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101 lines
2.5 KiB
101 lines
2.5 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Copyright (C) 2014 Freescale Semiconductor, Inc. |
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* |
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* Author: Jun Li |
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*/ |
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#ifndef __DRIVERS_USB_CHIPIDEA_OTG_FSM_H |
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#define __DRIVERS_USB_CHIPIDEA_OTG_FSM_H |
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#include <linux/usb/otg-fsm.h> |
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/* |
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* A-DEVICE timing constants |
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*/ |
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/* Wait for VBUS Rise */ |
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#define TA_WAIT_VRISE (100) /* a_wait_vrise: section 7.1.2 |
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* a_wait_vrise_tmr: section 7.4.5.1 |
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* TA_VBUS_RISE <= 100ms, section 4.4 |
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* Table 4-1: Electrical Characteristics |
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* ->DC Electrical Timing |
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*/ |
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/* Wait for VBUS Fall */ |
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#define TA_WAIT_VFALL (1000) /* a_wait_vfall: section 7.1.7 |
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* a_wait_vfall_tmr: section: 7.4.5.2 |
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*/ |
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/* Wait for B-Connect */ |
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#define TA_WAIT_BCON (10000) /* a_wait_bcon: section 7.1.3 |
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* TA_WAIT_BCON: should be between 1100 |
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* and 30000 ms, section 5.5, Table 5-1 |
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*/ |
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/* A-Idle to B-Disconnect */ |
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#define TA_AIDL_BDIS (5000) /* a_suspend min 200 ms, section 5.2.1 |
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* TA_AIDL_BDIS: section 5.5, Table 5-1 |
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*/ |
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/* B-Idle to A-Disconnect */ |
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#define TA_BIDL_ADIS (500) /* TA_BIDL_ADIS: section 5.2.1 |
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* 500ms is used for B switch to host |
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* for safe |
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*/ |
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/* |
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* B-device timing constants |
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*/ |
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/* Data-Line Pulse Time*/ |
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#define TB_DATA_PLS (10) /* b_srp_init,continue 5~10ms |
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* section:5.1.3 |
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*/ |
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/* SRP Fail Time */ |
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#define TB_SRP_FAIL (6000) /* b_srp_init,fail time 5~6s |
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* section:5.1.6 |
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*/ |
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/* A-SE0 to B-Reset */ |
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#define TB_ASE0_BRST (155) /* minimum 155 ms, section:5.3.1 */ |
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/* SE0 Time Before SRP */ |
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#define TB_SE0_SRP (1000) /* b_idle,minimum 1s, section:5.1.2 */ |
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/* SSEND time before SRP */ |
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#define TB_SSEND_SRP (1500) /* minimum 1.5 sec, section:5.1.2 */ |
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#define TB_AIDL_BDIS (20) /* 4ms ~ 150ms, section 5.2.1 */ |
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#if IS_ENABLED(CONFIG_USB_OTG_FSM) |
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int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci); |
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int ci_otg_fsm_work(struct ci_hdrc *ci); |
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irqreturn_t ci_otg_fsm_irq(struct ci_hdrc *ci); |
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void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci); |
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void ci_hdrc_otg_fsm_remove(struct ci_hdrc *ci); |
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#else |
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static inline int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci) |
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{ |
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return 0; |
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} |
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static inline int ci_otg_fsm_work(struct ci_hdrc *ci) |
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{ |
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return -ENXIO; |
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} |
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static inline irqreturn_t ci_otg_fsm_irq(struct ci_hdrc *ci) |
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{ |
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return IRQ_NONE; |
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} |
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static inline void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci) |
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{ |
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} |
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static inline void ci_hdrc_otg_fsm_remove(struct ci_hdrc *ci) |
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{ |
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} |
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#endif |
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#endif /* __DRIVERS_USB_CHIPIDEA_OTG_FSM_H */
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