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esp_flash: fix the write performance regression

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Also changed internal delay unit into microsecond.
This commit is contained in:
Michael (XIAO Xufeng) 2020-05-08 17:35:22 +08:00
parent ee7b443d28
commit ffc46954ae
5 changed files with 53 additions and 43 deletions
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4
components/spi_flash/include/esp_flash.h
View file

@ -48,8 +48,8 @@ typedef struct {
/** Called before any erase/write operations to check whether the region is limited by the OS */
esp_err_t (*region_protected)(void* arg, size_t start_addr, size_t size);
/** Delay for at least 'ms' milliseconds. Called in between 'start' and 'end'. */
esp_err_t (*delay_ms)(void *arg, unsigned ms);
/** Delay for at least 'us' microseconds. Called in between 'start' and 'end'. */
esp_err_t (*delay_us)(void *arg, unsigned us);
} esp_flash_os_functions_t;
/** @brief Structure to describe a SPI flash chip connected to the system.

8
components/spi_flash/include/spi_flash_chip_generic.h
View file

@ -193,14 +193,14 @@ esp_err_t spi_flash_chip_generic_get_write_protect(esp_flash_t *chip, bool *out_
* progress bit) to be cleared.
*
* @param chip Pointer to SPI flash chip to use. If NULL, esp_flash_default_chip is substituted.
* @param timeout_ms Time to wait before timeout, in ms.
* @param timeout_us Time to wait before timeout, in us.
*
* @return
* - ESP_OK if success
* - ESP_ERR_TIMEOUT if not idle before timeout
* - or other error passed from the ``wait_idle`` or ``read_status`` function of host driver
*/
esp_err_t spi_flash_chip_generic_wait_idle(esp_flash_t *chip, uint32_t timeout_ms);
esp_err_t spi_flash_chip_generic_wait_idle(esp_flash_t *chip, uint32_t timeout_us);
/**
* @brief Set the specified SPI read mode according to the data in the chip
@ -247,7 +247,7 @@ extern const spi_flash_chip_t esp_flash_chip_generic;
* spi_flash_chip_generic_wait_idle() and may be useful when implementing
* alternative drivers.
*
* timeout_ms will be decremented if the function needs to wait until the host hardware is idle.
* timeout_us will be decremented if the function needs to wait until the host hardware is idle.
*
* @param chip Pointer to SPI flash chip to use. If NULL, esp_flash_default_chip is substituted.
*
@ -256,7 +256,7 @@ extern const spi_flash_chip_t esp_flash_chip_generic;
* - ESP_ERR_TIMEOUT if not idle before timeout
* - or other error passed from the ``set_write_protect`` or ``common_command`` function of host driver
*/
esp_err_t spi_flash_generic_wait_host_idle(esp_flash_t *chip, uint32_t *timeout_ms);
esp_err_t spi_flash_generic_wait_host_idle(esp_flash_t *chip, uint32_t *timeout_us);
/// Function pointer type for reading status register with QE bit.
typedef esp_err_t (*esp_flash_rdsr_func_t)(esp_flash_t* chip, uint32_t* out_sr);

70
components/spi_flash/spi_flash_chip_generic.c
View file

@ -20,12 +20,15 @@
static const char TAG[] = "chip_generic";
#define SPI_FLASH_GENERIC_CHIP_ERASE_TIMEOUT 4000
#define SPI_FLASH_GENERIC_SECTOR_ERASE_TIMEOUT 500
#define SPI_FLASH_GENERIC_BLOCK_ERASE_TIMEOUT 1000
#define SPI_FLASH_DEFAULT_IDLE_TIMEOUT_MS 200
#define SPI_FLASH_GENERIC_CHIP_ERASE_TIMEOUT_MS 4000
#define SPI_FLASH_GENERIC_SECTOR_ERASE_TIMEOUT_MS 500 //according to GD25Q127 + 100ms
#define SPI_FLASH_GENERIC_BLOCK_ERASE_TIMEOUT_MS 1300 //according to GD25Q127 + 100ms
#define SPI_FLASH_GENERIC_PAGE_PROGRAM_TIMEOUT_MS 500
#define HOST_DELAY_INTERVAL_US 1
#define CHIP_WAIT_IDLE_INTERVAL_US 20
#define DEFAULT_IDLE_TIMEOUT 200
#define DEFAULT_PAGE_PROGRAM_TIMEOUT 500
esp_err_t spi_flash_chip_generic_probe(esp_flash_t *chip, uint32_t flash_id)
{
@ -54,7 +57,7 @@ esp_err_t spi_flash_chip_generic_reset(esp_flash_t *chip)
return err;
}
err = chip->chip_drv->wait_idle(chip, DEFAULT_IDLE_TIMEOUT);
err = chip->chip_drv->wait_idle(chip, SPI_FLASH_DEFAULT_IDLE_TIMEOUT_MS * 1000);
return err;
}
@ -80,7 +83,7 @@ esp_err_t spi_flash_chip_generic_erase_chip(esp_flash_t *chip)
err = chip->chip_drv->set_chip_write_protect(chip, false);
if (err == ESP_OK) {
err = chip->chip_drv->wait_idle(chip, DEFAULT_IDLE_TIMEOUT);
err = chip->chip_drv->wait_idle(chip, SPI_FLASH_DEFAULT_IDLE_TIMEOUT_MS * 1000);
}
if (err == ESP_OK) {
chip->host->erase_chip(chip->host);
@ -91,7 +94,7 @@ esp_err_t spi_flash_chip_generic_erase_chip(esp_flash_t *chip)
return err;
}
}
err = chip->chip_drv->wait_idle(chip, SPI_FLASH_GENERIC_CHIP_ERASE_TIMEOUT);
err = chip->chip_drv->wait_idle(chip, SPI_FLASH_GENERIC_CHIP_ERASE_TIMEOUT_MS * 1000);
}
return err;
}
@ -100,7 +103,7 @@ esp_err_t spi_flash_chip_generic_erase_sector(esp_flash_t *chip, uint32_t start_
{
esp_err_t err = chip->chip_drv->set_chip_write_protect(chip, false);
if (err == ESP_OK) {
err = chip->chip_drv->wait_idle(chip, DEFAULT_IDLE_TIMEOUT);
err = chip->chip_drv->wait_idle(chip, SPI_FLASH_DEFAULT_IDLE_TIMEOUT_MS * 1000);
}
if (err == ESP_OK) {
chip->host->erase_sector(chip->host, start_address);
@ -111,7 +114,7 @@ esp_err_t spi_flash_chip_generic_erase_sector(esp_flash_t *chip, uint32_t start_
return err;
}
}
err = chip->chip_drv->wait_idle(chip, SPI_FLASH_GENERIC_SECTOR_ERASE_TIMEOUT);
err = chip->chip_drv->wait_idle(chip, SPI_FLASH_GENERIC_SECTOR_ERASE_TIMEOUT_MS * 1000);
}
return err;
}
@ -120,7 +123,7 @@ esp_err_t spi_flash_chip_generic_erase_block(esp_flash_t *chip, uint32_t start_a
{
esp_err_t err = chip->chip_drv->set_chip_write_protect(chip, false);
if (err == ESP_OK) {
err = chip->chip_drv->wait_idle(chip, DEFAULT_IDLE_TIMEOUT);
err = chip->chip_drv->wait_idle(chip, SPI_FLASH_DEFAULT_IDLE_TIMEOUT_MS * 1000);
}
if (err == ESP_OK) {
chip->host->erase_block(chip->host, start_address);
@ -131,7 +134,7 @@ esp_err_t spi_flash_chip_generic_erase_block(esp_flash_t *chip, uint32_t start_a
return err;
}
}
err = chip->chip_drv->wait_idle(chip, SPI_FLASH_GENERIC_BLOCK_ERASE_TIMEOUT);
err = chip->chip_drv->wait_idle(chip, SPI_FLASH_GENERIC_BLOCK_ERASE_TIMEOUT_MS * 1000);
}
return err;
}
@ -158,13 +161,13 @@ esp_err_t spi_flash_chip_generic_page_program(esp_flash_t *chip, const void *buf
{
esp_err_t err;
err = chip->chip_drv->wait_idle(chip, DEFAULT_IDLE_TIMEOUT);
err = chip->chip_drv->wait_idle(chip, SPI_FLASH_DEFAULT_IDLE_TIMEOUT_MS * 1000);
if (err == ESP_OK) {
// Perform the actual Page Program command
chip->host->program_page(chip->host, buffer, address, length);
err = chip->chip_drv->wait_idle(chip, DEFAULT_PAGE_PROGRAM_TIMEOUT);
err = chip->chip_drv->wait_idle(chip, SPI_FLASH_GENERIC_PAGE_PROGRAM_TIMEOUT_MS * 1000);
}
return err;
}
@ -205,7 +208,7 @@ esp_err_t spi_flash_chip_generic_set_write_protect(esp_flash_t *chip, bool write
{
esp_err_t err = ESP_OK;
err = chip->chip_drv->wait_idle(chip, DEFAULT_IDLE_TIMEOUT);
err = chip->chip_drv->wait_idle(chip, SPI_FLASH_DEFAULT_IDLE_TIMEOUT_MS * 1000);
if (err == ESP_OK) {
chip->host->set_write_protect(chip->host, write_protect);
@ -234,25 +237,31 @@ esp_err_t spi_flash_chip_generic_get_write_protect(esp_flash_t *chip, bool *out_
return err;
}
esp_err_t spi_flash_generic_wait_host_idle(esp_flash_t *chip, uint32_t *timeout_ms)
esp_err_t spi_flash_generic_wait_host_idle(esp_flash_t *chip, uint32_t *timeout_us)
{
while (chip->host->host_idle(chip->host) && *timeout_ms > 0) {
if (*timeout_ms > 1) {
chip->os_func->delay_ms(chip->os_func_data, 1);
while (chip->host->host_idle(chip->host) && *timeout_us > 0) {
#if HOST_DELAY_INTERVAL_US > 0
if (*timeout_us > 1) {
int delay = MIN(HOST_DELAY_INTERVAL_US, *timeout_us);
chip->os_func->delay_us(chip->os_func_data, delay);
*timeout_us -= delay;
} else {
return ESP_ERR_TIMEOUT;
}
(*timeout_ms)--;
#endif
}
return (*timeout_ms > 0) ? ESP_OK : ESP_ERR_TIMEOUT;
return ESP_OK;
}
esp_err_t spi_flash_chip_generic_wait_idle(esp_flash_t *chip, uint32_t timeout_ms)
esp_err_t spi_flash_chip_generic_wait_idle(esp_flash_t *chip, uint32_t timeout_us)
{
timeout_ms++; // allow at least one pass before timeout, last one has no sleep cycle
timeout_us++; // allow at least one pass before timeout, last one has no sleep cycle
uint8_t status = 0;
while (timeout_ms > 0) {
const int interval = CHIP_WAIT_IDLE_INTERVAL_US;
while (timeout_us > 0) {
esp_err_t err = spi_flash_generic_wait_host_idle(chip, &timeout_ms);
esp_err_t err = spi_flash_generic_wait_host_idle(chip, & timeout_us);
if (err != ESP_OK) {
return err;
}
@ -264,13 +273,14 @@ esp_err_t spi_flash_chip_generic_wait_idle(esp_flash_t *chip, uint32_t timeout_m
if ((status & SR_WIP) == 0) {
break; // Write in progress is complete
}
if (timeout_ms > 1) {
chip->os_func->delay_ms(chip->os_func_data, 1);
if (timeout_us > 0 && interval > 0) {
int delay = MIN(interval, timeout_us);
chip->os_func->delay_us(chip->os_func_data, delay);
timeout_us -= delay;
}
timeout_ms--;
}
return (timeout_ms > 0) ? ESP_OK : ESP_ERR_TIMEOUT;
return (timeout_us > 0) ? ESP_OK : ESP_ERR_TIMEOUT;
}
esp_err_t spi_flash_chip_generic_config_host_io_mode(esp_flash_t *chip)
@ -490,7 +500,7 @@ esp_err_t spi_flash_common_set_io_mode(esp_flash_t *chip, esp_flash_wrsr_func_t
return ret;
}
ret = chip->chip_drv->wait_idle(chip, DEFAULT_IDLE_TIMEOUT);
ret = chip->chip_drv->wait_idle(chip, SPI_FLASH_DEFAULT_IDLE_TIMEOUT_MS * 1000);
if (ret != ESP_OK) {
return ret;
}

8
components/spi_flash/spi_flash_os_func_app.c
View file

@ -77,9 +77,9 @@ static esp_err_t spi23_end(void *arg)
return ESP_OK;
}
static IRAM_ATTR esp_err_t delay_ms(void *arg, unsigned ms)
static IRAM_ATTR esp_err_t delay_us(void *arg, unsigned us)
{
ets_delay_us(1000 * ms);
ets_delay_us(us);
return ESP_OK;
}
@ -115,14 +115,14 @@ static app_func_arg_t spi3_arg = {
const DRAM_ATTR esp_flash_os_functions_t esp_flash_spi1_default_os_functions = {
.start = spi1_start,
.end = spi1_end,
.delay_ms = delay_ms,
.delay_us = delay_us,
.region_protected = main_flash_region_protected,
};
const esp_flash_os_functions_t esp_flash_spi23_default_os_functions = {
.start = spi23_start,
.end = spi23_end,
.delay_ms = delay_ms,
.delay_us = delay_us,
};
esp_err_t esp_flash_init_os_functions(esp_flash_t *chip, int host_id)

6
components/spi_flash/spi_flash_os_func_noos.c
View file

@ -37,16 +37,16 @@ static IRAM_ATTR esp_err_t end(void *arg)
return ESP_OK;
}
static IRAM_ATTR esp_err_t delay_ms(void *arg, unsigned ms)
static IRAM_ATTR esp_err_t delay_us(void *arg, unsigned us)
{
ets_delay_us(1000 * ms);
ets_delay_us(us);
return ESP_OK;
}
const DRAM_ATTR esp_flash_os_functions_t esp_flash_noos_functions = {
.start = start,
.end = end,
.delay_ms = delay_ms,
.delay_us = delay_us,
.region_protected = NULL,
};