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drivers/mtd_spi_nor: do address conversion in SPI function

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This commit is contained in:
Benjamin Valentin 2020-10-25 21:41:33 +01:00
parent 27cf34d836
commit 783df5990b
1 changed files with 24 additions and 22 deletions
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46
drivers/mtd_spi_nor/mtd_spi_nor.c
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@ -84,6 +84,12 @@ static void mtd_spi_release(const mtd_spi_nor_t *dev)
spi_release(_get_spi(dev));
}
static inline uint8_t* _be_addr(const mtd_spi_nor_t *dev, uint32_t *addr)
{
*addr = htonl(*addr);
return &((uint8_t*)addr)[4 - dev->params->addr_width];
}
/**
* @internal
* @brief Send command opcode followed by address, followed by a read to buffer
@ -95,13 +101,13 @@ static void mtd_spi_release(const mtd_spi_nor_t *dev)
* @param[in] count number of bytes to read after the address has been sent
*/
static void mtd_spi_cmd_addr_read(const mtd_spi_nor_t *dev, uint8_t opcode,
be_uint32_t addr, void *dest, uint32_t count)
uint32_t addr, void *dest, uint32_t count)
{
TRACE("mtd_spi_cmd_addr_read: %p, %02x, (%02x %02x %02x %02x), %p, %" PRIu32 "\n",
(void *)dev, (unsigned int)opcode, addr.u8[0], addr.u8[1], addr.u8[2],
addr.u8[3], dest, count);
TRACE("mtd_spi_cmd_addr_read: %p, %02x, (%06"PRIx32"), %p, %" PRIu32 "\n",
(void *)dev, (unsigned int)opcode, addr, dest, count);
uint8_t *addr_buf = _be_addr(dev, &addr);
uint8_t *addr_buf = &addr.u8[4 - dev->params->addr_width];
if (ENABLE_TRACE) {
TRACE("mtd_spi_cmd_addr_read: addr:");
for (unsigned int i = 0; i < dev->params->addr_width; ++i) {
@ -131,13 +137,13 @@ static void mtd_spi_cmd_addr_read(const mtd_spi_nor_t *dev, uint8_t opcode,
* @param[in] count number of bytes to write after the opcode has been sent
*/
static void mtd_spi_cmd_addr_write(const mtd_spi_nor_t *dev, uint8_t opcode,
be_uint32_t addr, const void *src, uint32_t count)
uint32_t addr, const void *src, uint32_t count)
{
TRACE("mtd_spi_cmd_addr_write: %p, %02x, (%02x %02x %02x %02x), %p, %" PRIu32 "\n",
(void *)dev, (unsigned int)opcode, addr.u8[0], addr.u8[1], addr.u8[2],
addr.u8[3], src, count);
TRACE("mtd_spi_cmd_addr_write: %p, %02x, (%06"PRIx32"), %p, %" PRIu32 "\n",
(void *)dev, (unsigned int)opcode, addr, src, count);
uint8_t *addr_buf = _be_addr(dev, &addr);
uint8_t *addr_buf = &addr.u8[4 - dev->params->addr_width];
if (ENABLE_TRACE) {
TRACE("mtd_spi_cmd_addr_write: addr:");
for (unsigned int i = 0; i < dev->params->addr_width; ++i) {
@ -488,10 +494,8 @@ static int mtd_spi_nor_read(mtd_dev_t *mtd, void *dest, uint32_t addr, uint32_t
return 0;
}
be_uint32_t addr_be = byteorder_htonl(addr);
mtd_spi_acquire(dev);
mtd_spi_cmd_addr_read(dev, dev->params->opcode->read, addr_be, dest, size);
mtd_spi_cmd_addr_read(dev, dev->params->opcode->read, addr, dest, size);
mtd_spi_release(dev);
return 0;
@ -520,15 +524,13 @@ static int mtd_spi_nor_write(mtd_dev_t *mtd, const void *src, uint32_t addr, uin
return -EOVERFLOW;
}
be_uint32_t addr_be = byteorder_htonl(addr);
mtd_spi_acquire(dev);
/* write enable */
mtd_spi_cmd(dev, dev->params->opcode->wren);
/* Page program */
mtd_spi_cmd_addr_write(dev, dev->params->opcode->page_program, addr_be, src, size);
mtd_spi_cmd_addr_write(dev, dev->params->opcode->page_program, addr, src, size);
/* waiting for the command to complete before returning */
wait_for_write_complete(dev, 0);
@ -549,7 +551,7 @@ static int mtd_spi_nor_write_page(mtd_dev_t *mtd, const void *src, uint32_t page
uint32_t remaining = mtd->page_size - offset;
size = MIN(remaining, size);
be_uint32_t addr_be = byteorder_htonl(page * mtd->page_size + offset);
uint32_t addr = page * mtd->page_size + offset;
mtd_spi_acquire(dev);
@ -557,7 +559,7 @@ static int mtd_spi_nor_write_page(mtd_dev_t *mtd, const void *src, uint32_t page
mtd_spi_cmd(dev, dev->params->opcode->wren);
/* Page program */
mtd_spi_cmd_addr_write(dev, dev->params->opcode->page_program, addr_be, src, size);
mtd_spi_cmd_addr_write(dev, dev->params->opcode->page_program, addr, src, size);
/* waiting for the command to complete before returning */
wait_for_write_complete(dev, 0);
@ -594,7 +596,7 @@ static int mtd_spi_nor_erase(mtd_dev_t *mtd, uint32_t addr, uint32_t size)
mtd_spi_acquire(dev);
while (size) {
uint32_t us;
be_uint32_t addr_be = byteorder_htonl(addr);
/* write enable */
mtd_spi_cmd(dev, dev->params->opcode->wren);
@ -606,7 +608,7 @@ static int mtd_spi_nor_erase(mtd_dev_t *mtd, uint32_t addr, uint32_t size)
else if ((dev->params->flag & SPI_NOR_F_SECT_32K) && (size >= MTD_32K) &&
((addr & MTD_32K_ADDR_MASK) == 0)) {
/* 32 KiB blocks can be erased with block erase command */
mtd_spi_cmd_addr_write(dev, dev->params->opcode->block_erase_32k, addr_be, NULL, 0);
mtd_spi_cmd_addr_write(dev, dev->params->opcode->block_erase_32k, addr, NULL, 0);
addr += MTD_32K;
size -= MTD_32K;
us = dev->params->wait_32k_erase;
@ -614,13 +616,13 @@ static int mtd_spi_nor_erase(mtd_dev_t *mtd, uint32_t addr, uint32_t size)
else if ((dev->params->flag & SPI_NOR_F_SECT_4K) && (size >= MTD_4K) &&
((addr & MTD_4K_ADDR_MASK) == 0)) {
/* 4 KiB sectors can be erased with sector erase command */
mtd_spi_cmd_addr_write(dev, dev->params->opcode->sector_erase, addr_be, NULL, 0);
mtd_spi_cmd_addr_write(dev, dev->params->opcode->sector_erase, addr, NULL, 0);
addr += MTD_4K;
size -= MTD_4K;
us = dev->params->wait_4k_erase;
}
else {
mtd_spi_cmd_addr_write(dev, dev->params->opcode->block_erase, addr_be, NULL, 0);
mtd_spi_cmd_addr_write(dev, dev->params->opcode->block_erase, addr, NULL, 0);
addr += sector_size;
size -= sector_size;
us = dev->params->wait_sector_erase;