352 lines
12 KiB
C
352 lines
12 KiB
C
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/*
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ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#include "ch.h"
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#include "hal.h"
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#include "hal_dma_lld.h"
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#include "string.h"
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const char * start_msg = "\r\n\r\nExecuting DMA test suite...\r\n";
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const char * test_1_msg =
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"TEST 1: Word-to-word memcpy with DMA engine, no callbacks\r\n";
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const char * test_2_msg =
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"TEST 2: Byte-to-byte memcpy with DMA engine, no callbacks\r\n";
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const char * test_3_msg =
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"TEST 3: Byte-to-byte memset with DMA engine, no callbacks\r\n";
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const char * test_4_msg =
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"TEST 4: Word-to-word memcpy with DMA engine, with callback\r\n";
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const char * test_5_msg =
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"TEST 5: Claim DMA channel 0, perform a Word-to-word memcpy\r\n";
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const char * test_6_msg = "TEST 6: Attempt to claim already claimed DMA "
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"channel, fail. Release it, try to claim it again, "
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"and succeed.\r\n";
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const char * test_7_msg = "TEST 7: Claim DMA channel 1, perform a Word-to-word "
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"memcpy, and release it\r\n";
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const char * test_8_msg = "TEST 8: Claim all three DMA channels, try to issue dmaRequest, "
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"fail\r\n";
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const char * succeed_string = "SUCCESS\r\n\r\n";
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const char * fail_string = "FAILURE\r\n\r\n";
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char instring[256];
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char outstring[256];
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msp430x_dma_req_t * request;
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uint8_t cb_arg = 1;
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bool result;
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int result_i;
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void dma_callback_test(void * args) {
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*((uint8_t *)args) = 0;
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}
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msp430x_dma_req_t test_1_req = {
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instring, /* source address */
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outstring, /* destination address */
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9, /* number of words */
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MSP430X_DMA_SRCINCR | MSP430X_DMA_DSTINCR, /* address mode - dual increment */
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MSP430X_DMA_SRCWORD | MSP430X_DMA_DSTWORD, /* word transfer */
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MSP430X_DMA_BLOCK, /* block (and blocking) transfer */
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DMA_TRIGGER_MNEM(DMAREQ), /* software-requested trigger */
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{
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NULL, /* no callback */
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NULL /* no arguments */
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}
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};
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msp430x_dma_req_t test_2_req = {
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instring, /* source address */
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outstring, /* destination address */
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18, /* number of bytes */
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MSP430X_DMA_SRCINCR | MSP430X_DMA_DSTINCR, /* address mode - dual increment */
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MSP430X_DMA_SRCBYTE | MSP430X_DMA_DSTBYTE, /* byte transfer */
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MSP430X_DMA_BLOCK, /* block (and blocking) transfer */
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DMA_TRIGGER_MNEM(DMAREQ), /* software-requested trigger */
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{
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NULL, /* no callback */
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NULL /* no arguments */
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}
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};
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msp430x_dma_req_t test_3_req = {
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instring, /* source address */
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outstring, /* destination address */
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16, /* number of words */
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MSP430X_DMA_DSTINCR, /* address mode - dest increment only */
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MSP430X_DMA_SRCBYTE | MSP430X_DMA_DSTBYTE, /* word transfer */
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MSP430X_DMA_BLOCK, /* block (and blocking) transfer */
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DMA_TRIGGER_MNEM(DMAREQ), /* software-requested trigger */
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{
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NULL, /* no callback */
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NULL /* no arguments */
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}
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};
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msp430x_dma_req_t test_4_req = {
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instring, /* source address */
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outstring, /* destination address */
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9, /* number of words */
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MSP430X_DMA_SRCINCR | MSP430X_DMA_DSTINCR, /* address mode - dual increment */
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MSP430X_DMA_SRCWORD | MSP430X_DMA_DSTWORD, /* word transfer */
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MSP430X_DMA_BLOCK, /* block (and blocking) transfer */
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DMA_TRIGGER_MNEM(DMAREQ), /* software-requested trigger */
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{
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&dma_callback_test, /* test callback */
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&cb_arg /* test arguments */
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}
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};
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msp430x_dma_req_t test_5_req = {
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instring, /* source address */
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outstring, /* destination address */
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9, /* number of words */
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MSP430X_DMA_SRCINCR | MSP430X_DMA_DSTINCR, /* address mode - dual increment */
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MSP430X_DMA_SRCWORD | MSP430X_DMA_DSTWORD, /* word transfer */
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MSP430X_DMA_BLOCK, /* block (and blocking) transfer */
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DMA_TRIGGER_MNEM(DMAREQ), /* software-requested trigger */
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{
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NULL, /* no callback */
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NULL /* no arguments */
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}
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};
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msp430x_dma_ch_t ch = { NULL, 0, NULL };
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msp430x_dma_ch_t ch1 = { NULL, 0, NULL };
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msp430x_dma_ch_t ch2 = { NULL, 0, NULL };
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/*
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* Thread 2.
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*/
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THD_WORKING_AREA(waThread1, 2048);
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THD_FUNCTION(Thread1, arg) {
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(void)arg;
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/*
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* Activate the serial driver 0 using the driver default configuration.
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*/
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sdStart(&SD0, NULL);
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while (chnGetTimeout(&SD0, TIME_INFINITE)) {
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chnWrite(&SD0, (const uint8_t *)start_msg, strlen(start_msg));
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chThdSleepMilliseconds(2000);
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/* Test 1 - use DMA engine to execute a word-wise memory-to-memory copy. */
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chnWrite(&SD0, (const uint8_t *)test_1_msg, strlen(test_1_msg));
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strcpy(instring, "After DMA test \r\n");
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strcpy(outstring, "Before DMA test \r\n");
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if (strcmp("Before DMA test \r\n", outstring)) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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request = &test_1_req;
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chSysLock();
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dmaRequestS(request, TIME_INFINITE);
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chSysUnlock();
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if (strcmp("After DMA test \r\n", outstring)) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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else {
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chnWrite(&SD0, (const uint8_t *)succeed_string, strlen(succeed_string));
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}
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/* Test 2 - use DMA engine to execute a byte-wise memory-to-memory copy. */
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chnWrite(&SD0, (const uint8_t *)test_2_msg, strlen(test_2_msg));
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strcpy(instring, "After DMA test \r\n");
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strcpy(outstring, "Before DMA test \r\n");
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if (strcmp("Before DMA test \r\n", outstring)) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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request = &test_2_req;
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chSysLock();
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dmaRequestS(request, TIME_INFINITE);
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chSysUnlock();
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if (strcmp("After DMA test \r\n", outstring)) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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else {
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chnWrite(&SD0, (const uint8_t *)succeed_string, strlen(succeed_string));
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}
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/* Test 3 - use DMA engine to execute a word-wise memory-to-memory set. */
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chnWrite(&SD0, (const uint8_t *)test_3_msg, strlen(test_3_msg));
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strcpy(instring, "After DMA test \r\n");
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strcpy(outstring, "Before DMA test \r\n");
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if (strcmp("Before DMA test \r\n", outstring)) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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request = &test_3_req;
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chSysLock();
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dmaRequestS(request, TIME_INFINITE);
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chSysUnlock();
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if (strcmp("AAAAAAAAAAAAAAAA\r\n", outstring)) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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else {
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chnWrite(&SD0, (const uint8_t *)succeed_string, strlen(succeed_string));
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}
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/* Test 4 - use DMA engine to execute a word-wise memory-to-memory copy,
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* then call a callback. */
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chnWrite(&SD0, (const uint8_t *)test_4_msg, strlen(test_4_msg));
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strcpy(instring, "After DMA test \r\n");
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strcpy(outstring, "Before DMA test \r\n");
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cb_arg = 1;
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if (strcmp("Before DMA test \r\n", outstring) || (cb_arg != 1)) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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request = &test_4_req;
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chSysLock();
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dmaRequestS(request, TIME_INFINITE);
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chSysUnlock();
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if (strcmp("After DMA test \r\n", outstring) || cb_arg) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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else {
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chnWrite(&SD0, (const uint8_t *)succeed_string, strlen(succeed_string));
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}
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/* Test 5 - use exclusive DMA channel 0 to execute a word-wise
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* memory-to-memory copy. */
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chnWrite(&SD0, (const uint8_t *)test_5_msg, strlen(test_5_msg));
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strcpy(instring, "After DMA test \r\n");
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strcpy(outstring, "Before DMA test \r\n");
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if (strcmp("Before DMA test \r\n", outstring)) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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request = &test_5_req;
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chSysLock();
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dmaAcquireI(&ch, 0);
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chSysUnlock();
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dmaTransfer(&ch, request);
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if (strcmp("After DMA test \r\n", outstring)) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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else {
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chnWrite(&SD0, (const uint8_t *)succeed_string, strlen(succeed_string));
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}
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/* Test 6 - Attempt to claim DMA channel 0, fail, release it, attempt to
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* claim it again */
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chnWrite(&SD0, (const uint8_t *)test_6_msg, strlen(test_6_msg));
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chSysLock();
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result = dmaAcquireI(&ch, 0);
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chSysUnlock();
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if (!result) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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dmaRelease(&ch);
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chSysLock();
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result = dmaAcquireI(&ch, 0);
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chSysUnlock();
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if (result) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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else {
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chnWrite(&SD0, (const uint8_t *)succeed_string, strlen(succeed_string));
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}
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dmaRelease(&ch);
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/* Test 7 - use exclusive DMA channel 1 to execute a word-wise
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* memory-to-memory copy. */
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chnWrite(&SD0, (const uint8_t *)test_7_msg, strlen(test_7_msg));
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strcpy(instring, "After DMA test \r\n");
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strcpy(outstring, "Before DMA test \r\n");
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if (strcmp("Before DMA test \r\n", outstring)) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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request = &test_5_req;
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chSysLock();
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dmaAcquireI(&ch, 1);
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chSysUnlock();
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dmaTransfer(&ch, request);
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if (strcmp("After DMA test \r\n", outstring)) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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else {
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chnWrite(&SD0, (const uint8_t *)succeed_string, strlen(succeed_string));
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}
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dmaRelease(&ch);
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/* Test 8 - Claim all 3 DMA channels, attempt dmaRequest, fail */
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chnWrite(&SD0, (const uint8_t *)test_8_msg, strlen(test_8_msg));
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chSysLock();
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result = dmaAcquireI(&ch, 0);
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chSysUnlock();
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if (result) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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chSysLock();
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result = dmaAcquireI(&ch1, 1);
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chSysUnlock();
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if (result) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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chSysLock();
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result = dmaAcquireI(&ch2, 2);
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chSysUnlock();
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if (result) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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chSysLock();
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result_i = dmaRequestS(request, TIME_IMMEDIATE);
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chSysUnlock();
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if (result_i > 0) {
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chnWrite(&SD0, (const uint8_t *)fail_string, strlen(fail_string));
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}
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else {
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chnWrite(&SD0, (const uint8_t *)succeed_string, strlen(succeed_string));
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}
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dmaRelease(&ch);
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dmaRelease(&ch1);
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dmaRelease(&ch2);
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}
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}
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/*
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* Threads static table, one entry per thread. The number of entries must
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* match NIL_CFG_NUM_THREADS.
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*/
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THD_TABLE_BEGIN
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THD_TABLE_ENTRY(waThread1, "dma_test", Thread1, NULL)
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THD_TABLE_END
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/*
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* Application entry point.
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*/
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int main(void) {
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/*
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* System initializations.
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* - HAL initialization, this also initializes the configured device drivers
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* and performs the board-specific initializations.
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* - Kernel initialization, the main() function becomes a thread and the
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* RTOS is active.
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*/
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WDTCTL = WDTPW | WDTHOLD;
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halInit();
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chSysInit();
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dmaInit();
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/* This is now the idle thread loop, you may perform here a low priority
|
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|
task but you must never try to sleep or wait in this loop. Note that
|
||
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|
this tasks runs at the lowest priority level so any instruction added
|
||
|
|
here will be executed after all other tasks have been started.*/
|
||
|
|
while (true) {
|
||
|
|
}
|
||
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|
}
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