int
spiflash_erase_device(struct spiflash_device *dev, struct spiflash_transaction *trans, spi_cb cb, void *cbdata)
{
trans->spi_query[0] = DEVICE_ERASE;
spiflash_setup_xfer(trans, 1, 0);
trans->spi_cb = cb;
trans->cbdata = cbdata;
spiflash_queue_transaction(dev, trans, WRITE_ENABLE, true, spiflash_spi_done_cb);
return 0;
}
int
spiflash_get_status(struct spiflash_device *dev, struct spiflash_transaction *trans,
spiflash_status_cb cb, void *cbdata)
{
trans->spi_query[0] = READ_STATUS_REGISTER_1;
spiflash_setup_xfer(trans, 1, 2);
trans->status_cb = cb;
trans->cbdata = cbdata;
spiflash_queue_transaction(dev, trans, NO_OP, false, spiflash_status_done_cb);
return 0;
}
int
spiflash_get_id(struct spiflash_device *dev, struct spiflash_transaction *trans,
spiflash_info_cb cb, void *cbdata)
{
trans->spi_query[0] = GET_IDENTIFICATION;
trans->spi_query[1] = trans->spi_query[2] = trans->spi_query[3] = 0x00;
spiflash_setup_xfer(trans, 4, 4);
trans->info_cb = cb;
trans->cbdata = cbdata;
spiflash_queue_transaction(dev, trans, NO_OP, false, spiflash_get_id_done_cb);
return 0;
}
int
spiflash_read_page(struct spiflash_device *dev, struct spiflash_transaction *trans,
uint8_t *dest, uint32_t addr, uint32_t len, spi_cb cb, void *cbdata)
{
trans->spi_query[0] = READ_DATA;
trans->spi_query[1] = addr >> 16;
trans->spi_query[2] = addr >> 8;
trans->spi_query[3] = addr;
trans->spi_cb = cb;
trans->cbdata = cbdata;
sg_init_list(trans->flash_tx_sg, 1, trans->spi_query, 4);
sg_init_list(trans->flash_rx_sg, 2, trans->spi_response, 4, dest, len);
spiflash_queue_transaction(dev, trans, NO_OP, false, spiflash_spi_done_cb);
return 0;
}
static int
spiflash_write_cmd(struct spiflash_device *dev, struct spiflash_transaction *trans,
uint8_t cmd, uint32_t addr, const uint8_t *src, uint8_t len,
spi_cb cb, void *cbdata)
{
trans->spi_query[0] = cmd;
trans->spi_query[1] = addr >> 16;
trans->spi_query[2] = addr >> 8;
trans->spi_query[3] = addr;
if (src)
sg_init_list(trans->flash_tx_sg, 2, trans->spi_query, 4, src, len);
else
sg_init_list(trans->flash_tx_sg, 1, trans->spi_query, 4);
sg_init_list(trans->flash_rx_sg, 0);
trans->spi_cb = cb;
trans->cbdata = cbdata;
spiflash_queue_transaction(dev, trans, WRITE_ENABLE, true, spiflash_spi_done_cb);
return 0;
}
