s32 cad_dtmf_init(struct cad_func_tbl_type **func_tbl)
{
u32 i;
s32 rc = CAD_RES_SUCCESS;
struct q6dtmf_session *session = NULL;
static struct cad_func_tbl_type vtable = {
cad_dtmf_open,
cad_dtmf_close,
NULL,
NULL,
cad_dtmf_ioctl
};
memset(&q6_dtmf_data, 0, sizeof(q6_dtmf_data));
for (i = 0; i < CAD_DTMF_SESSION_MAX; i++) {
session = kmalloc(sizeof(*session), GFP_KERNEL);
if (session == NULL) {
pr_err("Could not allocate memory for the session\n");
cad_dtmf_dinit();
rc = CAD_RES_FAILURE;
goto done;
}
memset(session, 0, sizeof(*session));
if (cad_dtmf_session_init(session) != CAD_RES_SUCCESS) {
pr_err("Call to dtmf session init failed\n");
cad_dtmf_dinit();
rc = CAD_RES_FAILURE;
goto done;
}
session->next = q6_dtmf_data.free_session_list;
q6_dtmf_data.free_session_list = session;
}
*func_tbl = &vtable;
done:
return rc;
}
static void __exit cad_exit(void)
{
u8 ref_count;
s32 i = 0;
ref_count = release_ref_count();
if (ref_count == 0) {
D("%s: %s called\n", MODULE_NAME, __func__);
mutex_unlock(&cad.sync);
while (i < CAD_MAX_SESSION)
mutex_unlock(&cad.session_info[i++].sync);
(void)cad_audio_dec_dinit();
(void)cad_audio_enc_dinit();
(void)cad_ard_dinit();
(void)cad_volume_dinit();
(void)cad_dtmf_dinit();
(void)cad_filter_eq_dinit();
iounmap(g_audio_mem);
gpio_free(cad.aux_pcm.dout);
gpio_free(cad.aux_pcm.din);
gpio_free(cad.aux_pcm.syncout);
gpio_free(cad.aux_pcm.clkin_a);
gpio_free(cad.i2s_gpios.sdac_din);
gpio_free(cad.i2s_gpios.sdac_dout);
gpio_free(cad.i2s_gpios.sdac_wsout);
gpio_free(cad.i2s_gpios.cc_i2s_clk);
gpio_free(cad.i2s_gpios.audio_master_clkout);
} else {
pr_err("CAD not De-Initialized as cad_ref_ct = %d\n",
cad_singleton.cad_ref_ct);
}
}
