mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-16 16:36:58 +07:00
3a316ec4c9
Current otg fsm timers are using controller 1ms irq and count it, this patch is to replace it with hrtimer solution, use one hrtimer for all otg timers. Signed-off-by: Li Jun <jun.li@freescale.com> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
/*
|
|
* Copyright (C) 2014 Freescale Semiconductor, Inc.
|
|
*
|
|
* Author: Jun Li
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef __DRIVERS_USB_CHIPIDEA_OTG_FSM_H
|
|
#define __DRIVERS_USB_CHIPIDEA_OTG_FSM_H
|
|
|
|
#include <linux/usb/otg-fsm.h>
|
|
|
|
/*
|
|
* A-DEVICE timing constants
|
|
*/
|
|
|
|
/* Wait for VBUS Rise */
|
|
#define TA_WAIT_VRISE (100) /* a_wait_vrise: section 7.1.2
|
|
* a_wait_vrise_tmr: section 7.4.5.1
|
|
* TA_VBUS_RISE <= 100ms, section 4.4
|
|
* Table 4-1: Electrical Characteristics
|
|
* ->DC Electrical Timing
|
|
*/
|
|
/* Wait for VBUS Fall */
|
|
#define TA_WAIT_VFALL (1000) /* a_wait_vfall: section 7.1.7
|
|
* a_wait_vfall_tmr: section: 7.4.5.2
|
|
*/
|
|
/* Wait for B-Connect */
|
|
#define TA_WAIT_BCON (10000) /* a_wait_bcon: section 7.1.3
|
|
* TA_WAIT_BCON: should be between 1100
|
|
* and 30000 ms, section 5.5, Table 5-1
|
|
*/
|
|
/* A-Idle to B-Disconnect */
|
|
#define TA_AIDL_BDIS (5000) /* a_suspend min 200 ms, section 5.2.1
|
|
* TA_AIDL_BDIS: section 5.5, Table 5-1
|
|
*/
|
|
/* B-Idle to A-Disconnect */
|
|
#define TA_BIDL_ADIS (500) /* TA_BIDL_ADIS: section 5.2.1
|
|
* 500ms is used for B switch to host
|
|
* for safe
|
|
*/
|
|
|
|
/*
|
|
* B-device timing constants
|
|
*/
|
|
|
|
/* Data-Line Pulse Time*/
|
|
#define TB_DATA_PLS (10) /* b_srp_init,continue 5~10ms
|
|
* section:5.1.3
|
|
*/
|
|
/* SRP Fail Time */
|
|
#define TB_SRP_FAIL (6000) /* b_srp_init,fail time 5~6s
|
|
* section:5.1.6
|
|
*/
|
|
/* A-SE0 to B-Reset */
|
|
#define TB_ASE0_BRST (155) /* minimum 155 ms, section:5.3.1 */
|
|
/* SE0 Time Before SRP */
|
|
#define TB_SE0_SRP (1000) /* b_idle,minimum 1s, section:5.1.2 */
|
|
/* SSEND time before SRP */
|
|
#define TB_SSEND_SRP (1500) /* minimum 1.5 sec, section:5.1.2 */
|
|
|
|
#ifdef CONFIG_USB_OTG_FSM
|
|
|
|
int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci);
|
|
int ci_otg_fsm_work(struct ci_hdrc *ci);
|
|
irqreturn_t ci_otg_fsm_irq(struct ci_hdrc *ci);
|
|
void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci);
|
|
void ci_hdrc_otg_fsm_remove(struct ci_hdrc *ci);
|
|
|
|
#else
|
|
|
|
static inline int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int ci_otg_fsm_work(struct ci_hdrc *ci)
|
|
{
|
|
return -ENXIO;
|
|
}
|
|
|
|
static inline irqreturn_t ci_otg_fsm_irq(struct ci_hdrc *ci)
|
|
{
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
static inline void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci)
|
|
{
|
|
|
|
}
|
|
|
|
static inline void ci_hdrc_otg_fsm_remove(struct ci_hdrc *ci)
|
|
{
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif /* __DRIVERS_USB_CHIPIDEA_OTG_FSM_H */
|