📄 isr.lst
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C51 COMPILER V7.06 ISR 08/06/2006 09:11:06 PAGE 1
C51 COMPILER V7.06, COMPILATION OF MODULE ISR
OBJECT MODULE PLACED IN ISR.OBJ
COMPILER INVOKED BY: D:\Keil\C51\BIN\C51.EXE ISR.C BROWSE DEBUG OBJECTEXTEND
stmt level source
1 /*
2 //*************************************************************************
3 //
4 // P H I L I P S P R O P R I E T A R Y
5 //
6 // COPYRIGHT (c) 1997 BY PHILIPS SINGAPORE.
7 // -- ALL RIGHTS RESERVED --
8 //
9 // File Name: ISR.C
10 // Author: Wenkai Du
11 // Created: 19 Dec 97
12 // Modified:
13 // Revision: 3.0
14 //
15 //*************************************************************************
16 //
17 // 98/11/25 Added I/O mode Main endpoints access. (WK)
18 //*************************************************************************
19 */
20 #include <stdio.h>
21 #include <string.h>
22
23 #include <reg51.h> /* special function register declarations */
24
25 #include "epphal.h"
26 #include "d12ci.h"
27 #include "mainloop.h"
28 #include "usb100.h"
29
30 extern void bus_reset(void);
31
32 extern void ep0_txdone(void);
33 extern void ep0_rxdone(void);
34
35 extern void ep1_txdone(void);
36 extern void ep1_rxdone(void);
37
38 extern void main_txdone(void);
39 extern void main_rxdone(void);
40
41 extern void dma_eot(void);
42
43 /*
44 //*************************************************************************
45 // Public static data
46 //*************************************************************************
47 */
48
49 EPPFLAGS bEPPflags;
50
51 /* Control endpoint TX/RX buffers */
52 extern CONTROL_XFER ControlData;
53
54 /* ISR static vars */
55 unsigned char idata GenEpBuf[EP1_PACKET_SIZE];
C51 COMPILER V7.06 ISR 08/06/2006 09:11:06 PAGE 2
56 unsigned char idata EpBuf[EP2_PACKET_SIZE];
57 IO_REQUEST idata ioRequest;
58 unsigned char ioSize, ioCount;
59
60 unsigned long ClockTicks = 0;
61 unsigned char xdata MainEpBuf[256];
62
63 extern BOOL bNoRAM;
64
65 timer_isr() interrupt 1
66 {
67 1 DISABLE;
68 1 ClockTicks++;
69 1 bEPPflags.bits.timer = 1;
70 1 ENABLE;
71 1 }
72
73
74 usb_isr() interrupt 0
75 {
76 1 DISABLE;
77 1 fn_usb_isr();
78 1 ENABLE;
79 1 }
80
81 void fn_usb_isr()
82 {
83 1 unsigned int i_st;
84 1
85 1 bEPPflags.bits.in_isr = 1;
86 1
87 1 i_st = D12_ReadInterruptRegister();
88 1
89 1 if(i_st != 0) {
90 2 if(i_st & D12_INT_BUSRESET) {
91 3 bus_reset();
92 3 bEPPflags.bits.bus_reset = 1;
93 3 }
94 2
95 2 if(i_st & D12_INT_EOT)
96 2 dma_eot();
97 2
98 2 if(i_st & D12_INT_SUSPENDCHANGE)
99 2 bEPPflags.bits.suspend = 1;
100 2
101 2 if(i_st & D12_INT_ENDP0IN)
102 2 ep0_txdone();
103 2 if(i_st & D12_INT_ENDP0OUT)
104 2 ep0_rxdone();
105 2 if(i_st & D12_INT_ENDP1IN)
106 2 ep1_txdone();
107 2 if(i_st & D12_INT_ENDP1OUT)
108 2 ep1_rxdone();
109 2 if(i_st & D12_INT_ENDP2IN)
110 2 main_txdone();
111 2 if(i_st & D12_INT_ENDP2OUT)
112 2 main_rxdone();
113 2 }
114 1
115 1 bEPPflags.bits.in_isr = 0;
116 1 }
117
C51 COMPILER V7.06 ISR 08/06/2006 09:11:06 PAGE 3
118 void bus_reset(void)
119 {
120 1 }
121
122 void ep0_rxdone(void)
123 {
124 1 unsigned char ep_last, i;
125 1
126 1 ep_last = D12_ReadLastTransactionStatus(0); // Clear interrupt flag
127 1
128 1 if (ep_last & D12_SETUPPACKET) {
129 2
130 2 ControlData.wLength = 0;
131 2 ControlData.wCount = 0;
132 2
133 2 if( D12_ReadEndpoint(0, sizeof(ControlData.DeviceRequest),
134 2 (unsigned char *)(&(ControlData.DeviceRequest))) != sizeof(DEVICE_REQUEST) ) {
135 3
136 3 D12_SetEndpointStatus(0, 1);
137 3 D12_SetEndpointStatus(1, 1);
138 3 bEPPflags.bits.control_state = USB_IDLE;
139 3
140 3 return;
141 3 }
142 2
143 2 ControlData.DeviceRequest.wValue = SWAP(ControlData.DeviceRequest.wValue);
144 2 ControlData.DeviceRequest.wIndex = SWAP(ControlData.DeviceRequest.wIndex);
145 2 ControlData.DeviceRequest.wLength = SWAP(ControlData.DeviceRequest.wLength);
146 2
147 2 // Acknowledge setup here to unlock in/out endp
148 2 D12_AcknowledgeEndpoint(0);
149 2 D12_AcknowledgeEndpoint(1);
150 2
151 2 ControlData.wLength = ControlData.DeviceRequest.wLength;
152 2 ControlData.wCount = 0;
153 2
154 2 if (ControlData.DeviceRequest.bmRequestType & (unsigned char)USB_ENDPOINT_DIRECTION_MASK) {
155 3 bEPPflags.bits.setup_packet = 1;
156 3 bEPPflags.bits.control_state = USB_IDLE; /* get command */
157 3 }
158 2 else {
159 3 if (ControlData.DeviceRequest.wLength == 0) {
160 4 bEPPflags.bits.setup_packet = 1;
161 4 bEPPflags.bits.control_state = USB_IDLE; /* set command */
162 4 }
163 3 else {
164 4 if(ControlData.DeviceRequest.wLength > MAX_CONTROLDATA_SIZE) {
165 5 bEPPflags.bits.control_state = USB_IDLE;
166 5 D12_SetEndpointStatus(0, 1);
167 5 D12_SetEndpointStatus(1, 1);
168 5 }
169 4 else {
170 5 bEPPflags.bits.control_state = USB_RECEIVE; /* set command with OUT token */
171 5 }
172 4 } // set command with data
173 3 } // else set command
174 2 } // if setup packet
175 1
176 1 else if (bEPPflags.bits.control_state == USB_RECEIVE) {
177 2 i = D12_ReadEndpoint(0, EP0_PACKET_SIZE,
178 2 ControlData.dataBuffer + ControlData.wCount);
179 2
C51 COMPILER V7.06 ISR 08/06/2006 09:11:06 PAGE 4
180 2 ControlData.wCount += i;
181 2 if( i != EP0_PACKET_SIZE || ControlData.wCount >= ControlData.wLength) {
182 3 bEPPflags.bits.setup_packet = 1;
183 3 bEPPflags.bits.control_state = USB_IDLE;
184 3 }
185 2 }
186 1
187 1 else {
188 2 bEPPflags.bits.control_state = USB_IDLE;
189 2 }
190 1 }
191
192 void ep0_txdone(void)
193 {
194 1 short i = ControlData.wLength - ControlData.wCount;
195 1
196 1 D12_ReadLastTransactionStatus(1); // Clear interrupt flag
197 1
198 1 if (bEPPflags.bits.control_state != USB_TRANSMIT)
199 1 return;
200 1
201 1 if( i >= EP0_PACKET_SIZE) {
202 2 D12_WriteEndpoint(1, EP0_PACKET_SIZE, ControlData.pData + ControlData.wCount);
203 2 ControlData.wCount += EP0_PACKET_SIZE;
204 2
205 2 bEPPflags.bits.control_state = USB_TRANSMIT;
206 2 }
207 1 else if( i != 0) {
208 2 D12_WriteEndpoint(1, i, ControlData.pData + ControlData.wCount);
209 2 ControlData.wCount += i;
210 2
211 2 bEPPflags.bits.control_state = USB_IDLE;
212 2 }
213 1 else if (i == 0){
214 2 D12_WriteEndpoint(1, 0, 0); // Send zero packet at the end ???
215 2
216 2 bEPPflags.bits.control_state = USB_IDLE;
217 2 }
218 1 }
219
220 void dma_eot(void)
221 {
222 1 }
223
224 void ep1_txdone(void)
225 {
226 1 D12_ReadLastTransactionStatus(3); /* Clear interrupt flag */
227 1 }
228
229 void ep1_rxdone(void)
230 {
231 1 unsigned char len;
232 1
233 1 D12_ReadLastTransactionStatus(2); /* Clear interrupt flag */
234 1
235 1 len = D12_ReadEndpoint(2, sizeof(GenEpBuf), GenEpBuf);
236 1
237 1 if(len != 0)
238 1 bEPPflags.bits.ep1_rxdone = 1;
239 1 }
240
241 void main_txdone(void)
C51 COMPILER V7.06 ISR 08/06/2006 09:11:06 PAGE 5
242 {
243 1 unsigned char len;
244 1
245 1 D12_ReadLastTransactionStatus(5); /* Clear interrupt flag */
246 1
247 1 len = ioSize - ioCount;
248 1 if(len == 0) {
249 2 if(bEPPflags.bits.dma_state == DMA_PENDING)
250 2 bEPPflags.bits.setup_dma ++;
251 2 else
252 2 bEPPflags.bits.dma_state = DMA_IDLE;
253 2 }
254 1 else {
255 2 if(len > 64)
256 2 len = 64;
257 2 if(bNoRAM)
258 2 len = D12_WriteEndpoint(5, len, EpBuf + ioCount);
259 2 else
260 2 len = D12_WriteEndpoint(5, len, MainEpBuf + ioCount);
261 2 ioCount += len;
262 2 }
263 1 }
264
265 void main_rxdone(void)
266 {
267 1 unsigned char len;
268 1
269 1 D12_ReadLastTransactionStatus(4); /* Clear interrupt flag */
270 1
271 1 if(bNoRAM)
272 1 len = D12_ReadEndpoint(4, 64, EpBuf + ioCount);
273 1 else
274 1 len = D12_ReadEndpoint(4, 64, MainEpBuf + ioCount);
275 1 ioCount += len;
276 1 if(bNoRAM)
277 1 len = D12_ReadEndpoint(4, 64, EpBuf + ioCount);
278 1 else
279 1 len = D12_ReadEndpoint(4, 64, MainEpBuf + ioCount);
280 1 ioCount += len;
281 1 if(ioCount >= ioSize) {
282 2 if(bEPPflags.bits.dma_state == DMA_PENDING)
283 2 bEPPflags.bits.setup_dma ++;
284 2 else
285 2 bEPPflags.bits.dma_state = DMA_IDLE;
286 2 }
287 1 }
288
289
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 873 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = 256 ----
PDATA SIZE = ---- ----
DATA SIZE = 8 5
IDATA SIZE = 74 ----
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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