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Diffstat (limited to 'spiflash_n25q128.c')
-rw-r--r--spiflash_n25q128.c48
1 files changed, 16 insertions, 32 deletions
diff --git a/spiflash_n25q128.c b/spiflash_n25q128.c
index 371bef2..35a2fcf 100644
--- a/spiflash_n25q128.c
+++ b/spiflash_n25q128.c
@@ -49,7 +49,8 @@
#endif
-int _n25q128_get_wel_flag(struct spiflash_ctx *ctx);
+static int _n25q128_get_wel_flag(struct spiflash_ctx *ctx);
+static int _wait_while_wip(struct spiflash_ctx *ctx, uint32_t timeout);
int n25q128_check_id(struct spiflash_ctx *ctx)
@@ -67,7 +68,6 @@ int n25q128_check_id(struct spiflash_ctx *ctx)
// select, send command & read response, deselect
_n25q128_select(ctx);
ok = HAL_SPI_TransmitReceive(ctx->hspi, spi_tx, spi_rx, 4, N25Q128_SPI_TIMEOUT);
- HAL_Delay(1);
_n25q128_deselect(ctx);
// check
@@ -108,7 +108,6 @@ int n25q128_read_page(struct spiflash_ctx *ctx, uint32_t page_offset, uint8_t *p
// activate, send command
_n25q128_select(ctx);
ok = HAL_SPI_Transmit(ctx->hspi, spi_tx, 4, N25Q128_SPI_TIMEOUT);
- HAL_Delay(1);
// check
if (ok != HAL_OK) {
@@ -118,7 +117,6 @@ int n25q128_read_page(struct spiflash_ctx *ctx, uint32_t page_offset, uint8_t *p
// read response, deselect
ok = HAL_SPI_Receive(ctx->hspi, page_buffer, N25Q128_PAGE_SIZE, N25Q128_SPI_TIMEOUT);
- HAL_Delay(1);
_n25q128_deselect(ctx);
// check
@@ -146,7 +144,6 @@ int n25q128_write_page(struct spiflash_ctx *ctx, uint32_t page_offset, const uin
// activate, send command, deselect
_n25q128_select(ctx);
ok = HAL_SPI_Transmit(ctx->hspi, spi_tx, 1, N25Q128_SPI_TIMEOUT);
- HAL_Delay(1);
_n25q128_deselect(ctx);
// check
@@ -168,7 +165,6 @@ int n25q128_write_page(struct spiflash_ctx *ctx, uint32_t page_offset, const uin
// activate, send command
_n25q128_select(ctx);
ok = HAL_SPI_Transmit(ctx->hspi, spi_tx, 4, N25Q128_SPI_TIMEOUT);
- HAL_Delay(1);
// check
if (ok != HAL_OK) {
@@ -178,18 +174,20 @@ int n25q128_write_page(struct spiflash_ctx *ctx, uint32_t page_offset, const uin
// send data, deselect
ok = HAL_SPI_Transmit(ctx->hspi, (uint8_t *) page_buffer, N25Q128_PAGE_SIZE, N25Q128_SPI_TIMEOUT);
- HAL_Delay(1);
_n25q128_deselect(ctx);
// check
if (ok != HAL_OK) return 0;
+ // wait until write finishes
+ if (! _wait_while_wip(ctx, 1000)) return 0;
+
// done
return 1;
}
-int n25q128_get_wip_flag(struct spiflash_ctx *ctx)
+static int n25q128_get_wip_flag(struct spiflash_ctx *ctx)
{
// tx, rx buffers
uint8_t spi_tx[2];
@@ -204,7 +202,6 @@ int n25q128_get_wip_flag(struct spiflash_ctx *ctx)
// send command, read response, deselect
_n25q128_select(ctx);
ok = HAL_SPI_TransmitReceive(ctx->hspi, spi_tx, spi_rx, 2, N25Q128_SPI_TIMEOUT);
- HAL_Delay(1);
_n25q128_deselect(ctx);
// check
@@ -215,16 +212,18 @@ int n25q128_get_wip_flag(struct spiflash_ctx *ctx)
}
/* Wait until the flash memory is done writing (wip = Write In Progress) */
-inline int _wait_while_wip(struct spiflash_ctx *ctx, uint32_t timeout)
+static int _wait_while_wip(struct spiflash_ctx *ctx, uint32_t timeout)
{
+ uint32_t tick_end = HAL_GetTick() + timeout;
int i;
- while (timeout--) {
+
+ do {
i = n25q128_get_wip_flag(ctx);
if (i < 0) return 0;
- if (! i) break;
- HAL_Delay(10);
- }
- return 1;
+ if (! i) return 1;
+ } while (HAL_GetTick() < tick_end);
+
+ return 0;
}
static int n25q128_erase_something(struct spiflash_ctx *ctx, uint8_t command, uint32_t byte_offset)
@@ -244,7 +243,6 @@ static int n25q128_erase_something(struct spiflash_ctx *ctx, uint8_t command, ui
// select, send command, deselect
_n25q128_select(ctx);
ok = HAL_SPI_Transmit(ctx->hspi, spi_tx, 1, N25Q128_SPI_TIMEOUT);
- HAL_Delay(1);
_n25q128_deselect(ctx);
// check
@@ -263,7 +261,6 @@ static int n25q128_erase_something(struct spiflash_ctx *ctx, uint8_t command, ui
// activate, send command, deselect
_n25q128_select(ctx);
ok = HAL_SPI_Transmit(ctx->hspi, spi_tx, 4, N25Q128_SPI_TIMEOUT);
- HAL_Delay(1);
_n25q128_deselect(ctx);
// check
@@ -271,7 +268,7 @@ static int n25q128_erase_something(struct spiflash_ctx *ctx, uint8_t command, ui
// wait for erase to finish
- if (! _wait_while_wip(ctx, 2000)) return 0;
+ if (! _wait_while_wip(ctx, 1000)) return 0;
// done
return 1;
@@ -306,7 +303,6 @@ int n25q128_erase_bulk(struct spiflash_ctx *ctx)
// select, send command, deselect
_n25q128_select(ctx);
ok = HAL_SPI_Transmit(ctx->hspi, spi_tx, 1, N25Q128_SPI_TIMEOUT);
- HAL_Delay(1);
_n25q128_deselect(ctx);
// check
@@ -322,7 +318,6 @@ int n25q128_erase_bulk(struct spiflash_ctx *ctx)
// activate, send command, deselect
_n25q128_select(ctx);
ok = HAL_SPI_Transmit(ctx->hspi, spi_tx, 1, N25Q128_SPI_TIMEOUT);
- HAL_Delay(1);
_n25q128_deselect(ctx);
// check
@@ -340,7 +335,7 @@ int n25q128_erase_bulk(struct spiflash_ctx *ctx)
/*
* Read the Write Enable Latch bit in the status register.
*/
-int _n25q128_get_wel_flag(struct spiflash_ctx *ctx)
+static int _n25q128_get_wel_flag(struct spiflash_ctx *ctx)
{
// tx, rx buffers
uint8_t spi_tx[2];
@@ -355,7 +350,6 @@ int _n25q128_get_wel_flag(struct spiflash_ctx *ctx)
// send command, read response, deselect
_n25q128_select(ctx);
ok = HAL_SPI_TransmitReceive(ctx->hspi, spi_tx, spi_rx, 2, N25Q128_SPI_TIMEOUT);
- HAL_Delay(1);
_n25q128_deselect(ctx);
// check
@@ -385,16 +379,12 @@ int n25q128_write_data(struct spiflash_ctx *ctx, uint32_t offset, const uint8_t
* sectors.
*/
- if (! _wait_while_wip(ctx, 1000)) return -3;
-
if (! n25q128_erase_sector(ctx, offset / N25Q128_SECTOR_SIZE)) {
return -4;
}
}
for (page = 0; page < len / N25Q128_PAGE_SIZE; page++) {
- if (! _wait_while_wip(ctx, 1000)) return -5;
-
if (! n25q128_write_page(ctx, offset / N25Q128_PAGE_SIZE, buf)) {
return -6;
}
@@ -406,12 +396,6 @@ int n25q128_write_data(struct spiflash_ctx *ctx, uint32_t offset, const uint8_t
*/
}
- /*
- * Wait until last write finishes.
- */
-
- if (! _wait_while_wip(ctx, 1000)) return -7;
-
return 1;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 15:51:20 +0000