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 | ||
| 4a757547 LJ |
65 | #define TB_AIDL_BDIS (20) /* 4ms ~ 150ms, section 5.2.1 */ |
| 66 | ||
| cf4f2193 | 67 | #if IS_ENABLED(CONFIG_USB_OTG_FSM) |
| 57677be5 LJ |
68 | |
| 69 | int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci); | |
| 4dcf720c LJ |
70 | int ci_otg_fsm_work(struct ci_hdrc *ci); |
| 71 | irqreturn_t ci_otg_fsm_irq(struct ci_hdrc *ci); | |
| 72 | void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci); | |
| 15f75def | 73 | void ci_hdrc_otg_fsm_remove(struct ci_hdrc *ci); |
| 57677be5 LJ |
74 | |
| 75 | #else | |
| 76 | ||
| 77 | static inline int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci) | |
| 78 | { | |
| 79 | return 0; | |
| 80 | } | |
| 81 | ||
| 4dcf720c LJ |
82 | static inline int ci_otg_fsm_work(struct ci_hdrc *ci) |
| 83 | { | |
| 84 | return -ENXIO; | |
| 85 | } | |
| 86 | ||
| 87 | static inline irqreturn_t ci_otg_fsm_irq(struct ci_hdrc *ci) | |
| 88 | { | |
| 89 | return IRQ_NONE; | |
| 90 | } | |
| 91 | ||
| 92 | static inline void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci) | |
| 93 | { | |
| 94 | ||
| 95 | } | |
| 96 | ||
| 15f75def LJ |
97 | static inline void ci_hdrc_otg_fsm_remove(struct ci_hdrc *ci) |
| 98 | { | |
| 99 | ||
| 100 | } | |
| 101 | ||
| 57677be5 LJ |
102 | #endif |
| 103 | ||
| 104 | #endif /* __DRIVERS_USB_CHIPIDEA_OTG_FSM_H */ |