View file

@ -3,7 +3,16 @@
# This is not a complete Makefile of itself. Instead, it is designed to
# be easily embeddable into other systems of Makefiles.
#
DTC_SRCS = dtc.c flattree.c fstree.c data.c livetree.c treesource.c srcpos.c \
checks.c
DTC_SRCS = \
checks.c \
data.c \
dtc.c \
flattree.c \
fstree.c \
livetree.c \
srcpos.c \
treesource.c \
util.c
DTC_GEN_SRCS = dtc-lexer.lex.c dtc-parser.tab.c
DTC_OBJS = $(DTC_SRCS:%.c=%.o) $(DTC_GEN_SRCS:%.c=%.o)

201
scripts/dtc/checks.c
View file

@ -31,12 +31,6 @@
#define TRACE(c, fmt, ...) do { } while (0)
#endif
enum checklevel {
IGNORE = 0,
WARN = 1,
ERROR = 2,
};
enum checkstatus {
UNCHECKED = 0,
PREREQ,
@ -57,14 +51,14 @@ struct check {
node_check_fn node_fn;
prop_check_fn prop_fn;
void *data;
enum checklevel level;
bool warn, error;
enum checkstatus status;
int inprogress;
int num_prereqs;
struct check **prereq;
};
#define CHECK(nm, tfn, nfn, pfn, d, lvl, ...) \
#define CHECK_ENTRY(nm, tfn, nfn, pfn, d, w, e, ...) \
static struct check *nm##_prereqs[] = { __VA_ARGS__ }; \
static struct check nm = { \
.name = #nm, \
@ -72,20 +66,37 @@ struct check {
.node_fn = (nfn), \
.prop_fn = (pfn), \
.data = (d), \
.level = (lvl), \
.warn = (w), \
.error = (e), \
.status = UNCHECKED, \
.num_prereqs = ARRAY_SIZE(nm##_prereqs), \
.prereq = nm##_prereqs, \
};
#define WARNING(nm, tfn, nfn, pfn, d, ...) \
CHECK_ENTRY(nm, tfn, nfn, pfn, d, true, false, __VA_ARGS__)
#define ERROR(nm, tfn, nfn, pfn, d, ...) \
CHECK_ENTRY(nm, tfn, nfn, pfn, d, false, true, __VA_ARGS__)
#define CHECK(nm, tfn, nfn, pfn, d, ...) \
CHECK_ENTRY(nm, tfn, nfn, pfn, d, false, false, __VA_ARGS__)
#define TREE_CHECK(nm, d, lvl, ...) \
CHECK(nm, check_##nm, NULL, NULL, d, lvl, __VA_ARGS__)
#define NODE_CHECK(nm, d, lvl, ...) \
CHECK(nm, NULL, check_##nm, NULL, d, lvl, __VA_ARGS__)
#define PROP_CHECK(nm, d, lvl, ...) \
CHECK(nm, NULL, NULL, check_##nm, d, lvl, __VA_ARGS__)
#define BATCH_CHECK(nm, lvl, ...) \
CHECK(nm, NULL, NULL, NULL, NULL, lvl, __VA_ARGS__)
#define TREE_WARNING(nm, d, ...) \
WARNING(nm, check_##nm, NULL, NULL, d, __VA_ARGS__)
#define TREE_ERROR(nm, d, ...) \
ERROR(nm, check_##nm, NULL, NULL, d, __VA_ARGS__)
#define TREE_CHECK(nm, d, ...) \
CHECK(nm, check_##nm, NULL, NULL, d, __VA_ARGS__)
#define NODE_WARNING(nm, d, ...) \
WARNING(nm, NULL, check_##nm, NULL, d, __VA_ARGS__)
#define NODE_ERROR(nm, d, ...) \
ERROR(nm, NULL, check_##nm, NULL, d, __VA_ARGS__)
#define NODE_CHECK(nm, d, ...) \
CHECK(nm, NULL, check_##nm, NULL, d, __VA_ARGS__)
#define PROP_WARNING(nm, d, ...) \
WARNING(nm, NULL, NULL, check_##nm, d, __VA_ARGS__)
#define PROP_ERROR(nm, d, ...) \
ERROR(nm, NULL, NULL, check_##nm, d, __VA_ARGS__)
#define PROP_CHECK(nm, d, ...) \
CHECK(nm, NULL, NULL, check_##nm, d, __VA_ARGS__)
#ifdef __GNUC__
static inline void check_msg(struct check *c, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
@ -95,13 +106,13 @@ static inline void check_msg(struct check *c, const char *fmt, ...)
va_list ap;
va_start(ap, fmt);
if ((c->level < WARN) || (c->level <= quiet))
return; /* Suppress message */
fprintf(stderr, "%s (%s): ",
(c->level == ERROR) ? "ERROR" : "Warning", c->name);
vfprintf(stderr, fmt, ap);
fprintf(stderr, "\n");
if ((c->warn && (quiet < 1))
|| (c->error && (quiet < 2))) {
fprintf(stderr, "%s (%s): ",
(c->error) ? "ERROR" : "Warning", c->name);
vfprintf(stderr, fmt, ap);
fprintf(stderr, "\n");
}
}
#define FAIL(c, ...) \
@ -167,7 +178,7 @@ static int run_check(struct check *c, struct node *dt)
out:
c->inprogress = 0;
if ((c->status != PASSED) && (c->level == ERROR))
if ((c->status != PASSED) && (c->error))
error = 1;
return error;
}
@ -176,6 +187,13 @@ out:
* Utility check functions
*/
/* A check which always fails, for testing purposes only */
static inline void check_always_fail(struct check *c, struct node *dt)
{
FAIL(c, "always_fail check");
}
TREE_CHECK(always_fail, NULL);
static void check_is_string(struct check *c, struct node *root,
struct node *node)
{
@ -190,8 +208,10 @@ static void check_is_string(struct check *c, struct node *root,
FAIL(c, "\"%s\" property in %s is not a string",
propname, node->fullpath);
}
#define CHECK_IS_STRING(nm, propname, lvl) \
CHECK(nm, NULL, check_is_string, NULL, (propname), (lvl))
#define WARNING_IF_NOT_STRING(nm, propname) \
WARNING(nm, NULL, check_is_string, NULL, (propname))
#define ERROR_IF_NOT_STRING(nm, propname) \
ERROR(nm, NULL, check_is_string, NULL, (propname))
static void check_is_cell(struct check *c, struct node *root,
struct node *node)
@ -207,8 +227,10 @@ static void check_is_cell(struct check *c, struct node *root,
FAIL(c, "\"%s\" property in %s is not a single cell",
propname, node->fullpath);
}
#define CHECK_IS_CELL(nm, propname, lvl) \
CHECK(nm, NULL, check_is_cell, NULL, (propname), (lvl))
#define WARNING_IF_NOT_CELL(nm, propname) \
WARNING(nm, NULL, check_is_cell, NULL, (propname))
#define ERROR_IF_NOT_CELL(nm, propname) \
ERROR(nm, NULL, check_is_cell, NULL, (propname))
/*
* Structural check functions
@ -227,20 +249,24 @@ static void check_duplicate_node_names(struct check *c, struct node *dt,
FAIL(c, "Duplicate node name %s",
child->fullpath);
}
NODE_CHECK(duplicate_node_names, NULL, ERROR);
NODE_ERROR(duplicate_node_names, NULL);
static void check_duplicate_property_names(struct check *c, struct node *dt,
struct node *node)
{
struct property *prop, *prop2;
for_each_property(node, prop)
for (prop2 = prop->next; prop2; prop2 = prop2->next)
for_each_property(node, prop) {
for (prop2 = prop->next; prop2; prop2 = prop2->next) {
if (prop2->deleted)
continue;
if (streq(prop->name, prop2->name))
FAIL(c, "Duplicate property name %s in %s",
prop->name, node->fullpath);
}
}
}
NODE_CHECK(duplicate_property_names, NULL, ERROR);
NODE_ERROR(duplicate_property_names, NULL);
#define LOWERCASE "abcdefghijklmnopqrstuvwxyz"
#define UPPERCASE "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
@ -256,7 +282,7 @@ static void check_node_name_chars(struct check *c, struct node *dt,
FAIL(c, "Bad character '%c' in node %s",
node->name[n], node->fullpath);
}
NODE_CHECK(node_name_chars, PROPNODECHARS "@", ERROR);
NODE_ERROR(node_name_chars, PROPNODECHARS "@");
static void check_node_name_format(struct check *c, struct node *dt,
struct node *node)
@ -265,7 +291,7 @@ static void check_node_name_format(struct check *c, struct node *dt,
FAIL(c, "Node %s has multiple '@' characters in name",
node->fullpath);
}
NODE_CHECK(node_name_format, NULL, ERROR, &node_name_chars);
NODE_ERROR(node_name_format, NULL, &node_name_chars);
static void check_property_name_chars(struct check *c, struct node *dt,
struct node *node, struct property *prop)
@ -276,7 +302,7 @@ static void check_property_name_chars(struct check *c, struct node *dt,
FAIL(c, "Bad character '%c' in property name \"%s\", node %s",
prop->name[n], prop->name, node->fullpath);
}
PROP_CHECK(property_name_chars, PROPNODECHARS, ERROR);
PROP_ERROR(property_name_chars, PROPNODECHARS);
#define DESCLABEL_FMT "%s%s%s%s%s"
#define DESCLABEL_ARGS(node,prop,mark) \
@ -331,8 +357,8 @@ static void check_duplicate_label_prop(struct check *c, struct node *dt,
for_each_marker_of_type(m, LABEL)
check_duplicate_label(c, dt, m->ref, node, prop, m);
}
CHECK(duplicate_label, NULL, check_duplicate_label_node,
check_duplicate_label_prop, NULL, ERROR);
ERROR(duplicate_label, NULL, check_duplicate_label_node,
check_duplicate_label_prop, NULL);
static void check_explicit_phandles(struct check *c, struct node *root,
struct node *node, struct property *prop)
@ -391,7 +417,7 @@ static void check_explicit_phandles(struct check *c, struct node *root,
node->phandle = phandle;
}
PROP_CHECK(explicit_phandles, NULL, ERROR);
PROP_ERROR(explicit_phandles, NULL);
static void check_name_properties(struct check *c, struct node *root,
struct node *node)
@ -420,8 +446,8 @@ static void check_name_properties(struct check *c, struct node *root,
free(prop);
}
}
CHECK_IS_STRING(name_is_string, "name", ERROR);
NODE_CHECK(name_properties, NULL, ERROR, &name_is_string);
ERROR_IF_NOT_STRING(name_is_string, "name");
NODE_ERROR(name_properties, NULL, &name_is_string);
/*
* Reference fixup functions
@ -448,7 +474,7 @@ static void fixup_phandle_references(struct check *c, struct node *dt,
*((cell_t *)(prop->val.val + m->offset)) = cpu_to_fdt32(phandle);
}
}
CHECK(phandle_references, NULL, NULL, fixup_phandle_references, NULL, ERROR,
ERROR(phandle_references, NULL, NULL, fixup_phandle_references, NULL,
&duplicate_node_names, &explicit_phandles);
static void fixup_path_references(struct check *c, struct node *dt,
@ -473,19 +499,19 @@ static void fixup_path_references(struct check *c, struct node *dt,
strlen(path) + 1);
}
}
CHECK(path_references, NULL, NULL, fixup_path_references, NULL, ERROR,
ERROR(path_references, NULL, NULL, fixup_path_references, NULL,
&duplicate_node_names);
/*
* Semantic checks
*/
CHECK_IS_CELL(address_cells_is_cell, "#address-cells", WARN);
CHECK_IS_CELL(size_cells_is_cell, "#size-cells", WARN);
CHECK_IS_CELL(interrupt_cells_is_cell, "#interrupt-cells", WARN);
WARNING_IF_NOT_CELL(address_cells_is_cell, "#address-cells");
WARNING_IF_NOT_CELL(size_cells_is_cell, "#size-cells");
WARNING_IF_NOT_CELL(interrupt_cells_is_cell, "#interrupt-cells");
CHECK_IS_STRING(device_type_is_string, "device_type", WARN);
CHECK_IS_STRING(model_is_string, "model", WARN);
CHECK_IS_STRING(status_is_string, "status", WARN);
WARNING_IF_NOT_STRING(device_type_is_string, "device_type");
WARNING_IF_NOT_STRING(model_is_string, "model");
WARNING_IF_NOT_STRING(status_is_string, "status");
static void fixup_addr_size_cells(struct check *c, struct node *dt,
struct node *node)
@ -503,8 +529,8 @@ static void fixup_addr_size_cells(struct check *c, struct node *dt,
if (prop)
node->size_cells = propval_cell(prop);
}
CHECK(addr_size_cells, NULL, fixup_addr_size_cells, NULL, NULL, WARN,
&address_cells_is_cell, &size_cells_is_cell);
WARNING(addr_size_cells, NULL, fixup_addr_size_cells, NULL, NULL,
&address_cells_is_cell, &size_cells_is_cell);
#define node_addr_cells(n) \
(((n)->addr_cells == -1) ? 2 : (n)->addr_cells)
@ -538,7 +564,7 @@ static void check_reg_format(struct check *c, struct node *dt,
"(#address-cells == %d, #size-cells == %d)",
node->fullpath, prop->val.len, addr_cells, size_cells);
}
NODE_CHECK(reg_format, NULL, WARN, &addr_size_cells);
NODE_WARNING(reg_format, NULL, &addr_size_cells);
static void check_ranges_format(struct check *c, struct node *dt,
struct node *node)
@ -579,7 +605,7 @@ static void check_ranges_format(struct check *c, struct node *dt,
p_addr_cells, c_addr_cells, c_size_cells);
}
}
NODE_CHECK(ranges_format, NULL, WARN, &addr_size_cells);
NODE_WARNING(ranges_format, NULL, &addr_size_cells);
/*
* Style checks
@ -606,7 +632,7 @@ static void check_avoid_default_addr_size(struct check *c, struct node *dt,
FAIL(c, "Relying on default #size-cells value for %s",
node->fullpath);
}
NODE_CHECK(avoid_default_addr_size, NULL, WARN, &addr_size_cells);
NODE_WARNING(avoid_default_addr_size, NULL, &addr_size_cells);
static void check_obsolete_chosen_interrupt_controller(struct check *c,
struct node *dt)
@ -623,7 +649,7 @@ static void check_obsolete_chosen_interrupt_controller(struct check *c,
FAIL(c, "/chosen has obsolete \"interrupt-controller\" "
"property");
}
TREE_CHECK(obsolete_chosen_interrupt_controller, NULL, WARN);
TREE_WARNING(obsolete_chosen_interrupt_controller, NULL);
static struct check *check_table[] = {
&duplicate_node_names, &duplicate_property_names,
@ -642,8 +668,71 @@ static struct check *check_table[] = {
&avoid_default_addr_size,
&obsolete_chosen_interrupt_controller,
&always_fail,
};
static void enable_warning_error(struct check *c, bool warn, bool error)
{
int i;
/* Raising level, also raise it for prereqs */
if ((warn && !c->warn) || (error && !c->error))
for (i = 0; i < c->num_prereqs; i++)
enable_warning_error(c->prereq[i], warn, error);
c->warn = c->warn || warn;
c->error = c->error || error;
}
static void disable_warning_error(struct check *c, bool warn, bool error)
{
int i;
/* Lowering level, also lower it for things this is the prereq
* for */
if ((warn && c->warn) || (error && c->error)) {
for (i = 0; i < ARRAY_SIZE(check_table); i++) {
struct check *cc = check_table[i];
int j;
for (j = 0; j < cc->num_prereqs; j++)
if (cc->prereq[j] == c)
disable_warning_error(cc, warn, error);
}
}
c->warn = c->warn && !warn;
c->error = c->error && !error;
}
void parse_checks_option(bool warn, bool error, const char *optarg)
{
int i;
const char *name = optarg;
bool enable = true;
if ((strncmp(optarg, "no-", 3) == 0)
|| (strncmp(optarg, "no_", 3) == 0)) {
name = optarg + 3;
enable = false;
}
for (i = 0; i < ARRAY_SIZE(check_table); i++) {
struct check *c = check_table[i];
if (streq(c->name, name)) {
if (enable)
enable_warning_error(c, warn, error);
else
disable_warning_error(c, warn, error);
return;
}
}
die("Unrecognized check name \"%s\"\n", name);
}
void process_checks(int force, struct boot_info *bi)
{
struct node *dt = bi->dt;
@ -653,7 +742,7 @@ void process_checks(int force, struct boot_info *bi)
for (i = 0; i < ARRAY_SIZE(check_table); i++) {
struct check *c = check_table[i];
if (c->level != IGNORE)
if (c->warn || c->error)
error = error || run_check(c, dt);
}

120
scripts/dtc/data.c
View file

@ -68,40 +68,6 @@ struct data data_copy_mem(const char *mem, int len)
return d;
}
static char get_oct_char(const char *s, int *i)
{
char x[4];
char *endx;
long val;
x[3] = '\0';
strncpy(x, s + *i, 3);
val = strtol(x, &endx, 8);
assert(endx > x);
(*i) += endx - x;
return val;
}
static char get_hex_char(const char *s, int *i)
{
char x[3];
char *endx;
long val;
x[2] = '\0';
strncpy(x, s + *i, 2);
val = strtol(x, &endx, 16);
if (!(endx > x))
die("\\x used with no following hex digits\n");
(*i) += endx - x;
return val;
}
struct data data_copy_escape_string(const char *s, int len)
{
int i = 0;
@ -114,53 +80,10 @@ struct data data_copy_escape_string(const char *s, int len)
while (i < len) {
char c = s[i++];
if (c != '\\') {
q[d.len++] = c;
continue;
}
if (c == '\\')
c = get_escape_char(s, &i);
c = s[i++];
assert(c);
switch (c) {
case 'a':
q[d.len++] = '\a';
break;
case 'b':
q[d.len++] = '\b';
break;
case 't':
q[d.len++] = '\t';
break;
case 'n':
q[d.len++] = '\n';
break;
case 'v':
q[d.len++] = '\v';
break;
case 'f':
q[d.len++] = '\f';
break;
case 'r':
q[d.len++] = '\r';
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
i--; /* need to re-read the first digit as
* part of the octal value */
q[d.len++] = get_oct_char(s, &i);
break;
case 'x':
q[d.len++] = get_hex_char(s, &i);
break;
default:
q[d.len++] = c;
}
q[d.len++] = c;
}
q[d.len++] = '\0';
@ -245,11 +168,33 @@ struct data data_merge(struct data d1, struct data d2)
return d;
}
struct data data_append_cell(struct data d, cell_t word)
struct data data_append_integer(struct data d, uint64_t value, int bits)
{
cell_t beword = cpu_to_fdt32(word);
uint8_t value_8;
uint16_t value_16;
uint32_t value_32;
uint64_t value_64;
return data_append_data(d, &beword, sizeof(beword));
switch (bits) {
case 8:
value_8 = value;
return data_append_data(d, &value_8, 1);
case 16:
value_16 = cpu_to_fdt16(value);
return data_append_data(d, &value_16, 2);
case 32:
value_32 = cpu_to_fdt32(value);
return data_append_data(d, &value_32, 4);
case 64:
value_64 = cpu_to_fdt64(value);
return data_append_data(d, &value_64, 8);
default:
die("Invalid literal size (%d)\n", bits);
}
}
struct data data_append_re(struct data d, const struct fdt_reserve_entry *re)
@ -262,11 +207,14 @@ struct data data_append_re(struct data d, const struct fdt_reserve_entry *re)
return data_append_data(d, &bere, sizeof(bere));
}
struct data data_append_cell(struct data d, cell_t word)
{
return data_append_integer(d, word, sizeof(word) * 8);
}
struct data data_append_addr(struct data d, uint64_t addr)
{
uint64_t beaddr = cpu_to_fdt64(addr);
return data_append_data(d, &beaddr, sizeof(beaddr));
return data_append_integer(d, addr, sizeof(addr) * 8);
}
struct data data_append_byte(struct data d, uint8_t byte)

65
scripts/dtc/dtc-lexer.l
View file

@ -29,6 +29,7 @@ PROPNODECHAR [a-zA-Z0-9,._+*#?@-]
PATHCHAR ({PROPNODECHAR}|[/])
LABEL [a-zA-Z_][a-zA-Z0-9_]*
STRING \"([^\\"]|\\.)*\"
CHAR_LITERAL '([^']|\\')*'
WS [[:space:]]
COMMENT "/*"([^*]|\*+[^*/])*\*+"/"
LINECOMMENT "//".*\n
@ -70,6 +71,27 @@ static int pop_input_file(void);
push_input_file(name);
}
<*>^"#"(line)?{WS}+[0-9]+{WS}+{STRING}({WS}+[0-9]+)? {
char *line, *tmp, *fn;
/* skip text before line # */
line = yytext;
while (!isdigit(*line))
line++;
/* skip digits in line # */
tmp = line;
while (!isspace(*tmp))
tmp++;
/* "NULL"-terminate line # */
*tmp = '\0';
/* start of filename */
fn = strchr(tmp + 1, '"') + 1;
/* strip trailing " from filename */
tmp = strchr(fn, '"');
*tmp = 0;
/* -1 since #line is the number of the next line */
srcpos_set_line(xstrdup(fn), atoi(line) - 1);
}
<*><<EOF>> {
if (!pop_input_file()) {
yyterminate();
@ -96,6 +118,26 @@ static int pop_input_file(void);
return DT_MEMRESERVE;
}
<*>"/bits/" {
DPRINT("Keyword: /bits/\n");
BEGIN_DEFAULT();
return DT_BITS;
}
<*>"/delete-property/" {
DPRINT("Keyword: /delete-property/\n");
DPRINT("<PROPNODENAME>\n");
BEGIN(PROPNODENAME);
return DT_DEL_PROP;
}
<*>"/delete-node/" {
DPRINT("Keyword: /delete-node/\n");
DPRINT("<PROPNODENAME>\n");
BEGIN(PROPNODENAME);
return DT_DEL_NODE;
}
<*>{LABEL}: {
DPRINT("Label: %s\n", yytext);
yylval.labelref = xstrdup(yytext);
@ -103,12 +145,19 @@ static int pop_input_file(void);
return DT_LABEL;
}
<V1>[0-9]+|0[xX][0-9a-fA-F]+ {
<V1>([0-9]+|0[xX][0-9a-fA-F]+)(U|L|UL|LL|ULL)? {
yylval.literal = xstrdup(yytext);
DPRINT("Literal: '%s'\n", yylval.literal);
return DT_LITERAL;
}
<*>{CHAR_LITERAL} {
yytext[yyleng-1] = '\0';
yylval.literal = xstrdup(yytext+1);
DPRINT("Character literal: %s\n", yylval.literal);
return DT_CHAR_LITERAL;
}
<*>\&{LABEL} { /* label reference */
DPRINT("Ref: %s\n", yytext+1);
yylval.labelref = xstrdup(yytext+1);
@ -134,9 +183,10 @@ static int pop_input_file(void);
return ']';
}
<PROPNODENAME>{PROPNODECHAR}+ {
<PROPNODENAME>\\?{PROPNODECHAR}+ {
DPRINT("PropNodeName: %s\n", yytext);
yylval.propnodename = xstrdup(yytext);
yylval.propnodename = xstrdup((yytext[0] == '\\') ?
yytext + 1 : yytext);
BEGIN_DEFAULT();
return DT_PROPNODENAME;
}
@ -150,6 +200,15 @@ static int pop_input_file(void);
<*>{COMMENT}+ /* eat C-style comments */
<*>{LINECOMMENT}+ /* eat C++-style comments */
<*>"<<" { return DT_LSHIFT; };
<*>">>" { return DT_RSHIFT; };
<*>"<=" { return DT_LE; };
<*>">=" { return DT_GE; };
<*>"==" { return DT_EQ; };
<*>"!=" { return DT_NE; };
<*>"&&" { return DT_AND; };
<*>"||" { return DT_OR; };
<*>. {
DPRINT("Char: %c (\\x%02x)\n", yytext[0],
(unsigned)yytext[0]);

489
scripts/dtc/dtc-lexer.lex.c_shipped
View file

@ -1,5 +1,6 @@
#line 2 "dtc-lexer.lex.c"
#line 3 "scripts/dtc/dtc-lexer.lex.c_shipped"
#line 4 "dtc-lexer.lex.c"
#define YY_INT_ALIGNED short int
@ -53,7 +54,6 @@ typedef int flex_int32_t;
typedef unsigned char flex_uint8_t;
typedef unsigned short int flex_uint16_t;
typedef unsigned int flex_uint32_t;
#endif /* ! C99 */
/* Limits of integral types. */
#ifndef INT8_MIN
@ -84,6 +84,8 @@ typedef unsigned int flex_uint32_t;
#define UINT32_MAX (4294967295U)
#endif
#endif /* ! C99 */
#endif /* ! FLEXINT_H */
#ifdef __cplusplus
@ -140,7 +142,15 @@ typedef unsigned int flex_uint32_t;
/* Size of default input buffer. */
#ifndef YY_BUF_SIZE
#ifdef __ia64__
/* On IA-64, the buffer size is 16k, not 8k.
* Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
* Ditto for the __ia64__ case accordingly.
*/
#define YY_BUF_SIZE 32768
#else
#define YY_BUF_SIZE 16384
#endif /* __ia64__ */
#endif
/* The state buf must be large enough to hold one state per character in the main buffer.
@ -362,8 +372,8 @@ static void yy_fatal_error (yyconst char msg[] );
*yy_cp = '\0'; \
(yy_c_buf_p) = yy_cp;
#define YY_NUM_RULES 17
#define YY_END_OF_BUFFER 18
#define YY_NUM_RULES 30
#define YY_END_OF_BUFFER 31
/* This struct is not used in this scanner,
but its presence is necessary. */
struct yy_trans_info
@ -371,19 +381,25 @@ struct yy_trans_info
flex_int32_t yy_verify;
flex_int32_t yy_nxt;
};
static yyconst flex_int16_t yy_accept[94] =
static yyconst flex_int16_t yy_accept[161] =
{ 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
18, 16, 13, 13, 16, 16, 16, 16, 16, 16,
16, 10, 11, 11, 6, 6, 13, 0, 2, 0,
7, 0, 0, 0, 0, 0, 0, 0, 5, 0,
9, 9, 11, 11, 6, 0, 7, 0, 0, 0,
0, 15, 0, 0, 0, 0, 6, 0, 14, 0,
0, 0, 0, 0, 8, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 3, 12,
0, 0, 0, 0, 0, 0, 0, 0, 1, 0,
0, 4, 0
31, 29, 18, 18, 29, 29, 29, 29, 29, 29,
29, 29, 29, 29, 29, 29, 29, 29, 15, 16,
16, 29, 16, 10, 10, 18, 26, 0, 3, 0,
27, 12, 0, 0, 11, 0, 0, 0, 0, 0,
0, 0, 21, 23, 25, 24, 22, 0, 9, 28,
0, 0, 0, 14, 14, 16, 16, 16, 10, 10,
10, 0, 12, 0, 11, 0, 0, 0, 20, 0,
0, 0, 0, 0, 0, 0, 0, 16, 10, 10,
10, 0, 19, 0, 0, 0, 0, 0, 0, 0,
0, 0, 16, 13, 0, 0, 0, 0, 0, 0,
0, 0, 0, 16, 6, 0, 0, 0, 0, 0,
0, 2, 0, 0, 0, 0, 0, 0, 0, 0,
4, 17, 0, 0, 2, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 1, 0, 0,
0, 0, 5, 8, 0, 0, 0, 0, 7, 0
} ;
static yyconst flex_int32_t yy_ec[256] =
@ -391,17 +407,17 @@ static yyconst flex_int32_t yy_ec[256] =
1, 1, 1, 1, 1, 1, 1, 1, 2, 3,
2, 2, 2, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 2, 1, 4, 5, 1, 1, 6, 1, 1,
1, 7, 5, 5, 8, 5, 9, 10, 11, 12,
12, 12, 12, 12, 12, 12, 12, 13, 1, 1,
1, 1, 5, 5, 14, 14, 14, 14, 14, 14,
15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
15, 15, 15, 15, 15, 15, 15, 16, 15, 15,
1, 17, 18, 1, 15, 1, 14, 19, 20, 21,
1, 2, 4, 5, 6, 1, 1, 7, 8, 1,
1, 9, 10, 10, 11, 10, 12, 13, 14, 15,
15, 15, 15, 15, 15, 15, 15, 16, 1, 17,
18, 19, 10, 10, 20, 20, 20, 20, 20, 20,
21, 21, 21, 21, 21, 22, 21, 21, 21, 21,
21, 21, 21, 21, 23, 21, 21, 24, 21, 21,
1, 25, 26, 1, 21, 1, 20, 27, 28, 29,
22, 14, 15, 15, 23, 15, 15, 24, 25, 26,
15, 15, 15, 27, 28, 29, 30, 31, 15, 16,
15, 15, 32, 1, 33, 1, 1, 1, 1, 1,
30, 20, 21, 21, 31, 21, 21, 32, 33, 34,
35, 36, 21, 37, 38, 39, 40, 41, 21, 24,
42, 21, 43, 44, 45, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
@ -418,112 +434,163 @@ static yyconst flex_int32_t yy_ec[256] =
1, 1, 1, 1, 1
} ;
static yyconst flex_int32_t yy_meta[34] =
static yyconst flex_int32_t yy_meta[46] =
{ 0,
1, 1, 1, 1, 2, 1, 2, 2, 3, 4,
4, 4, 5, 6, 7, 7, 1, 1, 6, 6,
6, 6, 7, 7, 7, 7, 7, 7, 7, 7,
7, 8, 1
1, 1, 1, 1, 1, 2, 3, 1, 2, 2,
2, 4, 5, 5, 5, 6, 1, 1, 1, 7,
8, 8, 8, 8, 1, 1, 7, 7, 7, 7,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 3, 1, 1
} ;
static yyconst flex_int16_t yy_base[106] =
static yyconst flex_int16_t yy_base[175] =
{ 0,
0, 0, 237, 236, 25, 0, 47, 0, 30, 71,
244, 247, 82, 84, 84, 211, 95, 229, 218, 0,
111, 247, 0, 84, 83, 95, 106, 86, 247, 237,
0, 230, 231, 234, 207, 209, 212, 220, 247, 206,
247, 218, 0, 106, 116, 0, 0, 0, 223, 89,
226, 219, 199, 206, 200, 204, 0, 190, 213, 212,
202, 91, 178, 161, 247, 172, 144, 150, 140, 130,
140, 124, 128, 120, 138, 137, 123, 122, 247, 247,
134, 114, 132, 86, 135, 125, 90, 136, 247, 97,
29, 247, 247, 153, 156, 161, 165, 170, 176, 180,
0, 388, 381, 40, 41, 386, 71, 385, 34, 44,
390, 395, 60, 62, 371, 112, 111, 111, 111, 104,
370, 106, 371, 342, 124, 119, 0, 144, 395, 0,
123, 0, 159, 153, 165, 167, 395, 130, 395, 382,
395, 0, 372, 122, 395, 157, 374, 379, 350, 21,
346, 349, 395, 395, 395, 395, 395, 362, 395, 395,
181, 346, 342, 395, 359, 0, 191, 343, 190, 351,
350, 0, 0, 0, 173, 362, 177, 367, 357, 329,
335, 328, 337, 331, 206, 329, 334, 327, 395, 338,
170, 314, 346, 345, 318, 325, 343, 158, 316, 212,
187, 195, 200, 205, 212
322, 319, 320, 395, 340, 336, 308, 305, 314, 304,
295, 138, 208, 220, 395, 292, 305, 265, 264, 254,
201, 222, 285, 275, 273, 270, 236, 235, 225, 115,
395, 395, 252, 216, 216, 217, 214, 230, 209, 220,
213, 239, 211, 217, 216, 209, 229, 395, 240, 225,
206, 169, 395, 395, 116, 106, 99, 54, 395, 395,
254, 260, 268, 272, 276, 282, 289, 293, 301, 309,
313, 319, 327, 335
} ;
static yyconst flex_int16_t yy_def[106] =
static yyconst flex_int16_t yy_def[175] =
{ 0,
93, 1, 1, 1, 1, 5, 93, 7, 1, 1,
93, 93, 93, 93, 94, 95, 93, 96, 17, 97,
96, 93, 98, 99, 93, 93, 93, 94, 93, 94,
100, 93, 101, 102, 93, 93, 93, 96, 93, 93,
93, 96, 98, 99, 93, 103, 100, 104, 101, 101,
102, 93, 93, 93, 93, 93, 103, 104, 93, 93,
93, 93, 93, 93, 93, 93, 93, 93, 93, 93,
93, 93, 93, 93, 93, 93, 93, 93, 93, 93,
93, 93, 93, 93, 93, 105, 93, 105, 93, 105,
93, 93, 0, 93, 93, 93, 93, 93, 93, 93,
160, 1, 1, 1, 1, 5, 160, 7, 1, 1,
160, 160, 160, 160, 160, 161, 162, 163, 160, 160,
160, 160, 164, 160, 160, 160, 165, 164, 160, 166,
167, 166, 166, 160, 160, 160, 160, 161, 160, 161,
160, 168, 160, 163, 160, 163, 169, 170, 160, 160,
160, 160, 160, 160, 160, 160, 160, 164, 160, 160,
160, 160, 160, 160, 164, 166, 167, 166, 160, 160,
160, 171, 168, 172, 163, 169, 169, 170, 160, 160,
160, 160, 160, 160, 160, 160, 160, 166, 160, 160,
171, 172, 160, 160, 160, 160, 160, 160, 160, 160,
93, 93, 93, 93, 93
160, 160, 166, 160, 160, 160, 160, 160, 160, 160,
160, 173, 160, 166, 160, 160, 160, 160, 160, 160,
173, 160, 173, 160, 160, 160, 160, 160, 160, 160,
160, 160, 160, 160, 160, 160, 160, 160, 160, 160,
160, 160, 174, 160, 160, 160, 174, 160, 174, 160,
160, 160, 160, 160, 160, 160, 160, 160, 160, 0,
160, 160, 160, 160, 160, 160, 160, 160, 160, 160,
160, 160, 160, 160
} ;
static yyconst flex_int16_t yy_nxt[281] =
static yyconst flex_int16_t yy_nxt[441] =
{ 0,
12, 13, 14, 15, 12, 16, 12, 12, 17, 12,
12, 12, 12, 18, 18, 18, 12, 12, 18, 18,
18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
18, 12, 12, 19, 20, 20, 20, 92, 21, 25,
26, 26, 22, 21, 21, 21, 21, 12, 13, 14,
15, 23, 16, 23, 23, 19, 23, 23, 23, 12,
24, 24, 24, 12, 12, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 12, 12,
25, 26, 26, 27, 27, 27, 27, 29, 43, 29,
43, 43, 45, 45, 45, 50, 39, 59, 46, 93,
12, 13, 14, 15, 16, 12, 17, 18, 12, 12,
12, 19, 12, 12, 12, 12, 20, 21, 22, 23,
23, 23, 23, 23, 12, 12, 23, 23, 23, 23,
23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
23, 23, 12, 24, 12, 25, 34, 35, 35, 25,
81, 26, 26, 27, 27, 27, 34, 35, 35, 82,
28, 36, 36, 36, 36, 159, 29, 28, 28, 28,
28, 12, 13, 14, 15, 16, 30, 17, 18, 30,
30, 30, 26, 30, 30, 30, 12, 20, 21, 22,
31, 31, 31, 31, 31, 32, 12, 31, 31, 31,
30, 33, 30, 34, 45, 45, 45, 27, 27, 68,
43, 91, 43, 43, 69, 35, 87, 36, 39, 37,
42, 42, 42, 39, 42, 45, 45, 45, 89, 42,
42, 42, 42, 85, 85, 86, 85, 85, 86, 89,
84, 90, 83, 82, 81, 80, 79, 78, 77, 76,
75, 74, 90, 28, 28, 28, 28, 28, 28, 28,
28, 31, 31, 31, 38, 38, 38, 38, 41, 73,
41, 43, 72, 43, 71, 43, 43, 44, 33, 44,
44, 44, 44, 47, 69, 47, 47, 49, 49, 49,
49, 49, 49, 49, 49, 51, 51, 51, 51, 51,
31, 31, 31, 31, 31, 31, 31, 31, 31, 31,
31, 31, 31, 12, 24, 12, 39, 41, 45, 47,
53, 54, 48, 56, 57, 61, 61, 47, 66, 45,
48, 66, 66, 66, 39, 46, 40, 49, 59, 50,
158, 51, 122, 52, 157, 49, 46, 50, 136, 63,
137, 52, 156, 43, 40, 62, 65, 65, 65, 59,
61, 61, 123, 65, 75, 69, 69, 69, 36, 36,
65, 65, 65, 65, 70, 71, 72, 69, 69, 69,
45, 46, 61, 61, 109, 77, 70, 71, 93, 110,
68, 70, 71, 85, 85, 85, 66, 46, 155, 66,
51, 51, 51, 57, 70, 57, 58, 58, 58, 67,
58, 58, 88, 88, 88, 88, 88, 88, 88, 88,
34, 66, 65, 64, 63, 62, 61, 60, 52, 50,
39, 56, 39, 55, 54, 53, 52, 50, 48, 93,
40, 39, 32, 93, 19, 19, 11, 93, 93, 93,
93, 93, 93, 93, 93, 93, 93, 93, 93, 93,
93, 93, 93, 93, 93, 93, 93, 93, 93, 93,
93, 93, 93, 93, 93, 93, 93, 93, 93, 93
66, 66, 69, 69, 69, 122, 59, 100, 100, 61,
61, 70, 71, 100, 100, 148, 112, 154, 85, 85,
85, 61, 61, 129, 129, 123, 129, 129, 135, 135,
135, 142, 142, 148, 143, 149, 153, 135, 135, 135,
142, 142, 160, 143, 152, 151, 150, 146, 145, 144,
141, 140, 139, 149, 38, 38, 38, 38, 38, 38,
38, 38, 42, 138, 134, 133, 42, 42, 44, 44,
44, 44, 44, 44, 44, 44, 58, 58, 58, 58,
64, 132, 64, 66, 131, 130, 66, 160, 66, 66,
67, 128, 127, 67, 67, 67, 67, 73, 126, 73,
73, 76, 76, 76, 76, 76, 76, 76, 76, 78,
78, 78, 78, 78, 78, 78, 78, 91, 125, 91,
92, 124, 92, 92, 120, 92, 92, 121, 121, 121,
121, 121, 121, 121, 121, 147, 147, 147, 147, 147,
147, 147, 147, 119, 118, 117, 116, 115, 47, 114,
110, 113, 111, 108, 107, 106, 48, 105, 104, 89,
103, 102, 101, 99, 98, 97, 96, 95, 94, 79,
77, 90, 89, 88, 59, 87, 86, 59, 84, 83,
80, 79, 77, 74, 160, 60, 59, 55, 37, 160,
33, 25, 26, 25, 11, 160, 160, 160, 160, 160,
160, 160, 160, 160, 160, 160, 160, 160, 160, 160,
160, 160, 160, 160, 160, 160, 160, 160, 160, 160,
160, 160, 160, 160, 160, 160, 160, 160, 160, 160,
160, 160, 160, 160, 160, 160, 160, 160, 160, 160
} ;
static yyconst flex_int16_t yy_chk[281] =
static yyconst flex_int16_t yy_chk[441] =
{ 0,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 5, 5, 5, 5, 91, 5, 9,
9, 9, 5, 5, 5, 5, 5, 7, 7, 7,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 4, 9, 9, 9, 10,
50, 4, 5, 5, 5, 5, 10, 10, 10, 50,
5, 13, 13, 14, 14, 158, 5, 5, 5, 5,
5, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
10, 10, 10, 13, 13, 14, 14, 15, 24, 28,
24, 24, 25, 25, 25, 50, 24, 50, 25, 90,
15, 17, 28, 17, 26, 26, 26, 27, 27, 62,
44, 87, 44, 44, 62, 17, 84, 17, 44, 17,
21, 21, 21, 21, 21, 45, 45, 45, 86, 21,
21, 21, 21, 83, 83, 83, 85, 85, 85, 88,
82, 86, 81, 78, 77, 76, 75, 74, 73, 72,
71, 70, 88, 94, 94, 94, 94, 94, 94, 94,
94, 95, 95, 95, 96, 96, 96, 96, 97, 69,
97, 98, 68, 98, 67, 98, 98, 99, 66, 99,
99, 99, 99, 100, 64, 100, 100, 101, 101, 101,
101, 101, 101, 101, 101, 102, 102, 102, 102, 102,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 16, 17, 18, 19,
20, 20, 19, 22, 22, 25, 25, 26, 31, 44,
26, 31, 31, 31, 38, 18, 16, 19, 31, 19,
157, 19, 112, 19, 156, 26, 44, 26, 130, 26,
130, 26, 155, 17, 38, 25, 28, 28, 28, 28,
33, 33, 112, 28, 46, 34, 34, 34, 36, 36,
28, 28, 28, 28, 34, 34, 34, 35, 35, 35,
75, 46, 61, 61, 98, 77, 35, 35, 77, 98,
33, 91, 91, 61, 61, 61, 67, 75, 152, 67,
102, 102, 102, 103, 63, 103, 104, 104, 104, 61,
104, 104, 105, 105, 105, 105, 105, 105, 105, 105,
60, 59, 58, 56, 55, 54, 53, 52, 51, 49,
42, 40, 38, 37, 36, 35, 34, 33, 32, 30,
19, 18, 16, 11, 4, 3, 93, 93, 93, 93,
93, 93, 93, 93, 93, 93, 93, 93, 93, 93,
93, 93, 93, 93, 93, 93, 93, 93, 93, 93,
93, 93, 93, 93, 93, 93, 93, 93, 93, 93
67, 67, 69, 69, 69, 121, 67, 85, 85, 113,
113, 69, 69, 100, 100, 143, 100, 151, 85, 85,
85, 114, 114, 122, 122, 121, 129, 129, 135, 135,
135, 138, 138, 147, 138, 143, 150, 129, 129, 129,
142, 142, 149, 142, 146, 145, 144, 141, 140, 139,
137, 136, 134, 147, 161, 161, 161, 161, 161, 161,
161, 161, 162, 133, 128, 127, 162, 162, 163, 163,
163, 163, 163, 163, 163, 163, 164, 164, 164, 164,
165, 126, 165, 166, 125, 124, 166, 123, 166, 166,
167, 120, 119, 167, 167, 167, 167, 168, 118, 168,
168, 169, 169, 169, 169, 169, 169, 169, 169, 170,
170, 170, 170, 170, 170, 170, 170, 171, 117, 171,
172, 116, 172, 172, 111, 172, 172, 173, 173, 173,
173, 173, 173, 173, 173, 174, 174, 174, 174, 174,
174, 174, 174, 110, 109, 108, 107, 106, 105, 103,
102, 101, 99, 97, 96, 95, 94, 93, 92, 90,
88, 87, 86, 84, 83, 82, 81, 80, 79, 78,
76, 71, 70, 68, 65, 63, 62, 58, 52, 51,
49, 48, 47, 43, 40, 24, 23, 21, 15, 11,
8, 6, 3, 2, 160, 160, 160, 160, 160, 160,
160, 160, 160, 160, 160, 160, 160, 160, 160, 160,
160, 160, 160, 160, 160, 160, 160, 160, 160, 160,
160, 160, 160, 160, 160, 160, 160, 160, 160, 160,
160, 160, 160, 160, 160, 160, 160, 160, 160, 160
} ;
static yy_state_type yy_last_accepting_state;
@ -540,6 +607,7 @@ int yy_flex_debug = 0;
#define YY_MORE_ADJ 0
#define YY_RESTORE_YY_MORE_OFFSET
char *yytext;
#line 1 "dtc-lexer.l"
/*
* (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
*
@ -561,6 +629,10 @@ char *yytext;
*/
#define YY_NO_INPUT 1
#line 38 "dtc-lexer.l"
#include "dtc.h"
#include "srcpos.h"
#include "dtc-parser.tab.h"
@ -588,6 +660,7 @@ static int dts_version = 1;
static void push_input_file(const char *filename);
static int pop_input_file(void);
#line 664 "dtc-lexer.lex.c"
#define INITIAL 0
#define INCLUDE 1
@ -670,7 +743,12 @@ static int input (void );
/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#ifdef __ia64__
/* On IA-64, the buffer size is 16k, not 8k */
#define YY_READ_BUF_SIZE 16384
#else
#define YY_READ_BUF_SIZE 8192
#endif /* __ia64__ */
#endif
/* Copy whatever the last rule matched to the standard output. */
@ -689,7 +767,7 @@ static int input (void );
if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
{ \
int c = '*'; \
unsigned n; \
size_t n; \
for ( n = 0; n < max_size && \
(c = getc( yyin )) != EOF && c != '\n'; ++n ) \
buf[n] = (char) c; \
@ -761,6 +839,9 @@ extern int yylex (void);
#endif
#define YY_RULE_SETUP \
if ( yyleng > 0 ) \
YY_CURRENT_BUFFER_LVALUE->yy_at_bol = \
(yytext[yyleng - 1] == '\n'); \
YY_USER_ACTION
/** The main scanner function which does all the work.
@ -771,6 +852,10 @@ YY_DECL
register char *yy_cp, *yy_bp;
register int yy_act;
#line 67 "dtc-lexer.l"
#line 858 "dtc-lexer.lex.c"
if ( !(yy_init) )
{
(yy_init) = 1;
@ -810,6 +895,7 @@ YY_DECL
yy_bp = yy_cp;
yy_current_state = (yy_start);
yy_current_state += YY_AT_BOL();
yy_match:
do
{
@ -822,13 +908,13 @@ yy_match:
while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
{
yy_current_state = (int) yy_def[yy_current_state];
if ( yy_current_state >= 94 )
if ( yy_current_state >= 161 )
yy_c = yy_meta[(unsigned int) yy_c];
}
yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
++yy_cp;
}
while ( yy_current_state != 93 );
while ( yy_current_state != 160 );
yy_cp = (yy_last_accepting_cpos);
yy_current_state = (yy_last_accepting_state);
@ -851,26 +937,54 @@ do_action: /* This label is used only to access EOF actions. */
case 1:
/* rule 1 can match eol */
YY_RULE_SETUP
#line 68 "dtc-lexer.l"
{
char *name = strchr(yytext, '\"') + 1;
yytext[yyleng-1] = '\0';
push_input_file(name);
}
YY_BREAK
case 2:
/* rule 2 can match eol */
YY_RULE_SETUP
#line 74 "dtc-lexer.l"
{
char *line, *tmp, *fn;
/* skip text before line # */
line = yytext;
while (!isdigit(*line))
line++;
/* skip digits in line # */
tmp = line;
while (!isspace(*tmp))
tmp++;
/* "NULL"-terminate line # */
*tmp = '\0';
/* start of filename */
fn = strchr(tmp + 1, '"') + 1;
/* strip trailing " from filename */
tmp = strchr(fn, '"');
*tmp = 0;
/* -1 since #line is the number of the next line */
srcpos_set_line(xstrdup(fn), atoi(line) - 1);
}
YY_BREAK
case YY_STATE_EOF(INITIAL):
case YY_STATE_EOF(INCLUDE):
case YY_STATE_EOF(BYTESTRING):
case YY_STATE_EOF(PROPNODENAME):
case YY_STATE_EOF(V1):
#line 95 "dtc-lexer.l"
{
if (!pop_input_file()) {
yyterminate();
}
}
YY_BREAK
case 2:
/* rule 2 can match eol */
case 3:
/* rule 3 can match eol */
YY_RULE_SETUP
#line 101 "dtc-lexer.l"
{
DPRINT("String: %s\n", yytext);
yylval.data = data_copy_escape_string(yytext+1,
@ -878,8 +992,9 @@ YY_RULE_SETUP
return DT_STRING;
}
YY_BREAK
case 3:
case 4:
YY_RULE_SETUP
#line 108 "dtc-lexer.l"
{
DPRINT("Keyword: /dts-v1/\n");
dts_version = 1;
@ -887,16 +1002,47 @@ YY_RULE_SETUP
return DT_V1;
}
YY_BREAK
case 4:
case 5:
YY_RULE_SETUP
#line 115 "dtc-lexer.l"
{
DPRINT("Keyword: /memreserve/\n");
BEGIN_DEFAULT();
return DT_MEMRESERVE;
}
YY_BREAK
case 5:
case 6:
YY_RULE_SETUP
#line 121 "dtc-lexer.l"
{
DPRINT("Keyword: /bits/\n");
BEGIN_DEFAULT();
return DT_BITS;
}
YY_BREAK
case 7:
YY_RULE_SETUP
#line 127 "dtc-lexer.l"
{
DPRINT("Keyword: /delete-property/\n");
DPRINT("<PROPNODENAME>\n");
BEGIN(PROPNODENAME);
return DT_DEL_PROP;
}
YY_BREAK
case 8:
YY_RULE_SETUP
#line 134 "dtc-lexer.l"
{
DPRINT("Keyword: /delete-node/\n");
DPRINT("<PROPNODENAME>\n");
BEGIN(PROPNODENAME);
return DT_DEL_NODE;
}
YY_BREAK
case 9:
YY_RULE_SETUP
#line 141 "dtc-lexer.l"
{
DPRINT("Label: %s\n", yytext);
yylval.labelref = xstrdup(yytext);
@ -904,24 +1050,38 @@ YY_RULE_SETUP
return DT_LABEL;
}
YY_BREAK
case 6:
case 10:
YY_RULE_SETUP
#line 148 "dtc-lexer.l"
{
yylval.literal = xstrdup(yytext);
DPRINT("Literal: '%s'\n", yylval.literal);
return DT_LITERAL;
}
YY_BREAK
case 7:
case 11:
/* rule 11 can match eol */
YY_RULE_SETUP
#line 154 "dtc-lexer.l"
{
yytext[yyleng-1] = '\0';
yylval.literal = xstrdup(yytext+1);
DPRINT("Character literal: %s\n", yylval.literal);
return DT_CHAR_LITERAL;
}
YY_BREAK
case 12:
YY_RULE_SETUP
#line 161 "dtc-lexer.l"
{ /* label reference */
DPRINT("Ref: %s\n", yytext+1);
yylval.labelref = xstrdup(yytext+1);
return DT_REF;
}
YY_BREAK
case 8:
case 13:
YY_RULE_SETUP
#line 167 "dtc-lexer.l"
{ /* new-style path reference */
yytext[yyleng-1] = '\0';
DPRINT("Ref: %s\n", yytext+2);
@ -929,55 +1089,104 @@ YY_RULE_SETUP
return DT_REF;
}
YY_BREAK
case 9:
case 14:
YY_RULE_SETUP
#line 174 "dtc-lexer.l"
{
yylval.byte = strtol(yytext, NULL, 16);
DPRINT("Byte: %02x\n", (int)yylval.byte);
return DT_BYTE;
}
YY_BREAK
case 10:
case 15:
YY_RULE_SETUP
#line 180 "dtc-lexer.l"
{
DPRINT("/BYTESTRING\n");
BEGIN_DEFAULT();
return ']';
}
YY_BREAK
case 11:
case 16:
YY_RULE_SETUP
#line 186 "dtc-lexer.l"
{
DPRINT("PropNodeName: %s\n", yytext);
yylval.propnodename = xstrdup(yytext);
yylval.propnodename = xstrdup((yytext[0] == '\\') ?
yytext + 1 : yytext);
BEGIN_DEFAULT();
return DT_PROPNODENAME;
}
YY_BREAK
case 12:
case 17:
YY_RULE_SETUP
#line 194 "dtc-lexer.l"
{
DPRINT("Binary Include\n");
return DT_INCBIN;
}
YY_BREAK
case 13:
/* rule 13 can match eol */
case 18:
/* rule 18 can match eol */
YY_RULE_SETUP
#line 199 "dtc-lexer.l"
/* eat whitespace */
YY_BREAK
case 14:
/* rule 14 can match eol */
case 19:
/* rule 19 can match eol */
YY_RULE_SETUP
#line 200 "dtc-lexer.l"
/* eat C-style comments */
YY_BREAK
case 15:
/* rule 15 can match eol */
case 20:
/* rule 20 can match eol */
YY_RULE_SETUP
#line 201 "dtc-lexer.l"
/* eat C++-style comments */
YY_BREAK
case 16:
case 21:
YY_RULE_SETUP
#line 203 "dtc-lexer.l"
{ return DT_LSHIFT; };
YY_BREAK
case 22:
YY_RULE_SETUP
#line 204 "dtc-lexer.l"
{ return DT_RSHIFT; };
YY_BREAK
case 23:
YY_RULE_SETUP
#line 205 "dtc-lexer.l"
{ return DT_LE; };
YY_BREAK
case 24:
YY_RULE_SETUP
#line 206 "dtc-lexer.l"
{ return DT_GE; };
YY_BREAK
case 25:
YY_RULE_SETUP
#line 207 "dtc-lexer.l"
{ return DT_EQ; };
YY_BREAK
case 26:
YY_RULE_SETUP
#line 208 "dtc-lexer.l"
{ return DT_NE; };
YY_BREAK
case 27:
YY_RULE_SETUP
#line 209 "dtc-lexer.l"
{ return DT_AND; };
YY_BREAK
case 28:
YY_RULE_SETUP
#line 210 "dtc-lexer.l"
{ return DT_OR; };
YY_BREAK
case 29:
YY_RULE_SETUP
#line 212 "dtc-lexer.l"
{
DPRINT("Char: %c (\\x%02x)\n", yytext[0],
(unsigned)yytext[0]);
@ -993,10 +1202,12 @@ YY_RULE_SETUP
return yytext[0];
}
YY_BREAK
case 17:
case 30:
YY_RULE_SETUP
#line 227 "dtc-lexer.l"
ECHO;
YY_BREAK
#line 1211 "dtc-lexer.lex.c"
case YY_END_OF_BUFFER:
{
@ -1275,6 +1486,7 @@ static int yy_get_next_buffer (void)
register char *yy_cp;
yy_current_state = (yy_start);
yy_current_state += YY_AT_BOL();
for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
{
@ -1287,7 +1499,7 @@ static int yy_get_next_buffer (void)
while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
{
yy_current_state = (int) yy_def[yy_current_state];
if ( yy_current_state >= 94 )
if ( yy_current_state >= 161 )
yy_c = yy_meta[(unsigned int) yy_c];
}
yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
@ -1315,11 +1527,11 @@ static int yy_get_next_buffer (void)
while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
{
yy_current_state = (int) yy_def[yy_current_state];
if ( yy_current_state >= 94 )
if ( yy_current_state >= 161 )
yy_c = yy_meta[(unsigned int) yy_c];
}
yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
yy_is_jam = (yy_current_state == 93);
yy_is_jam = (yy_current_state == 160);
return yy_is_jam ? 0 : yy_current_state;
}
@ -1394,6 +1606,8 @@ static int yy_get_next_buffer (void)
*(yy_c_buf_p) = '\0'; /* preserve yytext */
(yy_hold_char) = *++(yy_c_buf_p);
YY_CURRENT_BUFFER_LVALUE->yy_at_bol = (c == '\n');
return c;
}
#endif /* ifndef YY_NO_INPUT */
@ -1712,8 +1926,8 @@ YY_BUFFER_STATE yy_scan_string (yyconst char * yystr )
/** Setup the input buffer state to scan the given bytes. The next call to yylex() will
* scan from a @e copy of @a bytes.
* @param bytes the byte buffer to scan
* @param len the number of bytes in the buffer pointed to by @a bytes.
* @param yybytes the byte buffer to scan
* @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes.
*
* @return the newly allocated buffer state object.
*/
@ -1952,6 +2166,10 @@ void yyfree (void * ptr )
#define YYTABLES_NAME "yytables"
#line 227 "dtc-lexer.l"
static void push_input_file(const char *filename)
{
assert(filename);
@ -1963,6 +2181,7 @@ static void push_input_file(const char *filename)
yypush_buffer_state(yy_create_buffer(yyin,YY_BUF_SIZE));
}
static int pop_input_file(void)
{
if (srcfile_pop() == 0)

790
scripts/dtc/dtc-parser.tab.c_shipped
View file

File diff suppressed because it is too large Load diff

47
scripts/dtc/dtc-parser.tab.h_shipped
View file

@ -1,9 +1,10 @@
/* A Bison parser, made by GNU Bison 2.4.3. */
/* A Bison parser, made by GNU Bison 2.4.1. */
/* Skeleton interface for Bison's Yacc-like parsers in C
Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
2009, 2010 Free Software Foundation, Inc.
Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -40,14 +41,26 @@
enum yytokentype {
DT_V1 = 258,
DT_MEMRESERVE = 259,
DT_PROPNODENAME = 260,
DT_LITERAL = 261,
DT_BASE = 262,
DT_BYTE = 263,
DT_STRING = 264,
DT_LABEL = 265,
DT_REF = 266,
DT_INCBIN = 267
DT_LSHIFT = 260,
DT_RSHIFT = 261,
DT_LE = 262,
DT_GE = 263,
DT_EQ = 264,
DT_NE = 265,
DT_AND = 266,
DT_OR = 267,
DT_BITS = 268,
DT_DEL_PROP = 269,
DT_DEL_NODE = 270,
DT_PROPNODENAME = 271,
DT_LITERAL = 272,
DT_CHAR_LITERAL = 273,
DT_BASE = 274,
DT_BYTE = 275,
DT_STRING = 276,
DT_LABEL = 277,
DT_REF = 278,
DT_INCBIN = 279
};
#endif
@ -57,6 +70,8 @@
typedef union YYSTYPE
{
/* Line 1676 of yacc.c */
#line 40 "dtc-parser.y"
char *propnodename;
char *literal;
@ -65,16 +80,22 @@ typedef union YYSTYPE
uint8_t byte;
struct data data;
uint64_t addr;
cell_t cell;
struct {
struct data data;
int bits;
} array;
struct property *prop;
struct property *proplist;
struct node *node;
struct node *nodelist;
struct reserve_info *re;
uint64_t integer;
/* Line 1676 of yacc.c */
#line 99 "dtc-parser.tab.h"
} YYSTYPE;
# define YYSTYPE_IS_TRIVIAL 1
# define yystype YYSTYPE /* obsolescent; will be withdrawn */

249
scripts/dtc/dtc-parser.y
View file

@ -34,6 +34,7 @@ extern struct boot_info *the_boot_info;
extern int treesource_error;
static unsigned long long eval_literal(const char *s, int base, int bits);
static unsigned char eval_char_literal(const char *s);
%}
%union {
@ -44,19 +45,28 @@ static unsigned long long eval_literal(const char *s, int base, int bits);
uint8_t byte;
struct data data;
uint64_t addr;
cell_t cell;
struct {
struct data data;
int bits;
} array;
struct property *prop;
struct property *proplist;
struct node *node;
struct node *nodelist;
struct reserve_info *re;
uint64_t integer;
}
%token DT_V1
%token DT_MEMRESERVE
%token DT_LSHIFT DT_RSHIFT DT_LE DT_GE DT_EQ DT_NE DT_AND DT_OR
%token DT_BITS
%token DT_DEL_PROP
%token DT_DEL_NODE
%token <propnodename> DT_PROPNODENAME
%token <literal> DT_LITERAL
%token <literal> DT_CHAR_LITERAL
%token <cbase> DT_BASE
%token <byte> DT_BYTE
%token <data> DT_STRING
@ -68,9 +78,7 @@ static unsigned long long eval_literal(const char *s, int base, int bits);
%type <data> propdataprefix
%type <re> memreserve
%type <re> memreserves
%type <addr> addr
%type <data> celllist
%type <cell> cellval
%type <array> arrayprefix
%type <data> bytestring
%type <prop> propdef
%type <proplist> proplist
@ -80,6 +88,21 @@ static unsigned long long eval_literal(const char *s, int base, int bits);
%type <node> subnode
%type <nodelist> subnodes
%type <integer> integer_prim
%type <integer> integer_unary
%type <integer> integer_mul
%type <integer> integer_add
%type <integer> integer_shift
%type <integer> integer_rela
%type <integer> integer_eq
%type <integer> integer_bitand
%type <integer> integer_bitxor
%type <integer> integer_bitor
%type <integer> integer_and
%type <integer> integer_or
%type <integer> integer_trinary
%type <integer> integer_expr
%%
sourcefile:
@ -102,7 +125,7 @@ memreserves:
;
memreserve:
DT_MEMRESERVE addr addr ';'
DT_MEMRESERVE integer_prim integer_prim ';'
{
$$ = build_reserve_entry($2, $3);
}
@ -113,13 +136,6 @@ memreserve:
}
;
addr:
DT_LITERAL
{
$$ = eval_literal($1, 0, 64);
}
;
devicetree:
'/' nodedef
{
@ -139,6 +155,17 @@ devicetree:
print_error("label or path, '%s', not found", $2);
$$ = $1;
}
| devicetree DT_DEL_NODE DT_REF ';'
{
struct node *target = get_node_by_ref($1, $3);
if (!target)
print_error("label or path, '%s', not found", $3);
else
delete_node(target);
$$ = $1;
}
;
nodedef:
@ -168,6 +195,10 @@ propdef:
{
$$ = build_property($1, empty_data);
}
| DT_DEL_PROP DT_PROPNODENAME ';'
{
$$ = build_property_delete($2);
}
| DT_LABEL propdef
{
add_label(&$2->labels, $1);
@ -180,9 +211,9 @@ propdata:
{
$$ = data_merge($1, $2);
}
| propdataprefix '<' celllist '>'
| propdataprefix arrayprefix '>'
{
$$ = data_merge($1, $3);
$$ = data_merge($1, $2.data);
}
| propdataprefix '[' bytestring ']'
{
@ -192,7 +223,7 @@ propdata:
{
$$ = data_add_marker($1, REF_PATH, $2);
}
| propdataprefix DT_INCBIN '(' DT_STRING ',' addr ',' addr ')'
| propdataprefix DT_INCBIN '(' DT_STRING ',' integer_prim ',' integer_prim ')'
{
FILE *f = srcfile_relative_open($4.val, NULL);
struct data d;
@ -240,31 +271,154 @@ propdataprefix:
}
;
celllist:
/* empty */
arrayprefix:
DT_BITS DT_LITERAL '<'
{
$$ = empty_data;
$$.data = empty_data;
$$.bits = eval_literal($2, 0, 7);
if (($$.bits != 8) &&
($$.bits != 16) &&
($$.bits != 32) &&
($$.bits != 64))
{
print_error("Only 8, 16, 32 and 64-bit elements"
" are currently supported");
$$.bits = 32;
}
}
| celllist cellval
| '<'
{
$$ = data_append_cell($1, $2);
$$.data = empty_data;
$$.bits = 32;
}
| celllist DT_REF
| arrayprefix integer_prim
{
$$ = data_append_cell(data_add_marker($1, REF_PHANDLE,
$2), -1);
if ($1.bits < 64) {
uint64_t mask = (1ULL << $1.bits) - 1;
/*
* Bits above mask must either be all zero
* (positive within range of mask) or all one
* (negative and sign-extended). The second
* condition is true if when we set all bits
* within the mask to one (i.e. | in the
* mask), all bits are one.
*/
if (($2 > mask) && (($2 | mask) != -1ULL))
print_error(
"integer value out of range "
"%016lx (%d bits)", $1.bits);
}
$$.data = data_append_integer($1.data, $2, $1.bits);
}
| celllist DT_LABEL
| arrayprefix DT_REF
{
$$ = data_add_marker($1, LABEL, $2);
uint64_t val = ~0ULL >> (64 - $1.bits);
if ($1.bits == 32)
$1.data = data_add_marker($1.data,
REF_PHANDLE,
$2);
else
print_error("References are only allowed in "
"arrays with 32-bit elements.");
$$.data = data_append_integer($1.data, val, $1.bits);
}
| arrayprefix DT_LABEL
{
$$.data = data_add_marker($1.data, LABEL, $2);
}
;
cellval:
integer_prim:
DT_LITERAL
{
$$ = eval_literal($1, 0, 32);
$$ = eval_literal($1, 0, 64);
}
| DT_CHAR_LITERAL
{
$$ = eval_char_literal($1);
}
| '(' integer_expr ')'
{
$$ = $2;
}
;
integer_expr:
integer_trinary
;
integer_trinary:
integer_or
| integer_or '?' integer_expr ':' integer_trinary { $$ = $1 ? $3 : $5; }
;
integer_or:
integer_and
| integer_or DT_OR integer_and { $$ = $1 || $3; }
;
integer_and:
integer_bitor
| integer_and DT_AND integer_bitor { $$ = $1 && $3; }
;
integer_bitor:
integer_bitxor
| integer_bitor '|' integer_bitxor { $$ = $1 | $3; }
;
integer_bitxor:
integer_bitand
| integer_bitxor '^' integer_bitand { $$ = $1 ^ $3; }
;
integer_bitand:
integer_eq
| integer_bitand '&' integer_eq { $$ = $1 & $3; }
;
integer_eq:
integer_rela
| integer_eq DT_EQ integer_rela { $$ = $1 == $3; }
| integer_eq DT_NE integer_rela { $$ = $1 != $3; }
;
integer_rela:
integer_shift
| integer_rela '<' integer_shift { $$ = $1 < $3; }
| integer_rela '>' integer_shift { $$ = $1 > $3; }
| integer_rela DT_LE integer_shift { $$ = $1 <= $3; }
| integer_rela DT_GE integer_shift { $$ = $1 >= $3; }
;
integer_shift:
integer_shift DT_LSHIFT integer_add { $$ = $1 << $3; }
| integer_shift DT_RSHIFT integer_add { $$ = $1 >> $3; }
| integer_add
;
integer_add:
integer_add '+' integer_mul { $$ = $1 + $3; }
| integer_add '-' integer_mul { $$ = $1 - $3; }
| integer_mul
;
integer_mul:
integer_mul '*' integer_unary { $$ = $1 * $3; }
| integer_mul '/' integer_unary { $$ = $1 / $3; }
| integer_mul '%' integer_unary { $$ = $1 % $3; }
| integer_unary
;
integer_unary:
integer_prim
| '-' integer_unary { $$ = -$2; }
| '~' integer_unary { $$ = ~$2; }
| '!' integer_unary { $$ = !$2; }
;
bytestring:
@ -303,6 +457,10 @@ subnode:
{
$$ = name_node($2, $1);
}
| DT_DEL_NODE DT_PROPNODENAME ';'
{
$$ = name_node(build_node_delete(), $2);
}
| DT_LABEL subnode
{
add_label(&$2->labels, $1);
@ -334,12 +492,41 @@ static unsigned long long eval_literal(const char *s, int base, int bits)
errno = 0;
val = strtoull(s, &e, base);
if (*e)
print_error("bad characters in literal");
else if ((errno == ERANGE)
if (*e) {
size_t uls = strspn(e, "UL");
if (e[uls])
print_error("bad characters in literal");
}
if ((errno == ERANGE)
|| ((bits < 64) && (val >= (1ULL << bits))))
print_error("literal out of range");
else if (errno != 0)
print_error("bad literal");
return val;
}
static unsigned char eval_char_literal(const char *s)
{
int i = 1;
char c = s[0];
if (c == '\0')
{
print_error("empty character literal");
return 0;
}
/*
* If the first character in the character literal is a \ then process
* the remaining characters as an escape encoding. If the first
* character is neither an escape or a terminator it should be the only
* character in the literal and will be returned.
*/
if (c == '\\')
c = get_escape_char(s, &i);
if (s[i] != '\0')
print_error("malformed character literal");
return c;
}

21
scripts/dtc/dtc.c
View file

@ -82,6 +82,8 @@ static void __attribute__ ((noreturn)) usage(void)
fprintf(stderr, "\t\tSet the physical boot cpu\n");
fprintf(stderr, "\t-f\n");
fprintf(stderr, "\t\tForce - try to produce output even if the input tree has errors\n");
fprintf(stderr, "\t-i\n");
fprintf(stderr, "\t\tAdd a path to search for include files\n");
fprintf(stderr, "\t-s\n");
fprintf(stderr, "\t\tSort nodes and properties before outputting (only useful for\n\t\tcomparing trees)\n");
fprintf(stderr, "\t-v\n");
@ -91,6 +93,9 @@ static void __attribute__ ((noreturn)) usage(void)
fprintf(stderr, "\t\t\tlegacy - \"linux,phandle\" properties only\n");
fprintf(stderr, "\t\t\tepapr - \"phandle\" properties only\n");
fprintf(stderr, "\t\t\tboth - Both \"linux,phandle\" and \"phandle\" properties\n");
fprintf(stderr, "\t-W [no-]<checkname>\n");
fprintf(stderr, "\t-E [no-]<checkname>\n");
fprintf(stderr, "\t\t\tenable or disable warnings and errors\n");
exit(3);
}
@ -113,7 +118,7 @@ int main(int argc, char *argv[])
minsize = 0;
padsize = 0;
while ((opt = getopt(argc, argv, "hI:O:o:V:d:R:S:p:fcqb:vH:s"))
while ((opt = getopt(argc, argv, "hI:O:o:V:d:R:S:p:fqb:i:vH:sW:E:"))
!= EOF) {
switch (opt) {
case 'I':
@ -149,6 +154,9 @@ int main(int argc, char *argv[])
case 'b':
cmdline_boot_cpuid = strtoll(optarg, NULL, 0);
break;
case 'i':
srcfile_add_search_path(optarg);
break;
case 'v':
printf("Version: %s\n", DTC_VERSION);
exit(0);
@ -168,6 +176,14 @@ int main(int argc, char *argv[])
sort = 1;
break;
case 'W':
parse_checks_option(true, false, optarg);
break;
case 'E':
parse_checks_option(false, true, optarg);
break;
case 'h':
default:
usage();
@ -188,9 +204,6 @@ int main(int argc, char *argv[])
if (minsize)
fprintf(stderr, "DTC: Use of \"-S\" is deprecated; it will be removed soon, use \"-p\" instead\n");
fprintf(stderr, "DTC: %s->%s on file \"%s\"\n",
inform, outform, arg);
if (depname) {
depfile = fopen(depname, "w");
if (!depfile)

51
scripts/dtc/dtc.h
View file

@ -25,6 +25,7 @@
#include <string.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdarg.h>
#include <assert.h>
#include <ctype.h>
@ -109,6 +110,7 @@ struct data data_insert_at_marker(struct data d, struct marker *m,
const void *p, int len);
struct data data_merge(struct data d1, struct data d2);
struct data data_append_cell(struct data d, cell_t word);
struct data data_append_integer(struct data d, uint64_t word, int bits);
struct data data_append_re(struct data d, const struct fdt_reserve_entry *re);
struct data data_append_addr(struct data d, uint64_t addr);
struct data data_append_byte(struct data d, uint8_t byte);
@ -126,11 +128,13 @@ int data_is_one_string(struct data d);
/* Live trees */
struct label {
int deleted;
char *label;
struct label *next;
};
struct property {
int deleted;
char *name;
struct data val;
@ -140,6 +144,7 @@ struct property {
};
struct node {
int deleted;
char *name;
struct property *proplist;
struct node *children;
@ -156,28 +161,71 @@ struct node {
struct label *labels;
};
static inline struct label *for_each_label_next(struct label *l)
{
do {
l = l->next;
} while (l && l->deleted);
return l;
}
#define for_each_label(l0, l) \
for ((l) = (l0); (l); (l) = for_each_label_next(l))
#define for_each_label_withdel(l0, l) \
for ((l) = (l0); (l); (l) = (l)->next)
static inline struct property *for_each_property_next(struct property *p)
{
do {
p = p->next;
} while (p && p->deleted);
return p;
}
#define for_each_property(n, p) \
for ((p) = (n)->proplist; (p); (p) = for_each_property_next(p))
#define for_each_property_withdel(n, p) \
for ((p) = (n)->proplist; (p); (p) = (p)->next)
#define for_each_child(n, c) \
static inline struct node *for_each_child_next(struct node *c)
{
do {
c = c->next_sibling;
} while (c && c->deleted);
return c;
}
#define for_each_child(n, c) \
for ((c) = (n)->children; (c); (c) = for_each_child_next(c))
#define for_each_child_withdel(n, c) \
for ((c) = (n)->children; (c); (c) = (c)->next_sibling)
void add_label(struct label **labels, char *label);
void delete_labels(struct label **labels);
struct property *build_property(char *name, struct data val);
struct property *build_property_delete(char *name);
struct property *chain_property(struct property *first, struct property *list);
struct property *reverse_properties(struct property *first);
struct node *build_node(struct property *proplist, struct node *children);
struct node *build_node_delete(void);
struct node *name_node(struct node *node, char *name);
struct node *chain_node(struct node *first, struct node *list);
struct node *merge_nodes(struct node *old_node, struct node *new_node);
void add_property(struct node *node, struct property *prop);
void delete_property_by_name(struct node *node, char *name);
void delete_property(struct property *prop);
void add_child(struct node *parent, struct node *child);
void delete_node_by_name(struct node *parent, char *name);
void delete_node(struct node *node);
const char *get_unitname(struct node *node);
struct property *get_property(struct node *node, const char *propname);
@ -224,6 +272,7 @@ void sort_tree(struct boot_info *bi);
/* Checks */
void parse_checks_option(bool warn, bool error, const char *optarg);
void process_checks(int force, struct boot_info *bi);
/* Flattened trees */

162
scripts/dtc/fdtdump.c Normal file
View file

@ -0,0 +1,162 @@
/*
* fdtdump.c - Contributed by Pantelis Antoniou <pantelis.antoniou AT gmail.com>
*/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <fdt.h>
#include <libfdt_env.h>
#include "util.h"
#define ALIGN(x, a) (((x) + ((a) - 1)) & ~((a) - 1))
#define PALIGN(p, a) ((void *)(ALIGN((unsigned long)(p), (a))))
#define GET_CELL(p) (p += 4, *((const uint32_t *)(p-4)))
static void print_data(const char *data, int len)
{
int i;
const char *p = data;
/* no data, don't print */
if (len == 0)
return;
if (util_is_printable_string(data, len)) {
printf(" = \"%s\"", (const char *)data);
} else if ((len % 4) == 0) {
printf(" = <");
for (i = 0; i < len; i += 4)
printf("0x%08x%s", fdt32_to_cpu(GET_CELL(p)),
i < (len - 4) ? " " : "");
printf(">");
} else {
printf(" = [");
for (i = 0; i < len; i++)
printf("%02x%s", *p++, i < len - 1 ? " " : "");
printf("]");
}
}
static void dump_blob(void *blob)
{
struct fdt_header *bph = blob;
uint32_t off_mem_rsvmap = fdt32_to_cpu(bph->off_mem_rsvmap);
uint32_t off_dt = fdt32_to_cpu(bph->off_dt_struct);
uint32_t off_str = fdt32_to_cpu(bph->off_dt_strings);
struct fdt_reserve_entry *p_rsvmap =
(struct fdt_reserve_entry *)((char *)blob + off_mem_rsvmap);
const char *p_struct = (const char *)blob + off_dt;
const char *p_strings = (const char *)blob + off_str;
uint32_t version = fdt32_to_cpu(bph->version);
uint32_t totalsize = fdt32_to_cpu(bph->totalsize);
uint32_t tag;
const char *p, *s, *t;
int depth, sz, shift;
int i;
uint64_t addr, size;
depth = 0;
shift = 4;
printf("/dts-v1/;\n");
printf("// magic:\t\t0x%x\n", fdt32_to_cpu(bph->magic));
printf("// totalsize:\t\t0x%x (%d)\n", totalsize, totalsize);
printf("// off_dt_struct:\t0x%x\n", off_dt);
printf("// off_dt_strings:\t0x%x\n", off_str);
printf("// off_mem_rsvmap:\t0x%x\n", off_mem_rsvmap);
printf("// version:\t\t%d\n", version);
printf("// last_comp_version:\t%d\n",
fdt32_to_cpu(bph->last_comp_version));
if (version >= 2)
printf("// boot_cpuid_phys:\t0x%x\n",
fdt32_to_cpu(bph->boot_cpuid_phys));
if (version >= 3)
printf("// size_dt_strings:\t0x%x\n",
fdt32_to_cpu(bph->size_dt_strings));
if (version >= 17)
printf("// size_dt_struct:\t0x%x\n",
fdt32_to_cpu(bph->size_dt_struct));
printf("\n");
for (i = 0; ; i++) {
addr = fdt64_to_cpu(p_rsvmap[i].address);
size = fdt64_to_cpu(p_rsvmap[i].size);
if (addr == 0 && size == 0)
break;
printf("/memreserve/ %llx %llx;\n",
(unsigned long long)addr, (unsigned long long)size);
}
p = p_struct;
while ((tag = fdt32_to_cpu(GET_CELL(p))) != FDT_END) {
/* printf("tag: 0x%08x (%d)\n", tag, p - p_struct); */
if (tag == FDT_BEGIN_NODE) {
s = p;
p = PALIGN(p + strlen(s) + 1, 4);
if (*s == '\0')
s = "/";
printf("%*s%s {\n", depth * shift, "", s);
depth++;
continue;
}
if (tag == FDT_END_NODE) {
depth--;
printf("%*s};\n", depth * shift, "");
continue;
}
if (tag == FDT_NOP) {
printf("%*s// [NOP]\n", depth * shift, "");
continue;
}
if (tag != FDT_PROP) {
fprintf(stderr, "%*s ** Unknown tag 0x%08x\n", depth * shift, "", tag);
break;
}
sz = fdt32_to_cpu(GET_CELL(p));
s = p_strings + fdt32_to_cpu(GET_CELL(p));
if (version < 16 && sz >= 8)
p = PALIGN(p, 8);
t = p;
p = PALIGN(p + sz, 4);
printf("%*s%s", depth * shift, "", s);
print_data(t, sz);
printf(";\n");
}
}
int main(int argc, char *argv[])
{
char *buf;
if (argc < 2) {
fprintf(stderr, "supply input filename\n");
return 5;
}
buf = utilfdt_read(argv[1]);
if (buf)
dump_blob(buf);
else
return 10;
return 0;
}

366
scripts/dtc/fdtget.c Normal file
View file

@ -0,0 +1,366 @@
/*
* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
*
* Portions from U-Boot cmd_fdt.c (C) Copyright 2007
* Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
* Based on code written by:
* Pantelis Antoniou <pantelis.antoniou@gmail.com> and
* Matthew McClintock <msm@freescale.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <assert.h>
#include <ctype.h>
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libfdt.h>
#include "util.h"
enum display_mode {
MODE_SHOW_VALUE, /* show values for node properties */
MODE_LIST_PROPS, /* list the properties for a node */
MODE_LIST_SUBNODES, /* list the subnodes of a node */
};
/* Holds information which controls our output and options */
struct display_info {
int type; /* data type (s/i/u/x or 0 for default) */
int size; /* data size (1/2/4) */
enum display_mode mode; /* display mode that we are using */
const char *default_val; /* default value if node/property not found */
};
static void report_error(const char *where, int err)
{
fprintf(stderr, "Error at '%s': %s\n", where, fdt_strerror(err));
}
/**
* Displays data of a given length according to selected options
*
* If a specific data type is provided in disp, then this is used. Otherwise
* we try to guess the data type / size from the contents.
*
* @param disp Display information / options
* @param data Data to display
* @param len Maximum length of buffer
* @return 0 if ok, -1 if data does not match format
*/
static int show_data(struct display_info *disp, const char *data, int len)
{
int i, size;
const uint8_t *p = (const uint8_t *)data;
const char *s;
int value;
int is_string;
char fmt[3];
/* no data, don't print */
if (len == 0)
return 0;
is_string = (disp->type) == 's' ||
(!disp->type && util_is_printable_string(data, len));
if (is_string) {
if (data[len - 1] != '\0') {
fprintf(stderr, "Unterminated string\n");
return -1;
}
for (s = data; s - data < len; s += strlen(s) + 1) {
if (s != data)
printf(" ");
printf("%s", (const char *)s);
}
return 0;
}
size = disp->size;
if (size == -1) {
size = (len % 4) == 0 ? 4 : 1;
} else if (len % size) {
fprintf(stderr, "Property length must be a multiple of "
"selected data size\n");
return -1;
}
fmt[0] = '%';
fmt[1] = disp->type ? disp->type : 'd';
fmt[2] = '\0';
for (i = 0; i < len; i += size, p += size) {
if (i)
printf(" ");
value = size == 4 ? fdt32_to_cpu(*(const uint32_t *)p) :
size == 2 ? (*p << 8) | p[1] : *p;
printf(fmt, value);
}
return 0;
}
/**
* List all properties in a node, one per line.
*
* @param blob FDT blob
* @param node Node to display
* @return 0 if ok, or FDT_ERR... if not.
*/
static int list_properties(const void *blob, int node)
{
const struct fdt_property *data;
const char *name;
int prop;
prop = fdt_first_property_offset(blob, node);
do {
/* Stop silently when there are no more properties */
if (prop < 0)
return prop == -FDT_ERR_NOTFOUND ? 0 : prop;
data = fdt_get_property_by_offset(blob, prop, NULL);
name = fdt_string(blob, fdt32_to_cpu(data->nameoff));
if (name)
puts(name);
prop = fdt_next_property_offset(blob, prop);
} while (1);
}
#define MAX_LEVEL 32 /* how deeply nested we will go */
/**
* List all subnodes in a node, one per line
*
* @param blob FDT blob
* @param node Node to display
* @return 0 if ok, or FDT_ERR... if not.
*/
static int list_subnodes(const void *blob, int node)
{
int nextoffset; /* next node offset from libfdt */
uint32_t tag; /* current tag */
int level = 0; /* keep track of nesting level */
const char *pathp;
int depth = 1; /* the assumed depth of this node */
while (level >= 0) {
tag = fdt_next_tag(blob, node, &nextoffset);
switch (tag) {
case FDT_BEGIN_NODE:
pathp = fdt_get_name(blob, node, NULL);
if (level <= depth) {
if (pathp == NULL)
pathp = "/* NULL pointer error */";
if (*pathp == '\0')
pathp = "/"; /* root is nameless */
if (level == 1)
puts(pathp);
}
level++;
if (level >= MAX_LEVEL) {
printf("Nested too deep, aborting.\n");
return 1;
}
break;
case FDT_END_NODE:
level--;
if (level == 0)
level = -1; /* exit the loop */
break;
case FDT_END:
return 1;
case FDT_PROP:
break;
default:
if (level <= depth)
printf("Unknown tag 0x%08X\n", tag);
return 1;
}
node = nextoffset;
}
return 0;
}
/**
* Show the data for a given node (and perhaps property) according to the
* display option provided.
*
* @param blob FDT blob
* @param disp Display information / options
* @param node Node to display
* @param property Name of property to display, or NULL if none
* @return 0 if ok, -ve on error
*/
static int show_data_for_item(const void *blob, struct display_info *disp,
int node, const char *property)
{
const void *value = NULL;
int len, err = 0;
switch (disp->mode) {
case MODE_LIST_PROPS:
err = list_properties(blob, node);
break;
case MODE_LIST_SUBNODES:
err = list_subnodes(blob, node);
break;
default:
assert(property);
value = fdt_getprop(blob, node, property, &len);
if (value) {
if (show_data(disp, value, len))
err = -1;
else
printf("\n");
} else if (disp->default_val) {
puts(disp->default_val);
} else {
report_error(property, len);
err = -1;
}
break;
}
return err;
}
/**
* Run the main fdtget operation, given a filename and valid arguments
*
* @param disp Display information / options
* @param filename Filename of blob file
* @param arg List of arguments to process
* @param arg_count Number of arguments
* @param return 0 if ok, -ve on error
*/
static int do_fdtget(struct display_info *disp, const char *filename,
char **arg, int arg_count, int args_per_step)
{
char *blob;
const char *prop;
int i, node;
blob = utilfdt_read(filename);
if (!blob)
return -1;
for (i = 0; i + args_per_step <= arg_count; i += args_per_step) {
node = fdt_path_offset(blob, arg[i]);
if (node < 0) {
if (disp->default_val) {
puts(disp->default_val);
continue;
} else {
report_error(arg[i], node);
return -1;
}
}
prop = args_per_step == 1 ? NULL : arg[i + 1];
if (show_data_for_item(blob, disp, node, prop))
return -1;
}
return 0;
}
static const char *usage_msg =
"fdtget - read values from device tree\n"
"\n"
"Each value is printed on a new line.\n\n"
"Usage:\n"
" fdtget <options> <dt file> [<node> <property>]...\n"
" fdtget -p <options> <dt file> [<node> ]...\n"
"Options:\n"
"\t-t <type>\tType of data\n"
"\t-p\t\tList properties for each node\n"
"\t-l\t\tList subnodes for each node\n"
"\t-d\t\tDefault value to display when the property is "
"missing\n"
"\t-h\t\tPrint this help\n\n"
USAGE_TYPE_MSG;
static void usage(const char *msg)
{
if (msg)
fprintf(stderr, "Error: %s\n\n", msg);
fprintf(stderr, "%s", usage_msg);
exit(2);
}
int main(int argc, char *argv[])
{
char *filename = NULL;
struct display_info disp;
int args_per_step = 2;
/* set defaults */
memset(&disp, '\0', sizeof(disp));
disp.size = -1;
disp.mode = MODE_SHOW_VALUE;
for (;;) {
int c = getopt(argc, argv, "d:hlpt:");
if (c == -1)
break;
switch (c) {
case 'h':
case '?':
usage(NULL);
case 't':
if (utilfdt_decode_type(optarg, &disp.type,
&disp.size))
usage("Invalid type string");
break;
case 'p':
disp.mode = MODE_LIST_PROPS;
args_per_step = 1;
break;
case 'l':
disp.mode = MODE_LIST_SUBNODES;
args_per_step = 1;
break;
case 'd':
disp.default_val = optarg;
break;
}
}
if (optind < argc)
filename = argv[optind++];
if (!filename)
usage("Missing filename");
argv += optind;
argc -= optind;
/* Allow no arguments, and silently succeed */
if (!argc)
return 0;
/* Check for node, property arguments */
if (args_per_step == 2 && (argc % 2))
usage("Must have an even number of arguments");
if (do_fdtget(&disp, filename, argv, argc, args_per_step))
return 1;
return 0;
}

362
scripts/dtc/fdtput.c Normal file
View file

@ -0,0 +1,362 @@
/*
* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <assert.h>
#include <ctype.h>
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libfdt.h>
#include "util.h"
/* These are the operations we support */
enum oper_type {
OPER_WRITE_PROP, /* Write a property in a node */
OPER_CREATE_NODE, /* Create a new node */
};
struct display_info {
enum oper_type oper; /* operation to perform */
int type; /* data type (s/i/u/x or 0 for default) */
int size; /* data size (1/2/4) */
int verbose; /* verbose output */
int auto_path; /* automatically create all path components */
};
/**
* Report an error with a particular node.
*
* @param name Node name to report error on
* @param namelen Length of node name, or -1 to use entire string
* @param err Error number to report (-FDT_ERR_...)
*/
static void report_error(const char *name, int namelen, int err)
{
if (namelen == -1)
namelen = strlen(name);
fprintf(stderr, "Error at '%1.*s': %s\n", namelen, name,
fdt_strerror(err));
}
/**
* Encode a series of arguments in a property value.
*
* @param disp Display information / options
* @param arg List of arguments from command line
* @param arg_count Number of arguments (may be 0)
* @param valuep Returns buffer containing value
* @param *value_len Returns length of value encoded
*/
static int encode_value(struct display_info *disp, char **arg, int arg_count,
char **valuep, int *value_len)
{
char *value = NULL; /* holding area for value */
int value_size = 0; /* size of holding area */
char *ptr; /* pointer to current value position */
int len; /* length of this cell/string/byte */
int ival;
int upto; /* the number of bytes we have written to buf */
char fmt[3];
upto = 0;
if (disp->verbose)
fprintf(stderr, "Decoding value:\n");
fmt[0] = '%';
fmt[1] = disp->type ? disp->type : 'd';
fmt[2] = '\0';
for (; arg_count > 0; arg++, arg_count--, upto += len) {
/* assume integer unless told otherwise */
if (disp->type == 's')
len = strlen(*arg) + 1;
else
len = disp->size == -1 ? 4 : disp->size;
/* enlarge our value buffer by a suitable margin if needed */
if (upto + len > value_size) {
value_size = (upto + len) + 500;
value = realloc(value, value_size);
if (!value) {
fprintf(stderr, "Out of mmory: cannot alloc "
"%d bytes\n", value_size);
return -1;
}
}
ptr = value + upto;
if (disp->type == 's') {
memcpy(ptr, *arg, len);
if (disp->verbose)
fprintf(stderr, "\tstring: '%s'\n", ptr);
} else {
int *iptr = (int *)ptr;
sscanf(*arg, fmt, &ival);
if (len == 4)
*iptr = cpu_to_fdt32(ival);
else
*ptr = (uint8_t)ival;
if (disp->verbose) {
fprintf(stderr, "\t%s: %d\n",
disp->size == 1 ? "byte" :
disp->size == 2 ? "short" : "int",
ival);
}
}
}
*value_len = upto;
*valuep = value;
if (disp->verbose)
fprintf(stderr, "Value size %d\n", upto);
return 0;
}
static int store_key_value(void *blob, const char *node_name,
const char *property, const char *buf, int len)
{
int node;
int err;
node = fdt_path_offset(blob, node_name);
if (node < 0) {
report_error(node_name, -1, node);
return -1;
}
err = fdt_setprop(blob, node, property, buf, len);
if (err) {
report_error(property, -1, err);
return -1;
}
return 0;
}
/**
* Create paths as needed for all components of a path
*
* Any components of the path that do not exist are created. Errors are
* reported.
*
* @param blob FDT blob to write into
* @param in_path Path to process
* @return 0 if ok, -1 on error
*/
static int create_paths(void *blob, const char *in_path)
{
const char *path = in_path;
const char *sep;
int node, offset = 0;
/* skip leading '/' */
while (*path == '/')
path++;
for (sep = path; *sep; path = sep + 1, offset = node) {
/* equivalent to strchrnul(), but it requires _GNU_SOURCE */
sep = strchr(path, '/');
if (!sep)
sep = path + strlen(path);
node = fdt_subnode_offset_namelen(blob, offset, path,
sep - path);
if (node == -FDT_ERR_NOTFOUND) {
node = fdt_add_subnode_namelen(blob, offset, path,
sep - path);
}
if (node < 0) {
report_error(path, sep - path, node);
return -1;
}
}
return 0;
}
/**
* Create a new node in the fdt.
*
* This will overwrite the node_name string. Any error is reported.
*
* TODO: Perhaps create fdt_path_offset_namelen() so we don't need to do this.
*
* @param blob FDT blob to write into
* @param node_name Name of node to create
* @return new node offset if found, or -1 on failure
*/
static int create_node(void *blob, const char *node_name)
{
int node = 0;
char *p;
p = strrchr(node_name, '/');
if (!p) {
report_error(node_name, -1, -FDT_ERR_BADPATH);
return -1;
}
*p = '\0';
if (p > node_name) {
node = fdt_path_offset(blob, node_name);
if (node < 0) {
report_error(node_name, -1, node);
return -1;
}
}
node = fdt_add_subnode(blob, node, p + 1);
if (node < 0) {
report_error(p + 1, -1, node);
return -1;
}
return 0;
}
static int do_fdtput(struct display_info *disp, const char *filename,
char **arg, int arg_count)
{
char *value;
char *blob;
int len, ret = 0;
blob = utilfdt_read(filename);
if (!blob)
return -1;
switch (disp->oper) {
case OPER_WRITE_PROP:
/*
* Convert the arguments into a single binary value, then
* store them into the property.
*/
assert(arg_count >= 2);
if (disp->auto_path && create_paths(blob, *arg))
return -1;
if (encode_value(disp, arg + 2, arg_count - 2, &value, &len) ||
store_key_value(blob, *arg, arg[1], value, len))
ret = -1;
break;
case OPER_CREATE_NODE:
for (; ret >= 0 && arg_count--; arg++) {
if (disp->auto_path)
ret = create_paths(blob, *arg);
else
ret = create_node(blob, *arg);
}
break;
}
if (ret >= 0)
ret = utilfdt_write(filename, blob);
free(blob);
return ret;
}
static const char *usage_msg =
"fdtput - write a property value to a device tree\n"
"\n"
"The command line arguments are joined together into a single value.\n"
"\n"
"Usage:\n"
" fdtput <options> <dt file> <node> <property> [<value>...]\n"
" fdtput -c <options> <dt file> [<node>...]\n"
"Options:\n"
"\t-c\t\tCreate nodes if they don't already exist\n"
"\t-p\t\tAutomatically create nodes as needed for the node path\n"
"\t-t <type>\tType of data\n"
"\t-v\t\tVerbose: display each value decoded from command line\n"
"\t-h\t\tPrint this help\n\n"
USAGE_TYPE_MSG;
static void usage(const char *msg)
{
if (msg)
fprintf(stderr, "Error: %s\n\n", msg);
fprintf(stderr, "%s", usage_msg);
exit(2);
}
int main(int argc, char *argv[])
{
struct display_info disp;
char *filename = NULL;
memset(&disp, '\0', sizeof(disp));
disp.size = -1;
disp.oper = OPER_WRITE_PROP;
for (;;) {
int c = getopt(argc, argv, "chpt:v");
if (c == -1)
break;
/*
* TODO: add options to:
* - delete property
* - delete node (optionally recursively)
* - rename node
* - pack fdt before writing
* - set amount of free space when writing
* - expand fdt if value doesn't fit
*/
switch (c) {
case 'c':
disp.oper = OPER_CREATE_NODE;
break;
case 'h':
case '?':
usage(NULL);
case 'p':
disp.auto_path = 1;
break;
case 't':
if (utilfdt_decode_type(optarg, &disp.type,
&disp.size))
usage("Invalid type string");
break;
case 'v':
disp.verbose = 1;
break;
}
}
if (optind < argc)
filename = argv[optind++];
if (!filename)
usage("Missing filename");
argv += optind;
argc -= optind;
if (disp.oper == OPER_WRITE_PROP) {
if (argc < 1)
usage("Missing node");
if (argc < 2)
usage("Missing property");
}
if (do_fdtput(&disp, filename, argv, argc))
return 1;
return 0;
}

3
scripts/dtc/flattree.c
View file

@ -263,6 +263,9 @@ static void flatten_tree(struct node *tree, struct emitter *emit,
struct node *child;
int seen_name_prop = 0;
if (tree->deleted)
return;
emit->beginnode(etarget, tree->labels);
if (vi->flags & FTF_FULLPATH)

6
scripts/dtc/libfdt/Makefile.libfdt
View file

@ -3,6 +3,8 @@
# This is not a complete Makefile of itself. Instead, it is designed to
# be easily embeddable into other systems of Makefiles.
#
LIBFDT_INCLUDES = fdt.h libfdt.h
LIBFDT_SRCS = fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
LIBFDT_soname = libfdt.$(SHAREDLIB_EXT).1
LIBFDT_INCLUDES = fdt.h libfdt.h libfdt_env.h
LIBFDT_VERSION = version.lds
LIBFDT_SRCS = fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c fdt_empty_tree.c
LIBFDT_OBJS = $(LIBFDT_SRCS:%.c=%.o)

61
scripts/dtc/libfdt/fdt.c
View file

@ -74,7 +74,7 @@ int fdt_check_header(const void *fdt)
return 0;
}
const void *fdt_offset_ptr(const void *fdt, int offset, int len)
const void *fdt_offset_ptr(const void *fdt, int offset, unsigned int len)
{
const char *p;
@ -90,42 +90,53 @@ const void *fdt_offset_ptr(const void *fdt, int offset, int len)
return p;
}
uint32_t fdt_next_tag(const void *fdt, int offset, int *nextoffset)
uint32_t fdt_next_tag(const void *fdt, int startoffset, int *nextoffset)
{
const uint32_t *tagp, *lenp;
uint32_t tag;
int offset = startoffset;
const char *p;
if (offset % FDT_TAGSIZE)
return -1;
*nextoffset = -FDT_ERR_TRUNCATED;
tagp = fdt_offset_ptr(fdt, offset, FDT_TAGSIZE);
if (! tagp)
if (!tagp)
return FDT_END; /* premature end */
tag = fdt32_to_cpu(*tagp);
offset += FDT_TAGSIZE;
*nextoffset = -FDT_ERR_BADSTRUCTURE;
switch (tag) {
case FDT_BEGIN_NODE:
/* skip name */
do {
p = fdt_offset_ptr(fdt, offset++, 1);
} while (p && (*p != '\0'));
if (! p)
return FDT_END;
if (!p)
return FDT_END; /* premature end */
break;
case FDT_PROP:
lenp = fdt_offset_ptr(fdt, offset, sizeof(*lenp));
if (! lenp)
return FDT_END;
/* skip name offset, length and value */
offset += 2*FDT_TAGSIZE + fdt32_to_cpu(*lenp);
if (!lenp)
return FDT_END; /* premature end */
/* skip-name offset, length and value */
offset += sizeof(struct fdt_property) - FDT_TAGSIZE
+ fdt32_to_cpu(*lenp);
break;
case FDT_END:
case FDT_END_NODE:
case FDT_NOP:
break;
default:
return FDT_END;
}
if (nextoffset)
*nextoffset = FDT_TAGALIGN(offset);
if (!fdt_offset_ptr(fdt, startoffset, offset - startoffset))
return FDT_END; /* premature end */
*nextoffset = FDT_TAGALIGN(offset);
return tag;
}
@ -138,6 +149,15 @@ int _fdt_check_node_offset(const void *fdt, int offset)
return offset;
}
int _fdt_check_prop_offset(const void *fdt, int offset)
{
if ((offset < 0) || (offset % FDT_TAGSIZE)
|| (fdt_next_tag(fdt, offset, &offset) != FDT_PROP))
return -FDT_ERR_BADOFFSET;
return offset;
}
int fdt_next_node(const void *fdt, int offset, int *depth)
{
int nextoffset = 0;
@ -162,15 +182,16 @@ int fdt_next_node(const void *fdt, int offset, int *depth)
break;
case FDT_END_NODE:
if (depth)
(*depth)--;
if (depth && ((--(*depth)) < 0))
return nextoffset;
break;
case FDT_END:
return -FDT_ERR_NOTFOUND;
default:
return -FDT_ERR_BADSTRUCTURE;
if ((nextoffset >= 0)
|| ((nextoffset == -FDT_ERR_TRUNCATED) && !depth))
return -FDT_ERR_NOTFOUND;
else
return nextoffset;
}
} while (tag != FDT_BEGIN_NODE);

84
scripts/dtc/libfdt/fdt_empty_tree.c Normal file
View file

@ -0,0 +1,84 @@
/*
* libfdt - Flat Device Tree manipulation
* Copyright (C) 2012 David Gibson, IBM Corporation.
*
* libfdt is dual licensed: you can use it either under the terms of
* the GPL, or the BSD license, at your option.
*
* a) This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301 USA
*
* Alternatively,
*
* b) Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "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 COPYRIGHT OWNER OR
* CONTRIBUTORS 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.
*/
#include "libfdt_env.h"
#include <fdt.h>
#include <libfdt.h>
#include "libfdt_internal.h"
int fdt_create_empty_tree(void *buf, int bufsize)
{
int err;
err = fdt_create(buf, bufsize);
if (err)
return err;
err = fdt_finish_reservemap(buf);
if (err)
return err;
err = fdt_begin_node(buf, "");
if (err)
return err;
err = fdt_end_node(buf);
if (err)
return err;
err = fdt_finish(buf);
if (err)
return err;
return fdt_open_into(buf, buf, bufsize);
}

291
scripts/dtc/libfdt/fdt_ro.c
View file

@ -80,6 +80,14 @@ const char *fdt_string(const void *fdt, int stroffset)
return (const char *)fdt + fdt_off_dt_strings(fdt) + stroffset;
}
static int _fdt_string_eq(const void *fdt, int stroffset,
const char *s, int len)
{
const char *p = fdt_string(fdt, stroffset);
return (strlen(p) == len) && (memcmp(p, s, len) == 0);
}
int fdt_get_mem_rsv(const void *fdt, int n, uint64_t *address, uint64_t *size)
{
FDT_CHECK_HEADER(fdt);
@ -97,6 +105,30 @@ int fdt_num_mem_rsv(const void *fdt)
return i;
}
static int _nextprop(const void *fdt, int offset)
{
uint32_t tag;
int nextoffset;
do {
tag = fdt_next_tag(fdt, offset, &nextoffset);
switch (tag) {
case FDT_END:
if (nextoffset >= 0)
return -FDT_ERR_BADSTRUCTURE;
else
return nextoffset;
case FDT_PROP:
return offset;
}
offset = nextoffset;
} while (tag == FDT_NOP);
return -FDT_ERR_NOTFOUND;
}
int fdt_subnode_offset_namelen(const void *fdt, int offset,
const char *name, int namelen)
{
@ -104,20 +136,16 @@ int fdt_subnode_offset_namelen(const void *fdt, int offset,
FDT_CHECK_HEADER(fdt);
for (depth = 0, offset = fdt_next_node(fdt, offset, &depth);
(offset >= 0) && (depth > 0);
offset = fdt_next_node(fdt, offset, &depth)) {
if (depth < 0)
return -FDT_ERR_NOTFOUND;
else if ((depth == 1)
&& _fdt_nodename_eq(fdt, offset, name, namelen))
for (depth = 0;
(offset >= 0) && (depth >= 0);
offset = fdt_next_node(fdt, offset, &depth))
if ((depth == 1)
&& _fdt_nodename_eq(fdt, offset, name, namelen))
return offset;
}
if (offset < 0)
return offset; /* error */
else
if (depth < 0)
return -FDT_ERR_NOTFOUND;
return offset; /* error */
}
int fdt_subnode_offset(const void *fdt, int parentoffset,
@ -134,8 +162,20 @@ int fdt_path_offset(const void *fdt, const char *path)
FDT_CHECK_HEADER(fdt);
if (*path != '/')
return -FDT_ERR_BADPATH;
/* see if we have an alias */
if (*path != '/') {
const char *q = strchr(path, '/');
if (!q)
q = end;
p = fdt_get_alias_namelen(fdt, p, q - p);
if (!p)
return -FDT_ERR_BADPATH;
offset = fdt_path_offset(fdt, p);
p = q;
}
while (*p) {
const char *q;
@ -178,93 +218,142 @@ const char *fdt_get_name(const void *fdt, int nodeoffset, int *len)
return NULL;
}
int fdt_first_property_offset(const void *fdt, int nodeoffset)
{
int offset;
if ((offset = _fdt_check_node_offset(fdt, nodeoffset)) < 0)
return offset;
return _nextprop(fdt, offset);
}
int fdt_next_property_offset(const void *fdt, int offset)
{
if ((offset = _fdt_check_prop_offset(fdt, offset)) < 0)
return offset;
return _nextprop(fdt, offset);
}
const struct fdt_property *fdt_get_property_by_offset(const void *fdt,
int offset,
int *lenp)
{
int err;
const struct fdt_property *prop;
if ((err = _fdt_check_prop_offset(fdt, offset)) < 0) {
if (lenp)
*lenp = err;
return NULL;
}
prop = _fdt_offset_ptr(fdt, offset);
if (lenp)
*lenp = fdt32_to_cpu(prop->len);
return prop;
}
const struct fdt_property *fdt_get_property_namelen(const void *fdt,
int offset,
const char *name,
int namelen, int *lenp)
{
for (offset = fdt_first_property_offset(fdt, offset);
(offset >= 0);
(offset = fdt_next_property_offset(fdt, offset))) {
const struct fdt_property *prop;
if (!(prop = fdt_get_property_by_offset(fdt, offset, lenp))) {
offset = -FDT_ERR_INTERNAL;
break;
}
if (_fdt_string_eq(fdt, fdt32_to_cpu(prop->nameoff),
name, namelen))
return prop;
}
if (lenp)
*lenp = offset;
return NULL;
}
const struct fdt_property *fdt_get_property(const void *fdt,
int nodeoffset,
const char *name, int *lenp)
{
uint32_t tag;
const struct fdt_property *prop;
int namestroff;
int offset, nextoffset;
int err;
if (((err = fdt_check_header(fdt)) != 0)
|| ((err = _fdt_check_node_offset(fdt, nodeoffset)) < 0))
goto fail;
nextoffset = err;
do {
offset = nextoffset;
tag = fdt_next_tag(fdt, offset, &nextoffset);
switch (tag) {
case FDT_END:
err = -FDT_ERR_TRUNCATED;
goto fail;
case FDT_BEGIN_NODE:
case FDT_END_NODE:
case FDT_NOP:
break;
case FDT_PROP:
err = -FDT_ERR_BADSTRUCTURE;
prop = fdt_offset_ptr(fdt, offset, sizeof(*prop));
if (! prop)
goto fail;
namestroff = fdt32_to_cpu(prop->nameoff);
if (strcmp(fdt_string(fdt, namestroff), name) == 0) {
/* Found it! */
int len = fdt32_to_cpu(prop->len);
prop = fdt_offset_ptr(fdt, offset,
sizeof(*prop)+len);
if (! prop)
goto fail;
if (lenp)
*lenp = len;
return prop;
}
break;
default:
err = -FDT_ERR_BADSTRUCTURE;
goto fail;
}
} while ((tag != FDT_BEGIN_NODE) && (tag != FDT_END_NODE));
err = -FDT_ERR_NOTFOUND;
fail:
if (lenp)
*lenp = err;
return NULL;
return fdt_get_property_namelen(fdt, nodeoffset, name,
strlen(name), lenp);
}
const void *fdt_getprop(const void *fdt, int nodeoffset,
const char *name, int *lenp)
const void *fdt_getprop_namelen(const void *fdt, int nodeoffset,
const char *name, int namelen, int *lenp)
{
const struct fdt_property *prop;
prop = fdt_get_property(fdt, nodeoffset, name, lenp);
prop = fdt_get_property_namelen(fdt, nodeoffset, name, namelen, lenp);
if (! prop)
return NULL;
return prop->data;
}
const void *fdt_getprop_by_offset(const void *fdt, int offset,
const char **namep, int *lenp)
{
const struct fdt_property *prop;
prop = fdt_get_property_by_offset(fdt, offset, lenp);
if (!prop)
return NULL;
if (namep)
*namep = fdt_string(fdt, fdt32_to_cpu(prop->nameoff));
return prop->data;
}
const void *fdt_getprop(const void *fdt, int nodeoffset,
const char *name, int *lenp)
{
return fdt_getprop_namelen(fdt, nodeoffset, name, strlen(name), lenp);
}
uint32_t fdt_get_phandle(const void *fdt, int nodeoffset)
{
const uint32_t *php;
int len;
php = fdt_getprop(fdt, nodeoffset, "linux,phandle", &len);
if (!php || (len != sizeof(*php)))
return 0;
/* FIXME: This is a bit sub-optimal, since we potentially scan
* over all the properties twice. */
php = fdt_getprop(fdt, nodeoffset, "phandle", &len);
if (!php || (len != sizeof(*php))) {
php = fdt_getprop(fdt, nodeoffset, "linux,phandle", &len);
if (!php || (len != sizeof(*php)))
return 0;
}
return fdt32_to_cpu(*php);
}
const char *fdt_get_alias_namelen(const void *fdt,
const char *name, int namelen)
{
int aliasoffset;
aliasoffset = fdt_path_offset(fdt, "/aliases");
if (aliasoffset < 0)
return NULL;
return fdt_getprop_namelen(fdt, aliasoffset, name, namelen, NULL);
}
const char *fdt_get_alias(const void *fdt, const char *name)
{
return fdt_get_alias_namelen(fdt, name, strlen(name));
}
int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen)
{
int pdepth = 0, p = 0;
@ -279,9 +368,6 @@ int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen)
for (offset = 0, depth = 0;
(offset >= 0) && (offset <= nodeoffset);
offset = fdt_next_node(fdt, offset, &depth)) {
if (pdepth < depth)
continue; /* overflowed buffer */
while (pdepth > depth) {
do {
p--;
@ -289,14 +375,16 @@ int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen)
pdepth--;
}
name = fdt_get_name(fdt, offset, &namelen);
if (!name)
return namelen;
if ((p + namelen + 1) <= buflen) {
memcpy(buf + p, name, namelen);
p += namelen;
buf[p++] = '/';
pdepth++;
if (pdepth >= depth) {
name = fdt_get_name(fdt, offset, &namelen);
if (!name)
return namelen;
if ((p + namelen + 1) <= buflen) {
memcpy(buf + p, name, namelen);
p += namelen;
buf[p++] = '/';
pdepth++;
}
}
if (offset == nodeoffset) {
@ -306,7 +394,7 @@ int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen)
if (p > 1) /* special case so that root path is "/", not "" */
p--;
buf[p] = '\0';
return p;
return 0;
}
}
@ -404,14 +492,31 @@ int fdt_node_offset_by_prop_value(const void *fdt, int startoffset,
int fdt_node_offset_by_phandle(const void *fdt, uint32_t phandle)
{
int offset;
if ((phandle == 0) || (phandle == -1))
return -FDT_ERR_BADPHANDLE;
phandle = cpu_to_fdt32(phandle);
return fdt_node_offset_by_prop_value(fdt, -1, "linux,phandle",
&phandle, sizeof(phandle));
FDT_CHECK_HEADER(fdt);
/* FIXME: The algorithm here is pretty horrible: we
* potentially scan each property of a node in
* fdt_get_phandle(), then if that didn't find what
* we want, we scan over them again making our way to the next
* node. Still it's the easiest to implement approach;
* performance can come later. */
for (offset = fdt_next_node(fdt, -1, NULL);
offset >= 0;
offset = fdt_next_node(fdt, offset, NULL)) {
if (fdt_get_phandle(fdt, offset) == phandle)
return offset;
}
return offset; /* error from fdt_next_node() */
}
static int _stringlist_contains(const char *strlist, int listlen, const char *str)
static int _fdt_stringlist_contains(const char *strlist, int listlen,
const char *str)
{
int len = strlen(str);
const char *p;
@ -437,7 +542,7 @@ int fdt_node_check_compatible(const void *fdt, int nodeoffset,
prop = fdt_getprop(fdt, nodeoffset, "compatible", &len);
if (!prop)
return len;
if (_stringlist_contains(prop, len, compatible))
if (_fdt_stringlist_contains(prop, len, compatible))
return 0;
else
return 1;

29
scripts/dtc/libfdt/fdt_rw.c
View file

@ -289,6 +289,33 @@ int fdt_setprop(void *fdt, int nodeoffset, const char *name,
return 0;
}
int fdt_appendprop(void *fdt, int nodeoffset, const char *name,
const void *val, int len)
{
struct fdt_property *prop;
int err, oldlen, newlen;
FDT_RW_CHECK_HEADER(fdt);
prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen);
if (prop) {
newlen = len + oldlen;
err = _fdt_splice_struct(fdt, prop->data,
FDT_TAGALIGN(oldlen),
FDT_TAGALIGN(newlen));
if (err)
return err;
prop->len = cpu_to_fdt32(newlen);
memcpy(prop->data + oldlen, val, len);
} else {
err = _fdt_add_property(fdt, nodeoffset, name, len, &prop);
if (err)
return err;
memcpy(prop->data, val, len);
}
return 0;
}
int fdt_delprop(void *fdt, int nodeoffset, const char *name)
{
struct fdt_property *prop;
@ -406,6 +433,8 @@ int fdt_open_into(const void *fdt, void *buf, int bufsize)
struct_size = 0;
while (fdt_next_tag(fdt, struct_size, &struct_size) != FDT_END)
;
if (struct_size < 0)
return struct_size;
}
if (!_fdt_blocks_misordered(fdt, mem_rsv_size, struct_size)) {

11
scripts/dtc/libfdt/fdt_sw.c
View file

@ -70,7 +70,7 @@ static int _fdt_sw_check_header(void *fdt)
return err; \
}
static void *_fdt_grab_space(void *fdt, int len)
static void *_fdt_grab_space(void *fdt, size_t len)
{
int offset = fdt_size_dt_struct(fdt);
int spaceleft;
@ -82,7 +82,7 @@ static void *_fdt_grab_space(void *fdt, int len)
return NULL;
fdt_set_size_dt_struct(fdt, offset + len);
return fdt_offset_ptr_w(fdt, offset, len);
return _fdt_offset_ptr_w(fdt, offset);
}
int fdt_create(void *buf, int bufsize)
@ -237,18 +237,17 @@ int fdt_finish(void *fdt)
while ((tag = fdt_next_tag(fdt, offset, &nextoffset)) != FDT_END) {
if (tag == FDT_PROP) {
struct fdt_property *prop =
fdt_offset_ptr_w(fdt, offset, sizeof(*prop));
_fdt_offset_ptr_w(fdt, offset);
int nameoff;
if (! prop)
return -FDT_ERR_BADSTRUCTURE;
nameoff = fdt32_to_cpu(prop->nameoff);
nameoff += fdt_size_dt_strings(fdt);
prop->nameoff = cpu_to_fdt32(nameoff);
}
offset = nextoffset;
}
if (nextoffset < 0)
return nextoffset;
/* Finally, adjust the header */
fdt_set_totalsize(fdt, newstroffset + fdt_size_dt_strings(fdt));

37
scripts/dtc/libfdt/fdt_wip.c
View file

@ -94,41 +94,14 @@ int fdt_nop_property(void *fdt, int nodeoffset, const char *name)
return 0;
}
int _fdt_node_end_offset(void *fdt, int nodeoffset)
int _fdt_node_end_offset(void *fdt, int offset)
{
int level = 0;
uint32_t tag;
int offset, nextoffset;
int depth = 0;
tag = fdt_next_tag(fdt, nodeoffset, &nextoffset);
if (tag != FDT_BEGIN_NODE)
return -FDT_ERR_BADOFFSET;
do {
offset = nextoffset;
tag = fdt_next_tag(fdt, offset, &nextoffset);
while ((offset >= 0) && (depth >= 0))
offset = fdt_next_node(fdt, offset, &depth);
switch (tag) {
case FDT_END:
return offset;
case FDT_BEGIN_NODE:
level++;
break;
case FDT_END_NODE:
level--;
break;
case FDT_PROP:
case FDT_NOP:
break;
default:
return -FDT_ERR_BADSTRUCTURE;
}
} while (level >= 0);
return nextoffset;
return offset;
}
int fdt_nop_node(void *fdt, int nodeoffset)

440
scripts/dtc/libfdt/libfdt.h
View file

@ -61,7 +61,7 @@
#define FDT_ERR_NOTFOUND 1
/* FDT_ERR_NOTFOUND: The requested node or property does not exist */
#define FDT_ERR_EXISTS 2
/* FDT_ERR_EXISTS: Attempted to create a node or property which
/* FDT_ERR_EXISTS: Attemped to create a node or property which
* already exists */
#define FDT_ERR_NOSPACE 3
/* FDT_ERR_NOSPACE: Operation needed to expand the device
@ -122,7 +122,7 @@
/* Low-level functions (you probably don't need these) */
/**********************************************************************/
const void *fdt_offset_ptr(const void *fdt, int offset, int checklen);
const void *fdt_offset_ptr(const void *fdt, int offset, unsigned int checklen);
static inline void *fdt_offset_ptr_w(void *fdt, int offset, int checklen)
{
return (void *)(uintptr_t)fdt_offset_ptr(fdt, offset, checklen);
@ -156,7 +156,7 @@ int fdt_next_node(const void *fdt, int offset, int *depth);
#define __fdt_set_hdr(name) \
static inline void fdt_set_##name(void *fdt, uint32_t val) \
{ \
struct fdt_header *fdth = fdt; \
struct fdt_header *fdth = (struct fdt_header*)fdt; \
fdth->name = cpu_to_fdt32(val); \
}
__fdt_set_hdr(magic);
@ -342,6 +342,91 @@ int fdt_path_offset(const void *fdt, const char *path);
*/
const char *fdt_get_name(const void *fdt, int nodeoffset, int *lenp);
/**
* fdt_first_property_offset - find the offset of a node's first property
* @fdt: pointer to the device tree blob
* @nodeoffset: structure block offset of a node
*
* fdt_first_property_offset() finds the first property of the node at
* the given structure block offset.
*
* returns:
* structure block offset of the property (>=0), on success
* -FDT_ERR_NOTFOUND, if the requested node has no properties
* -FDT_ERR_BADOFFSET, if nodeoffset did not point to an FDT_BEGIN_NODE tag
* -FDT_ERR_BADMAGIC,
* -FDT_ERR_BADVERSION,
* -FDT_ERR_BADSTATE,
* -FDT_ERR_BADSTRUCTURE,
* -FDT_ERR_TRUNCATED, standard meanings.
*/
int fdt_first_property_offset(const void *fdt, int nodeoffset);
/**
* fdt_next_property_offset - step through a node's properties
* @fdt: pointer to the device tree blob
* @offset: structure block offset of a property
*
* fdt_next_property_offset() finds the property immediately after the
* one at the given structure block offset. This will be a property
* of the same node as the given property.
*
* returns:
* structure block offset of the next property (>=0), on success
* -FDT_ERR_NOTFOUND, if the given property is the last in its node
* -FDT_ERR_BADOFFSET, if nodeoffset did not point to an FDT_PROP tag
* -FDT_ERR_BADMAGIC,
* -FDT_ERR_BADVERSION,
* -FDT_ERR_BADSTATE,
* -FDT_ERR_BADSTRUCTURE,
* -FDT_ERR_TRUNCATED, standard meanings.
*/
int fdt_next_property_offset(const void *fdt, int offset);
/**
* fdt_get_property_by_offset - retrieve the property at a given offset
* @fdt: pointer to the device tree blob
* @offset: offset of the property to retrieve
* @lenp: pointer to an integer variable (will be overwritten) or NULL
*
* fdt_get_property_by_offset() retrieves a pointer to the
* fdt_property structure within the device tree blob at the given
* offset. If lenp is non-NULL, the length of the property value is
* also returned, in the integer pointed to by lenp.
*
* returns:
* pointer to the structure representing the property
* if lenp is non-NULL, *lenp contains the length of the property
* value (>=0)
* NULL, on error
* if lenp is non-NULL, *lenp contains an error code (<0):
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_PROP tag
* -FDT_ERR_BADMAGIC,
* -FDT_ERR_BADVERSION,
* -FDT_ERR_BADSTATE,
* -FDT_ERR_BADSTRUCTURE,
* -FDT_ERR_TRUNCATED, standard meanings
*/
const struct fdt_property *fdt_get_property_by_offset(const void *fdt,
int offset,
int *lenp);
/**
* fdt_get_property_namelen - find a property based on substring
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of the node whose property to find
* @name: name of the property to find
* @namelen: number of characters of name to consider
* @lenp: pointer to an integer variable (will be overwritten) or NULL
*
* Identical to fdt_get_property_namelen(), but only examine the first
* namelen characters of name for matching the property name.
*/
const struct fdt_property *fdt_get_property_namelen(const void *fdt,
int nodeoffset,
const char *name,
int namelen, int *lenp);
/**
* fdt_get_property - find a given property in a given node
* @fdt: pointer to the device tree blob
@ -379,6 +464,54 @@ static inline struct fdt_property *fdt_get_property_w(void *fdt, int nodeoffset,
fdt_get_property(fdt, nodeoffset, name, lenp);
}
/**
* fdt_getprop_by_offset - retrieve the value of a property at a given offset
* @fdt: pointer to the device tree blob
* @ffset: offset of the property to read
* @namep: pointer to a string variable (will be overwritten) or NULL
* @lenp: pointer to an integer variable (will be overwritten) or NULL
*
* fdt_getprop_by_offset() retrieves a pointer to the value of the
* property at structure block offset 'offset' (this will be a pointer
* to within the device blob itself, not a copy of the value). If
* lenp is non-NULL, the length of the property value is also
* returned, in the integer pointed to by lenp. If namep is non-NULL,
* the property's namne will also be returned in the char * pointed to
* by namep (this will be a pointer to within the device tree's string
* block, not a new copy of the name).
*
* returns:
* pointer to the property's value
* if lenp is non-NULL, *lenp contains the length of the property
* value (>=0)
* if namep is non-NULL *namep contiains a pointer to the property
* name.
* NULL, on error
* if lenp is non-NULL, *lenp contains an error code (<0):
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_PROP tag
* -FDT_ERR_BADMAGIC,
* -FDT_ERR_BADVERSION,
* -FDT_ERR_BADSTATE,
* -FDT_ERR_BADSTRUCTURE,
* -FDT_ERR_TRUNCATED, standard meanings
*/
const void *fdt_getprop_by_offset(const void *fdt, int offset,
const char **namep, int *lenp);
/**
* fdt_getprop_namelen - get property value based on substring
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of the node whose property to find
* @name: name of the property to find
* @namelen: number of characters of name to consider
* @lenp: pointer to an integer variable (will be overwritten) or NULL
*
* Identical to fdt_getprop(), but only examine the first namelen
* characters of name for matching the property name.
*/
const void *fdt_getprop_namelen(const void *fdt, int nodeoffset,
const char *name, int namelen, int *lenp);
/**
* fdt_getprop - retrieve the value of a given property
* @fdt: pointer to the device tree blob
@ -428,6 +561,32 @@ static inline void *fdt_getprop_w(void *fdt, int nodeoffset,
*/
uint32_t fdt_get_phandle(const void *fdt, int nodeoffset);
/**
* fdt_get_alias_namelen - get alias based on substring
* @fdt: pointer to the device tree blob
* @name: name of the alias th look up
* @namelen: number of characters of name to consider
*
* Identical to fdt_get_alias(), but only examine the first namelen
* characters of name for matching the alias name.
*/
const char *fdt_get_alias_namelen(const void *fdt,
const char *name, int namelen);
/**
* fdt_get_alias - retreive the path referenced by a given alias
* @fdt: pointer to the device tree blob
* @name: name of the alias th look up
*
* fdt_get_alias() retrieves the value of a given alias. That is, the
* value of the property named 'name' in the node /aliases.
*
* returns:
* a pointer to the expansion of the alias named 'name', of it exists
* NULL, if the given alias or the /aliases node does not exist
*/
const char *fdt_get_alias(const void *fdt, const char *name);
/**
* fdt_get_path - determine the full path of a node
* @fdt: pointer to the device tree blob
@ -693,17 +852,17 @@ int fdt_setprop_inplace(void *fdt, int nodeoffset, const char *name,
const void *val, int len);
/**
* fdt_setprop_inplace_cell - change the value of a single-cell property
* fdt_setprop_inplace_u32 - change the value of a 32-bit integer property
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of the node whose property to change
* @name: name of the property to change
* @val: cell (32-bit integer) value to replace the property with
* @val: 32-bit integer value to replace the property with
*
* fdt_setprop_inplace_cell() replaces the value of a given property
* with the 32-bit integer cell value in val, converting val to
* big-endian if necessary. This function cannot change the size of a
* property, and so will only work if the property already exists and
* has length 4.
* fdt_setprop_inplace_u32() replaces the value of a given property
* with the 32-bit integer value in val, converting val to big-endian
* if necessary. This function cannot change the size of a property,
* and so will only work if the property already exists and has length
* 4.
*
* This function will alter only the bytes in the blob which contain
* the given property value, and will not alter or move any other part
@ -712,7 +871,7 @@ int fdt_setprop_inplace(void *fdt, int nodeoffset, const char *name,
* returns:
* 0, on success
* -FDT_ERR_NOSPACE, if the property's length is not equal to 4
* -FDT_ERR_NOTFOUND, node does not have the named property
* -FDT_ERR_NOTFOUND, node does not have the named property
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
* -FDT_ERR_BADMAGIC,
* -FDT_ERR_BADVERSION,
@ -720,13 +879,59 @@ int fdt_setprop_inplace(void *fdt, int nodeoffset, const char *name,
* -FDT_ERR_BADSTRUCTURE,
* -FDT_ERR_TRUNCATED, standard meanings
*/
static inline int fdt_setprop_inplace_cell(void *fdt, int nodeoffset,
const char *name, uint32_t val)
static inline int fdt_setprop_inplace_u32(void *fdt, int nodeoffset,
const char *name, uint32_t val)
{
val = cpu_to_fdt32(val);
return fdt_setprop_inplace(fdt, nodeoffset, name, &val, sizeof(val));
}
/**
* fdt_setprop_inplace_u64 - change the value of a 64-bit integer property
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of the node whose property to change
* @name: name of the property to change
* @val: 64-bit integer value to replace the property with
*
* fdt_setprop_inplace_u64() replaces the value of a given property
* with the 64-bit integer value in val, converting val to big-endian
* if necessary. This function cannot change the size of a property,
* and so will only work if the property already exists and has length
* 8.
*
* This function will alter only the bytes in the blob which contain
* the given property value, and will not alter or move any other part
* of the tree.
*
* returns:
* 0, on success
* -FDT_ERR_NOSPACE, if the property's length is not equal to 8
* -FDT_ERR_NOTFOUND, node does not have the named property
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
* -FDT_ERR_BADMAGIC,
* -FDT_ERR_BADVERSION,
* -FDT_ERR_BADSTATE,
* -FDT_ERR_BADSTRUCTURE,
* -FDT_ERR_TRUNCATED, standard meanings
*/
static inline int fdt_setprop_inplace_u64(void *fdt, int nodeoffset,
const char *name, uint64_t val)
{
val = cpu_to_fdt64(val);
return fdt_setprop_inplace(fdt, nodeoffset, name, &val, sizeof(val));
}
/**
* fdt_setprop_inplace_cell - change the value of a single-cell property
*
* This is an alternative name for fdt_setprop_inplace_u32()
*/
static inline int fdt_setprop_inplace_cell(void *fdt, int nodeoffset,
const char *name, uint32_t val)
{
return fdt_setprop_inplace_u32(fdt, nodeoffset, name, val);
}
/**
* fdt_nop_property - replace a property with nop tags
* @fdt: pointer to the device tree blob
@ -786,11 +991,20 @@ int fdt_add_reservemap_entry(void *fdt, uint64_t addr, uint64_t size);
int fdt_finish_reservemap(void *fdt);
int fdt_begin_node(void *fdt, const char *name);
int fdt_property(void *fdt, const char *name, const void *val, int len);
static inline int fdt_property_cell(void *fdt, const char *name, uint32_t val)
static inline int fdt_property_u32(void *fdt, const char *name, uint32_t val)
{
val = cpu_to_fdt32(val);
return fdt_property(fdt, name, &val, sizeof(val));
}
static inline int fdt_property_u64(void *fdt, const char *name, uint64_t val)
{
val = cpu_to_fdt64(val);
return fdt_property(fdt, name, &val, sizeof(val));
}
static inline int fdt_property_cell(void *fdt, const char *name, uint32_t val)
{
return fdt_property_u32(fdt, name, val);
}
#define fdt_property_string(fdt, name, str) \
fdt_property(fdt, name, str, strlen(str)+1)
int fdt_end_node(void *fdt);
@ -800,6 +1014,7 @@ int fdt_finish(void *fdt);
/* Read-write functions */
/**********************************************************************/
int fdt_create_empty_tree(void *buf, int bufsize);
int fdt_open_into(const void *fdt, void *buf, int bufsize);
int fdt_pack(void *fdt);
@ -909,14 +1124,14 @@ int fdt_setprop(void *fdt, int nodeoffset, const char *name,
const void *val, int len);
/**
* fdt_setprop_cell - set a property to a single cell value
* fdt_setprop_u32 - set a property to a 32-bit integer
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of the node whose property to change
* @name: name of the property to change
* @val: 32-bit integer value for the property (native endian)
*
* fdt_setprop_cell() sets the value of the named property in the
* given node to the given cell value (converting to big-endian if
* fdt_setprop_u32() sets the value of the named property in the given
* node to the given 32-bit integer value (converting to big-endian if
* necessary), or creates a new property with that value if it does
* not already exist.
*
@ -936,13 +1151,59 @@ int fdt_setprop(void *fdt, int nodeoffset, const char *name,
* -FDT_ERR_BADLAYOUT,
* -FDT_ERR_TRUNCATED, standard meanings
*/
static inline int fdt_setprop_cell(void *fdt, int nodeoffset, const char *name,
uint32_t val)
static inline int fdt_setprop_u32(void *fdt, int nodeoffset, const char *name,
uint32_t val)
{
val = cpu_to_fdt32(val);
return fdt_setprop(fdt, nodeoffset, name, &val, sizeof(val));
}
/**
* fdt_setprop_u64 - set a property to a 64-bit integer
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of the node whose property to change
* @name: name of the property to change
* @val: 64-bit integer value for the property (native endian)
*
* fdt_setprop_u64() sets the value of the named property in the given
* node to the given 64-bit integer value (converting to big-endian if
* necessary), or creates a new property with that value if it does
* not already exist.
*
* This function may insert or delete data from the blob, and will
* therefore change the offsets of some existing nodes.
*
* returns:
* 0, on success
* -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
* contain the new property value
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
* -FDT_ERR_BADLAYOUT,
* -FDT_ERR_BADMAGIC,
* -FDT_ERR_BADVERSION,
* -FDT_ERR_BADSTATE,
* -FDT_ERR_BADSTRUCTURE,
* -FDT_ERR_BADLAYOUT,
* -FDT_ERR_TRUNCATED, standard meanings
*/
static inline int fdt_setprop_u64(void *fdt, int nodeoffset, const char *name,
uint64_t val)
{
val = cpu_to_fdt64(val);
return fdt_setprop(fdt, nodeoffset, name, &val, sizeof(val));
}
/**
* fdt_setprop_cell - set a property to a single cell value
*
* This is an alternative name for fdt_setprop_u32()
*/
static inline int fdt_setprop_cell(void *fdt, int nodeoffset, const char *name,
uint32_t val)
{
return fdt_setprop_u32(fdt, nodeoffset, name, val);
}
/**
* fdt_setprop_string - set a property to a string value
* @fdt: pointer to the device tree blob
@ -974,6 +1235,147 @@ static inline int fdt_setprop_cell(void *fdt, int nodeoffset, const char *name,
#define fdt_setprop_string(fdt, nodeoffset, name, str) \
fdt_setprop((fdt), (nodeoffset), (name), (str), strlen(str)+1)
/**
* fdt_appendprop - append to or create a property
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of the node whose property to change
* @name: name of the property to append to
* @val: pointer to data to append to the property value
* @len: length of the data to append to the property value
*
* fdt_appendprop() appends the value to the named property in the
* given node, creating the property if it does not already exist.
*
* This function may insert data into the blob, and will therefore
* change the offsets of some existing nodes.
*
* returns:
* 0, on success
* -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
* contain the new property value
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
* -FDT_ERR_BADLAYOUT,
* -FDT_ERR_BADMAGIC,
* -FDT_ERR_BADVERSION,
* -FDT_ERR_BADSTATE,
* -FDT_ERR_BADSTRUCTURE,
* -FDT_ERR_BADLAYOUT,
* -FDT_ERR_TRUNCATED, standard meanings
*/
int fdt_appendprop(void *fdt, int nodeoffset, const char *name,
const void *val, int len);
/**
* fdt_appendprop_u32 - append a 32-bit integer value to a property
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of the node whose property to change
* @name: name of the property to change
* @val: 32-bit integer value to append to the property (native endian)
*
* fdt_appendprop_u32() appends the given 32-bit integer value
* (converting to big-endian if necessary) to the value of the named
* property in the given node, or creates a new property with that
* value if it does not already exist.
*
* This function may insert data into the blob, and will therefore
* change the offsets of some existing nodes.
*
* returns:
* 0, on success
* -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
* contain the new property value
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
* -FDT_ERR_BADLAYOUT,
* -FDT_ERR_BADMAGIC,
* -FDT_ERR_BADVERSION,
* -FDT_ERR_BADSTATE,
* -FDT_ERR_BADSTRUCTURE,
* -FDT_ERR_BADLAYOUT,
* -FDT_ERR_TRUNCATED, standard meanings
*/
static inline int fdt_appendprop_u32(void *fdt, int nodeoffset,
const char *name, uint32_t val)
{
val = cpu_to_fdt32(val);
return fdt_appendprop(fdt, nodeoffset, name, &val, sizeof(val));
}
/**
* fdt_appendprop_u64 - append a 64-bit integer value to a property
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of the node whose property to change
* @name: name of the property to change
* @val: 64-bit integer value to append to the property (native endian)
*
* fdt_appendprop_u64() appends the given 64-bit integer value
* (converting to big-endian if necessary) to the value of the named
* property in the given node, or creates a new property with that
* value if it does not already exist.
*
* This function may insert data into the blob, and will therefore
* change the offsets of some existing nodes.
*
* returns:
* 0, on success
* -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
* contain the new property value
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
* -FDT_ERR_BADLAYOUT,
* -FDT_ERR_BADMAGIC,
* -FDT_ERR_BADVERSION,
* -FDT_ERR_BADSTATE,
* -FDT_ERR_BADSTRUCTURE,
* -FDT_ERR_BADLAYOUT,
* -FDT_ERR_TRUNCATED, standard meanings
*/
static inline int fdt_appendprop_u64(void *fdt, int nodeoffset,
const char *name, uint64_t val)
{
val = cpu_to_fdt64(val);
return fdt_appendprop(fdt, nodeoffset, name, &val, sizeof(val));
}
/**
* fdt_appendprop_cell - append a single cell value to a property
*
* This is an alternative name for fdt_appendprop_u32()
*/
static inline int fdt_appendprop_cell(void *fdt, int nodeoffset,
const char *name, uint32_t val)
{
return fdt_appendprop_u32(fdt, nodeoffset, name, val);
}
/**
* fdt_appendprop_string - append a string to a property
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of the node whose property to change
* @name: name of the property to change
* @str: string value to append to the property
*
* fdt_appendprop_string() appends the given string to the value of
* the named property in the given node, or creates a new property
* with that value if it does not already exist.
*
* This function may insert data into the blob, and will therefore
* change the offsets of some existing nodes.
*
* returns:
* 0, on success
* -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
* contain the new property value
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
* -FDT_ERR_BADLAYOUT,
* -FDT_ERR_BADMAGIC,
* -FDT_ERR_BADVERSION,
* -FDT_ERR_BADSTATE,
* -FDT_ERR_BADSTRUCTURE,
* -FDT_ERR_BADLAYOUT,
* -FDT_ERR_TRUNCATED, standard meanings
*/
#define fdt_appendprop_string(fdt, nodeoffset, name, str) \
fdt_appendprop((fdt), (nodeoffset), (name), (str), strlen(str)+1)
/**
* fdt_delprop - delete a property
* @fdt: pointer to the device tree blob

16
scripts/dtc/libfdt/libfdt_env.h
View file

@ -5,19 +5,25 @@
#include <stdint.h>
#include <string.h>
#define _B(n) ((unsigned long long)((uint8_t *)&x)[n])
#define EXTRACT_BYTE(n) ((unsigned long long)((uint8_t *)&x)[n])
static inline uint16_t fdt16_to_cpu(uint16_t x)
{
return (EXTRACT_BYTE(0) << 8) | EXTRACT_BYTE(1);
}
#define cpu_to_fdt16(x) fdt16_to_cpu(x)
static inline uint32_t fdt32_to_cpu(uint32_t x)
{
return (_B(0) << 24) | (_B(1) << 16) | (_B(2) << 8) | _B(3);
return (EXTRACT_BYTE(0) << 24) | (EXTRACT_BYTE(1) << 16) | (EXTRACT_BYTE(2) << 8) | EXTRACT_BYTE(3);
}
#define cpu_to_fdt32(x) fdt32_to_cpu(x)
static inline uint64_t fdt64_to_cpu(uint64_t x)
{
return (_B(0) << 56) | (_B(1) << 48) | (_B(2) << 40) | (_B(3) << 32)
| (_B(4) << 24) | (_B(5) << 16) | (_B(6) << 8) | _B(7);
return (EXTRACT_BYTE(0) << 56) | (EXTRACT_BYTE(1) << 48) | (EXTRACT_BYTE(2) << 40) | (EXTRACT_BYTE(3) << 32)
| (EXTRACT_BYTE(4) << 24) | (EXTRACT_BYTE(5) << 16) | (EXTRACT_BYTE(6) << 8) | EXTRACT_BYTE(7);
}
#define cpu_to_fdt64(x) fdt64_to_cpu(x)
#undef _B
#undef EXTRACT_BYTE
#endif /* _LIBFDT_ENV_H */

2
scripts/dtc/libfdt/libfdt_internal.h
View file

@ -62,8 +62,8 @@
return err; \
}
uint32_t _fdt_next_tag(const void *fdt, int startoffset, int *nextoffset);
int _fdt_check_node_offset(const void *fdt, int offset);
int _fdt_check_prop_offset(const void *fdt, int offset);
const char *_fdt_find_string(const char *strtab, int tabsize, const char *s);
int _fdt_node_end_offset(void *fdt, int nodeoffset);

128
scripts/dtc/livetree.c
View file

@ -29,16 +29,27 @@ void add_label(struct label **labels, char *label)
struct label *new;
/* Make sure the label isn't already there */
for_each_label(*labels, new)
if (streq(new->label, label))
for_each_label_withdel(*labels, new)
if (streq(new->label, label)) {
new->deleted = 0;
return;
}
new = xmalloc(sizeof(*new));
memset(new, 0, sizeof(*new));
new->label = label;
new->next = *labels;
*labels = new;
}
void delete_labels(struct label **labels)
{
struct label *label;
for_each_label(*labels, label)
label->deleted = 1;
}
struct property *build_property(char *name, struct data val)
{
struct property *new = xmalloc(sizeof(*new));
@ -51,6 +62,18 @@ struct property *build_property(char *name, struct data val)
return new;
}
struct property *build_property_delete(char *name)
{
struct property *new = xmalloc(sizeof(*new));
memset(new, 0, sizeof(*new));
new->name = name;
new->deleted = 1;
return new;
}
struct property *chain_property(struct property *first, struct property *list)
{
assert(first->next == NULL);
@ -91,6 +114,17 @@ struct node *build_node(struct property *proplist, struct node *children)
return new;
}
struct node *build_node_delete(void)
{
struct node *new = xmalloc(sizeof(*new));
memset(new, 0, sizeof(*new));
new->deleted = 1;
return new;
}
struct node *name_node(struct node *node, char *name)
{
assert(node->name == NULL);
@ -106,8 +140,10 @@ struct node *merge_nodes(struct node *old_node, struct node *new_node)
struct node *new_child, *old_child;
struct label *l;
old_node->deleted = 0;
/* Add new node labels to old node */
for_each_label(new_node->labels, l)
for_each_label_withdel(new_node->labels, l)
add_label(&old_node->labels, l->label);
/* Move properties from the new node to the old node. If there
@ -118,14 +154,21 @@ struct node *merge_nodes(struct node *old_node, struct node *new_node)
new_node->proplist = new_prop->next;
new_prop->next = NULL;
if (new_prop->deleted) {
delete_property_by_name(old_node, new_prop->name);
free(new_prop);
continue;
}
/* Look for a collision, set new value if there is */
for_each_property(old_node, old_prop) {
for_each_property_withdel(old_node, old_prop) {
if (streq(old_prop->name, new_prop->name)) {
/* Add new labels to old property */
for_each_label(new_prop->labels, l)
for_each_label_withdel(new_prop->labels, l)
add_label(&old_prop->labels, l->label);
old_prop->val = new_prop->val;
old_prop->deleted = 0;
free(new_prop);
new_prop = NULL;
break;
@ -146,8 +189,14 @@ struct node *merge_nodes(struct node *old_node, struct node *new_node)
new_child->parent = NULL;
new_child->next_sibling = NULL;
if (new_child->deleted) {
delete_node_by_name(old_node, new_child->name);
free(new_child);
continue;
}
/* Search for a collision. Merge if there is */
for_each_child(old_node, old_child) {
for_each_child_withdel(old_node, old_child) {
if (streq(old_child->name, new_child->name)) {
merge_nodes(old_child, new_child);
new_child = NULL;
@ -155,7 +204,7 @@ struct node *merge_nodes(struct node *old_node, struct node *new_node)
}
}
/* if no collision occurred, add child to the old node. */
/* if no collision occured, add child to the old node. */
if (new_child)
add_child(old_node, new_child);
}
@ -188,6 +237,25 @@ void add_property(struct node *node, struct property *prop)
*p = prop;
}
void delete_property_by_name(struct node *node, char *name)
{
struct property *prop = node->proplist;
while (prop) {
if (!strcmp(prop->name, name)) {
delete_property(prop);
return;
}
prop = prop->next;
}
}
void delete_property(struct property *prop)
{
prop->deleted = 1;
delete_labels(&prop->labels);
}
void add_child(struct node *parent, struct node *child)
{
struct node **p;
@ -202,6 +270,32 @@ void add_child(struct node *parent, struct node *child)
*p = child;
}
void delete_node_by_name(struct node *parent, char *name)
{
struct node *node = parent->children;
while (node) {
if (!strcmp(node->name, name)) {
delete_node(node);
return;
}
node = node->next_sibling;
}
}
void delete_node(struct node *node)
{
struct property *prop;
struct node *child;
node->deleted = 1;
for_each_child(node, child)
delete_node(child);
for_each_property(node, prop)
delete_property(prop);
delete_labels(&node->labels);
}
struct reserve_info *build_reserve_entry(uint64_t address, uint64_t size)
{
struct reserve_info *new = xmalloc(sizeof(*new));
@ -353,8 +447,11 @@ struct node *get_node_by_path(struct node *tree, const char *path)
const char *p;
struct node *child;
if (!path || ! (*path))
if (!path || ! (*path)) {
if (tree->deleted)
return NULL;
return tree;
}
while (path[0] == '/')
path++;
@ -397,8 +494,11 @@ struct node *get_node_by_phandle(struct node *tree, cell_t phandle)
assert((phandle != 0) && (phandle != -1));
if (tree->phandle == phandle)
if (tree->phandle == phandle) {
if (tree->deleted)
return NULL;
return tree;
}
for_each_child(tree, child) {
node = get_node_by_phandle(child, phandle);
@ -535,7 +635,7 @@ static void sort_properties(struct node *node)
int n = 0, i = 0;
struct property *prop, **tbl;
for_each_property(node, prop)
for_each_property_withdel(node, prop)
n++;
if (n == 0)
@ -543,7 +643,7 @@ static void sort_properties(struct node *node)
tbl = xmalloc(n * sizeof(*tbl));
for_each_property(node, prop)
for_each_property_withdel(node, prop)
tbl[i++] = prop;
qsort(tbl, n, sizeof(*tbl), cmp_prop);
@ -571,7 +671,7 @@ static void sort_subnodes(struct node *node)
int n = 0, i = 0;
struct node *subnode, **tbl;
for_each_child(node, subnode)
for_each_child_withdel(node, subnode)
n++;
if (n == 0)
@ -579,7 +679,7 @@ static void sort_subnodes(struct node *node)
tbl = xmalloc(n * sizeof(*tbl));
for_each_child(node, subnode)
for_each_child_withdel(node, subnode)
tbl[i++] = subnode;
qsort(tbl, n, sizeof(*tbl), cmp_subnode);
@ -598,7 +698,7 @@ static void sort_node(struct node *node)
sort_properties(node);
sort_subnodes(node);
for_each_child(node, c)
for_each_child_withdel(node, c)
sort_node(c);
}

98
scripts/dtc/srcpos.c
View file

@ -24,6 +24,15 @@
#include "dtc.h"
#include "srcpos.h"
/* A node in our list of directories to search for source/include files */
struct search_path {
struct search_path *next; /* next node in list, NULL for end */
const char *dirname; /* name of directory to search */
};
/* This is the list of directories that we search for source files */
static struct search_path *search_path_head, **search_path_tail;
static char *dirname(const char *path)
{
@ -47,6 +56,64 @@ struct srcfile_state *current_srcfile; /* = NULL */
#define MAX_SRCFILE_DEPTH (100)
static int srcfile_depth; /* = 0 */
/**
* Try to open a file in a given directory.
*
* If the filename is an absolute path, then dirname is ignored. If it is a
* relative path, then we look in that directory for the file.
*
* @param dirname Directory to look in, or NULL for none
* @param fname Filename to look for
* @param fp Set to NULL if file did not open
* @return allocated filename on success (caller must free), NULL on failure
*/
static char *try_open(const char *dirname, const char *fname, FILE **fp)
{
char *fullname;
if (!dirname || fname[0] == '/')
fullname = xstrdup(fname);
else
fullname = join_path(dirname, fname);
*fp = fopen(fullname, "r");
if (!*fp) {
free(fullname);
fullname = NULL;
}
return fullname;
}
/**
* Open a file for read access
*
* If it is a relative filename, we search the full search path for it.
*
* @param fname Filename to open
* @param fp Returns pointer to opened FILE, or NULL on failure
* @return pointer to allocated filename, which caller must free
*/
static char *fopen_any_on_path(const char *fname, FILE **fp)
{
const char *cur_dir = NULL;
struct search_path *node;
char *fullname;
/* Try current directory first */
assert(fp);
if (current_srcfile)
cur_dir = current_srcfile->dir;
fullname = try_open(cur_dir, fname, fp);
/* Failing that, try each search path in turn */
for (node = search_path_head; !*fp && node; node = node->next)
fullname = try_open(node->dirname, fname, fp);
return fullname;
}
FILE *srcfile_relative_open(const char *fname, char **fullnamep)
{
FILE *f;
@ -56,13 +123,7 @@ FILE *srcfile_relative_open(const char *fname, char **fullnamep)
f = stdin;
fullname = xstrdup("<stdin>");
} else {
if (!current_srcfile || !current_srcfile->dir
|| (fname[0] == '/'))
fullname = xstrdup(fname);
else
fullname = join_path(current_srcfile->dir, fname);
f = fopen(fullname, "r");
fullname = fopen_any_on_path(fname, &f);
if (!f)
die("Couldn't open \"%s\": %s\n", fname,
strerror(errno));
@ -119,6 +180,23 @@ int srcfile_pop(void)
return current_srcfile ? 1 : 0;
}
void srcfile_add_search_path(const char *dirname)
{
struct search_path *node;
/* Create the node */
node = xmalloc(sizeof(*node));
node->next = NULL;
node->dirname = xstrdup(dirname);
/* Add to the end of our list */
if (search_path_tail)
*search_path_tail = node;
else
search_path_head = node;
search_path_tail = &node->next;
}
/*
* The empty source position.
*/
@ -250,3 +328,9 @@ srcpos_warn(struct srcpos *pos, char const *fmt, ...)
va_end(va);
}
void srcpos_set_line(char *f, int l)
{
current_srcfile->name = f;
current_srcfile->lineno = l;
}

31
scripts/dtc/srcpos.h
View file

@ -33,10 +33,39 @@ struct srcfile_state {
extern FILE *depfile; /* = NULL */
extern struct srcfile_state *current_srcfile; /* = NULL */
/**
* Open a source file.
*
* If the source file is a relative pathname, then it is searched for in the
* current directory (the directory of the last source file read) and after
* that in the search path.
*
* We work through the search path in order from the first path specified to
* the last.
*
* If the file is not found, then this function does not return, but calls
* die().
*
* @param fname Filename to search
* @param fullnamep If non-NULL, it is set to the allocated filename of the
* file that was opened. The caller is then responsible
* for freeing the pointer.
* @return pointer to opened FILE
*/
FILE *srcfile_relative_open(const char *fname, char **fullnamep);
void srcfile_push(const char *fname);
int srcfile_pop(void);
/**
* Add a new directory to the search path for input files
*
* The new path is added at the end of the list.
*
* @param dirname Directory to add
*/
void srcfile_add_search_path(const char *dirname);
struct srcpos {
int first_line;
int first_column;
@ -84,4 +113,6 @@ extern void srcpos_error(struct srcpos *pos, char const *, ...)
extern void srcpos_warn(struct srcpos *pos, char const *, ...)
__attribute__((format(printf, 2, 3)));
extern void srcpos_set_line(char *f, int l);
#endif /* _SRCPOS_H_ */

2
scripts/dtc/treesource.c
View file

@ -23,6 +23,7 @@
extern FILE *yyin;
extern int yyparse(void);
extern YYLTYPE yylloc;
struct boot_info *the_boot_info;
int treesource_error;
@ -34,6 +35,7 @@ struct boot_info *dt_from_source(const char *fname)
srcfile_push(fname);
yyin = current_srcfile->f;
yylloc.file = current_srcfile;
if (yyparse() != 0)
die("Unable to parse input tree\n");

272
scripts/dtc/util.c
View file

@ -1,6 +1,10 @@
/*
* Copyright 2011 The Chromium Authors, All Rights Reserved.
* Copyright 2008 Jon Loeliger, Freescale Semiconductor, Inc.
*
* util_is_printable_string contributed by
* Pantelis Antoniou <pantelis.antoniou AT gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
@ -17,11 +21,18 @@
* USA
*/
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include "libfdt.h"
#include "util.h"
char *xstrdup(const char *s)
@ -57,3 +68,264 @@ char *join_path(const char *path, const char *name)
memcpy(str+lenp, name, lenn+1);
return str;
}
int util_is_printable_string(const void *data, int len)
{
const char *s = data;
const char *ss;
/* zero length is not */
if (len == 0)
return 0;
/* must terminate with zero */
if (s[len - 1] != '\0')
return 0;
ss = s;
while (*s && isprint(*s))
s++;
/* not zero, or not done yet */
if (*s != '\0' || (s + 1 - ss) < len)
return 0;
return 1;
}
/*
* Parse a octal encoded character starting at index i in string s. The
* resulting character will be returned and the index i will be updated to
* point at the character directly after the end of the encoding, this may be
* the '\0' terminator of the string.
*/
static char get_oct_char(const char *s, int *i)
{
char x[4];
char *endx;
long val;
x[3] = '\0';
strncpy(x, s + *i, 3);
val = strtol(x, &endx, 8);
assert(endx > x);
(*i) += endx - x;
return val;
}
/*
* Parse a hexadecimal encoded character starting at index i in string s. The
* resulting character will be returned and the index i will be updated to
* point at the character directly after the end of the encoding, this may be
* the '\0' terminator of the string.
*/
static char get_hex_char(const char *s, int *i)
{
char x[3];
char *endx;
long val;
x[2] = '\0';
strncpy(x, s + *i, 2);
val = strtol(x, &endx, 16);
if (!(endx > x))
die("\\x used with no following hex digits\n");
(*i) += endx - x;
return val;
}
char get_escape_char(const char *s, int *i)
{
char c = s[*i];
int j = *i + 1;
char val;
assert(c);
switch (c) {
case 'a':
val = '\a';
break;
case 'b':
val = '\b';
break;
case 't':
val = '\t';
break;
case 'n':
val = '\n';
break;
case 'v':
val = '\v';
break;
case 'f':
val = '\f';
break;
case 'r':
val = '\r';
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
j--; /* need to re-read the first digit as
* part of the octal value */
val = get_oct_char(s, &j);
break;
case 'x':
val = get_hex_char(s, &j);
break;
default:
val = c;
}
(*i) = j;
return val;
}
int utilfdt_read_err(const char *filename, char **buffp)
{
int fd = 0; /* assume stdin */
char *buf = NULL;
off_t bufsize = 1024, offset = 0;
int ret = 0;
*buffp = NULL;
if (strcmp(filename, "-") != 0) {
fd = open(filename, O_RDONLY);
if (fd < 0)
return errno;
}
/* Loop until we have read everything */
buf = malloc(bufsize);
do {
/* Expand the buffer to hold the next chunk */
if (offset == bufsize) {
bufsize *= 2;
buf = realloc(buf, bufsize);
if (!buf) {
ret = ENOMEM;
break;
}
}
ret = read(fd, &buf[offset], bufsize - offset);
if (ret < 0) {
ret = errno;
break;
}
offset += ret;
} while (ret != 0);
/* Clean up, including closing stdin; return errno on error */
close(fd);
if (ret)
free(buf);
else
*buffp = buf;
return ret;
}
char *utilfdt_read(const char *filename)
{
char *buff;
int ret = utilfdt_read_err(filename, &buff);
if (ret) {
fprintf(stderr, "Couldn't open blob from '%s': %s\n", filename,
strerror(ret));
return NULL;
}
/* Successful read */
return buff;
}
int utilfdt_write_err(const char *filename, const void *blob)
{
int fd = 1; /* assume stdout */
int totalsize;
int offset;
int ret = 0;
const char *ptr = blob;
if (strcmp(filename, "-") != 0) {
fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (fd < 0)
return errno;
}
totalsize = fdt_totalsize(blob);
offset = 0;
while (offset < totalsize) {
ret = write(fd, ptr + offset, totalsize - offset);
if (ret < 0) {
ret = -errno;
break;
}
offset += ret;
}
/* Close the file/stdin; return errno on error */
if (fd != 1)
close(fd);
return ret < 0 ? -ret : 0;
}
int utilfdt_write(const char *filename, const void *blob)
{
int ret = utilfdt_write_err(filename, blob);
if (ret) {
fprintf(stderr, "Couldn't write blob to '%s': %s\n", filename,
strerror(ret));
}
return ret ? -1 : 0;
}
int utilfdt_decode_type(const char *fmt, int *type, int *size)
{
int qualifier = 0;
if (!*fmt)
return -1;
/* get the conversion qualifier */
*size = -1;
if (strchr("hlLb", *fmt)) {
qualifier = *fmt++;
if (qualifier == *fmt) {
switch (*fmt++) {
/* TODO: case 'l': qualifier = 'L'; break;*/
case 'h':
qualifier = 'b';
break;
}
}
}
/* we should now have a type */
if ((*fmt == '\0') || !strchr("iuxs", *fmt))
return -1;
/* convert qualifier (bhL) to byte size */
if (*fmt != 's')
*size = qualifier == 'b' ? 1 :
qualifier == 'h' ? 2 :
qualifier == 'l' ? 4 : -1;
*type = *fmt++;
/* that should be it! */
if (*fmt)
return -1;
return 0;
}

97
scripts/dtc/util.h
View file

@ -1,7 +1,10 @@
#ifndef _UTIL_H
#define _UTIL_H
#include <stdarg.h>
/*
* Copyright 2011 The Chromium Authors, All Rights Reserved.
* Copyright 2008 Jon Loeliger, Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or
@ -53,4 +56,98 @@ static inline void *xrealloc(void *p, size_t len)
extern char *xstrdup(const char *s);
extern char *join_path(const char *path, const char *name);
/**
* Check a string of a given length to see if it is all printable and
* has a valid terminator.
*
* @param data The string to check
* @param len The string length including terminator
* @return 1 if a valid printable string, 0 if not */
int util_is_printable_string(const void *data, int len);
/*
* Parse an escaped character starting at index i in string s. The resulting
* character will be returned and the index i will be updated to point at the
* character directly after the end of the encoding, this may be the '\0'
* terminator of the string.
*/
char get_escape_char(const char *s, int *i);
/**
* Read a device tree file into a buffer. This will report any errors on
* stderr.
*
* @param filename The filename to read, or - for stdin
* @return Pointer to allocated buffer containing fdt, or NULL on error
*/
char *utilfdt_read(const char *filename);
/**
* Read a device tree file into a buffer. Does not report errors, but only
* returns them. The value returned can be passed to strerror() to obtain
* an error message for the user.
*
* @param filename The filename to read, or - for stdin
* @param buffp Returns pointer to buffer containing fdt
* @return 0 if ok, else an errno value representing the error
*/
int utilfdt_read_err(const char *filename, char **buffp);
/**
* Write a device tree buffer to a file. This will report any errors on
* stderr.
*
* @param filename The filename to write, or - for stdout
* @param blob Poiner to buffer containing fdt
* @return 0 if ok, -1 on error
*/
int utilfdt_write(const char *filename, const void *blob);
/**
* Write a device tree buffer to a file. Does not report errors, but only
* returns them. The value returned can be passed to strerror() to obtain
* an error message for the user.
*
* @param filename The filename to write, or - for stdout
* @param blob Poiner to buffer containing fdt
* @return 0 if ok, else an errno value representing the error
*/
int utilfdt_write_err(const char *filename, const void *blob);
/**
* Decode a data type string. The purpose of this string
*
* The string consists of an optional character followed by the type:
* Modifier characters:
* hh or b 1 byte
* h 2 byte
* l 4 byte, default
*
* Type character:
* s string
* i signed integer
* u unsigned integer
* x hex
*
* TODO: Implement ll modifier (8 bytes)
* TODO: Implement o type (octal)
*
* @param fmt Format string to process
* @param type Returns type found(s/d/u/x), or 0 if none
* @param size Returns size found(1,2,4,8) or 4 if none
* @return 0 if ok, -1 on error (no type given, or other invalid format)
*/
int utilfdt_decode_type(const char *fmt, int *type, int *size);
/*
* This is a usage message fragment for the -t option. It is the format
* supported by utilfdt_decode_type.
*/
#define USAGE_TYPE_MSG \
"<type>\ts=string, i=int, u=unsigned, x=hex\n" \
"\tOptional modifier prefix:\n" \
"\t\thh or b=byte, h=2 byte, l=4 byte (default)\n";
#endif /* _UTIL_H */