|
2059
|
1 //========================================================================== |
|
|
2 // |
|
|
3 // can_overrun1.c |
|
|
4 // |
|
|
5 // Test CAN device drivers |
|
|
6 // |
|
|
7 //========================================================================== |
|
|
8 //####ECOSGPLCOPYRIGHTBEGIN#### |
|
|
9 // ------------------------------------------- |
|
|
10 // This file is part of eCos, the Embedded Configurable Operating System. |
|
|
11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. |
|
|
12 // |
|
|
13 // eCos is free software; you can redistribute it and/or modify it under |
|
|
14 // the terms of the GNU General Public License as published by the Free |
|
|
15 // Software Foundation; either version 2 or (at your option) any later version. |
|
|
16 // |
|
|
17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY |
|
|
18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
|
19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
|
20 // for more details. |
|
|
21 // |
|
|
22 // You should have received a copy of the GNU General Public License along |
|
|
23 // with eCos; if not, write to the Free Software Foundation, Inc., |
|
|
24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
|
|
25 // |
|
|
26 // As a special exception, if other files instantiate templates or use macros |
|
|
27 // or inline functions from this file, or you compile this file and link it |
|
|
28 // with other works to produce a work based on this file, this file does not |
|
|
29 // by itself cause the resulting work to be covered by the GNU General Public |
|
|
30 // License. However the source code for this file must still be made available |
|
|
31 // in accordance with section (3) of the GNU General Public License. |
|
|
32 // |
|
|
33 // This exception does not invalidate any other reasons why a work based on |
|
|
34 // this file might be covered by the GNU General Public License. |
|
|
35 // |
|
|
36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. |
|
|
37 // at http://sources.redhat.com/ecos/ecos-license/ |
|
|
38 // ------------------------------------------- |
|
|
39 //####ECOSGPLCOPYRIGHTEND#### |
|
|
40 //========================================================================== |
|
|
41 //#####DESCRIPTIONBEGIN#### |
|
|
42 // |
|
|
43 // Author(s): Uwe Kindler |
|
|
44 // Contributors: Uwe Kindler |
|
|
45 // Date: 2005-08-07 |
|
|
46 // Description: Simple read/write test of CAN driver |
|
|
47 //####DESCRIPTIONEND#### |
|
|
48 |
|
|
49 |
|
|
50 //=========================================================================== |
|
|
51 // INCLUDES |
|
|
52 //=========================================================================== |
|
|
53 #include <pkgconf/system.h> |
|
|
54 |
|
|
55 #include <cyg/infra/testcase.h> // test macros |
|
|
56 #include <cyg/infra/cyg_ass.h> // assertion macros |
|
|
57 #include <cyg/infra/diag.h> |
|
|
58 |
|
|
59 // Package requirements |
|
|
60 #if defined(CYGPKG_IO_CAN) && defined(CYGPKG_KERNEL) |
|
|
61 |
|
|
62 #include <pkgconf/kernel.h> |
|
|
63 #include <cyg/io/io.h> |
|
|
64 #include <cyg/io/canio.h> |
|
|
65 |
|
|
66 // Package option requirements |
|
|
67 #if defined(CYGFUN_KERNEL_API_C) |
|
|
68 |
|
|
69 #include <cyg/hal/hal_arch.h> // CYGNUM_HAL_STACK_SIZE_TYPICAL |
|
|
70 #include <cyg/kernel/kapi.h> |
|
|
71 |
|
|
72 // tx event support required |
|
|
73 #if defined(CYGOPT_IO_CAN_TX_EVENT_SUPPORT) |
|
|
74 |
|
|
75 |
|
|
76 //=========================================================================== |
|
|
77 // DATA TYPES |
|
|
78 //=========================================================================== |
|
|
79 typedef struct st_thread_data |
|
|
80 { |
|
|
81 cyg_thread obj; |
|
|
82 long stack[CYGNUM_HAL_STACK_SIZE_TYPICAL]; |
|
|
83 cyg_handle_t hdl; |
|
|
84 } thread_data_t; |
|
|
85 |
|
|
86 |
|
|
87 //=========================================================================== |
|
|
88 // LOCAL DATA |
|
|
89 //=========================================================================== |
|
|
90 cyg_thread_entry_t can0_thread; |
|
|
91 thread_data_t can0_thread_data; |
|
|
92 |
|
|
93 |
|
|
94 //=========================================================================== |
|
|
95 // LOCAL FUNCTIONS |
|
|
96 //=========================================================================== |
|
|
97 #include "can_test_aux.inl" // include CAN test auxiliary functions |
|
|
98 |
|
|
99 |
|
|
100 //=========================================================================== |
|
|
101 // WRITER THREAD |
|
|
102 //=========================================================================== |
|
|
103 void can0_thread(cyg_addrword_t data) |
|
|
104 { |
|
|
105 cyg_io_handle_t hCAN0; |
|
|
106 cyg_uint8 i; |
|
|
107 cyg_uint32 len; |
|
|
108 cyg_can_buf_info_t buf_info; |
|
|
109 cyg_can_event rx_event; |
|
|
110 cyg_can_message tx_msg = |
|
|
111 { |
|
|
112 0x000, // CAN identifier |
|
2377
|
113 data : |
|
|
114 { |
|
|
115 {0x00, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 }// 8 data bytes |
|
|
116 }, |
|
2059
|
117 CYGNUM_CAN_ID_STD, // standard frame |
|
|
118 CYGNUM_CAN_FRAME_DATA, // data frame |
|
|
119 0, // data length code |
|
|
120 }; |
|
|
121 |
|
|
122 if (ENOERR != cyg_io_lookup("/dev/can0", &hCAN0)) |
|
|
123 { |
|
|
124 CYG_TEST_FAIL_FINISH("Error opening /dev/can0"); |
|
|
125 } |
|
|
126 |
|
|
127 len = sizeof(buf_info); |
|
|
128 if (ENOERR != cyg_io_get_config(hCAN0, CYG_IO_GET_CONFIG_CAN_BUFFER_INFO ,&buf_info, &len)) |
|
|
129 { |
|
|
130 CYG_TEST_FAIL_FINISH("Error reading config of /dev/can0"); |
|
|
131 } |
|
|
132 |
|
|
133 if (buf_info.rx_count > 0) |
|
|
134 { |
|
|
135 CYG_TEST_FAIL_FINISH("Empty RX buffer expected for /dev/can0"); |
|
|
136 } |
|
|
137 |
|
|
138 // |
|
|
139 // now we send exactly one CAN message more than it is space in left in buffer |
|
|
140 // Because each TX message will cause a TX event in receive queue we should |
|
|
141 // get a RX queue overrun |
|
|
142 // |
|
|
143 diag_printf("Sending %d CAN messages to /dev/can0\n", buf_info.rx_bufsize + 1); |
|
|
144 for (i = 0; i <= buf_info.rx_bufsize; ++i) |
|
|
145 { |
|
2377
|
146 CYG_CAN_MSG_SET_STD_ID(tx_msg, 0x000 + i); |
|
|
147 CYG_CAN_MSG_SET_DATA(tx_msg, 0, i); |
|
2059
|
148 len = sizeof(tx_msg); |
|
|
149 |
|
|
150 if (ENOERR != cyg_io_write(hCAN0, &tx_msg, &len)) |
|
|
151 { |
|
|
152 CYG_TEST_FAIL_FINISH("Error writing to /dev/can0"); |
|
|
153 } |
|
|
154 else |
|
|
155 { |
|
|
156 print_can_msg(&tx_msg, ""); |
|
|
157 } |
|
|
158 } |
|
|
159 |
|
|
160 // |
|
|
161 // now check if receive queue is completely filled - that means number of rx events should |
|
|
162 // be equal to RX queue size |
|
|
163 // |
|
|
164 if (ENOERR != cyg_io_get_config(hCAN0, CYG_IO_GET_CONFIG_CAN_BUFFER_INFO ,&buf_info, &len)) |
|
|
165 { |
|
|
166 CYG_TEST_FAIL_FINISH("Error reading config of /dev/can0"); |
|
|
167 } |
|
|
168 |
|
|
169 if (buf_info.rx_bufsize != buf_info.rx_count) |
|
|
170 { |
|
|
171 CYG_TEST_FAIL_FINISH("Number of events in /dev/can0 RX queue differs from queue size"); |
|
|
172 } |
|
|
173 |
|
|
174 // |
|
|
175 // Now read all events from receive queue - if everything is o.k. than the oldest |
|
|
176 // event should be overwritten by the latest sent message and the last event in |
|
|
177 // queue should indicate a RX overrun |
|
|
178 // |
|
|
179 diag_printf("\nReceiving %d CAN messages from /dev/can0\n", buf_info.rx_bufsize); |
|
|
180 for (i = 0; i < buf_info.rx_bufsize; ++i) |
|
|
181 { |
|
|
182 len = sizeof(rx_event); |
|
|
183 |
|
|
184 if (ENOERR != cyg_io_read(hCAN0, &rx_event, &len)) |
|
|
185 { |
|
|
186 CYG_TEST_FAIL_FINISH("Error reading from /dev/can1"); |
|
|
187 } |
|
|
188 else |
|
|
189 { |
|
|
190 // |
|
|
191 // if we received a valid TX event then we can print the message |
|
|
192 // |
|
|
193 if (rx_event.flags & CYGNUM_CAN_EVENT_TX) |
|
|
194 { |
|
|
195 print_can_msg(&rx_event.msg, ""); |
|
2377
|
196 if (rx_event.msg.data.bytes[0] != (i + 1)) |
|
2059
|
197 { |
|
|
198 CYG_TEST_FAIL_FINISH("Received /dev/can0 TX event contains invalid data"); |
|
|
199 } |
|
|
200 } |
|
|
201 else |
|
|
202 { |
|
|
203 CYG_TEST_FAIL_FINISH("Unexpected CAN event for /dev/can0"); |
|
|
204 } |
|
|
205 |
|
|
206 // |
|
|
207 // now check if any other flag is set |
|
|
208 // |
|
|
209 if (rx_event.flags & CYGNUM_CAN_EVENT_OVERRUN_RX) |
|
|
210 { |
|
|
211 diag_printf("RX queue overrun successfully indicated for /dev/can0\n"); |
|
|
212 if (i < (buf_info.rx_bufsize - 1)) |
|
|
213 { |
|
|
214 CYG_TEST_FAIL_FINISH("RX queue overrun occured too early /dev/can0"); |
|
|
215 } |
|
|
216 else |
|
|
217 { |
|
|
218 CYG_TEST_PASS_FINISH("can_overrun1 test OK"); |
|
|
219 } |
|
|
220 } // if (rx_event.flags & CYGNUM_CAN_EVENT_OVERRUN_RX) |
|
|
221 } |
|
|
222 } // for (i = 0; i < buf_info.rx_bufsize; ++i) |
|
|
223 |
|
|
224 CYG_TEST_FAIL_FINISH("RX overrun expected but not received for /dev/can0"); |
|
|
225 } |
|
|
226 |
|
|
227 |
|
|
228 |
|
|
229 void |
|
|
230 cyg_start(void) |
|
|
231 { |
|
|
232 CYG_TEST_INIT(); |
|
|
233 |
|
|
234 // |
|
|
235 // create the two threads which access the CAN device driver |
|
|
236 // |
|
|
237 cyg_thread_create(4, can0_thread, |
|
|
238 (cyg_addrword_t) 0, |
|
|
239 "can0_thread", |
|
|
240 (void *) can0_thread_data.stack, |
|
|
241 1024 * sizeof(long), |
|
|
242 &can0_thread_data.hdl, |
|
|
243 &can0_thread_data.obj); |
|
|
244 |
|
|
245 cyg_thread_resume(can0_thread_data.hdl); |
|
|
246 |
|
|
247 cyg_scheduler_start(); |
|
|
248 } |
|
|
249 |
|
|
250 #else // CYGOPT_IO_CAN_TX_EVENT_SUPPORT |
|
|
251 #define N_A_MSG "TX event support required for IO/CAN" |
|
|
252 #endif |
|
|
253 |
|
|
254 #else // CYGFUN_KERNEL_API_C |
|
|
255 #define N_A_MSG "Needs kernel C API" |
|
|
256 #endif |
|
|
257 |
|
|
258 #else // CYGPKG_IO_CAN && CYGPKG_KERNEL |
|
|
259 #define N_A_MSG "Needs IO/CAN and Kernel" |
|
|
260 #endif |
|
|
261 |
|
|
262 #ifdef N_A_MSG |
|
|
263 void |
|
|
264 cyg_start( void ) |
|
|
265 { |
|
|
266 CYG_TEST_INIT(); |
|
|
267 CYG_TEST_NA( N_A_MSG); |
|
|
268 } |
|
|
269 #endif // N_A_MSG |
|
|
270 |
|
|
271 // EOF serial4.c |
