?? fw.lst
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C51 COMPILER V6.10 FW 01/20/2009 06:12:59 PAGE 1
C51 COMPILER V6.10, COMPILATION OF MODULE FW
OBJECT MODULE PLACED IN .\FW.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE .\FW.C OPTIMIZE(6,SPEED) DEBUG OBJE
-CTEXTEND CODE SYMBOLS PAGEWIDTH(80)
stmt level source
1 //----------------------------------------------------------------
--------------
2 // File: fw.c
3 // Contents: Firmware frameworks task dispatcher and device re
-quest parser
4 // source.
5 //
6 // indent 3. NO TABS!
7 //
8 // $Revision: 17 $
9 // $Date: 11/15/01 5:45p $
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 se
-c at 48
20 #define _IFREQ 48000 // IFCLK constant for Synchroniza
-tion Delay
21 #define _CFREQ 48000 // CLKOUT constant for Synchroniz
-ation 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 wel
C51 COMPILER V6.10 FW 01/20/2009 06:12:59 PAGE 2
-l...
44 // ...these have been replaced by GPIFTC[B3:B0] registers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
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 s
C51 COMPILER V6.10 FW 01/20/2009 06:12:59 PAGE 3
-tatus 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
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 descri
-ptor table.
125 1 // Since the SUDPTRH and SUDPTRL are assigned the address of th
-e descriptor
126 1 // table, the descriptor table must be located in on-part memor
-y.
127 1 // The 4K demo tools locate all code sections in external memor
-y.
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 (EZUSB_HIGHSPEED())
137 1 {
138 2 pConfigDscr = pHighSpeedConfigDscr;
139 2 pOtherConfigDscr = pFullSpeedConfigDscr;
140 2 }
141 1 else
142 1 {
143 2 pConfigDscr = pFullSpeedConfigDscr;
144 2 pOtherConfigDscr = pHighSpeedConfigDscr;
145 2 }
146 1
147 1 if ((WORD)&DeviceDscr & 0xe000)
148 1 {
149 2 IntDescrAddr = INTERNAL_DSCR_ADDR;
150 2 ExtDescrAddr = (WORD)&DeviceDscr;
151 2 DevDescrLen = (WORD)&UserDscr - (WORD)&DeviceDscr + 2;
C51 COMPILER V6.10 FW 01/20/2009 06:12:59 PAGE 4
152 2 for (i = 0; i < DevDescrLen; i++)
153 2 *((BYTE xdata *)IntDescrAddr+i) = 0xCD;
154 2 for (i = 0; i < DevDescrLen; i++)
155 2 *((BYTE xdata *)IntDescrAddr+i) = *((BYTE xdata *)ExtDesc
-rAddr+i);
156 2 pDeviceDscr = IntDescrAddr;
157 2 offset = (WORD)&DeviceDscr - INTERNAL_DSCR_ADDR;
158 2 pDeviceQualDscr -= offset;
159 2 pConfigDscr -= offset;
160 2 pOtherConfigDscr -= offset;
161 2 pHighSpeedConfigDscr -= offset;
162 2 pFullSpeedConfigDscr -= offset;
163 2 pStringDscr -= offset;
164 2 }
165 1
166 1 EZUSB_IRQ_ENABLE(); // Enable USB interrupt (INT2)
167 1 EZUSB_ENABLE_RSMIRQ(); // Wake-up interrupt
168 1
169 1 INTSETUP |= (bmAV2EN | bmAV4EN); // Enable INT 2 & 4 autove
-ctoring
170 1
171 1 USBIE |= bmSUDAV | bmSUTOK | bmSUSP | bmURES | bmHSGRANT; //
-Enable selected interrupts
172 1 EA = 1; // Enable 8051 interrupts
173 1
174 1 #ifndef NO_RENUM
175 1 // Renumerate if necessary. Do this by checking the renum bit.
- If it
176 1 // is already set, there is no need to renumerate. The renum b
-it will
177 1 // already be set if this firmware was loaded from an eeprom.
178 1 if(!(USBCS & bmRENUM))
179 1 {
180 2 EZUSB_Discon(TRUE); // renumerate
181 2 }
182 1 #endif
183 1
184 1 // unconditionally re-connect. If we loaded from eeprom we are
185 1 // disconnected and need to connect. If we just renumerated th
-is
186 1 // is not necessary but doesn't hurt anything
187 1 USBCS &=~bmDISCON;
188 1
189 1 CKCON = (CKCON&(~bmSTRETCH)) | FW_STRETCH_VALUE; // Set stretch
- to 0 (after renumeration)
190 1
191 1 // clear the Sleep flag.
192 1 Sleep = FALSE;
193 1
194 1 // Task Dispatcher
195 1 while(TRUE) // Main Loop
196 1 {
197 2 if(GotSUD) // Wait for SUDAV
198 2 {
199 3 SetupCommand(); // Implement setup command
200 3 GotSUD = FALSE; // Clear SUDAV flag
201 3 }
202 2
203 2 // Poll User Device
204 2 // NOTE: Idle mode stops the processor clock. There are onl
-y two
205 2 // ways out of idle mode, the WAKEUP pin, and detection of t
C51 COMPILER V6.10 FW 01/20/2009 06:12:59 PAGE 5
-he USB
206 2 // resume state on the USB bus. The timers will stop and th
-e
207 2 // processor will not wake up on any other interrupts.
208 2 if (Sleep)
209 2 {
210 3 if(TD_Suspend())
211 3 {
212 4 Sleep = FALSE; // Clear the "go to sleep"
- flag. Do it here to prevent any race condition between wakeup and the next sle
-ep.
213 4 do
214 4 {
215 5 EZUSB_Susp(); // Place processor in id
-le mode.
216 5 }
217 4 while(!Rwuen && EZUSB_EXTWAKEUP());
218 4 // Must continue to go back into suspend if the ho
-st has disabled remote wakeup
219 4 // *and* the wakeup was caused by the external wak
-eup pin.
220 4
221 4 // 8051 activity will resume here due to USB bus or W
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