From ac2357b001b970ff281d05566697c3d73f66ea4a Mon Sep 17 00:00:00 2001 From: Fredrik Thulin Date: Sat, 21 May 2016 14:40:11 +0200 Subject: Add code to test reading, writing and erasing keystore data. --- spiflash_n25q128.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'spiflash_n25q128.c') diff --git a/spiflash_n25q128.c b/spiflash_n25q128.c index 985e727..6e35a41 100644 --- a/spiflash_n25q128.c +++ b/spiflash_n25q128.c @@ -333,3 +333,22 @@ int n25q128_write_data(struct spiflash_ctx *ctx, uint32_t offset, const uint8_t return 1; } +/* This function reads zero or more pages from the SPI flash. */ +int n25q128_read_data(struct spiflash_ctx *ctx, uint32_t offset, uint8_t *buf, const uint32_t len) +{ + uint32_t page; + + /* Ensure alignment */ + if ((offset % N25Q128_PAGE_SIZE) != 0) return -1; + if ((len % N25Q128_PAGE_SIZE) != 0) return -2; + + for (page = 0; page < len / N25Q128_PAGE_SIZE; page++) { + if (! n25q128_read_page(ctx, offset / N25Q128_PAGE_SIZE, buf)) { + return -3; + } + buf += N25Q128_PAGE_SIZE; + offset += N25Q128_PAGE_SIZE; + } + + return 1; +} -- cgit v1.2.3