/*
* ======== strm_create ========
* Purpose:
* Create a STRM manager object.
*/
int strm_create(struct strm_mgr **strm_man,
struct dev_object *dev_obj)
{
struct strm_mgr *strm_mgr_obj;
int status = 0;
*strm_man = NULL;
/* Allocate STRM manager object */
strm_mgr_obj = kzalloc(sizeof(struct strm_mgr), GFP_KERNEL);
if (strm_mgr_obj == NULL)
status = -ENOMEM;
else
strm_mgr_obj->dev_obj = dev_obj;
/* Get Channel manager and Bridge function interface */
if (!status) {
status = dev_get_chnl_mgr(dev_obj, &(strm_mgr_obj->chnl_mgr));
if (!status) {
(void)dev_get_intf_fxns(dev_obj,
&(strm_mgr_obj->intf_fxns));
}
}
if (!status)
*strm_man = strm_mgr_obj;
else
kfree(strm_mgr_obj);
return status;
}
/*
* ======== chnl_create ========
* Purpose:
* Create a channel manager object, responsible for opening new channels
* and closing old ones for a given 'Bridge board.
*/
int chnl_create(OUT struct chnl_mgr **phChnlMgr,
struct dev_object *hdev_obj,
IN CONST struct chnl_mgrattrs *pMgrAttrs)
{
int status;
struct chnl_mgr *hchnl_mgr;
struct chnl_mgr_ *chnl_mgr_obj = NULL;
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(phChnlMgr != NULL);
DBC_REQUIRE(pMgrAttrs != NULL);
*phChnlMgr = NULL;
/* Validate args: */
if ((0 < pMgrAttrs->max_channels) &&
(pMgrAttrs->max_channels <= CHNL_MAXCHANNELS))
status = 0;
else if (pMgrAttrs->max_channels == 0)
status = -EINVAL;
else
status = -ECHRNG;
if (pMgrAttrs->word_size == 0)
status = -EINVAL;
if (DSP_SUCCEEDED(status)) {
status = dev_get_chnl_mgr(hdev_obj, &hchnl_mgr);
if (DSP_SUCCEEDED(status) && hchnl_mgr != NULL)
status = -EEXIST;
}
if (DSP_SUCCEEDED(status)) {
struct bridge_drv_interface *intf_fxns;
dev_get_intf_fxns(hdev_obj, &intf_fxns);
if (intf_fxns) {
/* Let WMD channel module finish the create */
status = (*intf_fxns->pfn_chnl_create)(&hchnl_mgr,
hdev_obj, pMgrAttrs);
}
if (DSP_SUCCEEDED(status)) {
/* Fill in WCD channel module's fields of the
* chnl_mgr structure */
chnl_mgr_obj = (struct chnl_mgr_ *)hchnl_mgr;
chnl_mgr_obj->intf_fxns = intf_fxns;
/* Finally, return the new channel manager handle: */
*phChnlMgr = hchnl_mgr;
}
}
DBC_ENSURE(DSP_FAILED(status) || chnl_mgr_obj);
return status;
}
/*
* ======== chnl_create ========
* Purpose:
* Create a channel manager object, responsible for opening new channels
* and closing old ones for a given 'Bridge board.
*/
int chnl_create(struct chnl_mgr **channel_mgr,
struct dev_object *hdev_obj,
const struct chnl_mgrattrs *mgr_attrts)
{
int status;
struct chnl_mgr *hchnl_mgr;
struct chnl_mgr_ *chnl_mgr_obj = NULL;
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(channel_mgr != NULL);
DBC_REQUIRE(mgr_attrts != NULL);
*channel_mgr = NULL;
/* Validate args: */
if ((0 < mgr_attrts->max_channels) &&
(mgr_attrts->max_channels <= CHNL_MAXCHANNELS))
status = 0;
else if (mgr_attrts->max_channels == 0)
status = -EINVAL;
else
status = -ECHRNG;
if (mgr_attrts->word_size == 0)
status = -EINVAL;
if (!status) {
status = dev_get_chnl_mgr(hdev_obj, &hchnl_mgr);
if (!status && hchnl_mgr != NULL)
status = -EEXIST;
}
if (!status) {
struct bridge_drv_interface *intf_fxns;
dev_get_intf_fxns(hdev_obj, &intf_fxns);
/* Let Bridge channel module finish the create: */
status = (*intf_fxns->pfn_chnl_create) (&hchnl_mgr, hdev_obj,
mgr_attrts);
if (!status) {
/* Fill in DSP API channel module's fields of the
* chnl_mgr structure */
chnl_mgr_obj = (struct chnl_mgr_ *)hchnl_mgr;
chnl_mgr_obj->intf_fxns = intf_fxns;
/* Finally, return the new channel manager handle: */
*channel_mgr = hchnl_mgr;
}
}
DBC_ENSURE(status || chnl_mgr_obj);
return status;
}
int disp_create(struct disp_object **dispatch_obj,
struct dev_object *hdev_obj,
const struct disp_attr *disp_attrs)
{
struct disp_object *disp_obj;
struct bridge_drv_interface *intf_fxns;
u32 ul_chnl_id;
struct chnl_attr chnl_attr_obj;
int status = 0;
u8 dev_type;
*dispatch_obj = NULL;
/* */
disp_obj = kzalloc(sizeof(struct disp_object), GFP_KERNEL);
if (disp_obj == NULL)
status = -ENOMEM;
else
disp_obj->dev_obj = hdev_obj;
/* */
if (!status) {
status = dev_get_chnl_mgr(hdev_obj, &(disp_obj->chnl_mgr));
if (!status) {
(void)dev_get_intf_fxns(hdev_obj, &intf_fxns);
disp_obj->intf_fxns = intf_fxns;
}
}
/*
*/
if (status)
goto func_cont;
status = dev_get_dev_type(hdev_obj, &dev_type);
if (status)
goto func_cont;
if (dev_type != DSP_UNIT) {
status = -EPERM;
goto func_cont;
}
disp_obj->char_size = DSPWORDSIZE;
disp_obj->word_size = DSPWORDSIZE;
disp_obj->data_mau_size = DSPWORDSIZE;
/* */
chnl_attr_obj.uio_reqs = CHNLIOREQS;
chnl_attr_obj.event_obj = NULL;
ul_chnl_id = disp_attrs->chnl_offset + CHNLTORMSOFFSET;
status = (*intf_fxns->chnl_open) (&(disp_obj->chnl_to_dsp),
disp_obj->chnl_mgr,
CHNL_MODETODSP, ul_chnl_id,
&chnl_attr_obj);
if (!status) {
ul_chnl_id = disp_attrs->chnl_offset + CHNLFROMRMSOFFSET;
status =
(*intf_fxns->chnl_open) (&(disp_obj->chnl_from_dsp),
disp_obj->chnl_mgr,
CHNL_MODEFROMDSP, ul_chnl_id,
&chnl_attr_obj);
}
if (!status) {
/* */
disp_obj->bufsize = disp_attrs->chnl_buf_size;
disp_obj->bufsize_rms = RMS_COMMANDBUFSIZE;
disp_obj->buf = kzalloc(disp_obj->bufsize, GFP_KERNEL);
if (disp_obj->buf == NULL)
status = -ENOMEM;
}
func_cont:
if (!status)
*dispatch_obj = disp_obj;
else
delete_disp(disp_obj);
return status;
}
int bridge_io_create(struct io_mgr **io_man,
struct dev_object *hdev_obj,
const struct io_attrs *mgr_attrts)
{
struct io_mgr *pio_mgr = NULL;
struct bridge_dev_context *hbridge_context = NULL;
struct cfg_devnode *dev_node_obj;
struct chnl_mgr *hchnl_mgr;
u8 dev_type;
if (!io_man || !mgr_attrts || mgr_attrts->word_size == 0)
return -EFAULT;
*io_man = NULL;
dev_get_chnl_mgr(hdev_obj, &hchnl_mgr);
if (!hchnl_mgr || hchnl_mgr->iomgr)
return -EFAULT;
dev_get_bridge_context(hdev_obj, &hbridge_context);
if (!hbridge_context)
return -EFAULT;
dev_get_dev_type(hdev_obj, &dev_type);
pio_mgr = kzalloc(sizeof(struct io_mgr), GFP_KERNEL);
if (!pio_mgr)
return -ENOMEM;
pio_mgr->chnl_mgr = hchnl_mgr;
pio_mgr->word_size = mgr_attrts->word_size;
if (dev_type == DSP_UNIT) {
tasklet_init(&pio_mgr->dpc_tasklet, io_dpc, (u32) pio_mgr);
pio_mgr->dpc_req = 0;
pio_mgr->dpc_sched = 0;
spin_lock_init(&pio_mgr->dpc_lock);
if (dev_get_dev_node(hdev_obj, &dev_node_obj)) {
bridge_io_destroy(pio_mgr);
return -EIO;
}
}
pio_mgr->bridge_context = hbridge_context;
pio_mgr->shared_irq = mgr_attrts->irq_shared;
if (dsp_wdt_init()) {
bridge_io_destroy(pio_mgr);
return -EPERM;
}
hchnl_mgr->iomgr = pio_mgr;
*io_man = pio_mgr;
return 0;
}