Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 1 | /** |
| 2 | * gadget.h - DesignWare USB3 DRD Gadget Header |
| 3 | * |
| 4 | * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 5 | * |
| 6 | * Authors: Felipe Balbi <balbi@ti.com>, |
| 7 | * Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
| 8 | * |
Felipe Balbi | 5945f78 | 2013-06-30 14:15:11 +0300 | [diff] [blame] | 9 | * This program is free software: you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License version 2 of |
| 11 | * the License as published by the Free Software Foundation. |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 12 | * |
Felipe Balbi | 5945f78 | 2013-06-30 14:15:11 +0300 | [diff] [blame] | 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 17 | */ |
| 18 | |
| 19 | #ifndef __DRIVERS_USB_DWC3_GADGET_H |
| 20 | #define __DRIVERS_USB_DWC3_GADGET_H |
| 21 | |
| 22 | #include <linux/list.h> |
| 23 | #include <linux/usb/gadget.h> |
| 24 | #include "io.h" |
| 25 | |
| 26 | struct dwc3; |
| 27 | #define to_dwc3_ep(ep) (container_of(ep, struct dwc3_ep, endpoint)) |
| 28 | #define gadget_to_dwc(g) (container_of(g, struct dwc3, gadget)) |
| 29 | |
Felipe Balbi | dc1c70a | 2011-09-30 10:58:51 +0300 | [diff] [blame] | 30 | /* DEPCFG parameter 1 */ |
Felipe Balbi | 808ee14 | 2017-01-31 13:24:54 +0200 | [diff] [blame] | 31 | #define DWC3_DEPCFG_INT_NUM(n) (((n) & 0x1f) << 0) |
Felipe Balbi | dc1c70a | 2011-09-30 10:58:51 +0300 | [diff] [blame] | 32 | #define DWC3_DEPCFG_XFER_COMPLETE_EN (1 << 8) |
| 33 | #define DWC3_DEPCFG_XFER_IN_PROGRESS_EN (1 << 9) |
| 34 | #define DWC3_DEPCFG_XFER_NOT_READY_EN (1 << 10) |
| 35 | #define DWC3_DEPCFG_FIFO_ERROR_EN (1 << 11) |
| 36 | #define DWC3_DEPCFG_STREAM_EVENT_EN (1 << 13) |
Felipe Balbi | 808ee14 | 2017-01-31 13:24:54 +0200 | [diff] [blame] | 37 | #define DWC3_DEPCFG_BINTERVAL_M1(n) (((n) & 0xff) << 16) |
Felipe Balbi | dc1c70a | 2011-09-30 10:58:51 +0300 | [diff] [blame] | 38 | #define DWC3_DEPCFG_STREAM_CAPABLE (1 << 24) |
Felipe Balbi | 808ee14 | 2017-01-31 13:24:54 +0200 | [diff] [blame] | 39 | #define DWC3_DEPCFG_EP_NUMBER(n) (((n) & 0x1f) << 25) |
Felipe Balbi | dc1c70a | 2011-09-30 10:58:51 +0300 | [diff] [blame] | 40 | #define DWC3_DEPCFG_BULK_BASED (1 << 30) |
| 41 | #define DWC3_DEPCFG_FIFO_BASED (1 << 31) |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 42 | |
Felipe Balbi | dc1c70a | 2011-09-30 10:58:51 +0300 | [diff] [blame] | 43 | /* DEPCFG parameter 0 */ |
Felipe Balbi | 808ee14 | 2017-01-31 13:24:54 +0200 | [diff] [blame] | 44 | #define DWC3_DEPCFG_EP_TYPE(n) (((n) & 0x3) << 1) |
| 45 | #define DWC3_DEPCFG_MAX_PACKET_SIZE(n) (((n) & 0x7ff) << 3) |
| 46 | #define DWC3_DEPCFG_FIFO_NUMBER(n) (((n) & 0x1f) << 17) |
| 47 | #define DWC3_DEPCFG_BURST_SIZE(n) (((n) & 0xf) << 22) |
Felipe Balbi | dc1c70a | 2011-09-30 10:58:51 +0300 | [diff] [blame] | 48 | #define DWC3_DEPCFG_DATA_SEQ_NUM(n) ((n) << 26) |
Paul Zimmerman | 2c61a8e | 2012-02-15 18:56:58 -0800 | [diff] [blame] | 49 | /* This applies for core versions earlier than 1.94a */ |
Felipe Balbi | dc1c70a | 2011-09-30 10:58:51 +0300 | [diff] [blame] | 50 | #define DWC3_DEPCFG_IGN_SEQ_NUM (1 << 31) |
Paul Zimmerman | 2c61a8e | 2012-02-15 18:56:58 -0800 | [diff] [blame] | 51 | /* These apply for core versions 1.94a and later */ |
| 52 | #define DWC3_DEPCFG_ACTION_INIT (0 << 30) |
| 53 | #define DWC3_DEPCFG_ACTION_RESTORE (1 << 30) |
| 54 | #define DWC3_DEPCFG_ACTION_MODIFY (2 << 30) |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 55 | |
Felipe Balbi | dc1c70a | 2011-09-30 10:58:51 +0300 | [diff] [blame] | 56 | /* DEPXFERCFG parameter 0 */ |
| 57 | #define DWC3_DEPXFERCFG_NUM_XFER_RES(n) ((n) & 0xffff) |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 58 | |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 59 | /* -------------------------------------------------------------------------- */ |
| 60 | |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 61 | #define to_dwc3_request(r) (container_of(r, struct dwc3_request, request)) |
| 62 | |
| 63 | static inline struct dwc3_request *next_request(struct list_head *list) |
| 64 | { |
| 65 | if (list_empty(list)) |
| 66 | return NULL; |
| 67 | |
| 68 | return list_first_entry(list, struct dwc3_request, list); |
| 69 | } |
| 70 | |
Felipe Balbi | aa3342c | 2016-03-14 11:01:31 +0200 | [diff] [blame] | 71 | static inline void dwc3_gadget_move_started_request(struct dwc3_request *req) |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 72 | { |
| 73 | struct dwc3_ep *dep = req->dep; |
| 74 | |
Felipe Balbi | aa3342c | 2016-03-14 11:01:31 +0200 | [diff] [blame] | 75 | req->started = true; |
| 76 | list_move_tail(&req->list, &dep->started_list); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 77 | } |
| 78 | |
Hemant Kumar | e4f2781 | 2017-01-27 18:31:22 -0800 | [diff] [blame] | 79 | static inline enum dwc3_link_state dwc3_get_link_state(struct dwc3 *dwc) |
| 80 | { |
| 81 | u32 reg; |
| 82 | |
| 83 | reg = dwc3_readl(dwc->regs, DWC3_DSTS); |
| 84 | return DWC3_DSTS_USBLNKST(reg); |
| 85 | } |
| 86 | |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 87 | void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req, |
| 88 | int status); |
| 89 | |
Felipe Balbi | 25b8ff6 | 2011-11-04 12:32:47 +0200 | [diff] [blame] | 90 | void dwc3_ep0_interrupt(struct dwc3 *dwc, |
| 91 | const struct dwc3_event_depevt *event); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 92 | void dwc3_ep0_out_start(struct dwc3 *dwc); |
Felipe Balbi | 33fb691 | 2014-09-24 10:46:46 -0500 | [diff] [blame] | 93 | int __dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value); |
Pratyush Anand | 08f0d96 | 2012-06-25 22:40:43 +0530 | [diff] [blame] | 94 | int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 95 | int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request, |
| 96 | gfp_t gfp_flags); |
Felipe Balbi | 7a60855 | 2014-09-24 14:19:52 -0500 | [diff] [blame] | 97 | int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol); |
Mayank Rana | a99689a | 2016-08-10 17:39:47 -0700 | [diff] [blame] | 98 | void dwc3_stop_active_transfer(struct dwc3 *dwc, u32 epnum, bool force); |
| 99 | irqreturn_t dwc3_interrupt(int irq, void *_dwc); |
Mayank Rana | f616a7f | 2017-03-20 16:10:39 -0700 | [diff] [blame] | 100 | void dwc3_bh_work(struct work_struct *w); |
Mayank Rana | 9ca186c | 2017-06-19 17:57:21 -0700 | [diff] [blame] | 101 | void dwc3_ep_inc_enq(struct dwc3_ep *dep); |
| 102 | void dwc3_ep_inc_deq(struct dwc3_ep *dep); |
Mayank Rana | a99689a | 2016-08-10 17:39:47 -0700 | [diff] [blame] | 103 | |
| 104 | static inline dma_addr_t dwc3_trb_dma_offset(struct dwc3_ep *dep, |
| 105 | struct dwc3_trb *trb) |
| 106 | { |
| 107 | u32 offset = (char *) trb - (char *) dep->trb_pool; |
| 108 | |
| 109 | return dep->trb_pool_dma + offset; |
| 110 | } |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 111 | |
| 112 | /** |
| 113 | * dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW |
| 114 | * @dwc: DesignWare USB3 Pointer |
| 115 | * @number: DWC endpoint number |
| 116 | * |
| 117 | * Caller should take care of locking |
| 118 | */ |
Felipe Balbi | 2eb8801 | 2016-04-12 16:53:39 +0300 | [diff] [blame] | 119 | static inline u32 dwc3_gadget_ep_get_transfer_index(struct dwc3_ep *dep) |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 120 | { |
| 121 | u32 res_id; |
| 122 | |
Felipe Balbi | 2eb8801 | 2016-04-12 16:53:39 +0300 | [diff] [blame] | 123 | res_id = dwc3_readl(dep->regs, DWC3_DEPCMD); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 124 | |
| 125 | return DWC3_DEPCMD_GET_RSC_IDX(res_id); |
| 126 | } |
| 127 | |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 128 | #endif /* __DRIVERS_USB_DWC3_GADGET_H */ |