projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 57677be5 LJ |
1 | /* |
| 2 | * Copyright (C) 2014 Freescale Semiconductor, Inc. | |
| 3 | * | |
| 4 | * Author: Jun Li | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License version 2 as | |
| 8 | * published by the Free Software Foundation. | |
| 9 | */ | |
| 10 | ||
| 11 | #ifndef __DRIVERS_USB_CHIPIDEA_OTG_FSM_H | |
| 12 | #define __DRIVERS_USB_CHIPIDEA_OTG_FSM_H | |
| 13 | ||
| 14 | #include <linux/usb/otg-fsm.h> | |
| 15 | ||
| e287b67b LJ |
16 | /* |
| 17 | * A-DEVICE timing constants | |
| 18 | */ | |
| 19 | ||
| 20 | /* Wait for VBUS Rise */ | |
| 21 | #define TA_WAIT_VRISE (100) /* a_wait_vrise: section 7.1.2 | |
| 22 | * a_wait_vrise_tmr: section 7.4.5.1 | |
| 23 | * TA_VBUS_RISE <= 100ms, section 4.4 | |
| 24 | * Table 4-1: Electrical Characteristics | |
| 25 | * ->DC Electrical Timing | |
| 26 | */ | |
| 27 | /* Wait for VBUS Fall */ | |
| 28 | #define TA_WAIT_VFALL (1000) /* a_wait_vfall: section 7.1.7 | |
| 29 | * a_wait_vfall_tmr: section: 7.4.5.2 | |
| 30 | */ | |
| 31 | /* Wait for B-Connect */ | |
| 32 | #define TA_WAIT_BCON (10000) /* a_wait_bcon: section 7.1.3 | |
| 33 | * TA_WAIT_BCON: should be between 1100 | |
| 34 | * and 30000 ms, section 5.5, Table 5-1 | |
| 35 | */ | |
| 36 | /* A-Idle to B-Disconnect */ | |
| 37 | #define TA_AIDL_BDIS (5000) /* a_suspend min 200 ms, section 5.2.1 | |
| 38 | * TA_AIDL_BDIS: section 5.5, Table 5-1 | |
| 39 | */ | |
| 40 | /* B-Idle to A-Disconnect */ | |
| 41 | #define TA_BIDL_ADIS (500) /* TA_BIDL_ADIS: section 5.2.1 | |
| 42 | * 500ms is used for B switch to host | |
| 43 | * for safe | |
| 44 | */ | |
| 45 | ||
| 46 | /* | |
| 47 | * B-device timing constants | |
| 48 | */ | |
| 49 | ||
| 50 | /* Data-Line Pulse Time*/ | |
| 51 | #define TB_DATA_PLS (10) /* b_srp_init,continue 5~10ms | |
| 52 | * section:5.1.3 | |
| 53 | */ | |
| 54 | /* SRP Fail Time */ | |
| 55 | #define TB_SRP_FAIL (6000) /* b_srp_init,fail time 5~6s | |
| 56 | * section:5.1.6 | |
| 57 | */ | |
| 58 | /* A-SE0 to B-Reset */ | |
| 59 | #define TB_ASE0_BRST (155) /* minimum 155 ms, section:5.3.1 */ | |
| 60 | /* SE0 Time Before SRP */ | |
| 61 | #define TB_SE0_SRP (1000) /* b_idle,minimum 1s, section:5.1.2 */ | |
| 62 | /* SSEND time before SRP */ | |
| 63 | #define TB_SSEND_SRP (1500) /* minimum 1.5 sec, section:5.1.2 */ | |
| 64 | ||
| 65 | #define TB_SESS_VLD (1000) | |
| 66 | ||
| 826cfe75 LJ |
67 | enum ci_otg_fsm_timer_index { |
| 68 | /* | |
| 69 | * CI specific timers, start from the end | |
| 70 | * of standard and auxiliary OTG timers | |
| 71 | */ | |
| 72 | B_DATA_PLS = NUM_OTG_FSM_TIMERS, | |
| 73 | B_SSEND_SRP, | |
| 74 | B_SESS_VLD, | |
| 75 | ||
| 76 | NUM_CI_OTG_FSM_TIMERS, | |
| 77 | }; | |
| 78 | ||
| 79 | struct ci_otg_fsm_timer { | |
| 80 | unsigned long expires; /* Number of count increase to timeout */ | |
| 81 | unsigned long count; /* Tick counter */ | |
| 82 | void (*function)(void *, unsigned long); /* Timeout function */ | |
| 83 | unsigned long data; /* Data passed to function */ | |
| 84 | struct list_head list; | |
| 85 | }; | |
| 86 | ||
| 87 | struct ci_otg_fsm_timer_list { | |
| 88 | struct ci_otg_fsm_timer *timer_list[NUM_CI_OTG_FSM_TIMERS]; | |
| 89 | struct list_head active_timers; | |
| 90 | }; | |
| 91 | ||
| 57677be5 LJ |
92 | #ifdef CONFIG_USB_OTG_FSM |
| 93 | ||
| 94 | int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci); | |
| 95 | ||
| 96 | #else | |
| 97 | ||
| 98 | static inline int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci) | |
| 99 | { | |
| 100 | return 0; | |
| 101 | } | |
| 102 | ||
| 103 | #endif | |
| 104 | ||
| 105 | #endif /* __DRIVERS_USB_CHIPIDEA_OTG_FSM_H */ |