static int
pci_ioctl(struct dev_ioctl_args *ap)
{
device_t pcidev, brdev;
void *confdata;
const char *name;
struct devlist *devlist_head;
struct pci_conf_io *cio;
struct pci_devinfo *dinfo;
struct pci_io *io;
struct pci_bar_io *bio;
struct pci_match_conf *pattern_buf;
struct resource_list_entry *rle;
uint32_t value;
size_t confsz, iolen, pbufsz;
int error, ionum, i, num_patterns;
#ifdef PRE7_COMPAT
struct pci_conf_old conf_old;
struct pci_io iodata;
struct pci_io_old *io_old;
struct pci_match_conf_old *pattern_buf_old;
io_old = NULL;
pattern_buf_old = NULL;
if (!(ap->a_fflag & FWRITE) && ap->a_cmd != PCIOCGETBAR &&
ap->a_cmd != PCIOCGETCONF && ap->a_cmd != PCIOCGETCONF_OLD)
return EPERM;
#else
if (!(ap->a_fflag & FWRITE) && ap->a_cmd != PCIOCGETBAR && ap->a_cmd != PCIOCGETCONF)
return EPERM;
#endif
switch(ap->a_cmd) {
#ifdef PRE7_COMPAT
case PCIOCGETCONF_OLD:
/* FALLTHROUGH */
#endif
case PCIOCGETCONF:
cio = (struct pci_conf_io *)ap->a_data;
pattern_buf = NULL;
num_patterns = 0;
dinfo = NULL;
cio->num_matches = 0;
/*
* If the user specified an offset into the device list,
* but the list has changed since they last called this
* ioctl, tell them that the list has changed. They will
* have to get the list from the beginning.
*/
if ((cio->offset != 0)
&& (cio->generation != pci_generation)){
cio->status = PCI_GETCONF_LIST_CHANGED;
error = 0;
break;
}
/*
* Check to see whether the user has asked for an offset
* past the end of our list.
*/
if (cio->offset >= pci_numdevs) {
cio->status = PCI_GETCONF_LAST_DEVICE;
error = 0;
break;
}
/* get the head of the device queue */
devlist_head = &pci_devq;
/*
* Determine how much room we have for pci_conf structures.
* Round the user's buffer size down to the nearest
* multiple of sizeof(struct pci_conf) in case the user
* didn't specify a multiple of that size.
*/
#ifdef PRE7_COMPAT
if (ap->a_cmd == PCIOCGETCONF_OLD)
confsz = sizeof(struct pci_conf_old);
else
#endif
confsz = sizeof(struct pci_conf);
iolen = min(cio->match_buf_len - (cio->match_buf_len % confsz),
pci_numdevs * confsz);
/*
* Since we know that iolen is a multiple of the size of
* the pciconf union, it's okay to do this.
*/
ionum = iolen / confsz;
/*
* If this test is true, the user wants the pci_conf
* structures returned to match the supplied entries.
*/
if ((cio->num_patterns > 0) && (cio->num_patterns < pci_numdevs)
&& (cio->pat_buf_len > 0)) {
/*
* pat_buf_len needs to be:
* num_patterns * sizeof(struct pci_match_conf)
* While it is certainly possible the user just
* allocated a large buffer, but set the number of
* matches correctly, it is far more likely that
* their kernel doesn't match the userland utility
* they're using. It's also possible that the user
* forgot to initialize some variables. Yes, this
* may be overly picky, but I hazard to guess that
* it's far more likely to just catch folks that
* updated their kernel but not their userland.
*/
#ifdef PRE7_COMPAT
if (ap->a_cmd == PCIOCGETCONF_OLD)
pbufsz = sizeof(struct pci_match_conf_old);
else
#endif
pbufsz = sizeof(struct pci_match_conf);
if (cio->num_patterns * pbufsz != cio->pat_buf_len) {
/* The user made a mistake, return an error. */
cio->status = PCI_GETCONF_ERROR;
error = EINVAL;
break;
}
/*
* Allocate a buffer to hold the patterns.
*/
#ifdef PRE7_COMPAT
if (ap->a_cmd == PCIOCGETCONF_OLD) {
pattern_buf_old = kmalloc(cio->pat_buf_len,
M_TEMP, M_WAITOK);
error = copyin(cio->patterns,
pattern_buf_old, cio->pat_buf_len);
} else
#endif
{
pattern_buf = kmalloc(cio->pat_buf_len, M_TEMP,
M_WAITOK);
error = copyin(cio->patterns, pattern_buf,
cio->pat_buf_len);
}
if (error != 0) {
error = EINVAL;
goto getconfexit;
}
num_patterns = cio->num_patterns;
} else if ((cio->num_patterns > 0)
|| (cio->pat_buf_len > 0)) {
/*
* The user made a mistake, spit out an error.
*/
cio->status = PCI_GETCONF_ERROR;
error = EINVAL;
break;
}
/*
* Go through the list of devices and copy out the devices
* that match the user's criteria.
*/
for (cio->num_matches = 0, error = 0, i = 0,
dinfo = STAILQ_FIRST(devlist_head);
(dinfo != NULL) && (cio->num_matches < ionum)
&& (error == 0) && (i < pci_numdevs) && (dinfo != NULL);
dinfo = STAILQ_NEXT(dinfo, pci_links), i++) {
if (i < cio->offset)
continue;
/* Populate pd_name and pd_unit */
name = NULL;
if (dinfo->cfg.dev)
name = device_get_name(dinfo->cfg.dev);
if (name) {
strncpy(dinfo->conf.pd_name, name,
sizeof(dinfo->conf.pd_name));
dinfo->conf.pd_name[PCI_MAXNAMELEN] = 0;
dinfo->conf.pd_unit =
device_get_unit(dinfo->cfg.dev);
} else {
dinfo->conf.pd_name[0] = '\0';
dinfo->conf.pd_unit = 0;
}
#ifdef PRE7_COMPAT
if ((ap->a_cmd == PCIOCGETCONF_OLD &&
(pattern_buf_old == NULL ||
pci_conf_match_old(pattern_buf_old, num_patterns,
&dinfo->conf) == 0)) ||
(ap->a_cmd == PCIOCGETCONF &&
(pattern_buf == NULL ||
pci_conf_match(pattern_buf, num_patterns,
&dinfo->conf) == 0))) {
#else
if (pattern_buf == NULL ||
pci_conf_match(pattern_buf, num_patterns,
&dinfo->conf) == 0) {
#endif
/*
* If we've filled up the user's buffer,
* break out at this point. Since we've
* got a match here, we'll pick right back
* up at the matching entry. We can also
* tell the user that there are more matches
* left.
*/
if (cio->num_matches >= ionum)
break;
#ifdef PRE7_COMPAT
if (ap->a_cmd == PCIOCGETCONF_OLD) {
conf_old.pc_sel.pc_bus =
dinfo->conf.pc_sel.pc_bus;
conf_old.pc_sel.pc_dev =
dinfo->conf.pc_sel.pc_dev;
conf_old.pc_sel.pc_func =
dinfo->conf.pc_sel.pc_func;
conf_old.pc_hdr = dinfo->conf.pc_hdr;
conf_old.pc_subvendor =
dinfo->conf.pc_subvendor;
conf_old.pc_subdevice =
dinfo->conf.pc_subdevice;
conf_old.pc_vendor =
dinfo->conf.pc_vendor;
conf_old.pc_device =
dinfo->conf.pc_device;
conf_old.pc_class =
dinfo->conf.pc_class;
conf_old.pc_subclass =
dinfo->conf.pc_subclass;
conf_old.pc_progif =
dinfo->conf.pc_progif;
conf_old.pc_revid =
dinfo->conf.pc_revid;
strncpy(conf_old.pd_name,
dinfo->conf.pd_name,
sizeof(conf_old.pd_name));
conf_old.pd_name[PCI_MAXNAMELEN] = 0;
conf_old.pd_unit =
dinfo->conf.pd_unit;
confdata = &conf_old;
} else
#endif
confdata = &dinfo->conf;
/* Only if we can copy it out do we count it. */
if (!(error = copyout(confdata,
(caddr_t)cio->matches +
confsz * cio->num_matches, confsz)))
cio->num_matches++;
}
}
/*
* Set the pointer into the list, so if the user is getting
* n records at a time, where n < pci_numdevs,
*/
cio->offset = i;
/*
* Set the generation, the user will need this if they make
* another ioctl call with offset != 0.
*/
cio->generation = pci_generation;
/*
* If this is the last device, inform the user so he won't
* bother asking for more devices. If dinfo isn't NULL, we
* know that there are more matches in the list because of
* the way the traversal is done.
*/
if (dinfo == NULL)
cio->status = PCI_GETCONF_LAST_DEVICE;
else
cio->status = PCI_GETCONF_MORE_DEVS;
getconfexit:
if (pattern_buf != NULL)
kfree(pattern_buf, M_TEMP);
#ifdef PRE7_COMPAT
if (pattern_buf_old != NULL)
kfree(pattern_buf_old, M_TEMP);
#endif
break;
#ifdef PRE7_COMPAT
case PCIOCREAD_OLD:
case PCIOCWRITE_OLD:
io_old = (struct pci_io_old *)ap->a_data;
iodata.pi_sel.pc_domain = 0;
iodata.pi_sel.pc_bus = io_old->pi_sel.pc_bus;
iodata.pi_sel.pc_dev = io_old->pi_sel.pc_dev;
iodata.pi_sel.pc_func = io_old->pi_sel.pc_func;
iodata.pi_reg = io_old->pi_reg;
iodata.pi_width = io_old->pi_width;
iodata.pi_data = io_old->pi_data;
ap->a_data = (caddr_t)&iodata;
/* FALLTHROUGH */
#endif
case PCIOCREAD:
case PCIOCWRITE:
io = (struct pci_io *)ap->a_data;
switch(io->pi_width) {
case 4:
case 2:
case 1:
/* Make sure register is in bounds and aligned. */
if (io->pi_reg < 0 ||
io->pi_reg + io->pi_width > PCI_REGMAX + 1 ||
io->pi_reg & (io->pi_width - 1)) {
error = EINVAL;
break;
}
/*
* Assume that the user-level bus number is
* in fact the physical PCI bus number.
* Look up the grandparent, i.e. the bridge device,
* so that we can issue configuration space cycles.
*/
pcidev = pci_find_dbsf(io->pi_sel.pc_domain,
io->pi_sel.pc_bus, io->pi_sel.pc_dev,
io->pi_sel.pc_func);
if (pcidev) {
brdev = device_get_parent(
device_get_parent(pcidev));
#ifdef PRE7_COMPAT
if (ap->a_cmd == PCIOCWRITE || ap->a_cmd == PCIOCWRITE_OLD)
#else
if (ap->a_cmd == PCIOCWRITE)
#endif
PCIB_WRITE_CONFIG(brdev,
io->pi_sel.pc_bus,
io->pi_sel.pc_dev,
io->pi_sel.pc_func,
io->pi_reg,
io->pi_data,
io->pi_width);
#ifdef PRE7_COMPAT
else if (ap->a_cmd == PCIOCREAD_OLD)
io_old->pi_data =
PCIB_READ_CONFIG(brdev,
io->pi_sel.pc_bus,
io->pi_sel.pc_dev,
io->pi_sel.pc_func,
io->pi_reg,
io->pi_width);
#endif
else
io->pi_data =
PCIB_READ_CONFIG(brdev,
io->pi_sel.pc_bus,
io->pi_sel.pc_dev,
io->pi_sel.pc_func,
io->pi_reg,
io->pi_width);
error = 0;
} else {
#ifdef COMPAT_FREEBSD4
if (cmd == PCIOCREAD_OLD) {
io_old->pi_data = -1;
error = 0;
} else
#endif
error = ENODEV;
}
break;
default:
error = EINVAL;
break;
}
break;
case PCIOCGETBAR:
bio = (struct pci_bar_io *)ap->a_data;
/*
* Assume that the user-level bus number is
* in fact the physical PCI bus number.
*/
pcidev = pci_find_dbsf(bio->pbi_sel.pc_domain,
bio->pbi_sel.pc_bus, bio->pbi_sel.pc_dev,
bio->pbi_sel.pc_func);
if (pcidev == NULL) {
error = ENODEV;
break;
}
dinfo = device_get_ivars(pcidev);
/*
* Look for a resource list entry matching the requested BAR.
*
* XXX: This will not find BARs that are not initialized, but
* maybe that is ok?
*/
rle = resource_list_find(&dinfo->resources, SYS_RES_MEMORY,
bio->pbi_reg);
if (rle == NULL)
rle = resource_list_find(&dinfo->resources,
SYS_RES_IOPORT, bio->pbi_reg);
if (rle == NULL || rle->res == NULL) {
error = EINVAL;
break;
}
/*
* Ok, we have a resource for this BAR. Read the lower
* 32 bits to get any flags.
*/
value = pci_read_config(pcidev, bio->pbi_reg, 4);
if (PCI_BAR_MEM(value)) {
if (rle->type != SYS_RES_MEMORY) {
error = EINVAL;
break;
}
value &= ~PCIM_BAR_MEM_BASE;
} else {
if (rle->type != SYS_RES_IOPORT) {
error = EINVAL;
break;
}
value &= ~PCIM_BAR_IO_BASE;
}
bio->pbi_base = rman_get_start(rle->res) | value;
bio->pbi_length = rman_get_size(rle->res);
/*
* Check the command register to determine if this BAR
* is enabled.
*/
value = pci_read_config(pcidev, PCIR_COMMAND, 2);
if (rle->type == SYS_RES_MEMORY)
bio->pbi_enabled = (value & PCIM_CMD_MEMEN) != 0;
else
bio->pbi_enabled = (value & PCIM_CMD_PORTEN) != 0;
error = 0;
break;
default:
error = ENOTTY;
break;
}
return (error);
}
#define PCI_CDEV 78
struct dev_ops pcic_ops = {
{ "pci", PCI_CDEV, 0 },
.d_open = pci_open,
.d_close = pci_close,
.d_ioctl = pci_ioctl,
};
static int
pci_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
{
device_t pcidev;
void *confdata;
const char *name;
struct devlist *devlist_head;
struct pci_conf_io *cio = NULL;
struct pci_devinfo *dinfo;
struct pci_io *io;
struct pci_bar_io *bio;
struct pci_list_vpd_io *lvio;
struct pci_match_conf *pattern_buf;
struct pci_map *pm;
size_t confsz, iolen, pbufsz;
int error, ionum, i, num_patterns;
#ifdef PRE7_COMPAT
#ifdef COMPAT_FREEBSD32
struct pci_conf_io32 *cio32 = NULL;
struct pci_conf_old32 conf_old32;
struct pci_match_conf_old32 *pattern_buf_old32 = NULL;
#endif
struct pci_conf_old conf_old;
struct pci_io iodata;
struct pci_io_old *io_old;
struct pci_match_conf_old *pattern_buf_old = NULL;
io_old = NULL;
#endif
if (!(flag & FWRITE)) {
switch (cmd) {
#ifdef PRE7_COMPAT
#ifdef COMPAT_FREEBSD32
case PCIOCGETCONF_OLD32:
#endif
case PCIOCGETCONF_OLD:
#endif
case PCIOCGETCONF:
case PCIOCGETBAR:
case PCIOCLISTVPD:
break;
default:
return (EPERM);
}
}
switch (cmd) {
#ifdef PRE7_COMPAT
#ifdef COMPAT_FREEBSD32
case PCIOCGETCONF_OLD32:
cio32 = (struct pci_conf_io32 *)data;
cio = malloc(sizeof(struct pci_conf_io), M_TEMP, M_WAITOK);
cio->pat_buf_len = cio32->pat_buf_len;
cio->num_patterns = cio32->num_patterns;
cio->patterns = (void *)(uintptr_t)cio32->patterns;
cio->match_buf_len = cio32->match_buf_len;
cio->num_matches = cio32->num_matches;
cio->matches = (void *)(uintptr_t)cio32->matches;
cio->offset = cio32->offset;
cio->generation = cio32->generation;
cio->status = cio32->status;
cio32->num_matches = 0;
break;
#endif
case PCIOCGETCONF_OLD:
#endif
case PCIOCGETCONF:
cio = (struct pci_conf_io *)data;
}
switch (cmd) {
#ifdef PRE7_COMPAT
#ifdef COMPAT_FREEBSD32
case PCIOCGETCONF_OLD32:
#endif
case PCIOCGETCONF_OLD:
#endif
case PCIOCGETCONF:
pattern_buf = NULL;
num_patterns = 0;
dinfo = NULL;
cio->num_matches = 0;
/*
* If the user specified an offset into the device list,
* but the list has changed since they last called this
* ioctl, tell them that the list has changed. They will
* have to get the list from the beginning.
*/
if ((cio->offset != 0)
&& (cio->generation != pci_generation)){
cio->status = PCI_GETCONF_LIST_CHANGED;
error = 0;
goto getconfexit;
}
/*
* Check to see whether the user has asked for an offset
* past the end of our list.
*/
if (cio->offset >= pci_numdevs) {
cio->status = PCI_GETCONF_LAST_DEVICE;
error = 0;
goto getconfexit;
}
/* get the head of the device queue */
devlist_head = &pci_devq;
/*
* Determine how much room we have for pci_conf structures.
* Round the user's buffer size down to the nearest
* multiple of sizeof(struct pci_conf) in case the user
* didn't specify a multiple of that size.
*/
#ifdef PRE7_COMPAT
#ifdef COMPAT_FREEBSD32
if (cmd == PCIOCGETCONF_OLD32)
confsz = sizeof(struct pci_conf_old32);
else
#endif
if (cmd == PCIOCGETCONF_OLD)
confsz = sizeof(struct pci_conf_old);
else
#endif
confsz = sizeof(struct pci_conf);
iolen = min(cio->match_buf_len - (cio->match_buf_len % confsz),
pci_numdevs * confsz);
/*
* Since we know that iolen is a multiple of the size of
* the pciconf union, it's okay to do this.
*/
ionum = iolen / confsz;
/*
* If this test is true, the user wants the pci_conf
* structures returned to match the supplied entries.
*/
if ((cio->num_patterns > 0) && (cio->num_patterns < pci_numdevs)
&& (cio->pat_buf_len > 0)) {
/*
* pat_buf_len needs to be:
* num_patterns * sizeof(struct pci_match_conf)
* While it is certainly possible the user just
* allocated a large buffer, but set the number of
* matches correctly, it is far more likely that
* their kernel doesn't match the userland utility
* they're using. It's also possible that the user
* forgot to initialize some variables. Yes, this
* may be overly picky, but I hazard to guess that
* it's far more likely to just catch folks that
* updated their kernel but not their userland.
*/
#ifdef PRE7_COMPAT
#ifdef COMPAT_FREEBSD32
if (cmd == PCIOCGETCONF_OLD32)
pbufsz = sizeof(struct pci_match_conf_old32);
else
#endif
if (cmd == PCIOCGETCONF_OLD)
pbufsz = sizeof(struct pci_match_conf_old);
else
#endif
pbufsz = sizeof(struct pci_match_conf);
if (cio->num_patterns * pbufsz != cio->pat_buf_len) {
/* The user made a mistake, return an error. */
cio->status = PCI_GETCONF_ERROR;
error = EINVAL;
goto getconfexit;
}
/*
* Allocate a buffer to hold the patterns.
*/
#ifdef PRE7_COMPAT
#ifdef COMPAT_FREEBSD32
if (cmd == PCIOCGETCONF_OLD32) {
pattern_buf_old32 = malloc(cio->pat_buf_len,
M_TEMP, M_WAITOK);
error = copyin(cio->patterns,
pattern_buf_old32, cio->pat_buf_len);
} else
#endif /* COMPAT_FREEBSD32 */
if (cmd == PCIOCGETCONF_OLD) {
pattern_buf_old = malloc(cio->pat_buf_len,
M_TEMP, M_WAITOK);
error = copyin(cio->patterns,
pattern_buf_old, cio->pat_buf_len);
} else
#endif /* PRE7_COMPAT */
{
pattern_buf = malloc(cio->pat_buf_len, M_TEMP,
M_WAITOK);
error = copyin(cio->patterns, pattern_buf,
cio->pat_buf_len);
}
if (error != 0) {
error = EINVAL;
goto getconfexit;
}
num_patterns = cio->num_patterns;
} else if ((cio->num_patterns > 0)
|| (cio->pat_buf_len > 0)) {
/*
* The user made a mistake, spit out an error.
*/
cio->status = PCI_GETCONF_ERROR;
error = EINVAL;
goto getconfexit;
}
/*
* Go through the list of devices and copy out the devices
* that match the user's criteria.
*/
for (cio->num_matches = 0, i = 0,
dinfo = STAILQ_FIRST(devlist_head);
dinfo != NULL;
dinfo = STAILQ_NEXT(dinfo, pci_links), i++) {
if (i < cio->offset)
continue;
/* Populate pd_name and pd_unit */
name = NULL;
if (dinfo->cfg.dev)
name = device_get_name(dinfo->cfg.dev);
if (name) {
strncpy(dinfo->conf.pd_name, name,
sizeof(dinfo->conf.pd_name));
dinfo->conf.pd_name[PCI_MAXNAMELEN] = 0;
dinfo->conf.pd_unit =
device_get_unit(dinfo->cfg.dev);
} else {
dinfo->conf.pd_name[0] = '\0';
dinfo->conf.pd_unit = 0;
}
#ifdef PRE7_COMPAT
if (
#ifdef COMPAT_FREEBSD32
(cmd == PCIOCGETCONF_OLD32 &&
(pattern_buf_old32 == NULL ||
pci_conf_match_old32(pattern_buf_old32,
num_patterns, &dinfo->conf) == 0)) ||
#endif
(cmd == PCIOCGETCONF_OLD &&
(pattern_buf_old == NULL ||
pci_conf_match_old(pattern_buf_old, num_patterns,
&dinfo->conf) == 0)) ||
(cmd == PCIOCGETCONF &&
(pattern_buf == NULL ||
pci_conf_match(pattern_buf, num_patterns,
&dinfo->conf) == 0))) {
#else
if (pattern_buf == NULL ||
pci_conf_match(pattern_buf, num_patterns,
&dinfo->conf) == 0) {
#endif
/*
* If we've filled up the user's buffer,
* break out at this point. Since we've
* got a match here, we'll pick right back
* up at the matching entry. We can also
* tell the user that there are more matches
* left.
*/
if (cio->num_matches >= ionum)
break;
#ifdef PRE7_COMPAT
#ifdef COMPAT_FREEBSD32
if (cmd == PCIOCGETCONF_OLD32) {
conf_old32.pc_sel.pc_bus =
dinfo->conf.pc_sel.pc_bus;
conf_old32.pc_sel.pc_dev =
dinfo->conf.pc_sel.pc_dev;
conf_old32.pc_sel.pc_func =
dinfo->conf.pc_sel.pc_func;
conf_old32.pc_hdr = dinfo->conf.pc_hdr;
conf_old32.pc_subvendor =
dinfo->conf.pc_subvendor;
conf_old32.pc_subdevice =
dinfo->conf.pc_subdevice;
conf_old32.pc_vendor =
dinfo->conf.pc_vendor;
conf_old32.pc_device =
dinfo->conf.pc_device;
conf_old32.pc_class =
dinfo->conf.pc_class;
conf_old32.pc_subclass =
dinfo->conf.pc_subclass;
conf_old32.pc_progif =
dinfo->conf.pc_progif;
conf_old32.pc_revid =
dinfo->conf.pc_revid;
strncpy(conf_old32.pd_name,
dinfo->conf.pd_name,
sizeof(conf_old32.pd_name));
conf_old32.pd_name[PCI_MAXNAMELEN] = 0;
conf_old32.pd_unit =
(uint32_t)dinfo->conf.pd_unit;
confdata = &conf_old32;
} else
#endif /* COMPAT_FREEBSD32 */
if (cmd == PCIOCGETCONF_OLD) {
conf_old.pc_sel.pc_bus =
dinfo->conf.pc_sel.pc_bus;
conf_old.pc_sel.pc_dev =
dinfo->conf.pc_sel.pc_dev;
conf_old.pc_sel.pc_func =
dinfo->conf.pc_sel.pc_func;
conf_old.pc_hdr = dinfo->conf.pc_hdr;
conf_old.pc_subvendor =
dinfo->conf.pc_subvendor;
conf_old.pc_subdevice =
dinfo->conf.pc_subdevice;
conf_old.pc_vendor =
dinfo->conf.pc_vendor;
conf_old.pc_device =
dinfo->conf.pc_device;
conf_old.pc_class =
dinfo->conf.pc_class;
conf_old.pc_subclass =
dinfo->conf.pc_subclass;
conf_old.pc_progif =
dinfo->conf.pc_progif;
conf_old.pc_revid =
dinfo->conf.pc_revid;
strncpy(conf_old.pd_name,
dinfo->conf.pd_name,
sizeof(conf_old.pd_name));
conf_old.pd_name[PCI_MAXNAMELEN] = 0;
conf_old.pd_unit =
dinfo->conf.pd_unit;
confdata = &conf_old;
} else
#endif /* PRE7_COMPAT */
confdata = &dinfo->conf;
error = copyout(confdata,
(caddr_t)cio->matches +
confsz * cio->num_matches, confsz);
if (error)
break;
cio->num_matches++;
}
}
/*
* Set the pointer into the list, so if the user is getting
* n records at a time, where n < pci_numdevs,
*/
cio->offset = i;
/*
* Set the generation, the user will need this if they make
* another ioctl call with offset != 0.
*/
cio->generation = pci_generation;
/*
* If this is the last device, inform the user so he won't
* bother asking for more devices. If dinfo isn't NULL, we
* know that there are more matches in the list because of
* the way the traversal is done.
*/
if (dinfo == NULL)
cio->status = PCI_GETCONF_LAST_DEVICE;
else
cio->status = PCI_GETCONF_MORE_DEVS;
getconfexit:
#ifdef PRE7_COMPAT
#ifdef COMPAT_FREEBSD32
if (cmd == PCIOCGETCONF_OLD32) {
cio32->status = cio->status;
cio32->generation = cio->generation;
cio32->offset = cio->offset;
cio32->num_matches = cio->num_matches;
free(cio, M_TEMP);
}
if (pattern_buf_old32 != NULL)
free(pattern_buf_old32, M_TEMP);
#endif
if (pattern_buf_old != NULL)
free(pattern_buf_old, M_TEMP);
#endif
if (pattern_buf != NULL)
free(pattern_buf, M_TEMP);
break;
#ifdef PRE7_COMPAT
case PCIOCREAD_OLD:
case PCIOCWRITE_OLD:
io_old = (struct pci_io_old *)data;
iodata.pi_sel.pc_domain = 0;
iodata.pi_sel.pc_bus = io_old->pi_sel.pc_bus;
iodata.pi_sel.pc_dev = io_old->pi_sel.pc_dev;
iodata.pi_sel.pc_func = io_old->pi_sel.pc_func;
iodata.pi_reg = io_old->pi_reg;
iodata.pi_width = io_old->pi_width;
iodata.pi_data = io_old->pi_data;
data = (caddr_t)&iodata;
/* FALLTHROUGH */
#endif
case PCIOCREAD:
case PCIOCWRITE:
io = (struct pci_io *)data;
switch(io->pi_width) {
case 4:
case 2:
case 1:
/* Make sure register is not negative and aligned. */
if (io->pi_reg < 0 ||
io->pi_reg & (io->pi_width - 1)) {
error = EINVAL;
break;
}
/*
* Assume that the user-level bus number is
* in fact the physical PCI bus number.
* Look up the grandparent, i.e. the bridge device,
* so that we can issue configuration space cycles.
*/
pcidev = pci_find_dbsf(io->pi_sel.pc_domain,
io->pi_sel.pc_bus, io->pi_sel.pc_dev,
io->pi_sel.pc_func);
if (pcidev) {
#ifdef PRE7_COMPAT
if (cmd == PCIOCWRITE || cmd == PCIOCWRITE_OLD)
#else
if (cmd == PCIOCWRITE)
#endif
pci_write_config(pcidev,
io->pi_reg,
io->pi_data,
io->pi_width);
#ifdef PRE7_COMPAT
else if (cmd == PCIOCREAD_OLD)
io_old->pi_data =
pci_read_config(pcidev,
io->pi_reg,
io->pi_width);
#endif
else
io->pi_data =
pci_read_config(pcidev,
io->pi_reg,
io->pi_width);
error = 0;
} else {
#ifdef COMPAT_FREEBSD4
if (cmd == PCIOCREAD_OLD) {
io_old->pi_data = -1;
error = 0;
} else
#endif
error = ENODEV;
}
break;
default:
error = EINVAL;
break;
}
break;
case PCIOCGETBAR:
bio = (struct pci_bar_io *)data;
/*
* Assume that the user-level bus number is
* in fact the physical PCI bus number.
*/
pcidev = pci_find_dbsf(bio->pbi_sel.pc_domain,
bio->pbi_sel.pc_bus, bio->pbi_sel.pc_dev,
bio->pbi_sel.pc_func);
if (pcidev == NULL) {
error = ENODEV;
break;
}
pm = pci_find_bar(pcidev, bio->pbi_reg);
if (pm == NULL) {
error = EINVAL;
break;
}
bio->pbi_base = pm->pm_value;
bio->pbi_length = (pci_addr_t)1 << pm->pm_size;
bio->pbi_enabled = pci_bar_enabled(pcidev, pm);
error = 0;
break;
case PCIOCATTACHED:
error = 0;
io = (struct pci_io *)data;
pcidev = pci_find_dbsf(io->pi_sel.pc_domain, io->pi_sel.pc_bus,
io->pi_sel.pc_dev, io->pi_sel.pc_func);
if (pcidev != NULL)
io->pi_data = device_is_attached(pcidev);
else
error = ENODEV;
break;
case PCIOCLISTVPD:
lvio = (struct pci_list_vpd_io *)data;
/*
* Assume that the user-level bus number is
* in fact the physical PCI bus number.
*/
pcidev = pci_find_dbsf(lvio->plvi_sel.pc_domain,
lvio->plvi_sel.pc_bus, lvio->plvi_sel.pc_dev,
lvio->plvi_sel.pc_func);
if (pcidev == NULL) {
error = ENODEV;
break;
}
error = pci_list_vpd(pcidev, lvio);
break;
default:
error = ENOTTY;
break;
}
return (error);
}