summaryrefslogtreecommitdiff
path: root/drivers/staging/tidspbridge/gen
diff options
context:
space:
mode:
authorYuval Adam <_@yuv.al>2017-08-30 08:25:59 +0000
committerYuval Adam <_@yuv.al>2017-08-30 08:25:59 +0000
commit8e4bff4cab0ddac6060645b0715210484d02ff40 (patch)
tree3a5c3024371a04692a3a6d9974d001cdff8ebf84 /drivers/staging/tidspbridge/gen
Initial file dump from open source releaseHEADmaster
Diffstat (limited to 'drivers/staging/tidspbridge/gen')
-rw-r--r--drivers/staging/tidspbridge/gen/gh.c177
-rw-r--r--drivers/staging/tidspbridge/gen/uuidutil.c85
2 files changed, 262 insertions, 0 deletions
diff --git a/drivers/staging/tidspbridge/gen/gh.c b/drivers/staging/tidspbridge/gen/gh.c
new file mode 100644
index 00000000..25eaef78
--- /dev/null
+++ b/drivers/staging/tidspbridge/gen/gh.c
@@ -0,0 +1,177 @@
+/*
+ * gh.c
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#include <linux/types.h>
+
+#include <dspbridge/host_os.h>
+#include <dspbridge/gh.h>
+
+struct element {
+ struct element *next;
+ u8 data[1];
+};
+
+struct gh_t_hash_tab {
+ u16 max_bucket;
+ u16 val_size;
+ struct element **buckets;
+ u16(*hash) (void *, u16);
+ bool(*match) (void *, void *);
+ void (*delete) (void *);
+};
+
+static void noop(void *p);
+
+/*
+ * ======== gh_create ========
+ */
+
+struct gh_t_hash_tab *gh_create(u16 max_bucket, u16 val_size,
+ u16(*hash) (void *, u16), bool(*match) (void *,
+ void *),
+ void (*delete) (void *))
+{
+ struct gh_t_hash_tab *hash_tab;
+ u16 i;
+ hash_tab = kzalloc(sizeof(struct gh_t_hash_tab), GFP_KERNEL);
+ if (hash_tab == NULL)
+ return NULL;
+ hash_tab->max_bucket = max_bucket;
+ hash_tab->val_size = val_size;
+ hash_tab->hash = hash;
+ hash_tab->match = match;
+ hash_tab->delete = delete == NULL ? noop : delete;
+
+ hash_tab->buckets =
+ kzalloc(sizeof(struct element *) * max_bucket, GFP_KERNEL);
+ if (hash_tab->buckets == NULL) {
+ gh_delete(hash_tab);
+ return NULL;
+ }
+
+ for (i = 0; i < max_bucket; i++)
+ hash_tab->buckets[i] = NULL;
+
+ return hash_tab;
+}
+
+/*
+ * ======== gh_delete ========
+ */
+void gh_delete(struct gh_t_hash_tab *hash_tab)
+{
+ struct element *elem, *next;
+ u16 i;
+
+ if (hash_tab != NULL) {
+ if (hash_tab->buckets != NULL) {
+ for (i = 0; i < hash_tab->max_bucket; i++) {
+ for (elem = hash_tab->buckets[i]; elem != NULL;
+ elem = next) {
+ next = elem->next;
+ (*hash_tab->delete) (elem->data);
+ kfree(elem);
+ }
+ }
+
+ kfree(hash_tab->buckets);
+ }
+
+ kfree(hash_tab);
+ }
+}
+
+/*
+ * ======== gh_find ========
+ */
+
+void *gh_find(struct gh_t_hash_tab *hash_tab, void *key)
+{
+ struct element *elem;
+
+ elem = hash_tab->buckets[(*hash_tab->hash) (key, hash_tab->max_bucket)];
+
+ for (; elem; elem = elem->next) {
+ if ((*hash_tab->match) (key, elem->data))
+ return elem->data;
+ }
+
+ return NULL;
+}
+
+/*
+ * ======== gh_insert ========
+ */
+
+void *gh_insert(struct gh_t_hash_tab *hash_tab, void *key, void *value)
+{
+ struct element *elem;
+ u16 i;
+ char *src, *dst;
+
+ elem = kzalloc(sizeof(struct element) - 1 + hash_tab->val_size,
+ GFP_KERNEL);
+ if (elem != NULL) {
+
+ dst = (char *)elem->data;
+ src = (char *)value;
+ for (i = 0; i < hash_tab->val_size; i++)
+ *dst++ = *src++;
+
+ i = (*hash_tab->hash) (key, hash_tab->max_bucket);
+ elem->next = hash_tab->buckets[i];
+ hash_tab->buckets[i] = elem;
+
+ return elem->data;
+ }
+
+ return NULL;
+}
+
+/*
+ * ======== noop ========
+ */
+/* ARGSUSED */
+static void noop(void *p)
+{
+ p = p; /* stifle compiler warning */
+}
+
+#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
+/**
+ * gh_iterate() - This function goes through all the elements in the hash table
+ * looking for the dsp symbols.
+ * @hash_tab: Hash table
+ * @callback: pointer to callback function
+ * @user_data: User data, contains the find_symbol_context pointer
+ *
+ */
+void gh_iterate(struct gh_t_hash_tab *hash_tab,
+ void (*callback)(void *, void *), void *user_data)
+{
+ struct element *elem;
+ u32 i;
+
+ if (hash_tab && hash_tab->buckets)
+ for (i = 0; i < hash_tab->max_bucket; i++) {
+ elem = hash_tab->buckets[i];
+ while (elem) {
+ callback(&elem->data, user_data);
+ elem = elem->next;
+ }
+ }
+}
+#endif
diff --git a/drivers/staging/tidspbridge/gen/uuidutil.c b/drivers/staging/tidspbridge/gen/uuidutil.c
new file mode 100644
index 00000000..b7d8313d
--- /dev/null
+++ b/drivers/staging/tidspbridge/gen/uuidutil.c
@@ -0,0 +1,85 @@
+/*
+ * uuidutil.c
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * This file contains the implementation of UUID helper functions.
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+#include <linux/types.h>
+
+/* ----------------------------------- Host OS */
+#include <dspbridge/host_os.h>
+
+/* ----------------------------------- DSP/BIOS Bridge */
+#include <dspbridge/dbdefs.h>
+
+/* ----------------------------------- This */
+#include <dspbridge/uuidutil.h>
+
+static s32 uuid_hex_to_bin(char *buf, s32 len)
+{
+ s32 i;
+ s32 result = 0;
+ int value;
+
+ for (i = 0; i < len; i++) {
+ value = hex_to_bin(*buf++);
+ result *= 16;
+ if (value > 0)
+ result += value;
+ }
+
+ return result;
+}
+
+/*
+ * ======== uuid_uuid_from_string ========
+ * Purpose:
+ * Converts a string to a struct dsp_uuid.
+ */
+void uuid_uuid_from_string(char *sz_uuid, struct dsp_uuid *uuid_obj)
+{
+ s32 j;
+
+ uuid_obj->data1 = uuid_hex_to_bin(sz_uuid, 8);
+ sz_uuid += 8;
+
+ /* Step over underscore */
+ sz_uuid++;
+
+ uuid_obj->data2 = (u16) uuid_hex_to_bin(sz_uuid, 4);
+ sz_uuid += 4;
+
+ /* Step over underscore */
+ sz_uuid++;
+
+ uuid_obj->data3 = (u16) uuid_hex_to_bin(sz_uuid, 4);
+ sz_uuid += 4;
+
+ /* Step over underscore */
+ sz_uuid++;
+
+ uuid_obj->data4 = (u8) uuid_hex_to_bin(sz_uuid, 2);
+ sz_uuid += 2;
+
+ uuid_obj->data5 = (u8) uuid_hex_to_bin(sz_uuid, 2);
+ sz_uuid += 2;
+
+ /* Step over underscore */
+ sz_uuid++;
+
+ for (j = 0; j < 6; j++) {
+ uuid_obj->data6[j] = (u8) uuid_hex_to_bin(sz_uuid, 2);
+ sz_uuid += 2;
+ }
+}