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usbd_rom.c
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1 /*
2 * @brief USB ROM based core driver functions
3 *
4 * @note
5 * Copyright(C) NXP Semiconductors, 2012
6 * All rights reserved.
7 *
8 * @par
9 * Software that is described herein is for illustrative purposes only
10 * which provides customers with programming information regarding the
11 * LPC products. This software is supplied "AS IS" without any warranties of
12 * any kind, and NXP Semiconductors and its licensor disclaim any and
13 * all warranties, express or implied, including all implied warranties of
14 * merchantability, fitness for a particular purpose and non-infringement of
15 * intellectual property rights. NXP Semiconductors assumes no responsibility
16 * or liability for the use of the software, conveys no license or rights under any
17 * patent, copyright, mask work right, or any other intellectual property rights in
18 * or to any products. NXP Semiconductors reserves the right to make changes
19 * in the software without notification. NXP Semiconductors also makes no
20 * representation or warranty that such application will be suitable for the
21 * specified use without further testing or modification.
22 *
23 * @par
24 * Permission to use, copy, modify, and distribute this software and its
25 * documentation is hereby granted, under NXP Semiconductors' and its
26 * licensor's relevant copyrights in the software, without fee, provided that it
27 * is used in conjunction with NXP Semiconductors microcontrollers. This
28 * copyright, permission, and disclaimer notice must appear in all copies of
29 * this code.
30 */
31
32 #define __INCLUDE_FROM_USB_DRIVER
33 #include "../../USBMode.h"
34
35 #if defined(USB_CAN_BE_DEVICE)
36 #include "../../Device.h"
37 #include "../../Endpoint.h"
38
39 #if defined(USB_DEVICE_ROM_DRIVER)
40 USBD_HANDLE_T UsbHandle;
41 /* FIXME Abstract & make this size configurable */
42 //#define ROMDRIVER_MEM_SIZE 0x1000
43 //uint8_t usb_RomDriver_buffer[ROMDRIVER_MEM_SIZE] ATTR_ALIGNED(2048) __BSS(USBRAM_SECTION);
44
45 ErrorCode_t UsbdRom_Event_Stub (USBD_HANDLE_T hUsb);
46 PRAGMA_WEAK(USB_Interface_Event,UsbdRom_Event_Stub)
47 ErrorCode_t USB_Interface_Event (USBD_HANDLE_T hUsb) ATTR_WEAK ATTR_ALIAS(UsbdRom_Event_Stub);
48 PRAGMA_WEAK(USB_Configure_Event,USB_Configure_Event_Stub)
49 ErrorCode_t USB_Configure_Event (USBD_HANDLE_T hUsb) ATTR_WEAK ATTR_ALIAS(USB_Configure_Event_Stub);
50 ErrorCode_t USB_Configure_Event_Stub (USBD_HANDLE_T hUsb)
51 {
52 USB_CORE_CTRL_T* pCtrl = (USB_CORE_CTRL_T*)hUsb;
53 uint8_t epnum = CALLBACK_UsbdRom_Register_ConfigureEndpoint();
54
55 if((pCtrl->config_value)&&(epnum!=0))
56 {
57 USBD_API->hw->WriteEP(hUsb, (epnum + 0x80), usb_RomDriver_buffer, 1);//TODO: what is this for?
58 }
59 return LPC_OK;
60 }
61 void UsbdRom_Init(uint8_t corenum)
62 {
63 ErrorCode_t ret;
64
65 USBD_API_INIT_PARAM_T usb_param =
66 {
67 .usb_reg_base = ROMDRIVER_USB0_BASE,
68 .max_num_ep = ENDPOINT_TOTAL_ENDPOINTS(corenum),
69 .mem_base = (uint32_t) usb_RomDriver_buffer,
70 .mem_size = ROMDRIVER_MEM_SIZE,
71 .USB_Configure_Event = USB_Configure_Event
72 };
73 USB_CORE_DESCS_T DeviceDes = {NULL};
74
75 if(corenum)
76 usb_param.usb_reg_base = ROMDRIVER_USB1_BASE;
77
78 /* add custom Interface Event */
79 if(USB_Interface_Event != UsbdRom_Event_Stub)
80 {
81 usb_param.USB_Interface_Event = USB_Interface_Event;
82 }
83 DeviceDes.device_desc = (uint8_t*)CALLBACK_UsbdRom_Register_DeviceDescriptor();
84 DeviceDes.high_speed_desc = (uint8_t*)CALLBACK_UsbdRom_Register_ConfigurationDescriptor();
85 DeviceDes.full_speed_desc = (uint8_t*)CALLBACK_UsbdRom_Register_ConfigurationDescriptor();
86 DeviceDes.string_desc = (uint8_t*)CALLBACK_UsbdRom_Register_StringDescriptor();
87 DeviceDes.device_qualifier = (uint8_t*)CALLBACK_UsbdRom_Register_DeviceQualifierDescriptor();
88
89 ret = USBD_API->hw->Init(&UsbHandle, &DeviceDes, &usb_param);
90
91 // trap failed initialization
92 while(ret != LPC_OK);
93 }
94
95 void UsbdRom_IrqHandler(void)
96 {
97 USBD_API->hw->ISR(UsbHandle);
98 }
99
100 ErrorCode_t UsbdRom_Event_Stub (USBD_HANDLE_T hUsb)
101 {
102 return LPC_OK;
103 }
104 #endif /* USB_DEVICE_ROM_DRIVER */
105
106 #endif /* USB_CAN_BE_DEVICE */