Crash_Override/OVMS3-idf
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity
OVMS3-idf/components/driver/test/test_spi_master.c
michael 99769f0b00 fix(spi_master): fix the bug that VSPI no respond when host changed 
from HSPI to VSPI, and vice versa.

fix the SPI control bits written wrong in the headers.

TW#12123, Github#477
2017-07-21 14:50:17 +08:00

322 lines
8.6 KiB
C
Raw Blame History

/*
Tests for the spi_master device driver
*/
#include <esp_types.h>
#include <stdio.h>
#include <stdlib.h>
#include <malloc.h>
#include <string.h>
#include "rom/ets_sys.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
#include "freertos/queue.h"
#include "freertos/xtensa_api.h"
#include "unity.h"
#include "driver/spi_master.h"
#include "soc/dport_reg.h"
#include "soc/spi_reg.h"
#include "soc/spi_struct.h"
#include "esp_heap_caps.h"
static void check_spi_pre_n_for(int clk, int pre, int n)
{
esp_err_t ret;
spi_device_handle_t handle;
spi_device_interface_config_t devcfg={
.command_bits=0,
.address_bits=0,
.dummy_bits=0,
.clock_speed_hz=clk,
.duty_cycle_pos=128,
.mode=0,
.spics_io_num=21,
.queue_size=3
};
char sendbuf[16]="";
spi_transaction_t t;
memset(&t, 0, sizeof(t));
ret=spi_bus_add_device(HSPI_HOST, &devcfg, &handle);
TEST_ASSERT(ret==ESP_OK);
t.length=16*8;
t.tx_buffer=sendbuf;
ret=spi_device_transmit(handle, &t);
printf("Checking clk rate %dHz. expect pre %d n %d, got pre %d n %d\n", clk, pre, n, SPI2.clock.clkdiv_pre+1, SPI2.clock.clkcnt_n+1);
TEST_ASSERT(SPI2.clock.clkcnt_n+1==n);
TEST_ASSERT(SPI2.clock.clkdiv_pre+1==pre);
ret=spi_bus_remove_device(handle);
TEST_ASSERT(ret==ESP_OK);
}
TEST_CASE("SPI Master clockdiv calculation routines", "[spi]")
{
spi_bus_config_t buscfg={
.mosi_io_num=4,
.miso_io_num=26,
.sclk_io_num=25,
.quadwp_io_num=-1,
.quadhd_io_num=-1
};
esp_err_t ret;
ret=spi_bus_initialize(HSPI_HOST, &buscfg, 1);
TEST_ASSERT(ret==ESP_OK);
check_spi_pre_n_for(26000000, 1, 3);
check_spi_pre_n_for(20000000, 1, 4);
check_spi_pre_n_for(8000000, 1, 10);
check_spi_pre_n_for(800000, 2, 50);
check_spi_pre_n_for(100000, 16, 50);
check_spi_pre_n_for(333333, 4, 60);
check_spi_pre_n_for(900000, 2, 44);
check_spi_pre_n_for(1, 8192, 64); //Actually should generate the minimum clock speed, 152Hz
check_spi_pre_n_for(26000000, 1, 3);
ret=spi_bus_free(HSPI_HOST);
TEST_ASSERT(ret==ESP_OK);
}
static spi_device_handle_t setup_spi_bus(int clkspeed, bool dma) {
spi_bus_config_t buscfg={
.mosi_io_num=4,
.miso_io_num=26,
.sclk_io_num=25,
.quadwp_io_num=-1,
.quadhd_io_num=-1,
.max_transfer_sz=4096*3
};
spi_device_interface_config_t devcfg={
.command_bits=0,
.address_bits=0,
.dummy_bits=0,
.clock_speed_hz=clkspeed,
.duty_cycle_pos=128,
.mode=0,
.spics_io_num=21,
.queue_size=3,
};
esp_err_t ret;
spi_device_handle_t handle;
printf("THIS TEST NEEDS A JUMPER BETWEEN IO4 AND IO26\n");
ret=spi_bus_initialize(HSPI_HOST, &buscfg, dma?1:0);
TEST_ASSERT(ret==ESP_OK);
ret=spi_bus_add_device(HSPI_HOST, &devcfg, &handle);
TEST_ASSERT(ret==ESP_OK);
printf("Bus/dev inited.\n");
return handle;
}
static void spi_test(spi_device_handle_t handle, int num_bytes) {
esp_err_t ret;
int x;
srand(num_bytes);
char *sendbuf=heap_caps_malloc(num_bytes, MALLOC_CAP_DMA);
char *recvbuf=heap_caps_malloc(num_bytes, MALLOC_CAP_DMA);
for (x=0; x<num_bytes; x++) {
sendbuf[x]=rand()&0xff;
recvbuf[x]=0x55;
}
spi_transaction_t t;
memset(&t, 0, sizeof(t));
t.length=num_bytes*8;
t.tx_buffer=sendbuf;
t.rx_buffer=recvbuf;
t.address=0xA00000000000000FL;
t.command=0x55;
printf("Transmitting %d bytes...\n", num_bytes);
ret=spi_device_transmit(handle, &t);
TEST_ASSERT(ret==ESP_OK);
srand(num_bytes);
for (x=0; x<num_bytes; x++) {
if (sendbuf[x]!=(rand()&0xff)) {
printf("Huh? Sendbuf corrupted at byte %d\n", x);
TEST_ASSERT(0);
}
if (sendbuf[x]!=recvbuf[x]) break;
}
if (x!=num_bytes) {
int from=x-16;
if (from<0) from=0;
printf("Error at %d! Sent vs recved: (starting from %d)\n" , x, from);
for (int i=0; i<32; i++) {
if (i+from<num_bytes) printf("%02X ", sendbuf[from+i]);
}
printf("\n");
for (int i=0; i<32; i++) {
if (i+from<num_bytes) printf("%02X ", recvbuf[from+i]);
}
printf("\n");
// TEST_ASSERT(0);
}
printf("Success!\n");
free(sendbuf);
free(recvbuf);
}
static void destroy_spi_bus(spi_device_handle_t handle) {
esp_err_t ret;
ret=spi_bus_remove_device(handle);
TEST_ASSERT(ret==ESP_OK);
ret=spi_bus_free(HSPI_HOST);
TEST_ASSERT(ret==ESP_OK);
}
#define TEST_LEN 111
TEST_CASE("SPI Master test", "[spi][ignore]")
{
printf("Testing bus at 80KHz\n");
spi_device_handle_t handle=setup_spi_bus(80000, true);
spi_test(handle, 16); //small
spi_test(handle, 21); //small, unaligned
spi_test(handle, 36); //aligned
spi_test(handle, 128); //aligned
spi_test(handle, 129); //unaligned
spi_test(handle, 4096-2); //multiple descs, edge case 1
spi_test(handle, 4096-1); //multiple descs, edge case 2
spi_test(handle, 4096*3); //multiple descs
destroy_spi_bus(handle);
printf("Testing bus at 80KHz, non-DMA\n");
handle=setup_spi_bus(80000, false);
spi_test(handle, 4); //aligned
spi_test(handle, 16); //small
spi_test(handle, 21); //small, unaligned
destroy_spi_bus(handle);
printf("Testing bus at 26MHz\n");
handle=setup_spi_bus(20000000, true);
spi_test(handle, 128); //DMA, aligned
spi_test(handle, 4096*3); //DMA, multiple descs
destroy_spi_bus(handle);
printf("Testing bus at 900KHz\n");
handle=setup_spi_bus(9000000, true);
spi_test(handle, 128); //DMA, aligned
spi_test(handle, 4096*3); //DMA, multiple descs
destroy_spi_bus(handle);
}
TEST_CASE("SPI Master test, interaction of multiple devs", "[spi][ignore]") {
esp_err_t ret;
spi_device_interface_config_t devcfg={
.command_bits=0,
.address_bits=0,
.dummy_bits=0,
.clock_speed_hz=1000000,
.duty_cycle_pos=128,
.mode=0,
.spics_io_num=23,
.queue_size=3,
};
spi_device_handle_t handle1=setup_spi_bus(80000, true);
spi_device_handle_t handle2;
spi_bus_add_device(HSPI_HOST, &devcfg, &handle2);
printf("Sending to dev 1\n");
spi_test(handle1, 7);
printf("Sending to dev 1\n");
spi_test(handle1, 15);
printf("Sending to dev 2\n");
spi_test(handle2, 15);
printf("Sending to dev 1\n");
spi_test(handle1, 32);
printf("Sending to dev 2\n");
spi_test(handle2, 32);
printf("Sending to dev 1\n");
spi_test(handle1, 63);
printf("Sending to dev 2\n");
spi_test(handle2, 63);
printf("Sending to dev 1\n");
spi_test(handle1, 5000);
printf("Sending to dev 2\n");
spi_test(handle2, 5000);
ret=spi_bus_remove_device(handle2);
TEST_ASSERT(ret==ESP_OK);
destroy_spi_bus(handle1);
}
TEST_CASE("SPI Master no response when switch from host1 (HSPI) to host2 (VSPI)", "[spi]")
{
//spi config
spi_bus_config_t bus_config;
spi_device_interface_config_t device_config;
spi_device_handle_t spi;
spi_host_device_t host;
int dma = 1;
memset(&bus_config, 0, sizeof(spi_bus_config_t));
memset(&device_config, 0, sizeof(spi_device_interface_config_t));
bus_config.miso_io_num = -1;
bus_config.mosi_io_num = 26;
bus_config.sclk_io_num = 25;
bus_config.quadwp_io_num = -1;
bus_config.quadhd_io_num = -1;
device_config.clock_speed_hz = 50000;
device_config.mode = 0;
device_config.spics_io_num = -1;
device_config.queue_size = 1;
device_config.flags = SPI_DEVICE_TXBIT_LSBFIRST | SPI_DEVICE_RXBIT_LSBFIRST;
struct spi_transaction_t transaction = {
.flags = SPI_TRANS_USE_TXDATA | SPI_TRANS_USE_RXDATA,
.length = 16,
.tx_buffer = NULL,
.rx_buffer = NULL,
.tx_data = {0x04, 0x00}
};
//initialize for first host
host = 1;
assert(spi_bus_initialize(host, &bus_config, dma) == ESP_OK);
assert(spi_bus_add_device(host, &device_config, &spi) == ESP_OK);
printf("before first xmit\n");
assert(spi_device_transmit(spi, &transaction) == ESP_OK);
printf("after first xmit\n");
assert(spi_bus_remove_device(spi) == ESP_OK);
assert(spi_bus_free(host) == ESP_OK);
//for second host and failed before
host = 2;
assert(spi_bus_initialize(host, &bus_config, dma) == ESP_OK);
assert(spi_bus_add_device(host, &device_config, &spi) == ESP_OK);
printf("before second xmit\n");
// the original version (bit mis-written) stucks here.
assert(spi_device_transmit(spi, &transaction) == ESP_OK);
// test case success when see this.
printf("after second xmit\n");
}
Reference in a new issue View git blame Copy permalink