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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/usb/chipidea/otg_fsm.h | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/usb/chipidea/otg_fsm.h')
-rw-r--r-- | drivers/usb/chipidea/otg_fsm.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/otg_fsm.h b/drivers/usb/chipidea/otg_fsm.h new file mode 100644 index 000000000..1f5c5ae0e --- /dev/null +++ b/drivers/usb/chipidea/otg_fsm.h @@ -0,0 +1,101 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2014 Freescale Semiconductor, Inc. + * + * Author: Jun Li + */ + +#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 */ + +#define TB_AIDL_BDIS (20) /* 4ms ~ 150ms, section 5.2.1 */ + +#if IS_ENABLED(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 */ |