xref: /aosp_15_r20/external/coreboot/src/vendorcode/cavium/include/bdk/libbdk-hal/bdk-usb.h (revision b9411a12aaaa7e1e6a6fb7c5e057f44ee179a49c)
1 #ifndef __BDK_HAL_USB_H__
2 #define __BDK_HAL_USB_H__
3 /***********************license start***********************************
4 * Copyright (c) 2003-2017  Cavium Inc. ([email protected]). All rights
5 * reserved.
6 *
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are
10 * met:
11 *
12 *   * Redistributions of source code must retain the above copyright
13 *     notice, this list of conditions and the following disclaimer.
14 *
15 *   * Redistributions in binary form must reproduce the above
16 *     copyright notice, this list of conditions and the following
17 *     disclaimer in the documentation and/or other materials provided
18 *     with the distribution.
19 *
20 *   * Neither the name of Cavium Inc. nor the names of
21 *     its contributors may be used to endorse or promote products
22 *     derived from this software without specific prior written
23 *     permission.
24 *
25 * This Software, including technical data, may be subject to U.S. export
26 * control laws, including the U.S. Export Administration Act and its
27 * associated regulations, and may be subject to export or import
28 * regulations in other countries.
29 *
30 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
31 * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
32 * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT
33 * TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
34 * REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
35 * DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES
36 * OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR
37 * PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT,
38 * QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE  RISK
39 * ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
40 ***********************license end**************************************/
41 
42 /**
43  * @file
44  *
45  * Interface to USB3 or USB2.
46  *
47  * <hr>$Revision: 49448 $<hr>
48  *
49  * @addtogroup hal
50  * @{
51  */
52 
53 typedef enum
54 {
55     BDK_USB_TEST_USB2_DISABLE,
56     BDK_USB_TEST_USB2_J_STATE,
57     BDK_USB_TEST_USB2_K_STATE,
58     BDK_USB_TEST_USB2_SE0_NAK,
59     BDK_USB_TEST_USB2_PACKET,
60     BDK_USB_TEST_USB2_FORCE_ENABLE,
61     BDK_USB_XHCI_INIT,
62     BDK_USB_XHCI_LIST_ADDRESSES,
63     BDK_USB_XHCI_POLL_STATUS,
64     BDK_USB_XHCI_TOGGLE_POLLING,
65     BDK_USB_TEST_USB2_LAST,
66 } bdk_usb_test_t;
67 
68 typedef enum
69 {
70     BDK_USB_CLOCK_SS_PAD_HS_PAD = 0x0,    /* Superspeed and high speed use PAD clock */
71     BDK_USB_CLOCK_SS_REF0_HS_REF0 = 0x1,  /* Superspeed and high speed use DLM/QLM ref clock 0 */
72     BDK_USB_CLOCK_SS_REF1_HS_REF1 = 0x2,  /* Superspeed and high speed use DLM/QLM ref clock 1 */
73     BDK_USB_CLOCK_SS_PAD_HS_PLL = 0x3,    /* Superspeed uses PAD clock, high speed uses PLL ref clock */
74     BDK_USB_CLOCK_SS_REF0_HS_PLL = 0x4,   /* Superspeed uses DLM/QLM ref clock 0, high speed uses PLL ref clock */
75     BDK_USB_CLOCK_SS_REF1_HS_PLL = 0x5,   /* Superspeed uses DLM/QLM ref clock 1, high speed uses PLL ref clock */
76 } bdk_usb_clock_t;
77 
78 /**
79  * Initialize the clocks for USB such that it is ready for a generic XHCI driver
80  *
81  * @param node       Node to init
82  * @param usb_port   Port to intialize
83  * @param clock_type Type of clock connected to the usb port
84  *
85  * @return Zero on success, negative on failure
86  */
87 int bdk_usb_initialize(bdk_node_t node, int usb_port, bdk_usb_clock_t clock_type);
88 
89 /**
90  * Put the USB port into a specific testing mode
91  *
92  * @param node      Node to use
93  * @param usb_port  Port to use
94  * @param test_mode USB test mode
95  *
96  * @return Zero on success, negative on failure
97  */
98 int bdk_usb_test_mode(bdk_node_t node, int usb_port, bdk_usb_test_t test_mode);
99 
100 /**
101  * Convert a USB test enumeration into a string for display to the user
102  *
103  * @param node      Node to use
104  * @param usb_port  Port to use
105  * @param test_mode Mode to convert
106  *
107  * @return String name of test
108  */
109 const char *bdk_usb_get_test_mode_string(bdk_node_t node, int usb_port, bdk_usb_test_t test_mode);
110 
111 /** @} */
112 #endif
113