Chris Kelly | bc3157d | 2012-02-20 21:11:37 +0000 | [diff] [blame] | 1 | /* ----------------------------------------------------------------------------- |
| 2 | * Copyright (c) 2011 Ozmo Inc |
| 3 | * Released under the GNU General Public License Version 2 (GPLv2). |
| 4 | * ----------------------------------------------------------------------------- |
| 5 | */ |
| 6 | #ifndef _OZPD_H_ |
| 7 | #define _OZPD_H_ |
| 8 | |
| 9 | #include "ozeltbuf.h" |
| 10 | |
| 11 | /* PD state |
| 12 | */ |
| 13 | #define OZ_PD_S_IDLE 0x1 |
| 14 | #define OZ_PD_S_CONNECTED 0x2 |
| 15 | #define OZ_PD_S_SLEEP 0x4 |
| 16 | #define OZ_PD_S_STOPPED 0x8 |
| 17 | |
| 18 | /* Timer event types. |
| 19 | */ |
| 20 | #define OZ_TIMER_TOUT 1 |
| 21 | #define OZ_TIMER_HEARTBEAT 2 |
| 22 | #define OZ_TIMER_STOP 3 |
| 23 | |
| 24 | /* Data structure that hold information on a frame for transmisson. This is |
| 25 | * built when the frame is first transmitted and is used to rebuild the frame |
| 26 | * if a re-transmission is required. |
| 27 | */ |
| 28 | struct oz_tx_frame { |
| 29 | struct list_head link; |
| 30 | struct list_head elt_list; |
| 31 | struct oz_hdr hdr; |
Rupesh Gujare | 33e6ada | 2012-06-20 13:36:06 +0100 | [diff] [blame] | 32 | struct sk_buff *skb; |
Chris Kelly | bc3157d | 2012-02-20 21:11:37 +0000 | [diff] [blame] | 33 | int total_size; |
| 34 | }; |
| 35 | |
| 36 | struct oz_isoc_stream { |
| 37 | struct list_head link; |
| 38 | u8 ep_num; |
| 39 | u8 frame_num; |
| 40 | u8 nb_units; |
| 41 | int size; |
| 42 | struct sk_buff *skb; |
| 43 | struct oz_hdr *oz_hdr; |
| 44 | }; |
| 45 | |
| 46 | struct oz_farewell { |
| 47 | struct list_head link; |
| 48 | u8 ep_num; |
| 49 | u8 index; |
| 50 | u8 report[1]; |
| 51 | u8 len; |
| 52 | }; |
| 53 | |
| 54 | /* Data structure that holds information on a specific peripheral device (PD). |
| 55 | */ |
| 56 | struct oz_pd { |
| 57 | struct list_head link; |
| 58 | atomic_t ref_count; |
| 59 | u8 mac_addr[ETH_ALEN]; |
| 60 | unsigned state; |
| 61 | unsigned state_flags; |
| 62 | unsigned send_flags; |
| 63 | u16 total_apps; |
| 64 | u16 paused_apps; |
| 65 | u8 session_id; |
| 66 | u8 param_rsp_status; |
| 67 | u8 pd_info; |
| 68 | u8 isoc_sent; |
| 69 | u32 last_rx_pkt_num; |
| 70 | u32 last_tx_pkt_num; |
| 71 | u32 trigger_pkt_num; |
| 72 | unsigned long pulse_time_j; |
| 73 | unsigned long timeout_time_j; |
| 74 | unsigned long pulse_period_j; |
| 75 | unsigned long presleep_j; |
| 76 | unsigned long keep_alive_j; |
| 77 | unsigned long last_rx_time_j; |
| 78 | struct oz_elt_buf elt_buff; |
| 79 | void *app_ctx[OZ_APPID_MAX]; |
| 80 | spinlock_t app_lock[OZ_APPID_MAX]; |
| 81 | int max_tx_size; |
| 82 | u8 heartbeat_requested; |
| 83 | u8 mode; |
| 84 | u8 ms_per_isoc; |
Rupesh Gujare | 86d03a0 | 2012-07-23 18:49:46 +0100 | [diff] [blame] | 85 | unsigned isoc_latency; |
Chris Kelly | bc3157d | 2012-02-20 21:11:37 +0000 | [diff] [blame] | 86 | unsigned max_stream_buffering; |
| 87 | int nb_queued_frames; |
Rupesh Gujare | 33e6ada | 2012-06-20 13:36:06 +0100 | [diff] [blame] | 88 | int nb_queued_isoc_frames; |
Chris Kelly | bc3157d | 2012-02-20 21:11:37 +0000 | [diff] [blame] | 89 | struct list_head *tx_pool; |
| 90 | int tx_pool_count; |
| 91 | spinlock_t tx_frame_lock; |
| 92 | struct list_head *last_sent_frame; |
| 93 | struct list_head tx_queue; |
| 94 | struct list_head farewell_list; |
| 95 | spinlock_t stream_lock; |
| 96 | struct list_head stream_list; |
| 97 | struct net_device *net_dev; |
| 98 | }; |
| 99 | |
| 100 | #define OZ_MAX_QUEUED_FRAMES 4 |
| 101 | |
| 102 | struct oz_pd *oz_pd_alloc(u8 *mac_addr); |
| 103 | void oz_pd_destroy(struct oz_pd *pd); |
| 104 | void oz_pd_get(struct oz_pd *pd); |
| 105 | void oz_pd_put(struct oz_pd *pd); |
| 106 | void oz_pd_set_state(struct oz_pd *pd, unsigned state); |
| 107 | void oz_pd_indicate_farewells(struct oz_pd *pd); |
| 108 | int oz_pd_sleep(struct oz_pd *pd); |
| 109 | void oz_pd_stop(struct oz_pd *pd); |
| 110 | void oz_pd_heartbeat(struct oz_pd *pd, u16 apps); |
| 111 | int oz_services_start(struct oz_pd *pd, u16 apps, int resume); |
| 112 | void oz_services_stop(struct oz_pd *pd, u16 apps, int pause); |
| 113 | int oz_prepare_frame(struct oz_pd *pd, int empty); |
| 114 | void oz_send_queued_frames(struct oz_pd *pd, int backlog); |
| 115 | void oz_retire_tx_frames(struct oz_pd *pd, u8 lpn); |
| 116 | int oz_isoc_stream_create(struct oz_pd *pd, u8 ep_num); |
| 117 | int oz_isoc_stream_delete(struct oz_pd *pd, u8 ep_num); |
| 118 | int oz_send_isoc_unit(struct oz_pd *pd, u8 ep_num, u8 *data, int len); |
| 119 | void oz_handle_app_elt(struct oz_pd *pd, u8 app_id, struct oz_elt *elt); |
| 120 | void oz_apps_init(void); |
| 121 | void oz_apps_term(void); |
| 122 | |
| 123 | #endif /* Sentry */ |