target: Use target_addr_t for algorithm addresses.
[openocd.git] / src / target / target.c
index 686aa5157f21af4f4331243c2bf1d17860e743d9..ed6f655eac68607285030188b894db34141a4979 100644 (file)
@@ -41,6 +41,7 @@
 #include "config.h"
 #endif
 
+#include <helper/align.h>
 #include <helper/time_support.h>
 #include <jtag/jtag.h>
 #include <flash/nor/core.h>
@@ -154,9 +155,10 @@ static struct target_type *target_types[] = {
 struct target *all_targets;
 static struct target_event_callback *target_event_callbacks;
 static struct target_timer_callback *target_timer_callbacks;
+static int64_t target_timer_next_event_value;
 static LIST_HEAD(target_reset_callback_list);
 static LIST_HEAD(target_trace_callback_list);
-static const int polling_interval = 100;
+static const int polling_interval = TARGET_DEFAULT_POLLING_INTERVAL;
 
 static const struct jim_nvp nvp_assert[] = {
        { .name = "assert", NVP_ASSERT },
@@ -484,7 +486,7 @@ struct target *get_target(const char *id)
 
        /* try as tcltarget name */
        for (target = all_targets; target; target = target->next) {
-               if (target_name(target) == NULL)
+               if (!target_name(target))
                        continue;
                if (strcmp(id, target_name(target)) == 0)
                        return target;
@@ -715,6 +717,15 @@ static int no_mmu(struct target *target, int *enabled)
        return ERROR_OK;
 }
 
+/**
+ * Reset the @c examined flag for the given target.
+ * Pure paranoia -- targets are zeroed on allocation.
+ */
+static inline void target_reset_examined(struct target *target)
+{
+       target->examined = false;
+}
+
 static int default_examine(struct target *target)
 {
        target_set_examined(target);
@@ -735,10 +746,12 @@ int target_examine_one(struct target *target)
 
        int retval = target->type->examine(target);
        if (retval != ERROR_OK) {
+               target_reset_examined(target);
                target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_FAIL);
                return retval;
        }
 
+       target_set_examined(target);
        target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
 
        return ERROR_OK;
@@ -826,7 +839,7 @@ static int target_soft_reset_halt(struct target *target)
 int target_run_algorithm(struct target *target,
                int num_mem_params, struct mem_param *mem_params,
                int num_reg_params, struct reg_param *reg_param,
-               uint32_t entry_point, uint32_t exit_point,
+               target_addr_t entry_point, target_addr_t exit_point,
                int timeout_ms, void *arch_info)
 {
        int retval = ERROR_FAIL;
@@ -867,7 +880,7 @@ done:
 int target_start_algorithm(struct target *target,
                int num_mem_params, struct mem_param *mem_params,
                int num_reg_params, struct reg_param *reg_params,
-               uint32_t entry_point, uint32_t exit_point,
+               target_addr_t entry_point, target_addr_t exit_point,
                void *arch_info)
 {
        int retval = ERROR_FAIL;
@@ -911,7 +924,7 @@ done:
 int target_wait_algorithm(struct target *target,
                int num_mem_params, struct mem_param *mem_params,
                int num_reg_params, struct reg_param *reg_params,
-               uint32_t exit_point, int timeout_ms,
+               target_addr_t exit_point, int timeout_ms,
                void *arch_info)
 {
        int retval = ERROR_FAIL;
@@ -1003,7 +1016,7 @@ int target_run_flash_async_algorithm(struct target *target,
        uint32_t rp = fifo_start_addr;
 
        /* validate block_size is 2^n */
-       assert(!block_size || !(block_size & (block_size - 1)));
+       assert(IS_PWR_OF_2(block_size));
 
        retval = target_write_u32(target, wp_addr, wp);
        if (retval != ERROR_OK)
@@ -1041,7 +1054,7 @@ int target_run_flash_async_algorithm(struct target *target,
                        break;
                }
 
-               if (((rp - fifo_start_addr) & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) {
+               if (!IS_ALIGNED(rp - fifo_start_addr, block_size) || rp < fifo_start_addr || rp >= fifo_end_addr) {
                        LOG_ERROR("corrupted fifo read pointer 0x%" PRIx32, rp);
                        break;
                }
@@ -1156,7 +1169,7 @@ int target_run_read_async_algorithm(struct target *target,
        uint32_t rp = fifo_start_addr;
 
        /* validate block_size is 2^n */
-       assert(!block_size || !(block_size & (block_size - 1)));
+       assert(IS_PWR_OF_2(block_size));
 
        retval = target_write_u32(target, wp_addr, wp);
        if (retval != ERROR_OK)
@@ -1193,7 +1206,7 @@ int target_run_read_async_algorithm(struct target *target,
                        break;
                }
 
-               if (((wp - fifo_start_addr) & (block_size - 1)) || wp < fifo_start_addr || wp >= fifo_end_addr) {
+               if (!IS_ALIGNED(wp - fifo_start_addr, block_size) || wp < fifo_start_addr || wp >= fifo_end_addr) {
                        LOG_ERROR("corrupted fifo write pointer 0x%" PRIx32, wp);
                        break;
                }
@@ -1520,15 +1533,6 @@ static int target_profiling(struct target *target, uint32_t *samples,
                        num_samples, seconds);
 }
 
-/**
- * Reset the @c examined flag for the given target.
- * Pure paranoia -- targets are zeroed on allocation.
- */
-static void target_reset_examined(struct target *target)
-{
-       target->examined = false;
-}
-
 static int handle_target(void *priv);
 
 static int target_init_one(struct command_context *cmd_ctx,
@@ -1733,8 +1737,8 @@ int target_register_timer_callback(int (*callback)(void *priv),
        (*callbacks_p)->time_ms = time_ms;
        (*callbacks_p)->removed = false;
 
-       gettimeofday(&(*callbacks_p)->when, NULL);
-       timeval_add_time(&(*callbacks_p)->when, 0, time_ms * 1000);
+       (*callbacks_p)->when = timeval_ms() + time_ms;
+       target_timer_next_event_value = MIN(target_timer_next_event_value, (*callbacks_p)->when);
 
        (*callbacks_p)->priv = priv;
        (*callbacks_p)->next = NULL;
@@ -1868,15 +1872,14 @@ int target_call_trace_callbacks(struct target *target, size_t len, uint8_t *data
 }
 
 static int target_timer_callback_periodic_restart(
-               struct target_timer_callback *cb, struct timeval *now)
+               struct target_timer_callback *cb, int64_t *now)
 {
-       cb->when = *now;
-       timeval_add_time(&cb->when, 0, cb->time_ms * 1000L);
+       cb->when = *now + cb->time_ms;
        return ERROR_OK;
 }
 
 static int target_call_timer_callback(struct target_timer_callback *cb,
-               struct timeval *now)
+               int64_t *now)
 {
        cb->callback(cb->priv);
 
@@ -1898,8 +1901,12 @@ static int target_call_timer_callbacks_check_time(int checktime)
 
        keep_alive();
 
-       struct timeval now;
-       gettimeofday(&now, NULL);
+       int64_t now = timeval_ms();
+
+       /* Initialize to a default value that's a ways into the future.
+        * The loop below will make it closer to now if there are
+        * callbacks that want to be called sooner. */
+       target_timer_next_event_value = now + 1000;
 
        /* Store an address of the place containing a pointer to the
         * next item; initially, that's a standalone "root of the
@@ -1915,11 +1922,14 @@ static int target_call_timer_callbacks_check_time(int checktime)
 
                bool call_it = (*callback)->callback &&
                        ((!checktime && (*callback)->type == TARGET_TIMER_TYPE_PERIODIC) ||
-                        timeval_compare(&now, &(*callback)->when) >= 0);
+                        now >= (*callback)->when);
 
                if (call_it)
                        target_call_timer_callback(*callback, &now);
 
+               if (!(*callback)->removed && (*callback)->when < target_timer_next_event_value)
+                       target_timer_next_event_value = (*callback)->when;
+
                callback = &(*callback)->next;
        }
 
@@ -1927,17 +1937,22 @@ static int target_call_timer_callbacks_check_time(int checktime)
        return ERROR_OK;
 }
 
-int target_call_timer_callbacks(void)
+int target_call_timer_callbacks()
 {
        return target_call_timer_callbacks_check_time(1);
 }
 
 /* invoke periodic callbacks immediately */
-int target_call_timer_callbacks_now(void)
+int target_call_timer_callbacks_now()
 {
        return target_call_timer_callbacks_check_time(0);
 }
 
+int64_t target_timer_next_event(void)
+{
+       return target_timer_next_event_value;
+}
+
 /* Prints the working area layout for debug purposes */
 static void print_wa_layout(struct target *target)
 {
@@ -3042,7 +3057,7 @@ static int handle_target(void *priv)
                                /* Target examination could have failed due to unstable connection,
                                 * but we set the examined flag anyway to repoll it later */
                                if (retval != ERROR_OK) {
-                                       target->examined = true;
+                                       target_set_examined(target);
                                        LOG_USER("Examination failed, GDB will be halted. Polling again in %dms",
                                                 target->backoff.times * polling_interval);
                                        return retval;
@@ -4970,7 +4985,7 @@ no_params:
                                if (goi->isconfigure) {
                                        /* START_DEPRECATED_TPIU */
                                        if (n->value == TARGET_EVENT_TRACE_CONFIG)
-                                               LOG_INFO("DEPRECATED target event %s", n->name);
+                                               LOG_INFO("DEPRECATED target event %s; use TPIU events {pre,post}-{enable,disable}", n->name);
                                        /* END_DEPRECATED_TPIU */
 
                                        bool replace = true;
@@ -5295,8 +5310,13 @@ static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv
        }
 
        int e = target->type->examine(target);
-       if (e != ERROR_OK)
+       if (e != ERROR_OK) {
+               target_reset_examined(target);
                return JIM_ERR;
+       }
+
+       target_set_examined(target);
+
        return JIM_OK;
 }
 
@@ -5702,7 +5722,7 @@ static int target_create(struct jim_getopt_info *goi)
        /* COMMAND */
        jim_getopt_obj(goi, &new_cmd);
        /* does this command exist? */
-       cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
+       cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_NONE);
        if (cmd) {
                cp = Jim_GetString(new_cmd, NULL);
                Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
@@ -5724,7 +5744,7 @@ static int target_create(struct jim_getopt_info *goi)
        }
        /* now does target type exist */
        for (x = 0 ; target_types[x] ; x++) {
-               if (0 == strcmp(cp, target_types[x]->name)) {
+               if (strcmp(cp, target_types[x]->name) == 0) {
                        /* found */
                        break;
                }
@@ -5937,7 +5957,7 @@ static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
                return JIM_ERR;
        }
        Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
-       for (unsigned x = 0; NULL != target_types[x]; x++) {
+       for (unsigned x = 0; target_types[x]; x++) {
                Jim_ListAppendElement(interp, Jim_GetResult(interp),
                        Jim_NewStringObj(interp, target_types[x]->name, -1));
        }
@@ -5965,10 +5985,10 @@ static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
        int i;
        const char *targetname;
        int retval, len;
-       struct target *target = (struct target *) NULL;
+       struct target *target = NULL;
        struct target_list *head, *curr, *new;
-       curr = (struct target_list *) NULL;
-       head = (struct target_list *) NULL;
+       curr = NULL;
+       head = NULL;
 
        retval = 0;
        LOG_DEBUG("%d", argc);
@@ -5985,8 +6005,8 @@ static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
                if (target) {
                        new = malloc(sizeof(struct target_list));
                        new->target = target;
-                       new->next = (struct target_list *)NULL;
-                       if (head == (struct target_list *)NULL) {
+                       new->next = NULL;
+                       if (!head) {
                                head = new;
                                curr = head;
                        } else {
@@ -5998,7 +6018,7 @@ static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
        /*  now parse the list of cpu and put the target in smp mode*/
        curr = head;
 
-       while (curr != (struct target_list *)NULL) {
+       while (curr) {
                target = curr->target;
                target->smp = 1;
                target->head = head;

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