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51b751f112
Now that the SPDX tag is in all USB files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Acked-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
101 lines
2.5 KiB
C
101 lines
2.5 KiB
C
// 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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