#ifndef __event_h
#define __event_h
+#include <dm/ofnode_decl.h>
+#include <linux/types.h>
+
/**
* enum event_t - Types of events supported by U-Boot
*
* @EVT_DM_PRE_PROBE: Device is about to be probed
*/
enum event_t {
- EVT_NONE,
+ /**
+ * @EVT_NONE: This zero value is not used for events.
+ */
+ EVT_NONE = 0,
+
+ /**
+ * @EVT_TEST: This event is used in unit tests.
+ */
EVT_TEST,
- /* Events related to driver model */
- EVT_DM_POST_INIT,
+ /**
+ * @EVT_DM_POST_INIT_F:
+ * This event is triggered after pre-relocation initialization of the
+ * driver model. Its parameter is NULL.
+ * A non-zero return code from the event handler let's the boot process
+ * fail.
+ */
+ EVT_DM_POST_INIT_F,
+
+ /**
+ * @EVT_DM_POST_INIT_R:
+ * This event is triggered after post-relocation initialization of the
+ * driver model. Its parameter is NULL.
+ * A non-zero return code from the event handler let's the boot process
+ * fail.
+ */
+ EVT_DM_POST_INIT_R,
+
+ /**
+ * @EVT_DM_PRE_PROBE:
+ * This event is triggered before probing a device. Its parameter is the
+ * device to be probed.
+ * A non-zero return code from the event handler lets the device not
+ * being probed.
+ */
EVT_DM_PRE_PROBE,
+
+ /**
+ * @EVT_DM_POST_PROBE:
+ * This event is triggered after probing a device. Its parameter is the
+ * device that was probed.
+ * A non-zero return code from the event handler leaves the device in
+ * the unprobed state and therefore not usable.
+ */
EVT_DM_POST_PROBE,
+
+ /**
+ * @EVT_DM_PRE_REMOVE:
+ * This event is triggered after removing a device. Its parameter is
+ * the device to be removed.
+ * A non-zero return code from the event handler stops the removal of
+ * the device before any changes.
+ */
EVT_DM_PRE_REMOVE,
+
+ /**
+ * @EVT_DM_POST_REMOVE:
+ * This event is triggered before removing a device. Its parameter is
+ * the device that was removed.
+ * A non-zero return code stops from the event handler the removal of
+ * the device after all removal changes. The previous state is not
+ * restored. All children will be gone and the device may not be
+ * functional.
+ */
EVT_DM_POST_REMOVE,
- /* Init hooks */
+ /**
+ * @EVT_MISC_INIT_F:
+ * This event is triggered during the initialization sequence before
+ * relocation. Its parameter is NULL.
+ * A non-zero return code from the event handler let's the boot process
+ * fail.
+ */
EVT_MISC_INIT_F,
+ /*
+ * Emitted before relocation to set up Firmware Support Package
+ *
+ * Where U-Boot relies on binary blobs to handle part of the system
+ * init, this event can be used to set up the blobs. This is used on
+ * some Intel platforms
+ */
+ EVT_FSP_INIT_F,
+
+ /*
+ * Emitted just before jumping to the main loop
+ *
+ * Some boards need to perform initialisation immediately before control
+ * is passed to the command-line interpreter (e.g. for init that depend
+ * on later phases in the init sequence).
+ *
+ * Some parts can be only initialized if all others (like Interrupts)
+ * are up and running (e.g. the PC-style ISA keyboard).
+ */
+ EVT_LAST_STAGE_INIT,
+
+ /**
+ * @EVT_FPGA_LOAD:
+ * The FPGA load hook is called after loading an FPGA with a new binary.
+ * Its parameter is of type struct event_fpga_load and contains
+ * information about the loaded image.
+ */
+ EVT_FPGA_LOAD,
+
+ /**
+ * @EVT_FT_FIXUP:
+ * This event is triggered during device-tree fix up after all
+ * other device-tree fixups have been executed.
+ * Its parameter is of type struct event_ft_fixup which contains
+ * the address of the device-tree to fix up and the list of images to be
+ * booted.
+ * A non-zero return code from the event handler let's booting the
+ * images fail.
+ */
+ EVT_FT_FIXUP,
+
+ /**
+ * @EVT_MAIN_LOOP:
+ * This event is triggered immediately before calling main_loop() which
+ * is the entry point of the command line. Its parameter is NULL.
+ * A non-zero return value causes the boot to fail.
+ */
+ EVT_MAIN_LOOP,
+
+ /**
+ * @EVT_COUNT:
+ * This constants holds the maximum event number + 1 and is used when
+ * looping over all event classes.
+ */
EVT_COUNT
};
struct event_dm {
struct udevice *dev;
} dm;
+
+ /**
+ * struct event_fpga_load - fpga load event
+ *
+ * @buf: The buffer that was loaded into the fpga
+ * @bsize: The size of the buffer that was loaded into the fpga
+ * @result: Result of the load operation
+ */
+ struct event_fpga_load {
+ const void *buf;
+ size_t bsize;
+ int result;
+ } fpga_load;
+
+ /**
+ * struct event_ft_fixup - FDT fixup before booting
+ *
+ * @tree: tree to update
+ * @images: images which are being booted
+ */
+ struct event_ft_fixup {
+ oftree tree;
+ struct bootm_headers *images;
+ } ft_fixup;
};
/**
union event_data data;
};
+/* Flags for event spy */
+enum evspy_flags {
+ EVSPYF_SIMPLE = 1 << 0,
+};
+
/** Function type for event handlers */
typedef int (*event_handler_t)(void *ctx, struct event *event);
+/** Function type for simple event handlers */
+typedef int (*event_handler_simple_t)(void);
+
/**
* struct evspy_info - information about an event spy
*
* @func: Function to call when the event is activated (must be first)
* @type: Event type
+ * @flag: Flags for this spy
* @id: Event id string
*/
struct evspy_info {
event_handler_t func;
- enum event_t type;
+ u8 type;
+ u8 flags;
+#if CONFIG_IS_ENABLED(EVENT_DEBUG)
+ const char *id;
+#endif
+};
+
+/**
+ * struct evspy_info_simple - information about an event spy
+ *
+ * THis is the 'simple' record, the only difference being the handler function
+ *
+ * @func: Function to call when the event is activated (must be first)
+ * @type: Event type
+ * @flag: Flags for this spy
+ * @id: Event id string
+ */
+struct evspy_info_simple {
+ event_handler_simple_t func;
+ u8 type;
+ u8 flags;
#if CONFIG_IS_ENABLED(EVENT_DEBUG)
const char *id;
#endif
/* Declare a new event spy */
#if CONFIG_IS_ENABLED(EVENT_DEBUG)
-#define _ESPY_REC(_type, _func) { _func, _type, #_func, }
+#define _ESPY_REC(_type, _func) { _func, _type, 0, #_func, }
+#define _ESPY_REC_SIMPLE(_type, _func) { _func, _type, EVSPYF_SIMPLE, #_func, }
#else
#define _ESPY_REC(_type, _func) { _func, _type, }
+#define _ESPY_REC_SIMPLE(_type, _func) { _func, _type, EVSPYF_SIMPLE }
#endif
static inline const char *event_spy_id(struct evspy_info *spy)
* The only solution I can think of is to mark linker-list entries as 'used'
* using an attribute. This should be safe, since we don't actually want to drop
* any of these. However this does slightly limit LTO's optimisation choices.
+ *
+ * Another issue has come up, only with clang: using 'static' makes it throw
+ * away the linker-list entry sometimes, e.g. with the EVT_FT_FIXUP entry in
+ * vbe_simple.c - so for now, make it global.
*/
-#define EVENT_SPY(_type, _func) \
- static __attribute__((used)) ll_entry_declare(struct evspy_info, \
- _type, evspy_info) = \
- _ESPY_REC(_type, _func)
+#define EVENT_SPY_FULL(_type, _func) \
+ __used ll_entry_declare(struct evspy_info, _type ## _3_ ## _func, \
+ evspy_info) = _ESPY_REC(_type, _func)
+
+/* Simple spy with no function arguemnts */
+#define EVENT_SPY_SIMPLE(_type, _func) \
+ __used ll_entry_declare(struct evspy_info_simple, \
+ _type ## _3_ ## _func, \
+ evspy_info) = _ESPY_REC_SIMPLE(_type, _func)
/**
* event_register - register a new spy
int event_register(const char *id, enum event_t type, event_handler_t func,
void *ctx);
-#if CONFIG_IS_ENABLED(EVENT)
+/** event_show_spy_list( - Show a list of event spies */
+void event_show_spy_list(void);
+
+/**
+ * event_manual_reloc() - Relocate event handler pointers
+ *
+ * Relocate event handler pointers for all static event spies. It is called
+ * during the generic board init sequence, after relocation.
+ *
+ * Return: 0 if OK
+ */
+int event_manual_reloc(void);
+
+/**
+ * event_type_name() - Get the name of an event type
+ *
+ * @type: Type to check
+ * Return: Name of event, or "(unknown)" if not known
+ */
+const char *event_type_name(enum event_t type);
+
/**
* event_notify() - notify spies about an event
*
*/
int event_notify(enum event_t type, void *data, int size);
+#if CONFIG_IS_ENABLED(EVENT)
/**
* event_notify_null() - notify spies about an event
*
*/
int event_notify_null(enum event_t type);
#else
-static inline int event_notify(enum event_t type, void *data, int size)
-{
- return 0;
-}
-
static inline int event_notify_null(enum event_t type)
{
return 0;
projects / J-u-boot.git / blobdiff