2 * System Trace Module (STM) infrastructure
3 * Copyright (c) 2014, Intel Corporation.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * STM class implements generic infrastructure for System Trace Module devices
15 * as defined in MIPI STPv2 specification.
22 struct stp_policy_node;
24 struct stp_policy_node *
25 stp_policy_node_lookup(struct stm_device *stm, char *s);
26 void stp_policy_node_put(struct stp_policy_node *policy_node);
27 void stp_policy_unbind(struct stp_policy *policy);
29 void stp_policy_node_get_ranges(struct stp_policy_node *policy_node,
30 unsigned int *mstart, unsigned int *mend,
31 unsigned int *cstart, unsigned int *cend);
32 int stp_configfs_init(void);
33 void stp_configfs_exit(void);
37 unsigned long chan_map[0];
43 struct stp_policy *policy;
44 struct mutex policy_mutex;
46 unsigned int sw_nmasters;
47 struct stm_data *data;
48 struct mutex link_mutex;
50 struct list_head link_list;
51 /* master allocation */
53 struct stp_master *masters[0];
56 #define to_stm_device(_d) \
57 container_of((_d), struct stm_device, dev)
62 unsigned int nr_chans;
66 struct stm_device *stm;
67 struct stp_policy_node *policy_node;
68 struct stm_output output;
71 struct stm_device *stm_find_device(const char *name);
72 void stm_put_device(struct stm_device *stm);
74 struct stm_source_device {
76 struct stm_source_data *data;
78 struct stm_device __rcu *link;
79 struct list_head link_entry;
80 /* one output per stm_source device */
81 struct stp_policy_node *policy_node;
82 struct stm_output output;
85 #define to_stm_source_device(_d) \
86 container_of((_d), struct stm_source_device, dev)
88 #endif /* _STM_STM_H_ */