static int
nand_ioctl(struct disk *ndisk, u_long cmd, void *data, int fflag,
struct thread *td)
{
struct nand_chip *chip;
struct chip_geom *cg;
struct nand_oob_rw *oob_rw = NULL;
struct nand_raw_rw *raw_rw = NULL;
device_t nandbus;
size_t bufsize = 0, len = 0;
size_t raw_size;
off_t off;
uint8_t *buf = NULL;
int ret = 0;
uint8_t status;
chip = (struct nand_chip *)ndisk->d_drv1;
cg = &chip->chip_geom;
nandbus = device_get_parent(chip->dev);
if ((cmd == NAND_IO_RAW_READ) || (cmd == NAND_IO_RAW_PROG)) {
raw_rw = (struct nand_raw_rw *)data;
raw_size = cg->pgs_per_blk * (cg->page_size + cg->oob_size);
/* Check if len is not bigger than chip size */
if (raw_rw->len > raw_size)
return (EFBIG);
/*
* Do not ask for too much memory, in case of large transfers
* read/write in 16-pages chunks
*/
bufsize = 16 * (cg->page_size + cg->oob_size);
if (raw_rw->len < bufsize)
bufsize = raw_rw->len;
buf = malloc(bufsize, M_NAND, M_WAITOK);
len = raw_rw->len;
off = 0;
}
switch (cmd) {
case NAND_IO_ERASE:
ret = nand_erase_blocks(chip, ((off_t *)data)[0],
((off_t *)data)[1]);
break;
case NAND_IO_OOB_READ:
oob_rw = (struct nand_oob_rw *)data;
ret = nand_oob_access(chip, oob_rw->page, 0,
oob_rw->len, oob_rw->data, 0);
break;
case NAND_IO_OOB_PROG:
oob_rw = (struct nand_oob_rw *)data;
ret = nand_oob_access(chip, oob_rw->page, 0,
oob_rw->len, oob_rw->data, 1);
break;
case NAND_IO_GET_STATUS:
NANDBUS_LOCK(nandbus);
ret = NANDBUS_GET_STATUS(nandbus, &status);
if (ret == 0)
*(uint8_t *)data = status;
NANDBUS_UNLOCK(nandbus);
break;
case NAND_IO_RAW_PROG:
while (len > 0) {
if (len < bufsize)
bufsize = len;
ret = copyin(raw_rw->data + off, buf, bufsize);
if (ret)
break;
ret = nand_prog_pages_raw(chip, raw_rw->off + off, buf,
bufsize);
if (ret)
break;
len -= bufsize;
off += bufsize;
}
break;
case NAND_IO_RAW_READ:
while (len > 0) {
if (len < bufsize)
bufsize = len;
ret = nand_read_pages_raw(chip, raw_rw->off + off, buf,
bufsize);
if (ret)
break;
ret = copyout(buf, raw_rw->data + off, bufsize);
if (ret)
break;
len -= bufsize;
off += bufsize;
}
break;
case NAND_IO_GET_CHIP_PARAM:
nand_get_chip_param(chip, (struct chip_param_io *)data);
break;
default:
printf("Unknown nand_ioctl request \n");
ret = EIO;
}
if (buf)
free(buf, M_NAND);
return (ret);
}
static int
nand_ioctl(struct disk *ndisk, u_long cmd, void *data, int fflag,
struct thread *td)
{
struct nand_chip *chip;
struct nand_oob_rw *oob_rw = NULL;
struct nand_raw_rw *raw_rw = NULL;
device_t nandbus;
uint8_t *buf = NULL;
int ret = 0;
uint8_t status;
chip = (struct nand_chip *)ndisk->d_drv1;
nandbus = device_get_parent(chip->dev);
if ((cmd == NAND_IO_RAW_READ) || (cmd == NAND_IO_RAW_PROG)) {
raw_rw = (struct nand_raw_rw *)data;
buf = malloc(raw_rw->len, M_NAND, M_WAITOK);
}
switch (cmd) {
case NAND_IO_ERASE:
ret = nand_erase_blocks(chip, ((off_t *)data)[0],
((off_t *)data)[1]);
break;
case NAND_IO_OOB_READ:
oob_rw = (struct nand_oob_rw *)data;
ret = nand_oob_access(chip, oob_rw->page, 0,
oob_rw->len, oob_rw->data, 0);
break;
case NAND_IO_OOB_PROG:
oob_rw = (struct nand_oob_rw *)data;
ret = nand_oob_access(chip, oob_rw->page, 0,
oob_rw->len, oob_rw->data, 1);
break;
case NAND_IO_GET_STATUS:
NANDBUS_LOCK(nandbus);
ret = NANDBUS_GET_STATUS(nandbus, &status);
if (ret == 0)
*(uint8_t *)data = status;
NANDBUS_UNLOCK(nandbus);
break;
case NAND_IO_RAW_PROG:
copyin(raw_rw->data, buf, raw_rw->len);
ret = nand_prog_pages_raw(chip, raw_rw->off, buf,
raw_rw->len);
break;
case NAND_IO_RAW_READ:
ret = nand_read_pages_raw(chip, raw_rw->off, buf,
raw_rw->len);
copyout(buf, raw_rw->data, raw_rw->len);
break;
case NAND_IO_GET_CHIP_PARAM:
nand_get_chip_param(chip, (struct chip_param_io *)data);
break;
default:
printf("Unknown nand_ioctl request \n");
ret = EIO;
}
if (buf)
free(buf, M_NAND);
return (ret);
}