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8fd0700774
Current implementation assumes HZ = 1000 for calculating all internal timer intervals, which creates problem on platforms where HZ != 1000. As well we need resolution of less than 10 mSec for heartbeat calculation, this creates problem on some platforms where HZ is configured as HZ = 100, or around, which restricts us to timer interval of 10 mSec. This is particularly found on embedded devices. This patch moves on to use high resolution timers to calculate all timer intervals as it allows us to have very small resolution of timer interval, removing dependency on HZ. Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
/* -----------------------------------------------------------------------------
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* Copyright (c) 2011 Ozmo Inc
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* Released under the GNU General Public License Version 2 (GPLv2).
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* -----------------------------------------------------------------------------
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*/
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#ifndef _OZPROTO_H
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#define _OZPROTO_H
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#include <asm/byteorder.h>
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#include "ozdbg.h"
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#include "ozappif.h"
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#define OZ_ALLOCATED_SPACE(__x) (LL_RESERVED_SPACE(__x)+(__x)->needed_tailroom)
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/* Quantum in MS */
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#define OZ_QUANTUM 8
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/* Default timeouts.
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*/
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#define OZ_PRESLEEP_TOUT 11
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/* Maximun sizes of tx frames. */
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#define OZ_MAX_TX_SIZE 1514
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/* Maximum number of uncompleted isoc frames that can be pending in network. */
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#define OZ_MAX_SUBMITTED_ISOC 16
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/* Maximum number of uncompleted isoc frames that can be pending in Tx Queue. */
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#define OZ_MAX_TX_QUEUE_ISOC 32
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/* Application handler functions.
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*/
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typedef int (*oz_app_init_fn_t)(void);
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typedef void (*oz_app_term_fn_t)(void);
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typedef int (*oz_app_start_fn_t)(struct oz_pd *pd, int resume);
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typedef void (*oz_app_stop_fn_t)(struct oz_pd *pd, int pause);
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typedef void (*oz_app_rx_fn_t)(struct oz_pd *pd, struct oz_elt *elt);
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typedef int (*oz_app_hearbeat_fn_t)(struct oz_pd *pd);
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typedef void (*oz_app_farewell_fn_t)(struct oz_pd *pd, u8 ep_num,
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u8 *data, u8 len);
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struct oz_app_if {
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oz_app_init_fn_t init;
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oz_app_term_fn_t term;
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oz_app_start_fn_t start;
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oz_app_stop_fn_t stop;
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oz_app_rx_fn_t rx;
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oz_app_hearbeat_fn_t heartbeat;
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oz_app_farewell_fn_t farewell;
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int app_id;
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};
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int oz_protocol_init(char *devs);
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void oz_protocol_term(void);
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int oz_get_pd_list(struct oz_mac_addr *addr, int max_count);
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void oz_app_enable(int app_id, int enable);
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struct oz_pd *oz_pd_find(const u8 *mac_addr);
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void oz_binding_add(char *net_dev);
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void oz_binding_remove(char *net_dev);
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void oz_timer_add(struct oz_pd *pd, int type, unsigned long due_time);
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void oz_timer_delete(struct oz_pd *pd, int type);
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void oz_pd_request_heartbeat(struct oz_pd *pd);
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void oz_polling_lock_bh(void);
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void oz_polling_unlock_bh(void);
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void oz_pd_heartbeat_handler(unsigned long data);
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void oz_pd_timeout_handler(unsigned long data);
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enum hrtimer_restart oz_pd_heartbeat_event(struct hrtimer *timer);
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enum hrtimer_restart oz_pd_timeout_event(struct hrtimer *timer);
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int oz_get_pd_status_list(char *pd_list, int max_count);
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int oz_get_binding_list(char *buf, int max_if);
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#endif /* _OZPROTO_H */
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