196 lines
6.8 KiB
C
196 lines
6.8 KiB
C
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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#include "spi_flash_defs.h"
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#include "memspi_host_driver.h"
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#include "string.h"
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#include "esp_log.h"
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#include "cache_utils.h"
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#include "esp_flash_partitions.h"
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static const char TAG[] = "memspi";
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static const spi_flash_host_driver_t esp_flash_default_host = ESP_FLASH_DEFAULT_HOST_DRIVER();
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#ifdef CONFIG_IDF_TARGET_ESP32S2BETA
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extern void spi_flash_hal_gpspi_poll_cmd_done(spi_flash_host_driver_t *driver);
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extern esp_err_t spi_flash_hal_gpspi_device_config(spi_flash_host_driver_t *driver);
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esp_err_t spi_flash_hal_gpspi_configure_host_io_mode(
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spi_flash_host_driver_t *host,
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uint32_t command,
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uint32_t addr_bitlen,
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int dummy_cyclelen_base,
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esp_flash_io_mode_t io_mode);
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extern esp_err_t spi_flash_hal_gpspi_common_command(spi_flash_host_driver_t *chip_drv, spi_flash_trans_t *trans);
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extern esp_err_t spi_flash_hal_gpspi_read(spi_flash_host_driver_t *chip_drv, void *buffer, uint32_t address, uint32_t read_len);
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extern bool spi_flash_hal_gpspi_host_idle(spi_flash_host_driver_t *chip_drv);
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extern bool spi_flash_hal_gpspi_supports_direct_write(spi_flash_host_driver_t *driver, const void *p);
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extern bool spi_flash_hal_gpspi_supports_direct_read(spi_flash_host_driver_t *driver, const void *p);
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/** Default configuration for GPSPI */
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static const spi_flash_host_driver_t esp_flash_gpspi_host = {
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.dev_config = spi_flash_hal_gpspi_device_config,
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.common_command = spi_flash_hal_gpspi_common_command,
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.read_id = memspi_host_read_id_hs,
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.erase_chip = memspi_host_erase_chip,
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.erase_sector = memspi_host_erase_sector,
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.erase_block = memspi_host_erase_block,
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.read_status = memspi_host_read_status_hs,
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.set_write_protect = memspi_host_set_write_protect,
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.supports_direct_write = spi_flash_hal_gpspi_supports_direct_write,
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.supports_direct_read = spi_flash_hal_gpspi_supports_direct_read,
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.program_page = memspi_host_program_page,
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.max_write_bytes = SPI_FLASH_HAL_MAX_WRITE_BYTES,
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.read = spi_flash_hal_gpspi_read,
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.max_read_bytes = SPI_FLASH_HAL_MAX_READ_BYTES,
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.host_idle = spi_flash_hal_gpspi_host_idle,
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.configure_host_io_mode = spi_flash_hal_gpspi_configure_host_io_mode,
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.poll_cmd_done = spi_flash_hal_gpspi_poll_cmd_done,
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.flush_cache = NULL,
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};
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#endif
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esp_err_t memspi_host_init_pointers(spi_flash_host_driver_t *host, memspi_host_data_t *data, const memspi_host_config_t *cfg)
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{
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#ifdef CONFIG_IDF_TARGET_ESP32
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memcpy(host, &esp_flash_default_host, sizeof(spi_flash_host_driver_t));
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#elif CONFIG_IDF_TARGET_ESP32S2BETA
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if (cfg->host_id == SPI_HOST)
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memcpy(host, &esp_flash_default_host, sizeof(spi_flash_host_driver_t));
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else {
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memcpy(host, &esp_flash_gpspi_host, sizeof(spi_flash_host_driver_t));
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}
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#endif
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esp_err_t err = spi_flash_hal_init(data, cfg);
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if (err != ESP_OK) {
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return err;
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}
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host->driver_data = data;
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//some functions are not required if not SPI1
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if ((void*)data->spi != (void*)spi_flash_ll_get_hw(SPI_HOST)) {
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host->flush_cache = NULL;
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}
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return ESP_OK;
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}
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esp_err_t memspi_host_read_id_hs(spi_flash_host_driver_t *host, uint32_t *id)
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{
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uint32_t id_buf = 0;
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spi_flash_trans_t t = {
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.command = CMD_RDID,
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.miso_len = 3,
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.miso_data = ((uint8_t*) &id_buf),
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};
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host->common_command(host, &t);
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uint32_t raw_flash_id = id_buf;
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ESP_EARLY_LOGV(TAG, "raw_chip_id: %X\n", raw_flash_id);
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if (raw_flash_id == 0xFFFFFF || raw_flash_id == 0) {
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ESP_EARLY_LOGE(TAG, "no response\n");
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return ESP_ERR_FLASH_NO_RESPONSE;
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}
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// Byte swap the flash id as it's usually written the other way around
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uint8_t mfg_id = raw_flash_id & 0xFF;
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uint16_t flash_id = (raw_flash_id >> 16) | (raw_flash_id & 0xFF00);
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*id = ((uint32_t)mfg_id << 16) | flash_id;
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ESP_EARLY_LOGV(TAG, "chip_id: %X\n", *id);
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return ESP_OK;
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}
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esp_err_t memspi_host_read_status_hs(spi_flash_host_driver_t *driver, uint8_t *out_sr)
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{
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//NOTE: we do have a read id function, however it doesn't work in high freq
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uint32_t stat_buf = 0;
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spi_flash_trans_t t = {
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.command = CMD_RDSR,
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.miso_data = ((uint8_t*) &stat_buf),
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.miso_len = 1
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};
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esp_err_t err = driver->common_command(driver, &t);
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if (err != ESP_OK) {
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return err;
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}
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*out_sr = stat_buf;
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return ESP_OK;
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}
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esp_err_t memspi_host_flush_cache(spi_flash_host_driver_t* driver, uint32_t addr, uint32_t size)
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{
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if ((void*)((memspi_host_data_t*)(driver->driver_data))->spi == (void*) spi_flash_ll_get_hw(SPI_HOST)) {
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spi_flash_check_and_flush_cache(addr, size);
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}
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return ESP_OK;
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}
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void memspi_host_erase_chip(spi_flash_host_driver_t *chip_drv)
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{
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spi_flash_trans_t t = { 0 };
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t.command = CMD_CHIP_ERASE;
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chip_drv->common_command(chip_drv, &t);
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}
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void memspi_host_erase_sector(spi_flash_host_driver_t *chip_drv, uint32_t start_address)
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{
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spi_flash_trans_t t = {
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.command = CMD_SECTOR_ERASE,
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.address_bitlen = 24,
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.address = start_address
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};
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chip_drv->common_command(chip_drv, &t);
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}
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void memspi_host_erase_block(spi_flash_host_driver_t *chip_drv, uint32_t start_address)
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{
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spi_flash_trans_t t = {
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.command = CMD_LARGE_BLOCK_ERASE,
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.address_bitlen = 24,
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.address = start_address,
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};
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chip_drv->common_command(chip_drv, &t);
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}
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void memspi_host_program_page(spi_flash_host_driver_t *chip_drv, const void *buffer, uint32_t address, uint32_t length)
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{
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spi_flash_trans_t t = {
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.command = CMD_PROGRAM_PAGE,
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.address_bitlen = 24,
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.address = address,
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.mosi_len = length,
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.mosi_data = buffer
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};
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chip_drv->common_command(chip_drv, &t);
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}
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esp_err_t memspi_host_read(spi_flash_host_driver_t *chip_drv, void *buffer, uint32_t address, uint32_t read_len)
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{
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spi_flash_trans_t t = {
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.address_bitlen = 24,
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.address = address,
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.miso_len = read_len,
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.miso_data = buffer
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};
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chip_drv->common_command(chip_drv, &t);
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return ESP_OK;
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}
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esp_err_t memspi_host_set_write_protect(spi_flash_host_driver_t *chip_drv, bool wp)
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{
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spi_flash_trans_t t = {
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.command = wp ? CMD_WRDI : CMD_WREN
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};
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chip_drv->common_command(chip_drv, &t);
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return ESP_OK;
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}
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