954ed5500c
The first stage attempting to initialise usbdebug gadget will leave it marked as non-present if none is detected. This allows further stages to bypass usbdebug init sequence. Change-Id: I1491d7fab3c89f210fb03b32481f697bc7a1d1e6 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/30622 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2007 AMD
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* Written by Yinghai Lu <yinghai.lu@amd.com> for AMD.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _EHCI_DEBUG_H_
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#define _EHCI_DEBUG_H_
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#include <types.h>
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void usbdebug_re_enable(unsigned ehci_base);
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void usbdebug_disable(void);
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/* Returns 0 on success and sets MMIO base and dbg_offset if EHCI debug
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* capability was found and enabled. Returns non-zero on error.
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*/
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int ehci_debug_hw_enable(unsigned *base, unsigned *dbg_offset);
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void ehci_debug_select_port(unsigned int port);
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#define DBGP_EP_VALID (1<<0)
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#define DBGP_EP_ENABLED (1<<1)
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#define DBGP_EP_BUSY (1<<2)
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#define DBGP_EP_NOT_PRESENT (1<<3)
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#define DBGP_EP_STATMASK (DBGP_EP_VALID | DBGP_EP_ENABLED)
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#define DBGP_MAX_ENDPOINTS 4
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#define DBGP_SETUP_EP0 0 /* Compulsory endpoint 0. */
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#define DBGP_CONSOLE_EPOUT 1
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#define DBGP_CONSOLE_EPIN 2
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struct ehci_dbg_port;
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struct dbgp_pipe
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{
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u8 devnum;
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u8 endpoint;
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u8 pid;
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u8 status;
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int timeout;
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u8 bufidx;
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u8 buflen;
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char buf[8];
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};
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void dbgp_put(struct dbgp_pipe *pipe);
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int dbgp_try_get(struct dbgp_pipe *pipe);
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struct dbgp_pipe *dbgp_console_output(void);
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struct dbgp_pipe *dbgp_console_input(void);
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int dbgp_ep_is_active(struct dbgp_pipe *pipe);
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int dbgp_bulk_write_x(struct dbgp_pipe *pipe, const char *bytes, int size);
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int dbgp_bulk_read_x(struct dbgp_pipe *pipe, void *data, int size);
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int dbgp_control_msg(struct ehci_dbg_port *ehci_debug, unsigned devnum,
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int requesttype, int request, int value, int index, void *data, int size);
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void dbgp_mdelay(int ms);
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int dbgp_probe_gadget(struct ehci_dbg_port *ehci_debug, struct dbgp_pipe *pipe);
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#endif /* _EHCI_DEBUG_H_ */
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