void mq_desblockalloc(void)
{
FAR struct mq_des_block_s *mqdesblock;
/* Allocate a block of message descriptors */
mqdesblock = (FAR struct mq_des_block_s *)kmm_malloc(sizeof(struct mq_des_block_s));
if (mqdesblock)
{
int i;
/* Add the block to the list of allocated blocks (in case
* we ever need to reclaim the memory.
*/
sq_addlast((FAR sq_entry_t*)&mqdesblock->queue, &g_desalloc);
/* Then add each message queue descriptor to the free list */
for (i = 0; i < NUM_MSG_DESCRIPTORS; i++)
{
sq_addlast((FAR sq_entry_t*)&mqdesblock->mqdes[i], &g_desfree);
}
}
}
int kxtj9_driver_init(){
int ret = 0;
if (g_data != NULL)
goto init_done;
g_data = kmm_malloc(sizeof(struct kxtj9_data));
memset(g_data, 0, sizeof(struct kxtj9_data));
g_data->i2c = up_i2cinitialize(CONFIG_SENSOR_KXTJ9_I2C_BUS);
if (!g_data->i2c) {
dbg("failed to init i2c\n");
ret = -ENODEV;
goto init_done;
}
ret = I2C_SETADDRESS(g_data->i2c, KXTJ9_I2C_ADDR, 7);
if (ret) {
dbg("failed to set i2c address\n");
goto init_done;
}
I2C_SETFREQUENCY(g_data->i2c, CONFIG_SENSOR_KXTJ9_I2C_BUS_SPEED);
init_done:
return ret;
}
FAR struct pipe_dev_s *pipecommon_allocdev(size_t bufsize)
{
FAR struct pipe_dev_s *dev;
DEBUGASSERT(bufsize <= CONFIG_DEV_PIPE_MAXSIZE);
/* Allocate a private structure to manage the pipe */
dev = (FAR struct pipe_dev_s *)kmm_malloc(sizeof(struct pipe_dev_s));
if (dev)
{
/* Initialize the private structure */
memset(dev, 0, sizeof(struct pipe_dev_s));
sem_init(&dev->d_bfsem, 0, 1);
sem_init(&dev->d_rdsem, 0, 0);
sem_init(&dev->d_wrsem, 0, 0);
/* The read/write wait semaphores are used for signaling and, hence,
* should not have priority inheritance enabled.
*/
sem_setprotocol(&dev->d_rdsem, SEM_PRIO_NONE);
sem_setprotocol(&dev->d_wrsem, SEM_PRIO_NONE);
dev->d_bufsize = bufsize;
}
return dev;
}
static int proc_dup(FAR const struct file *oldp, FAR struct file *newp)
{
FAR struct proc_file_s *oldfile;
FAR struct proc_file_s *newfile;
fvdbg("Dup %p->%p\n", oldp, newp);
/* Recover our private data from the old struct file instance */
oldfile = (FAR struct proc_file_s *)oldp->f_priv;
DEBUGASSERT(oldfile);
/* Allocate a new container to hold the task and node selection */
newfile = (FAR struct proc_file_s *)kmm_malloc(sizeof(struct proc_file_s));
if (!newfile)
{
fdbg("ERROR: Failed to allocate file container\n");
return -ENOMEM;
}
/* The copy the file information from the old container to the new */
memcpy(newfile, oldfile, sizeof(struct proc_file_s));
/* Save the new container in the new file structure */
newp->f_priv = (FAR void *)newfile;
return OK;
}
int lm75_register(FAR const char *devpath, FAR struct i2c_dev_s *i2c, uint8_t addr)
{
FAR struct lm75_dev_s *priv;
int ret;
/* Initialize the LM-75 device structure */
priv = (FAR struct lm75_dev_s *)kmm_malloc(sizeof(struct lm75_dev_s));
if (!priv)
{
lm75dbg("Failed to allocate instance\n");
return -ENOMEM;
}
priv->i2c = i2c;
priv->addr = addr;
priv->fahrenheit = false;
/* Register the character driver */
ret = register_driver(devpath, &g_lm75fops, 0666, priv);
if (ret < 0)
{
lm75dbg("Failed to register driver: %d\n", ret);
kmm_free(priv);
}
return ret;
}
int mb7040_register(FAR const char *devpath, FAR struct i2c_dev_s *i2c,
uint8_t addr)
{
FAR struct mb7040_dev_s *priv;
int ret;
/* Sanity check */
DEBUGASSERT(i2c != NULL);
/* Initialize the device's structure */
priv = (FAR struct mb7040_dev_s *)kmm_malloc(sizeof(*priv));
if (priv == NULL)
{
sndbg("Failed to allocate instance\n");
return -ENOMEM;
}
priv->i2c = i2c;
priv->addr = addr;
/* Register the character driver */
ret = register_driver(devpath, &g_fops, 0666, priv);
if (ret < 0)
{
sndbg("Failed to register driver: %d\n", ret);
kmm_free(priv);
}
return ret;
}
static int uptime_dup(FAR const struct file *oldp, FAR struct file *newp)
{
FAR struct uptime_file_s *oldattr;
FAR struct uptime_file_s *newattr;
finfo("Dup %p->%p\n", oldp, newp);
/* Recover our private data from the old struct file instance */
oldattr = (FAR struct uptime_file_s *)oldp->f_priv;
DEBUGASSERT(oldattr);
/* Allocate a new container to hold the task and attribute selection */
newattr = (FAR struct uptime_file_s *)kmm_malloc(sizeof(struct uptime_file_s));
if (!newattr)
{
ferr("ERROR: Failed to allocate file attributes\n");
return -ENOMEM;
}
/* The copy the file attributes from the old attributes to the new */
memcpy(newattr, oldattr, sizeof(struct uptime_file_s));
/* Save the new attributes in the new file structure */
newp->f_priv = (FAR void *)newattr;
return OK;
}
static struct mqueue_msg_s *
mq_msgblockalloc(FAR sq_queue_t *queue, uint16_t nmsgs,
uint8_t alloc_type)
{
struct mqueue_msg_s *mqmsgblock;
/* The g_msgfree must be loaded at initialization time to hold the
* configured number of messages.
*/
mqmsgblock = (FAR struct mqueue_msg_s*)
kmm_malloc(sizeof(struct mqueue_msg_s) * nmsgs);
if (mqmsgblock)
{
struct mqueue_msg_s *mqmsg = mqmsgblock;
int i;
for (i = 0; i < nmsgs; i++)
{
mqmsg->type = alloc_type;
sq_addlast((FAR sq_entry_t*)mqmsg++, queue);
}
}
return mqmsgblock;
}
int max6675_register(FAR const char *devpath, FAR struct spi_dev_s *spi)
{
FAR struct max6675_dev_s *priv;
int ret;
/* Sanity check */
DEBUGASSERT(spi != NULL);
/* Initialize the MAX6675 device structure */
priv = (FAR struct max6675_dev_s *)kmm_malloc(sizeof(struct max6675_dev_s));
if (priv == NULL)
{
snerr("ERROR: Failed to allocate instance\n");
return -ENOMEM;
}
priv->spi = spi;
priv->temp = 0;
/* Register the character driver */
ret = register_driver(devpath, &g_max6675fops, 0666, priv);
if (ret < 0)
{
snerr("ERROR: Failed to register driver: %d\n", ret);
kmm_free(priv);
}
return ret;
}
FAR void *group_malloc(FAR struct task_group_s *group, size_t nbytes)
{
/* A NULL group pointer means the current group */
if (!group)
{
FAR struct tcb_s *tcb = this_task();
DEBUGASSERT(tcb && tcb->group);
group = tcb->group;
}
/* Check the group type */
if ((group->tg_flags & GROUP_FLAG_PRIVILEGED) != 0)
{
/* It is a privileged group... use the kernel mode memory allocator */
return kmm_malloc(nbytes);
}
else
{
/* This is an unprivileged group... use the user mode memory
* allocator.
*/
return kumm_malloc(nbytes);
}
}
static int dm320_allocvideomemory(void)
{
#ifndef CONFIG_DM320_VID0_DISABLE
#ifndef CONFIG_DM320_DISABLE_PINGPONG
g_vid0base = (FAR void *)kmm_malloc(2 * DM320_VID0_FBLEN);
g_vid0ppbase = (FAR char *)g_vid0base + DM320_VID0_FBLEN;
#else
g_vid0base = (FAR void *)kmm_malloc(DM320_VID0_FBLEN);
#endif
if (!g_vid0base)
{
goto errout;
}
#endif
#ifndef CONFIG_DM320_VID1_DISABLE
g_vid1base = (FAR void *)kmm_malloc(DM320_VID1_FBLEN);
if (!g_vid1base)
{
goto errout;
}
#endif
#ifndef CONFIG_DM320_OSD0_DISABLE
g_osd0base = (FAR void *)kmm_malloc(DM320_OSD0_FBLEN);
if (!g_osd0base)
{
goto errout;
}
#endif
#ifndef CONFIG_DM320_OSD1_DISABLE
g_osd1base = (FAR void *)kmm_malloc(DM320_OSD1_FBLEN);
if (!g_osd1base)
{
goto errout;
}
#endif
return OK;
errout:
dm320_freevideomemory();
return -ENOMEM;
}
int group_initialize(FAR struct task_tcb_s *tcb)
{
FAR struct task_group_s *group;
#if defined(HAVE_GROUP_MEMBERS) || defined(CONFIG_ARCH_ADDRENV)
irqstate_t flags;
#endif
DEBUGASSERT(tcb && tcb->cmn.group);
group = tcb->cmn.group;
#ifdef HAVE_GROUP_MEMBERS
/* Allocate space to hold GROUP_INITIAL_MEMBERS members of the group */
group->tg_members = (FAR pid_t *)kmm_malloc(GROUP_INITIAL_MEMBERS*sizeof(pid_t));
if (!group->tg_members)
{
kmm_free(group);
return -ENOMEM;
}
/* Assign the PID of this new task as a member of the group. */
group->tg_members[0] = tcb->cmn.pid;
/* Initialize the non-zero elements of group structure and assign it to
* the tcb.
*/
group->tg_mxmembers = GROUP_INITIAL_MEMBERS; /* Number of members in allocation */
#endif
#if defined(HAVE_GROUP_MEMBERS) || defined(CONFIG_ARCH_ADDRENV)
/* Add the initialized entry to the list of groups */
flags = irqsave();
group->flink = g_grouphead;
g_grouphead = group;
irqrestore(flags);
#endif
/* Save the ID of the main task within the group of threads. This needed
* for things like SIGCHILD. It ID is also saved in the TCB of the main
* task but is also retained in the group which may persist after the main
* task has exited.
*/
#if !defined(CONFIG_DISABLE_PTHREAD) && defined(CONFIG_SCHED_HAVE_PARENT)
group->tg_task = tcb->cmn.pid;
#endif
/* Mark that there is one member in the group, the main task */
group->tg_nmembers = 1;
return OK;
}
static inline FAR struct usbhost_state_s *usbhost_allocclass(void)
{
FAR struct usbhost_state_s *priv;
DEBUGASSERT(!up_interrupt_context());
priv = (FAR struct usbhost_state_s *)kmm_malloc(sizeof(struct usbhost_state_s));
uvdbg("Allocated: %p\n", priv);
return priv;
}
static FAR sigpendq_t *sig_allocatependingsignal(void)
{
FAR sigpendq_t *sigpend;
irqstate_t flags;
/* Check if we were called from an interrupt handler. */
if (up_interrupt_context())
{
/* Try to get the pending signal structure from the free list */
sigpend = (FAR sigpendq_t *)sq_remfirst(&g_sigpendingsignal);
if (!sigpend)
{
/* If no pending signal structure is available in the free list,
* then try the special list of structures reserved for
* interrupt handlers
*/
sigpend = (FAR sigpendq_t *)sq_remfirst(&g_sigpendingirqsignal);
}
}
/* If we were not called from an interrupt handler, then we are
* free to allocate pending action structures if necessary.
*/
else
{
/* Try to get the pending signal structure from the free list */
flags = enter_critical_section();
sigpend = (FAR sigpendq_t *)sq_remfirst(&g_sigpendingsignal);
leave_critical_section(flags);
/* Check if we got one. */
if (!sigpend)
{
/* No... Allocate the pending signal */
if (!sigpend)
{
sigpend = (FAR sigpendq_t *)kmm_malloc((sizeof (sigpendq_t)));
}
/* Check if we got an allocated message */
if (sigpend)
{
sigpend->type = SIG_ALLOC_DYN;
}
}
}
return sigpend;
}
FAR struct mqueue_msg_s *mq_msgalloc(void)
{
FAR struct mqueue_msg_s *mqmsg;
irqstate_t flags;
/* If we were called from an interrupt handler, then try to get the message
* from generally available list of messages. If this fails, then try the
* list of messages reserved for interrupt handlers
*/
if (up_interrupt_context())
{
/* Try the general free list */
mqmsg = (FAR struct mqueue_msg_s *)sq_remfirst(&g_msgfree);
if (mqmsg == NULL)
{
/* Try the free list reserved for interrupt handlers */
mqmsg = (FAR struct mqueue_msg_s *)sq_remfirst(&g_msgfreeirq);
}
}
/* We were not called from an interrupt handler. */
else
{
/* Try to get the message from the generally available free list.
* Disable interrupts -- we might be called from an interrupt handler.
*/
flags = enter_critical_section();
mqmsg = (FAR struct mqueue_msg_s *)sq_remfirst(&g_msgfree);
leave_critical_section(flags);
/* If we cannot a message from the free list, then we will have to
* allocate one.
*/
if (mqmsg == NULL)
{
mqmsg = (FAR struct mqueue_msg_s *)
kmm_malloc((sizeof (struct mqueue_msg_s)));
/* Check if we allocated the message */
if (mqmsg != NULL)
{
/* Yes... remember that this message was dynamically allocated */
mqmsg->type = MQ_ALLOC_DYN;
}
}
}
return mqmsg;
}
FAR sigq_t *sig_allocatependingsigaction(void)
{
FAR sigq_t *sigq;
irqstate_t saved_state;
/* Check if we were called from an interrupt handler. */
if (up_interrupt_context())
{
/* Try to get the pending signal action structure from the free list */
sigq = (FAR sigq_t *)sq_remfirst(&g_sigpendingaction);
/* If so, then try the special list of structures reserved for
* interrupt handlers
*/
if (!sigq)
{
sigq = (FAR sigq_t *)sq_remfirst(&g_sigpendingirqaction);
}
}
/* If we were not called from an interrupt handler, then we are
* free to allocate pending signal action structures if necessary. */
else
{
/* Try to get the pending signal action structure from the free list */
saved_state = irqsave();
sigq = (FAR sigq_t *)sq_remfirst(&g_sigpendingaction);
irqrestore(saved_state);
/* Check if we got one. */
if (!sigq)
{
/* No...Try the resource pool */
if (!sigq)
{
sigq = (FAR sigq_t *)kmm_malloc((sizeof (sigq_t)));
}
/* Check if we got an allocated message */
if (sigq)
{
sigq->type = SIG_ALLOC_DYN;
}
}
}
return sigq;
}
static int mtdconfig_getconfig(FAR struct mtdconfig_struct_s *dev,
FAR struct config_data_s *pdata)
{
int ret = -ENOSYS;
off_t offset, bytes_to_read;
struct mtdconfig_header_s hdr;
/* Allocate a temp block buffer */
dev->buffer = (FAR uint8_t *)kmm_malloc(dev->blocksize);
if (dev->buffer == NULL)
{
return -ENOMEM;
}
/* Get the offset of the first entry. This will also check
* the format signature bytes.
*/
offset = mtdconfig_findfirstentry(dev, &hdr);
offset = mtdconfig_findentry(dev, offset, pdata, &hdr);
/* Test if the header was found. */
if (offset > 0 && (pdata->id == hdr.id && pdata->instance == hdr.instance))
{
/* Entry found. Read the data */
bytes_to_read = hdr.len;
if (bytes_to_read > pdata->len)
{
bytes_to_read = pdata->len;
}
/* Perform the read */
ret = mtdconfig_readbytes(dev, offset + sizeof(hdr), pdata->configdata,
bytes_to_read);
if (ret != OK)
{
/* Error reading the data */
ret = -EIO;
goto errout;
}
ret = OK;
}
errout:
/* Free the buffer */
kmm_free(dev->buffer);
return ret;
}
int usbdev_apbinitialize(struct apbridge_usb_driver *driver)
{
struct apbridge_alloc_s *alloc;
struct apbridge_dev_s *priv;
struct apbridge_driver_s *drvr;
int ret;
/* Allocate the structures needed */
alloc = (struct apbridge_alloc_s *)
kmm_malloc(sizeof(struct apbridge_alloc_s));
if (!alloc) {
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_ALLOCDEVSTRUCT), 0);
return -ENOMEM;
}
/* Convenience pointers into the allocated blob */
priv = &alloc->dev;
drvr = &alloc->drvr;
/* Initialize the USB driver structure */
memset(priv, 0, sizeof(struct apbridge_dev_s));
priv->driver = driver;
/* Initialize the USB class driver structure */
drvr->drvr.speed = USB_SPEED_HIGH;
drvr->drvr.ops = &g_driverops;
drvr->dev = priv;
/* Register the USB serial class driver */
ret = usbdev_register(&drvr->drvr);
if (ret) {
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_DEVREGISTER),
(uint16_t) - ret);
goto errout_with_alloc;
}
ret = priv->driver->init(priv);
if (ret)
goto errout_with_init;
/* Register the single port supported by this implementation */
return OK;
errout_with_init:
usbdev_unregister(&drvr->drvr);
errout_with_alloc:
kmm_free(alloc);
return ret;
}
int foreach_inode(foreach_inode_t handler, FAR void *arg)
{
#ifdef ENUM_INODE_ALLOC
FAR struct inode_path_s *info;
int ret;
/* Allocate the mountpoint info structure */
info = (FAR struct inode_path_s *)kmm_malloc(sizeof(struct inode_path_s));
if (!info)
{
return -ENOMEM;
}
/* Initialize the info structure */
info->handler = handler;
info->arg = arg;
info->path[0] = '\0';
/* Start the recursion at the root inode */
inode_semtake();
ret = foreach_inodelevel(root_inode, info);
inode_semgive();
/* Free the info structure and return the result */
kmm_free(info);
return ret;
#else
struct inode_path_s info;
int ret;
/* Initialize the info structure */
info.handler = handler;
info.arg = arg;
info.path[0] = '\0';
/* Start the recursion at the root inode */
inode_semtake();
ret = foreach_inodelevel(root_inode, &info);
inode_semgive();
return ret;
#endif
}
FAR struct mqueue_msg_s *mq_msgalloc(void)
{
FAR struct mqueue_msg_s *mqmsg;
irqstate_t saved_state;
/* If we were called from an interrupt handler, then try to get the message
* from generally available list of messages. If this fails, then try the
* list of messages reserved for interrupt handlers
*/
if (up_interrupt_context())
{
/* Try the general free list */
mqmsg = (FAR struct mqueue_msg_s *)sq_remfirst(&g_msgfree);
if (!mqmsg)
{
/* Try the free list reserved for interrupt handlers */
mqmsg = (FAR struct mqueue_msg_s *)sq_remfirst(&g_msgfreeirq);
}
}
/* We were not called from an interrupt handler. */
else
{
/* Try to get the message from the generally available free list.
* Disable interrupts -- we might be called from an interrupt handler.
*/
saved_state = irqsave();
mqmsg = (FAR struct mqueue_msg_s *)sq_remfirst(&g_msgfree);
irqrestore(saved_state);
/* If we cannot a message from the free list, then we will have to allocate one. */
if (!mqmsg)
{
mqmsg = (FAR struct mqueue_msg_s *)kmm_malloc((sizeof (struct mqueue_msg_s)));
/* Check if we got an allocated message */
ASSERT(mqmsg);
mqmsg->type = MQ_ALLOC_DYN;
}
}
return mqmsg;
}
int romdisk_register(int minor, uint8_t *buffer, uint32_t nsectors,
uint16_t sectsize)
#endif
{
struct rd_struct_s *dev;
char devname[16];
int ret = -ENOMEM;
fvdbg("buffer: %p nsectors: %d sectsize: %d\n", buffer, nsectors, sectsize);
/* Sanity check */
#ifdef CONFIG_DEBUG
if (minor < 0 || minor > 255 || !buffer || !nsectors || !sectsize)
{
return -EINVAL;
}
#endif
/* Allocate a ramdisk device structure */
dev = (struct rd_struct_s *)kmm_malloc(sizeof(struct rd_struct_s));
if (dev)
{
/* Initialize the ramdisk device structure */
dev->rd_nsectors = nsectors; /* Number of sectors on device */
dev->rd_sectsize = sectsize; /* The size of one sector */
#ifdef CONFIG_FS_WRITABLE
dev->rd_writeenabled = writeenabled; /* true: can write to ram disk */
#endif
dev->rd_buffer = buffer; /* RAM disk backup memory */
/* Create a ramdisk device name */
snprintf(devname, 16, "/dev/ram%d", minor);
/* Inode private data is a reference to the ramdisk device structure */
ret = register_blockdriver(devname, &g_bops, 0, dev);
if (ret < 0)
{
fdbg("register_blockdriver failed: %d\n", -ret);
kmm_free(dev);
}
}
return ret;
}
static struct posix_timer_s *timer_allocate(void)
{
FAR struct posix_timer_s *ret;
irqstate_t flags;
uint8_t pt_flags;
/* Try to get a preallocated timer from the free list */
#if CONFIG_PREALLOC_TIMERS > 0
flags = irqsave();
ret = (FAR struct posix_timer_s *)sq_remfirst((FAR sq_queue_t *)&g_freetimers);
irqrestore(flags);
/* Did we get one? */
if (ret)
{
pt_flags = PT_FLAGS_PREALLOCATED;
}
else
#endif
{
/* Allocate a new timer from the heap */
ret = (FAR struct posix_timer_s *)kmm_malloc(sizeof(struct posix_timer_s));
pt_flags = 0;
}
/* If we have a timer, then put it into the allocated timer list */
if (ret)
{
/* Initialize the timer structure */
memset(ret, 0, sizeof(struct posix_timer_s));
ret->pt_flags = pt_flags;
/* And add it to the end of the list of allocated timers */
flags = irqsave();
sq_addlast((FAR sq_entry_t *)ret, (FAR sq_queue_t *)&g_alloctimers);
irqrestore(flags);
}
return ret;
}
int mod_loadshdrs(FAR struct mod_loadinfo_s *loadinfo)
{
size_t shdrsize;
int ret;
DEBUGASSERT(loadinfo->shdr == NULL);
/* Verify that there are sections */
if (loadinfo->ehdr.e_shnum < 1)
{
serr("ERROR: No sections(?)\n");
return -EINVAL;
}
/* Get the total size of the section header table */
shdrsize = (size_t)loadinfo->ehdr.e_shentsize * (size_t)loadinfo->ehdr.e_shnum;
if (loadinfo->ehdr.e_shoff + shdrsize > loadinfo->filelen)
{
serr("ERROR: Insufficent space in file for section header table\n");
return -ESPIPE;
}
/* Allocate memory to hold a working copy of the sector header table */
loadinfo->shdr = (FAR FAR Elf32_Shdr *)kmm_malloc(shdrsize);
if (!loadinfo->shdr)
{
serr("ERROR: Failed to allocate the section header table. Size: %ld\n",
(long)shdrsize);
return -ENOMEM;
}
/* Read the section header table into memory */
ret = mod_read(loadinfo, (FAR uint8_t *)loadinfo->shdr, shdrsize,
loadinfo->ehdr.e_shoff);
if (ret < 0)
{
serr("ERROR: Failed to read section header table: %d\n", ret);
}
return ret;
}
FAR struct pipe_dev_s *pipecommon_allocdev(void)
{
struct pipe_dev_s *dev;
/* Allocate a private structure to manage the pipe */
dev = (struct pipe_dev_s *)kmm_malloc(sizeof(struct pipe_dev_s));
if (dev)
{
/* Initialize the private structure */
memset(dev, 0, sizeof(struct pipe_dev_s));
sem_init(&dev->d_bfsem, 0, 1);
sem_init(&dev->d_rdsem, 0, 0);
sem_init(&dev->d_wrsem, 0, 0);
}
return dev;
}
int usbmsc_archinitialize(void)
{
uint8_t *pbuffer;
int ret;
pbuffer = (uint8_t *)kmm_malloc(BUFFER_SIZE);
if (!pbuffer)
{
lowsyslog(LOG_ERR, "ERROR: Failed to allocate ramdisk of size %d\n",
BUFFER_SIZE);
return -ENOMEM;
}
/* Register a RAMDISK device to manage this RAM image */
ret = ramdisk_register(CONFIG_SYSTEM_USBMSC_DEVMINOR1,
pbuffer,
USBMSC_NSECTORS,
USBMSC_SECTORSIZE,
RDFLAG_WRENABLED | RDFLAG_FUNLINK);
if (ret < 0)
{
syslog(LOG_ERR,
"ERROR: create_ramdisk: Failed to register ramdisk at %s: %d\n",
g_source, -ret);
kmm_free(pbuffer);
return ret;
}
/* Create a FAT filesystem on the ramdisk */
ret = mkfatfs(g_source, &g_fmt);
if (ret < 0)
{
syslog(LOG_ERR,
"ERROR: create_ramdisk: Failed to create FAT filesystem on ramdisk at %s\n",
g_source);
/* kmm_free(pbuffer); -- RAM disk is registered */
return ret;
}
return 0;
}
int elf_allocbuffer(FAR struct elf_loadinfo_s *loadinfo)
{
/* Has a buffer been allocated> */
if (!loadinfo->iobuffer)
{
/* No.. allocate one now */
loadinfo->iobuffer = (FAR uint8_t *)kmm_malloc(CONFIG_ELF_BUFFERSIZE);
if (!loadinfo->iobuffer)
{
bdbg("Failed to allocate an I/O buffer\n");
return -ENOMEM;
}
loadinfo->buflen = CONFIG_ELF_BUFFERSIZE;
}
return OK;
}
int mtdconfig_register(FAR struct mtd_dev_s *mtd)
{
int ret = OK;
struct mtdconfig_struct_s *dev;
struct mtd_geometry_s geo; /* Device geometry */
dev = (struct mtdconfig_struct_s *)kmm_malloc(sizeof(struct mtdconfig_struct_s));
if (dev)
{
/* Initialize the mtdconfig device structure */
dev->mtd = mtd;
sem_init(&dev->exclsem, 0, 1);
/* Get the device geometry. (casting to uintptr_t first eliminates
* complaints on some architectures where the sizeof long is different
* from the size of a pointer).
*/
ret = MTD_IOCTL(mtd, MTDIOC_GEOMETRY, (unsigned long)((uintptr_t)&geo));
if (ret < 0)
{
fdbg("MTD ioctl(MTDIOC_GEOMETRY) failed: %d\n", ret);
kmm_free(dev);
goto errout;
}
dev->blocksize = geo.blocksize;
dev->neraseblocks = geo.neraseblocks;
dev->erasesize = geo.erasesize;
dev->nblocks = geo.neraseblocks * geo.erasesize / geo.blocksize;
(void)register_driver("/dev/config", &mtdconfig_fops, 0666, dev);
}
errout:
return ret;
}
int lm75_register(FAR const char *devpath, FAR struct i2c_dev_s *i2c, uint8_t addr)
{
FAR struct lm75_dev_s *priv;
int ret;
/* Sanity check */
DEBUGASSERT(i2c != NULL);
DEBUGASSERT(addr == CONFIG_LM75_ADDR0 || addr == CONFIG_LM75_ADDR1 ||
addr == CONFIG_LM75_ADDR2 || addr == CONFIG_LM75_ADDR3 ||
addr == CONFIG_LM75_ADDR4 || addr == CONFIG_LM75_ADDR5 ||
addr == CONFIG_LM75_ADDR6 || addr == CONFIG_LM75_ADDR7);
/* Initialize the LM-75 device structure */
priv = (FAR struct lm75_dev_s *)kmm_malloc(sizeof(struct lm75_dev_s));
if (priv == NULL)
{
sndbg("Failed to allocate instance\n");
return -ENOMEM;
}
priv->i2c = i2c;
priv->addr = addr;
priv->fahrenheit = false;
/* Register the character driver */
ret = register_driver(devpath, &g_lm75fops, 0666, priv);
if (ret < 0)
{
sndbg("Failed to register driver: %d\n", ret);
kmm_free(priv);
}
return ret;
}
int up_create_stack(struct tcb_s *tcb, size_t stack_size, uint8_t ttype)
{
uint32_t *stack_alloc_ptr;
int ret = ERROR;
size_t *adj_stack_ptr;
/* Move up to next even word boundary if necessary */
size_t adj_stack_size = (stack_size + 3) & ~3;
size_t adj_stack_words = adj_stack_size >> 2;
/* Allocate the memory for the stack */
#if defined(CONFIG_BUILD_KERNEL) && defined(CONFIG_MM_KERNEL_HEAP)
/* Use the kernel allocator if this is a kernel thread */
if (ttype == TCB_FLAG_TTYPE_KERNEL) {
stack_alloc_ptr = (uint32_t *)kmm_malloc(stack_size);
} else
#endif
{
stack_alloc_ptr = (uint32_t*)kumm_malloc(adj_stack_size);
}
if (stack_alloc_ptr) {
/* This is the address of the last word in the allocation */
adj_stack_ptr = &stack_alloc_ptr[adj_stack_words - 1];
/* Save the values in the TCB */
tcb->adj_stack_size = adj_stack_size;
tcb->stack_alloc_ptr = stack_alloc_ptr;
tcb->adj_stack_ptr = (void *)((unsigned int)adj_stack_ptr & ~7);
ret = OK;
}
return ret;
}
int pca9635pw_register(FAR const char *devpath, FAR struct i2c_dev_s *i2c,
uint8_t const pca9635pw_i2c_addr)
{
/* Sanity check */
DEBUGASSERT(i2c != NULL);
/* Initialize the PCA9635PW device structure */
FAR struct pca9635pw_dev_s *priv =
(FAR struct pca9635pw_dev_s *)kmm_malloc(sizeof(struct pca9635pw_dev_s));
if (priv == NULL)
{
dbg("Failed to allocate instance of pca9635pw_dev_s\n");
return -ENOMEM;
}
priv->i2c = i2c;
priv->i2c_addr = pca9635pw_i2c_addr;
/* Register the character driver */
int const ret = register_driver(devpath, &g_pca9635pw_fileops, 666, priv);
if (ret != OK)
{
dbg("Failed to register driver: %d\n", ret);
kmm_free(priv);
return ret;
}
/* setup i2c frequency */
I2C_SETFREQUENCY(priv->i2c, I2C_BUS_FREQ_HZ);
return OK;
}