1 /******************************************************************************
2 * Copyright (c) 2022 Telink Semiconductor (Shanghai) Co., Ltd. ("TELINK")
3 * All rights reserved.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 *****************************************************************************/
18
19 /********************************************************************************************************
20 * @file usbhw.c
21 *
22 * @brief This is the source file for B91
23 *
24 * @author Driver Group
25 *
26 *******************************************************************************************************/
27 #include "usbhw.h"
28 /**
29 * @brief This function disables the manual interrupt
30 * (Endpont8 is the alias of endpoint0)
31 * @param[in] m - the irq mode needs to set
32 * @return none
33 */
usbhw_disable_manual_interrupt(int m)34 void usbhw_disable_manual_interrupt(int m) {
35 BM_SET(reg_ctrl_ep_irq_mode, m);
36 }
37
38 /**
39 * @brief This function enable the manual interrupt
40 * @param[in] m - the irq mode needs to set
41 * @return none
42 */
usbhw_enable_manual_interrupt(int m)43 void usbhw_enable_manual_interrupt(int m) {
44 BM_CLR(reg_ctrl_ep_irq_mode, m);
45 }
46
47 /**
48 * @brief This function sends a bulk of data to host via the specified endpoint
49 * @param[in] ep - the number of the endpoint
50 * @param[in] data - pointer to the data need to send
51 * @param[in] len - length in byte of the data need to send
52 * @return none
53 */
usbhw_write_ep(unsigned int ep,unsigned char * data,int len)54 void usbhw_write_ep(unsigned int ep, unsigned char * data, int len) {
55 reg_usb_ep_ptr(ep) = 0;
56
57 for(int i = 0; i < (len); ++i){
58 reg_usb_ep_dat(ep) = data[i];
59 }
60 reg_usb_ep_ctrl(ep) = FLD_EP_DAT_ACK; // ACK
61 }
62
63 /**
64 * @brief This function sends two bytes data to host via the control endpoint
65 * (handy help function)
66 * @param[in] v - the two bytes data need to send
67 * @return none
68 */
usbhw_write_ctrl_ep_u16(unsigned short v)69 void usbhw_write_ctrl_ep_u16(unsigned short v){
70 usbhw_write_ctrl_ep_data(v & 0xff);
71 usbhw_write_ctrl_ep_data(v >> 8);
72 }
73
74 /**
75 * @brief This function reads two bytes data from host via the control endpoint
76 * @param none
77 * @return the two bytes data read from the control endpoint
78 */
usbhw_read_ctrl_ep_u16(void)79 unsigned short usbhw_read_ctrl_ep_u16(void){
80 unsigned short v = usbhw_read_ctrl_ep_data();
81 return (usbhw_read_ctrl_ep_data() << 8) | v;
82 }
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