189 static void write_mailbox(volatile struct ivtv_mailbox __iomem *mbox, int cmd, int args, u32 data[])  in write_mailbox()  argument
193 	write_sync(cmd, &mbox->cmd);  in write_mailbox()
208 			i, readl(&mbdata->mbox[i].cmd), readl(&mbdata->mbox[i].flags));  in clear_all_mailboxes()
214 static int ivtv_api_call(struct ivtv *itv, int cmd, int args, u32 data[])  in ivtv_api_call()  argument
216 	struct ivtv_mailbox_data *mbdata = (cmd >= 128) ? &itv->enc_mbox : &itv->dec_mbox;  in ivtv_api_call()
228 	    cmd < 0 || cmd > 255 || api_info[cmd].name == NULL) {  in ivtv_api_call()
229 		IVTV_ERR("Invalid MB call: cmd = 0x%02x, args = %d\n", cmd, args);  in ivtv_api_call()
233 	if (api_info[cmd].flags & API_HIGH_VOL) {  in ivtv_api_call()
234 	    IVTV_DEBUG_HI_MB("MB Call: %s\n", api_info[cmd].name);  in ivtv_api_call()
237 	    IVTV_DEBUG_MB("MB Call: %s\n", api_info[cmd].name);  in ivtv_api_call()
247 	if (itv->api_cache[cmd].last_jiffies &&  in ivtv_api_call()
249 			itv->api_cache[cmd].last_jiffies +  in ivtv_api_call()
251 	    !memcmp(data, itv->api_cache[cmd].data, sizeof(itv->api_cache[cmd].data))) {  in ivtv_api_call()
252 		itv->api_cache[cmd].last_jiffies = jiffies;  in ivtv_api_call()
256 	flags = api_info[cmd].flags;  in ivtv_api_call()
262 				write_mailbox(&mbdata->mbox[mb], cmd, args, data);  in ivtv_api_call()
267 					api_info[cmd].name, mb, readl(&mbdata->mbox[mb].flags));  in ivtv_api_call()
269 		IVTV_WARN("Could not find free DMA mailbox for %s\n", api_info[cmd].name);  in ivtv_api_call()
279 		IVTV_DEBUG_WARN("No free mailbox found (%s)\n", api_info[cmd].name);  in ivtv_api_call()
284 	write_mailbox(mbox, cmd, args, data);  in ivtv_api_call()
286 		memcpy(itv->api_cache[cmd].data, data, sizeof(itv->api_cache[cmd].data));  in ivtv_api_call()
287 		itv->api_cache[cmd].last_jiffies = jiffies;  in ivtv_api_call()
306 			IVTV_DEBUG_WARN("Could not get result (%s)\n", api_info[cmd].name);  in ivtv_api_call()
319 				api_info[cmd].name,  in ivtv_api_call()
329 int ivtv_api(struct ivtv *itv, int cmd, int args, u32 data[])  in ivtv_api()  argument
331 	int res = ivtv_api_call(itv, cmd, args, data);  in ivtv_api()
336 	return (res == -EBUSY) ? ivtv_api_call(itv, cmd, args, data) : res;  in ivtv_api()
339 int ivtv_api_func(void *priv, u32 cmd, int in, int out, u32 data[CX2341X_MBOX_MAX_DATA])  in ivtv_api_func()  argument
341 	return ivtv_api(priv, cmd, in, data);  in ivtv_api_func()
344 int ivtv_vapi_result(struct ivtv *itv, u32 data[CX2341X_MBOX_MAX_DATA], int cmd, int args, ...)  in ivtv_vapi_result()  argument
354 	return ivtv_api(itv, cmd, args, data);  in ivtv_vapi_result()
357 int ivtv_vapi(struct ivtv *itv, int cmd, int args, ...)  in ivtv_vapi()  argument
368 	return ivtv_api(itv, cmd, args, data);  in ivtv_vapi()