?? fw.lst
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C51 COMPILER V7.50 FW 08/06/2008 16:10:35 PAGE 1
C51 COMPILER V7.50, COMPILATION OF MODULE FW
OBJECT MODULE PLACED IN fw.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE fw.c BROWSE DEBUG OBJECTEXTEND
line level source
1 //-----------------------------------------------------------------------------
2 // File: fw.c
3 // Contents: Firmware frameworks task dispatcher and device request parser
4 // source.
5 //
6 // indent 3. NO TABS!
7 //
8 // $Revision: 18 $
9 // $Date: 12/04/01 5:33p $
10 //
11 // Copyright (c) 1997 AnchorChips, Inc. All rights reserved
12 //-----------------------------------------------------------------------------
13 #include "fx2.h"
14 #include "fx2regs.h"
15
16 //-----------------------------------------------------------------------------
17 // Constants
18 //-----------------------------------------------------------------------------
19 #define DELAY_COUNT 0x9248*8L // Delay for 8 sec at 24Mhz, 4 sec at 48
20 #define _IFREQ 48000 // IFCLK constant for Synchronization Delay
21 #define _CFREQ 48000 // CLKOUT constant for Synchronization Delay
22
23 //-----------------------------------------------------------------------------
24 // Random Macros
25 //-----------------------------------------------------------------------------
26 #define min(a,b) (((a)<(b))?(a):(b))
27 #define max(a,b) (((a)>(b))?(a):(b))
28
29 // Registers which require a synchronization delay, see section 15.14
30 // FIFORESET FIFOPINPOLAR
31 // INPKTEND OUTPKTEND
32 // EPxBCH:L REVCTL
33 // GPIFTCB3 GPIFTCB2
34 // GPIFTCB1 GPIFTCB0
35 // EPxFIFOPFH:L EPxAUTOINLENH:L
36 // EPxFIFOCFG EPxGPIFFLGSEL
37 // PINFLAGSxx EPxFIFOIRQ
38 // EPxFIFOIE GPIFIRQ
39 // GPIFIE GPIFADRH:L
40 // UDMACRCH:L EPxGPIFTRIG
41 // GPIFTRIG
42
43 // Note: The pre-REVE EPxGPIFTCH/L register are affected, as well...
44 // ...these have been replaced by GPIFTC[B3:B0] registers
45
46 #include "fx2sdly.h" // Define _IFREQ and _CFREQ above this #include
47
48 //-----------------------------------------------------------------------------
49 // Global Variables
50 //-----------------------------------------------------------------------------
51 volatile BOOL GotSUD;
52 BOOL Rwuen;
53 BOOL Selfpwr;
54 volatile BOOL Sleep; // Sleep mode enable flag
55
C51 COMPILER V7.50 FW 08/06/2008 16:10:35 PAGE 2
56 WORD pDeviceDscr; // Pointer to Device Descriptor; Descriptors may be moved
57 WORD pDeviceQualDscr;
58 WORD pHighSpeedConfigDscr;
59 WORD pFullSpeedConfigDscr;
60 WORD pConfigDscr;
61 WORD pOtherConfigDscr;
62 WORD pStringDscr;
63
64 //-----------------------------------------------------------------------------
65 // Prototypes
66 //-----------------------------------------------------------------------------
67 void SetupCommand(void);
68 void TD_Init(void);
69 void TD_Poll(void);
70 BOOL TD_Suspend(void);
71 BOOL TD_Resume(void);
72
73 BOOL DR_GetDescriptor(void);
74 BOOL DR_SetConfiguration(void);
75 BOOL DR_GetConfiguration(void);
76 BOOL DR_SetInterface(void);
77 BOOL DR_GetInterface(void);
78 BOOL DR_GetStatus(void);
79 BOOL DR_ClearFeature(void);
80 BOOL DR_SetFeature(void);
81 BOOL DR_VendorCmnd(void);
82
83 // this table is used by the epcs macro
84 const char code EPCS_Offset_Lookup_Table[] =
85 {
86 0, // EP1OUT
87 1, // EP1IN
88 2, // EP2OUT
89 2, // EP2IN
90 3, // EP4OUT
91 3, // EP4IN
92 4, // EP6OUT
93 4, // EP6IN
94 5, // EP8OUT
95 5, // EP8IN
96 };
97
98 // macro for generating the address of an endpoint's control and status register (EPnCS)
99 #define epcs(EP) (EPCS_Offset_Lookup_Table[(EP & 0x7E) | (EP > 128)] + 0xE6A1)
100
101 //-----------------------------------------------------------------------------
102 // Code
103 //-----------------------------------------------------------------------------
104
105 // Task dispatcher
106 void main(void)
107 {
108 1 DWORD i;
109 1 WORD offset;
110 1 DWORD DevDescrLen;
111 1 DWORD j=0;
112 1 WORD IntDescrAddr;
113 1 WORD ExtDescrAddr;
114 1
115 1 // Initialize Global States
116 1 Sleep = FALSE; // Disable sleep mode
117 1 Rwuen = FALSE; // Disable remote wakeup
C51 COMPILER V7.50 FW 08/06/2008 16:10:35 PAGE 3
118 1 Selfpwr = FALSE; // Disable self powered
119 1 GotSUD = FALSE; // Clear "Got setup data" flag
120 1
121 1 // Initialize user device
122 1 TD_Init();
123 1
124 1 // The following section of code is used to relocate the descriptor table.
125 1 // Since the SUDPTRH and SUDPTRL are assigned the address of the descriptor
126 1 // table, the descriptor table must be located in on-part memory.
127 1 // The 4K demo tools locate all code sections in external memory.
128 1 // The descriptor table is relocated by the frameworks ONLY if it is found
129 1 // to be located in external memory.
130 1 pDeviceDscr = (WORD)&DeviceDscr;
131 1 pDeviceQualDscr = (WORD)&DeviceQualDscr;
132 1 pHighSpeedConfigDscr = (WORD)&HighSpeedConfigDscr;
133 1 pFullSpeedConfigDscr = (WORD)&FullSpeedConfigDscr;
134 1 pStringDscr = (WORD)&StringDscr;
135 1
136 1 if ((WORD)&DeviceDscr & 0xe000)
137 1 {
138 2 IntDescrAddr = INTERNAL_DSCR_ADDR;
139 2 ExtDescrAddr = (WORD)&DeviceDscr;
140 2 DevDescrLen = (WORD)&UserDscr - (WORD)&DeviceDscr + 2;
141 2 for (i = 0; i < DevDescrLen; i++)
142 2 *((BYTE xdata *)IntDescrAddr+i) = 0xCD;
143 2 for (i = 0; i < DevDescrLen; i++)
144 2 *((BYTE xdata *)IntDescrAddr+i) = *((BYTE xdata *)ExtDescrAddr+i);
145 2 pDeviceDscr = IntDescrAddr;
146 2 offset = (WORD)&DeviceDscr - INTERNAL_DSCR_ADDR;
147 2 pDeviceQualDscr -= offset;
148 2 pConfigDscr -= offset;
149 2 pOtherConfigDscr -= offset;
150 2 pHighSpeedConfigDscr -= offset;
151 2 pFullSpeedConfigDscr -= offset;
152 2 pStringDscr -= offset;
153 2 }
154 1
155 1 EZUSB_IRQ_ENABLE(); // Enable USB interrupt (INT2)
156 1 EZUSB_ENABLE_RSMIRQ(); // Wake-up interrupt
157 1
158 1 INTSETUP |= (bmAV2EN | bmAV4EN); // Enable INT 2 & 4 autovectoring
159 1
160 1 USBIE |= bmSUDAV | bmSUTOK | bmSUSP | bmURES | bmHSGRANT; // Enable selected interrupts
161 1 EA = 1; // Enable 8051 interrupts
162 1
163 1 #ifndef NO_RENUM
164 1 // Renumerate if necessary. Do this by checking the renum bit. If it
165 1 // is already set, there is no need to renumerate. The renum bit will
166 1 // already be set if this firmware was loaded from an eeprom.
167 1 if(!(USBCS & bmRENUM))
168 1 {
169 2 EZUSB_Discon(TRUE); // renumerate
170 2 }
171 1 #endif
172 1
173 1 // unconditionally re-connect. If we loaded from eeprom we are
174 1 // disconnected and need to connect. If we just renumerated this
175 1 // is not necessary but doesn't hurt anything
176 1 USBCS &=~bmDISCON;
177 1
178 1 CKCON = (CKCON&(~bmSTRETCH)) | FW_STRETCH_VALUE; // Set stretch to 0 (after renumeration)
179 1
C51 COMPILER V7.50 FW 08/06/2008 16:10:35 PAGE 4
180 1 // clear the Sleep flag.
181 1 Sleep = FALSE;
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