117 lines
3.8 KiB
C
117 lines
3.8 KiB
C
/*
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* Example of using SDIO driver
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*
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* Part of esp-open-rtos
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* Copyright (C) 2016 Ruslan V. Uss <unclerus@gmail.com>
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* BSD Licensed as described in the file LICENSE
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*/
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#include <esp/uart.h>
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#include <espressif/esp_common.h>
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#include <stdio.h>
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#include <esp/spi.h>
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#include <sdio/sdio.h>
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#include <string.h>
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#include <esp/hwrand.h>
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// Blink while IO :)
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#define CS_GPIO_PIN 2
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// Set SPI frequency to 20MHz
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#define SDIO_SPI_FREQ_DIV SPI_FREQ_DIV_20M
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static const char *errors[] = {
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[SDIO_ERR_NONE] = NULL,
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[SDIO_ERR_TIMEOUT] = "Timeout",
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[SDIO_ERR_UNSUPPORTED] = "Unsupported",
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[SDIO_ERR_IO] = "General I/O error",
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[SDIO_ERR_CRC] = "CRC check failed"
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};
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static const char *types[] = {
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[SDIO_TYPE_UNKNOWN] = "Unknown",
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[SDIO_TYPE_MMC] = "MMC",
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[SDIO_TYPE_SD1] = "SD v1.x",
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[SDIO_TYPE_SD2] = "SD v2.x",
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[SDIO_TYPE_SDHC] = "SDHC",
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};
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static void dump_line(const uint8_t *data)
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{
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for (uint8_t i = 0; i < 16; i ++)
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printf(" %02x", data[i]);
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printf("\n");
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}
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static uint8_t buffer[SDIO_BLOCK_SIZE];
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#define TEST_COUNT 1000
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inline static void test_read(sdio_card_t *card)
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{
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printf("Simple random access test speed: ");
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uint32_t start = sdk_system_get_time();
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//sdk_system_update_cpu_freq(160);
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for (uint32_t i = 0; i < TEST_COUNT; i ++)
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{
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printf("%08u / %08u\x08\x08\x08\x08\x08\x08\x08\x08\x08\x08\x08\x08\x08\x08\x08\x08\x08\x08\x08", i + 1, TEST_COUNT);
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if (sdio_read_sectors(card, hwrand() % card->sectors, buffer, 1) != SDIO_ERR_NONE)
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{
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printf("Error: %d (%s)\n", card->error, errors[card->error]);
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return;
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}
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}
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uint32_t time = sdk_system_get_time() - start;
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float speed = (float)TEST_COUNT / time * 1000000;
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float stime = (time / 1000000.0) / TEST_COUNT;
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uint32_t bs = (uint32_t)speed * 512;
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printf("\nDone. Time: %u ms, speed: %.4f sectors/s, sector in %.4f s, %u bytes/s \n", time, speed, stime, bs);
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}
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inline static void dump_card(sdio_card_t *card)
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{
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char product_name[6];
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memcpy(product_name, card->cid.bits.product_name, 5);
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product_name[5] = 0;
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printf("-------------------------------------------\n");
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printf(" SD/MMC card info\n");
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printf("-------------------------------------------\n");
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printf("%20s : %s\n", "Card type", types[card->type]);
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printf("%20s : %s\n", "CRC enabled", card->crc_enabled ? "yes" : "no");
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printf("%20s : %d\n", "512 byte sectors", card->sectors);
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printf("%20s : 0x%02x\n", "Manufacturer ID", card->cid.bits.manufacturer_id);
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printf("%20s : %c%c\n", "OEM ID", card->cid.bits.oem_id[0], card->cid.bits.oem_id[1]);
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printf("%20s : %s\n", "Product name", product_name);
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printf("%20s : %d.%d\n", "Product revision", card->cid.bits.product_rev_major, card->cid.bits.product_rev_minor);
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printf("%20s : 0x%08x\n", "Serial #", card->cid.bits.product_serial);
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printf("%20s : %02d / %04d\n", "Manufacturing date", card->cid.bits.date_month, card->cid.bits.date_year_h * 10 + card->cid.bits.date_year_l + 2000);
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printf("%20s : 0x%08x\n", "OCR", card->ocr.data);
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printf("%20s :", "CID");
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dump_line(card->cid.data);
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printf("%20s :", "CSD");
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dump_line(card->csd.data);
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test_read(card);
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}
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void user_init(void)
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{
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uart_set_baud(0, 115200);
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printf("SDK version:%s\n\n", sdk_system_get_sdk_version());
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while (true)
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{
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printf("\nInitializing card...\n");
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do
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{
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sdio_card_t card;
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if (sdio_init(&card, CS_GPIO_PIN, SDIO_SPI_FREQ_DIV))
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{
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printf("Error: %d (%s)\n", card.error, errors[card.error]);
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break;
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}
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dump_card(&card);
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} while (0);
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for (size_t i = 0; i < 1000; i ++)
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sdk_os_delay_us(1000);
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}
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}
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