struct us_client *q6usm_us_client_alloc(
void (*cb)(uint32_t, uint32_t, uint32_t *, void *),
void *priv)
{
struct us_client *usc;
int n;
int lcnt = 0;
usc = kzalloc(sizeof(struct us_client), GFP_KERNEL);
if (usc == NULL)
return NULL;
n = q6usm_session_alloc(usc);
if (n <= 0)
goto fail_session;
usc->session = n;
usc->cb = cb;
usc->priv = priv;
usc->apr = apr_register("ADSP", "USM", \
(apr_fn)q6usm_callback,\
((usc->session) << 8 | 0x0001),\
usc);
if (usc->apr == NULL) {
pr_err("%s: Registration with APR failed\n", __func__);
goto fail;
}
pr_debug("%s: Registering the common port with APR\n", __func__);
if (atomic_read(&this_mmap.ref_cnt) == 0) {
this_mmap.apr = apr_register("ADSP", "USM",
(apr_fn)q6usm_mmapcallback,
0x0FFFFFFFF, &this_mmap);
if (this_mmap.apr == NULL) {
pr_err("%s: USM port registration failed\n",
__func__);
goto fail;
}
}
atomic_inc(&this_mmap.ref_cnt);
init_waitqueue_head(&usc->cmd_wait);
mutex_init(&usc->cmd_lock);
for (lcnt = 0; lcnt <= OUT; ++lcnt) {
mutex_init(&usc->port[lcnt].lock);
spin_lock_init(&usc->port[lcnt].dsp_lock);
}
atomic_set(&usc->cmd_state, 0);
return usc;
fail:
q6usm_us_client_free(usc);
return NULL;
fail_session:
kfree(usc);
return NULL;
}
static void release_xx(struct usf_xx_type *usf_xx)
{
if (usf_xx != NULL) {
if (usf_xx->usc) {
q6usm_us_client_free(usf_xx->usc);
usf_xx->usc = NULL;
}
if (usf_xx->encdec_cfg.params != NULL) {
kfree(usf_xx->encdec_cfg.params);
usf_xx->encdec_cfg.params = NULL;
}
}
}