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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)
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) __DATA(USBRAM_SECTION);
44 
45 ErrorCode_t UsbdRom_Event_Stub (USBD_HANDLE_T hUsb);
46 PRAGMA_WEAK(USB_Interface_Event,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;
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(void)
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,
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(USBPortNum)
76  usb_param.usb_reg_base = ROMDRIVER_USB1_BASE;
77 
78  /* add custom Interface Event */
79  if(USB_Interface_Event != UsbdRom_Event_Stub)
80  {
82  }
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 */