diff options
| author | Edmund Nadolski <edmund.nadolski@intel.com> | 2011-06-02 00:10:50 +0000 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2011-07-03 04:04:50 -0700 |
| commit | 12ef65444de9d387a383b9991960848bed5bbe74 (patch) | |
| tree | cc7145adf102b57ae4bc347974b23974d795d2c8 /drivers/scsi/isci/isci.h | |
| parent | e301370ac553a9a0ac0d1d25e769b86cf60395b3 (diff) | |
isci: additional state machine cleanup
Additional state machine cleanups:
o Remove static functions sci_state_machine_exit_state() and
sci_state_machine_enter_state()
o Combines sci_base_state_machine_construct() and
sci_base_state_machine_start() into a single function,
sci_init_sm()
o Remove sci_base_state_machine_stop() which is unused.
o Kill state_machine.[ch]
Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
[fixed too large to inline functions]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/scsi/isci/isci.h')
| -rw-r--r-- | drivers/scsi/isci/isci.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/scsi/isci/isci.h b/drivers/scsi/isci/isci.h index 2fe5557d859..80cfb45f8da 100644 --- a/drivers/scsi/isci/isci.h +++ b/drivers/scsi/isci/isci.h @@ -57,6 +57,7 @@ #define __ISCI_H__ #include <linux/interrupt.h> +#include <linux/types.h> #define DRV_NAME "isci" #define SCI_PCI_BAR_COUNT 2 @@ -584,4 +585,22 @@ static inline void sci_del_timer(struct sci_timer *tmr) del_timer(&tmr->timer); } +struct sci_base_state_machine { + const struct sci_base_state *state_table; + u32 initial_state_id; + u32 current_state_id; + u32 previous_state_id; +}; + +typedef void (*sci_state_transition_t)(struct sci_base_state_machine *sm); + +struct sci_base_state { + sci_state_transition_t enter_state; /* Called on state entry */ + sci_state_transition_t exit_state; /* Called on state exit */ +}; + +extern void sci_init_sm(struct sci_base_state_machine *sm, + const struct sci_base_state *state_table, + u32 initial_state); +extern void sci_change_state(struct sci_base_state_machine *sm, u32 next_state); #endif /* __ISCI_H__ */ |