📄 bulkloop.lst
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C51 COMPILER V7.02b BULKLOOP 11/20/2004 11:59:23 PAGE 1
C51 COMPILER V7.02b, COMPILATION OF MODULE BULKLOOP
OBJECT MODULE PLACED IN bulkloop.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE bulkloop.c DEBUG OBJECTEXTEND
stmt level source
1 #pragma NOIV // Do not generate interrupt vectors
2 //-----------------------------------------------------------------------------
3 // File: bulkloop.c
4 // Contents: Hooks required to implement USB peripheral function.
5 //
6 // Copyright (c) 2000 Cypress Semiconductor All rights reserved
7 //-----------------------------------------------------------------------------
8 #include "fx2.h"
9 #include "fx2regs.h"
10 #include "fx2sdly.h" // SYNCDELAY macro
11
12 extern BOOL GotSUD; // Received setup data flag
13 extern BOOL Sleep;
14 extern BOOL Rwuen;
15 extern BOOL Selfpwr;
16
17 BYTE Configuration; // Current configuration
18 BYTE AlternateSetting; // Alternate settings
19
20 #define VR_NAKALL_ON 0xD0
21 #define VR_NAKALL_OFF 0xD1
22
23 //-----------------------------------------------------------------------------
24 // Task Dispatcher hooks
25 // The following hooks are called by the task dispatcher.
26 //-----------------------------------------------------------------------------
27
28 void TD_Init(void) // Called once at startup
29 {
30 1 // set the CPU clock to 48MHz
31 1 CPUCS = ((CPUCS & ~bmCLKSPD) | bmCLKSPD1) ;
32 1
33 1 // set the slave FIFO interface to 48MHz
34 1 IFCONFIG |= 0x40;
35 1
36 1 // Registers which require a synchronization delay, see section 15.14
37 1 // FIFORESET FIFOPINPOLAR
38 1 // INPKTEND OUTPKTEND
39 1 // EPxBCH:L REVCTL
40 1 // GPIFTCB3 GPIFTCB2
41 1 // GPIFTCB1 GPIFTCB0
42 1 // EPxFIFOPFH:L EPxAUTOINLENH:L
43 1 // EPxFIFOCFG EPxGPIFFLGSEL
44 1 // PINFLAGSxx EPxFIFOIRQ
45 1 // EPxFIFOIE GPIFIRQ
46 1 // GPIFIE GPIFADRH:L
47 1 // UDMACRCH:L EPxGPIFTRIG
48 1 // GPIFTRIG
49 1
50 1 // Note: The pre-REVE EPxGPIFTCH/L register are affected, as well...
51 1 // ...these have been replaced by GPIFTC[B3:B0] registers
52 1
53 1 // default: all endpoints have their VALID bit set
54 1 // default: TYPE1 = 1 and TYPE0 = 0 --> BULK
55 1 // default: EP2 and EP4 DIR bits are 0 (OUT direction)
C51 COMPILER V7.02b BULKLOOP 11/20/2004 11:59:23 PAGE 2
56 1 // default: EP6 and EP8 DIR bits are 1 (IN direction)
57 1 // default: EP2, EP4, EP6, and EP8 are double buffered
58 1
59 1 // we are just using the default values, yes this is not necessary...
60 1 EP1OUTCFG = 0xA0;
61 1 EP1INCFG = 0xA0;
62 1 SYNCDELAY; // see TRM section 15.14
63 1 EP2CFG = 0xA2;
64 1 SYNCDELAY;
65 1 EP4CFG = 0xA0;
66 1 SYNCDELAY;
67 1 EP6CFG = 0xE2;
68 1 SYNCDELAY;
69 1 EP8CFG = 0xE0;
70 1
71 1 // out endpoints do not come up armed
72 1
73 1 // since the defaults are double buffered we must write dummy byte counts twice
74 1 SYNCDELAY;
75 1 EP2BCL = 0x80; // arm EP2OUT by writing byte count w/skip.
76 1 SYNCDELAY;
77 1 EP2BCL = 0x80;
78 1 SYNCDELAY;
79 1 EP4BCL = 0x80; // arm EP4OUT by writing byte count w/skip.
80 1 SYNCDELAY;
81 1 EP4BCL = 0x80;
82 1
83 1 // enable dual autopointer feature
84 1 AUTOPTRSETUP |= 0x01;
85 1
86 1 Rwuen = TRUE; // Enable remote-wakeup
87 1 }
88
89
90 void TD_Poll(void) // Called repeatedly while the device is idle
91 {
92 1 WORD i;
93 1 WORD count;
94 1
95 1 if(!(EP2468STAT & bmEP2EMPTY))
96 1 { // check EP2 EMPTY(busy) bit in EP2468STAT (SFR), core set's this bit when FIFO is empty
97 2 if(!(EP2468STAT & bmEP6FULL))
98 2 { // check EP6 FULL(busy) bit in EP2468STAT (SFR), core set's this bit when FIFO is full
99 3 APTR1H = MSB( &EP2FIFOBUF );
100 3 APTR1L = LSB( &EP2FIFOBUF );
101 3
102 3 AUTOPTRH2 = MSB( &EP6FIFOBUF );
103 3 AUTOPTRL2 = LSB( &EP6FIFOBUF );
104 3
105 3 count = (EP2BCH << 8) + EP2BCL;
106 3
107 3 // loop EP2OUT buffer data to EP6IN
108 3 for( i = 0x0000; i < count; i++ )
109 3 {
110 4 // setup to transfer EP2OUT buffer to EP6IN buffer using AUTOPOINTER(s)
111 4 EXTAUTODAT2 = EXTAUTODAT1;
112 4 }
113 3 EP6BCH = EP2BCH;
114 3 SYNCDELAY;
115 3 EP6BCL = EP2BCL; // arm EP6IN
116 3 SYNCDELAY;
117 3 EP2BCL = 0x80; // re(arm) EP2OUT
C51 COMPILER V7.02b BULKLOOP 11/20/2004 11:59:23 PAGE 3
118 3 }
119 2 }
120 1
121 1 if(!(EP2468STAT & bmEP4EMPTY))
122 1 { // check EP4 EMPTY(busy) bit in EP2468STAT (SFR), core set's this bit when FIFO is empty
123 2 if(!(EP2468STAT & bmEP8FULL))
124 2 { // check EP8 FULL(busy) bit in EP2468STAT (SFR), core set's this bit when FIFO is full
125 3 APTR1H = MSB( &EP4FIFOBUF );
126 3 APTR1L = LSB( &EP4FIFOBUF );
127 3
128 3 AUTOPTRH2 = MSB( &EP8FIFOBUF );
129 3 AUTOPTRL2 = LSB( &EP8FIFOBUF );
130 3
131 3 count = (EP4BCH << 8) + EP4BCL;
132 3
133 3 // loop EP4OUT buffer data to EP8IN
134 3 for( i = 0x0000; i < count; i++ )
135 3 {
136 4 // setup to transfer EP4OUT buffer to EP8IN buffer using AUTOPOINTER(s)
137 4 EXTAUTODAT2 = EXTAUTODAT1;
138 4 }
139 3 EP8BCH = EP4BCH;
140 3 SYNCDELAY;
141 3 EP8BCL = EP4BCL; // arm EP8IN
142 3 SYNCDELAY;
143 3 EP4BCL = 0x80; // re(arm) EP4OUT
144 3 }
145 2 }
146 1 }
147
148 BOOL TD_Suspend(void) // Called before the device goes into suspend mode
149 {
150 1 return(TRUE);
151 1 }
152
153 BOOL TD_Resume(void) // Called after the device resumes
154 {
155 1 return(TRUE);
156 1 }
157
158 //-----------------------------------------------------------------------------
159 // Device Request hooks
160 // The following hooks are called by the end point 0 device request parser.
161 //-----------------------------------------------------------------------------
162
163 BOOL DR_GetDescriptor(void)
164 {
165 1 return(TRUE);
166 1 }
167
168 BOOL DR_SetConfiguration(void) // Called when a Set Configuration command is received
169 {
170 1 Configuration = SETUPDAT[2];
171 1 return(TRUE); // Handled by user code
172 1 }
173
174 BOOL DR_GetConfiguration(void) // Called when a Get Configuration command is received
175 {
176 1 EP0BUF[0] = Configuration;
177 1 EP0BCH = 0;
178 1 EP0BCL = 1;
179 1 return(TRUE); // Handled by user code
C51 COMPILER V7.02b BULKLOOP 11/20/2004 11:59:23 PAGE 4
180 1 }
181
182 BOOL DR_SetInterface(void) // Called when a Set Interface command is received
183 {
184 1 AlternateSetting = SETUPDAT[2];
185 1 return(TRUE); // Handled by user code
186 1 }
187
188 BOOL DR_GetInterface(void) // Called when a Set Interface command is received
189 {
190 1 EP0BUF[0] = AlternateSetting;
191 1 EP0BCH = 0;
192 1 EP0BCL = 1;
193 1 return(TRUE); // Handled by user code
194 1 }
195
196 BOOL DR_GetStatus(void)
197 {
198 1 return(TRUE);
199 1 }
200
201 BOOL DR_ClearFeature(void)
202 {
203 1 return(TRUE);
204 1 }
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