| /* |
| * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #include "debug.h" |
| |
| #include <linux/moduleparam.h> |
| |
| static unsigned int ep_addr_rxdbg_mask = 1; |
| module_param(ep_addr_rxdbg_mask, uint, 0644); |
| static unsigned int ep_addr_txdbg_mask = 1; |
| module_param(ep_addr_txdbg_mask, uint, 0644); |
| |
| static int allow_dbg_print(u8 ep_num) |
| { |
| int dir, num; |
| |
| /* allow bus wide events */ |
| if (ep_num == 0xff) |
| return 1; |
| |
| dir = ep_num & 0x1; |
| num = ep_num >> 1; |
| num = 1 << num; |
| |
| if (dir && (num & ep_addr_txdbg_mask)) |
| return 1; |
| if (!dir && (num & ep_addr_rxdbg_mask)) |
| return 1; |
| |
| return 0; |
| } |
| |
| /** |
| * dwc3_dbg_print: prints the common part of the event |
| * @addr: endpoint address |
| * @name: event name |
| * @status: status |
| * @extra: extra information |
| * @dwc3: pointer to struct dwc3 |
| */ |
| void dwc3_dbg_print(struct dwc3 *dwc, u8 ep_num, const char *name, |
| int status, const char *extra) |
| { |
| if (!allow_dbg_print(ep_num)) |
| return; |
| |
| if (name == NULL) |
| return; |
| |
| ipc_log_string(dwc->dwc_ipc_log_ctxt, "%02X %-25.25s %4i ?\t%s", |
| ep_num, name, status, extra); |
| } |
| |
| /** |
| * dwc3_dbg_done: prints a DONE event |
| * @addr: endpoint address |
| * @td: transfer descriptor |
| * @status: status |
| * @dwc3: pointer to struct dwc3 |
| */ |
| void dwc3_dbg_done(struct dwc3 *dwc, u8 ep_num, |
| const u32 count, int status) |
| { |
| if (!allow_dbg_print(ep_num)) |
| return; |
| |
| ipc_log_string(dwc->dwc_ipc_log_ctxt, "%02X %-25.25s %4i ?\t%d", |
| ep_num, "DONE", status, count); |
| } |
| |
| /** |
| * dwc3_dbg_event: prints a generic event |
| * @addr: endpoint address |
| * @name: event name |
| * @status: status |
| */ |
| void dwc3_dbg_event(struct dwc3 *dwc, u8 ep_num, const char *name, int status) |
| { |
| if (!allow_dbg_print(ep_num)) |
| return; |
| |
| if (name != NULL) |
| dwc3_dbg_print(dwc, ep_num, name, status, ""); |
| } |
| |
| /* |
| * dwc3_dbg_queue: prints a QUEUE event |
| * @addr: endpoint address |
| * @req: USB request |
| * @status: status |
| */ |
| void dwc3_dbg_queue(struct dwc3 *dwc, u8 ep_num, |
| const struct usb_request *req, int status) |
| { |
| if (!allow_dbg_print(ep_num)) |
| return; |
| |
| if (req != NULL) { |
| ipc_log_string(dwc->dwc_ipc_log_ctxt, |
| "%02X %-25.25s %4i ?\t%d %d", ep_num, "QUEUE", status, |
| !req->no_interrupt, req->length); |
| } |
| } |
| |
| /** |
| * dwc3_dbg_setup: prints a SETUP event |
| * @addr: endpoint address |
| * @req: setup request |
| */ |
| void dwc3_dbg_setup(struct dwc3 *dwc, u8 ep_num, |
| const struct usb_ctrlrequest *req) |
| { |
| if (!allow_dbg_print(ep_num)) |
| return; |
| |
| if (req != NULL) { |
| ipc_log_string(dwc->dwc_ipc_log_ctxt, |
| "%02X %-25.25s ?\t%02X %02X %04X %04X %d", |
| ep_num, "SETUP", req->bRequestType, |
| req->bRequest, le16_to_cpu(req->wValue), |
| le16_to_cpu(req->wIndex), le16_to_cpu(req->wLength)); |
| } |
| } |
| |
| /** |
| * dwc3_dbg_print_reg: prints a reg value |
| * @name: reg name |
| * @reg: reg value to be printed |
| */ |
| void dwc3_dbg_print_reg(struct dwc3 *dwc, const char *name, int reg) |
| { |
| if (name == NULL) |
| return; |
| |
| ipc_log_string(dwc->dwc_ipc_log_ctxt, "%s = 0x%08x", name, reg); |
| } |
| |
| void dwc3_dbg_dma_unmap(struct dwc3 *dwc, u8 ep_num, struct dwc3_request *req) |
| { |
| if (ep_num < 2) |
| return; |
| |
| ipc_log_string(dwc->dwc_dma_ipc_log_ctxt, |
| "%02X-%-3.3s %-25.25s 0x%pK 0x%lx %u 0x%lx %d", ep_num >> 1, |
| ep_num & 1 ? "IN":"OUT", "UNMAP", &req->request, |
| req->request.dma, req->request.length, req->trb_dma, |
| req->trb->ctrl & DWC3_TRB_CTRL_HWO); |
| } |
| |
| void dwc3_dbg_dma_map(struct dwc3 *dwc, u8 ep_num, struct dwc3_request *req) |
| { |
| if (ep_num < 2) |
| return; |
| |
| ipc_log_string(dwc->dwc_dma_ipc_log_ctxt, |
| "%02X-%-3.3s %-25.25s 0x%pK 0x%lx %u 0x%lx", ep_num >> 1, |
| ep_num & 1 ? "IN":"OUT", "MAP", &req->request, req->request.dma, |
| req->request.length, req->trb_dma); |
| } |
| |
| void dwc3_dbg_dma_dequeue(struct dwc3 *dwc, u8 ep_num, struct dwc3_request *req) |
| { |
| if (ep_num < 2) |
| return; |
| |
| ipc_log_string(dwc->dwc_dma_ipc_log_ctxt, |
| "%02X-%-3.3s %-25.25s 0x%pK 0x%lx 0x%lx", ep_num >> 1, |
| ep_num & 1 ? "IN":"OUT", "DEQUEUE", &req->request, |
| req->request.dma, req->trb_dma); |
| } |
| |
| void dwc3_dbg_dma_queue(struct dwc3 *dwc, u8 ep_num, struct dwc3_request *req) |
| { |
| if (ep_num < 2) |
| return; |
| |
| ipc_log_string(dwc->dwc_dma_ipc_log_ctxt, |
| "%02X-%-3.3s %-25.25s 0x%pK", ep_num >> 1, |
| ep_num & 1 ? "IN":"OUT", "QUEUE", &req->request); |
| } |