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esp_flash: fix the set/get write protection functions

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Add support for get write protection support, fixed the duplicated
set_write_protection link.

All the write_protection check in the top layer are removed. The lower
levels (chip) should ensure to disable write protection before the
operation start.
This commit is contained in:
Michael (XIAO Xufeng)
2019-08-02 13:04:48 +08:00
parent 16ee476a77
commit 1cc860216e
7 changed files with 77 additions and 52 deletions
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14
components/spi_flash/include/spi_flash_chip_generic.h
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@@ -173,7 +173,19 @@ spi_flash_chip_generic_write_encrypted(esp_flash_t *chip, const void *buffer, ui
* - ESP_OK if success
* - or other error passed from the ``wait_idle``, ``read_status`` or ``set_write_protect`` function of host driver
*/
esp_err_t spi_flash_chip_generic_write_enable(esp_flash_t *chip, bool write_protect);
esp_err_t spi_flash_chip_generic_set_write_protect(esp_flash_t *chip, bool write_protect);
/**
* @brief Check whether WEL (write enable latch) bit is set in the Status Register read from RDSR (05h).
*
* @param chip Pointer to SPI flash chip to use. If NULL, esp_flash_default_chip is substituted.
* @param out_write_protect Output of whether the write protect is set.
*
* @return
* - ESP_OK if success
* - or other error passed from the ``read_status`` function of host driver
*/
esp_err_t spi_flash_chip_generic_get_write_protect(esp_flash_t *chip, bool *out_write_protect);
/**
* @brief Read flash status via the RDSR command (05h) and wait for bit 0 (write