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flash_ops: fix spi_flash_read with source buffer not from internal memory and size < 16

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Closes https://github.com/espressif/esp-idf/issues/4010
This commit is contained in:
Ajita Chavan 2019-10-19 15:01:46 +08:00 committed by Mahavir Jain
parent 2bcb02795e
commit 622842a983
2 changed files with 44 additions and 1 deletions
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10
components/spi_flash/flash_ops.c
View File

@ -522,7 +522,17 @@ esp_err_t IRAM_ATTR spi_flash_read(size_t src, void *dstv, size_t size)
goto out;
}
COUNTER_ADD_BYTES(read, read_size);
#ifdef ESP_PLATFORM
if (esp_ptr_external_ram(dstv)) {
spi_flash_guard_end();
memcpy(dstv, ((uint8_t *) t) + left_off, size);
spi_flash_guard_start();
} else {
memcpy(dstv, ((uint8_t *) t) + left_off, size);
}
#else
memcpy(dstv, ((uint8_t *) t) + left_off, size);
#endif
goto out;
}
uint8_t *dstc = (uint8_t *) dstv;

35
components/spi_flash/test/test_read_write.c
View File

@ -29,6 +29,7 @@
#include "soc/timer_group_reg.h"
#include "esp_heap_caps.h"
#define MIN_BLOCK_SIZE 12
/* Base offset in flash for tests. */
static size_t start;
@ -265,4 +266,36 @@ TEST_CASE("spi_flash_write can write from external RAM buffer", "[spi_flash]")
free(buf_int);
}
#endif // CONFIG_SPIRAM_SUPPORT
TEST_CASE("spi_flash_read less than 16 bytes into buffer in external RAM", "[spi_flash]")
{
uint8_t *buf_ext_8 = (uint8_t *) heap_caps_malloc(MIN_BLOCK_SIZE, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
TEST_ASSERT_NOT_NULL(buf_ext_8);
uint8_t *buf_int_8 = (uint8_t *) heap_caps_malloc(MIN_BLOCK_SIZE, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
TEST_ASSERT_NOT_NULL(buf_int_8);
uint8_t data_8[MIN_BLOCK_SIZE];
for (int i = 0; i < MIN_BLOCK_SIZE; i++) {
data_8[i] = i;
}
const esp_partition_t *part = get_test_data_partition();
TEST_ESP_OK(spi_flash_erase_range(part->address, SPI_FLASH_SEC_SIZE));
TEST_ESP_OK(spi_flash_write(part->address, data_8, MIN_BLOCK_SIZE));
TEST_ESP_OK(spi_flash_read(part->address, buf_ext_8, MIN_BLOCK_SIZE));
TEST_ESP_OK(spi_flash_read(part->address, buf_int_8, MIN_BLOCK_SIZE));
TEST_ASSERT_EQUAL(0, memcmp(buf_ext_8, data_8, MIN_BLOCK_SIZE));
TEST_ASSERT_EQUAL(0, memcmp(buf_int_8, data_8, MIN_BLOCK_SIZE));
if (buf_ext_8) {
free(buf_ext_8);
buf_ext_8 = NULL;
}
if (buf_int_8) {
free(buf_int_8);
buf_int_8 = NULL;
}
}
#endif // CONFIG_ESP32_SPIRAM_SUPPORT