47 static int cx25821_sram_channel_setup_upstream_audio(struct cx25821_dev *dev,  in cx25821_sram_channel_setup_upstream_audio()  argument
102 static __le32 *cx25821_risc_field_upstream_audio(struct cx25821_dev *dev,  in cx25821_risc_field_upstream_audio()  argument
110 		dev->channels[dev->_audio_upstream_channel].sram_channels;  in cx25821_risc_field_upstream_audio()
136 static int cx25821_risc_buffer_upstream_audio(struct cx25821_dev *dev,  in cx25821_risc_buffer_upstream_audio()  argument
149 	rp = dev->_risc_virt_addr;  in cx25821_risc_buffer_upstream_audio()
168 			    dev->_risc_phys_start_addr +  in cx25821_risc_buffer_upstream_audio()
172 			    dev->_risc_phys_start_addr +  in cx25821_risc_buffer_upstream_audio()
177 		rp = cx25821_risc_field_upstream_audio(dev, rp,  in cx25821_risc_buffer_upstream_audio()
178 				dev->_audiodata_buf_phys_addr + databuf_offset,  in cx25821_risc_buffer_upstream_audio()
193 		rp = dev->_risc_virt_addr + RISC_SYNC_INSTRUCTION_SIZE / 4 +  in cx25821_risc_buffer_upstream_audio()
200 static void cx25821_free_memory_audio(struct cx25821_dev *dev)  in cx25821_free_memory_audio()  argument
202 	if (dev->_risc_virt_addr) {  in cx25821_free_memory_audio()
203 		pci_free_consistent(dev->pci, dev->_audiorisc_size,  in cx25821_free_memory_audio()
204 				    dev->_risc_virt_addr, dev->_risc_phys_addr);  in cx25821_free_memory_audio()
205 		dev->_risc_virt_addr = NULL;  in cx25821_free_memory_audio()
208 	if (dev->_audiodata_buf_virt_addr) {  in cx25821_free_memory_audio()
209 		pci_free_consistent(dev->pci, dev->_audiodata_buf_size,  in cx25821_free_memory_audio()
210 				    dev->_audiodata_buf_virt_addr,  in cx25821_free_memory_audio()
211 				    dev->_audiodata_buf_phys_addr);  in cx25821_free_memory_audio()
212 		dev->_audiodata_buf_virt_addr = NULL;  in cx25821_free_memory_audio()
216 void cx25821_stop_upstream_audio(struct cx25821_dev *dev)  in cx25821_stop_upstream_audio()  argument
219 		dev->channels[AUDIO_UPSTREAM_SRAM_CHANNEL_B].sram_channels;  in cx25821_stop_upstream_audio()
222 	if (!dev->_audio_is_running) {  in cx25821_stop_upstream_audio()
236 	if (dev->_audiodata_buf_virt_addr)  in cx25821_stop_upstream_audio()
237 		memset(dev->_audiodata_buf_virt_addr, 0,  in cx25821_stop_upstream_audio()
238 		       dev->_audiodata_buf_size);  in cx25821_stop_upstream_audio()
240 	dev->_audio_is_running = 0;  in cx25821_stop_upstream_audio()
241 	dev->_is_first_audio_frame = 0;  in cx25821_stop_upstream_audio()
242 	dev->_audioframe_count = 0;  in cx25821_stop_upstream_audio()
243 	dev->_audiofile_status = END_OF_FILE;  in cx25821_stop_upstream_audio()
245 	kfree(dev->_irq_audio_queues);  in cx25821_stop_upstream_audio()
246 	dev->_irq_audio_queues = NULL;  in cx25821_stop_upstream_audio()
248 	kfree(dev->_audiofilename);  in cx25821_stop_upstream_audio()
251 void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev)  in cx25821_free_mem_upstream_audio()  argument
253 	if (dev->_audio_is_running)  in cx25821_free_mem_upstream_audio()
254 		cx25821_stop_upstream_audio(dev);  in cx25821_free_mem_upstream_audio()
256 	cx25821_free_memory_audio(dev);  in cx25821_free_mem_upstream_audio()
259 static int cx25821_get_audio_data(struct cx25821_dev *dev,  in cx25821_get_audio_data()  argument
263 	int frame_index_temp = dev->_audioframe_index;  in cx25821_get_audio_data()
268 	loff_t file_offset = dev->_audioframe_count * frame_size;  in cx25821_get_audio_data()
271 	if (dev->_audiofile_status == END_OF_FILE)  in cx25821_get_audio_data()
274 	file = filp_open(dev->_audiofilename, O_RDONLY | O_LARGEFILE, 0);  in cx25821_get_audio_data()
277 		       __func__, dev->_audiofilename, -PTR_ERR(file));  in cx25821_get_audio_data()
281 	if (dev->_audiodata_buf_virt_addr)  in cx25821_get_audio_data()
282 		p = (char *)dev->_audiodata_buf_virt_addr + frame_offset;  in cx25821_get_audio_data()
284 	for (i = 0; i < dev->_audio_lines_count; i++) {  in cx25821_get_audio_data()
289 			dev->_audiofile_status = END_OF_FILE;  in cx25821_get_audio_data()
293 		dev->_audiofile_status = IN_PROGRESS;  in cx25821_get_audio_data()
300 	dev->_audioframe_count++;  in cx25821_get_audio_data()
308 	struct cx25821_dev *dev = container_of(work, struct cx25821_dev,  in cx25821_audioups_handler()  local
311 	if (!dev) {  in cx25821_audioups_handler()
317 	cx25821_get_audio_data(dev, dev->channels[dev->_audio_upstream_channel].  in cx25821_audioups_handler()
321 static int cx25821_openfile_audio(struct cx25821_dev *dev,  in cx25821_openfile_audio()  argument
324 	char *p = (void *)dev->_audiodata_buf_virt_addr;  in cx25821_openfile_audio()
329 	file = filp_open(dev->_audiofilename, O_RDONLY | O_LARGEFILE, 0);  in cx25821_openfile_audio()
332 			__func__, dev->_audiofilename, PTR_ERR(file));  in cx25821_openfile_audio()
337 		for (i = 0; i < dev->_audio_lines_count; i++) {  in cx25821_openfile_audio()
345 				dev->_audiofile_status = END_OF_FILE;  in cx25821_openfile_audio()
355 		dev->_audioframe_count++;  in cx25821_openfile_audio()
357 	dev->_audiofile_status = IN_PROGRESS;  in cx25821_openfile_audio()
362 static int cx25821_audio_upstream_buffer_prepare(struct cx25821_dev *dev,  in cx25821_audio_upstream_buffer_prepare()  argument
370 	cx25821_free_memory_audio(dev);  in cx25821_audio_upstream_buffer_prepare()
372 	dev->_risc_virt_addr = pci_alloc_consistent(dev->pci,  in cx25821_audio_upstream_buffer_prepare()
373 			dev->audio_upstream_riscbuf_size, &dma_addr);  in cx25821_audio_upstream_buffer_prepare()
374 	dev->_risc_virt_start_addr = dev->_risc_virt_addr;  in cx25821_audio_upstream_buffer_prepare()
375 	dev->_risc_phys_start_addr = dma_addr;  in cx25821_audio_upstream_buffer_prepare()
376 	dev->_risc_phys_addr = dma_addr;  in cx25821_audio_upstream_buffer_prepare()
377 	dev->_audiorisc_size = dev->audio_upstream_riscbuf_size;  in cx25821_audio_upstream_buffer_prepare()
379 	if (!dev->_risc_virt_addr) {  in cx25821_audio_upstream_buffer_prepare()
385 	memset(dev->_risc_virt_addr, 0, dev->_audiorisc_size);  in cx25821_audio_upstream_buffer_prepare()
388 	dev->_audiodata_buf_virt_addr = pci_alloc_consistent(dev->pci,  in cx25821_audio_upstream_buffer_prepare()
389 			dev->audio_upstream_databuf_size, &data_dma_addr);  in cx25821_audio_upstream_buffer_prepare()
390 	dev->_audiodata_buf_phys_addr = data_dma_addr;  in cx25821_audio_upstream_buffer_prepare()
391 	dev->_audiodata_buf_size = dev->audio_upstream_databuf_size;  in cx25821_audio_upstream_buffer_prepare()
393 	if (!dev->_audiodata_buf_virt_addr) {  in cx25821_audio_upstream_buffer_prepare()
399 	memset(dev->_audiodata_buf_virt_addr, 0, dev->_audiodata_buf_size);  in cx25821_audio_upstream_buffer_prepare()
401 	ret = cx25821_openfile_audio(dev, sram_ch);  in cx25821_audio_upstream_buffer_prepare()
406 	ret = cx25821_risc_buffer_upstream_audio(dev, dev->pci, bpl,  in cx25821_audio_upstream_buffer_prepare()
407 						dev->_audio_lines_count);  in cx25821_audio_upstream_buffer_prepare()
420 static int cx25821_audio_upstream_irq(struct cx25821_dev *dev, int chan_num,  in cx25821_audio_upstream_irq()  argument
425 	const struct sram_channel *channel = dev->channels[chan_num].sram_channels;  in cx25821_audio_upstream_irq()
438 		spin_lock(&dev->slock);  in cx25821_audio_upstream_irq()
440 		while (prog_cnt != dev->_last_index_irq) {  in cx25821_audio_upstream_irq()
442 			if (dev->_last_index_irq < (NUMBER_OF_PROGRAMS - 1))  in cx25821_audio_upstream_irq()
443 				dev->_last_index_irq++;  in cx25821_audio_upstream_irq()
445 				dev->_last_index_irq = 0;  in cx25821_audio_upstream_irq()
447 			dev->_audioframe_index = dev->_last_index_irq;  in cx25821_audio_upstream_irq()
449 			queue_work(dev->_irq_audio_queues,  in cx25821_audio_upstream_irq()
450 				   &dev->_audio_work_entry);  in cx25821_audio_upstream_irq()
453 		if (dev->_is_first_audio_frame) {  in cx25821_audio_upstream_irq()
454 			dev->_is_first_audio_frame = 0;  in cx25821_audio_upstream_irq()
456 			if (dev->_risc_virt_start_addr != NULL) {  in cx25821_audio_upstream_irq()
458 					dev->_risc_phys_start_addr +  in cx25821_audio_upstream_irq()
462 				rp = cx25821_risc_field_upstream_audio(dev,  in cx25821_audio_upstream_irq()
463 						dev->_risc_virt_start_addr + 1,  in cx25821_audio_upstream_irq()
464 						dev->_audiodata_buf_phys_addr,  in cx25821_audio_upstream_irq()
481 		spin_unlock(&dev->slock);  in cx25821_audio_upstream_irq()
500 	if (dev->_audiofile_status == END_OF_FILE) {  in cx25821_audio_upstream_irq()
502 			dev->_audioframe_count);  in cx25821_audio_upstream_irq()
514 	struct cx25821_dev *dev = dev_id;  in cx25821_upstream_irq_audio()  local
519 	if (!dev)  in cx25821_upstream_irq_audio()
522 	sram_ch = dev->channels[dev->_audio_upstream_channel].sram_channels;  in cx25821_upstream_irq_audio()
528 		handled = cx25821_audio_upstream_irq(dev,  in cx25821_upstream_irq_audio()
529 				dev->_audio_upstream_channel, audio_status);  in cx25821_upstream_irq_audio()
533 		cx25821_stop_upstream_audio(dev);  in cx25821_upstream_irq_audio()
540 static void cx25821_wait_fifo_enable(struct cx25821_dev *dev,  in cx25821_wait_fifo_enable()  argument
564 static int cx25821_start_audio_dma_upstream(struct cx25821_dev *dev,  in cx25821_start_audio_dma_upstream()  argument
572 	cx_write(sram_ch->cmds_start + 0, dev->_risc_phys_addr);  in cx25821_start_audio_dma_upstream()
602 	err = request_irq(dev->pci->irq, cx25821_upstream_irq_audio,  in cx25821_start_audio_dma_upstream()
603 			IRQF_SHARED, dev->name, dev);  in cx25821_start_audio_dma_upstream()
605 		pr_err("%s: can't get upstream IRQ %d\n", dev->name,  in cx25821_start_audio_dma_upstream()
606 				dev->pci->irq);  in cx25821_start_audio_dma_upstream()
614 	dev->_audio_is_running = 1;  in cx25821_start_audio_dma_upstream()
615 	dev->_is_first_audio_frame = 1;  in cx25821_start_audio_dma_upstream()
618 	cx25821_wait_fifo_enable(dev, sram_ch);  in cx25821_start_audio_dma_upstream()
623 	cx25821_dev_unregister(dev);  in cx25821_start_audio_dma_upstream()
627 int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)  in cx25821_audio_upstream_init()  argument
632 	if (dev->_audio_is_running) {  in cx25821_audio_upstream_init()
637 	dev->_audio_upstream_channel = channel_select;  in cx25821_audio_upstream_init()
638 	sram_ch = dev->channels[channel_select].sram_channels;  in cx25821_audio_upstream_init()
641 	INIT_WORK(&dev->_audio_work_entry, cx25821_audioups_handler);  in cx25821_audio_upstream_init()
642 	dev->_irq_audio_queues =  in cx25821_audio_upstream_init()
645 	if (!dev->_irq_audio_queues) {  in cx25821_audio_upstream_init()
651 	dev->_last_index_irq = 0;  in cx25821_audio_upstream_init()
652 	dev->_audio_is_running = 0;  in cx25821_audio_upstream_init()
653 	dev->_audioframe_count = 0;  in cx25821_audio_upstream_init()
654 	dev->_audiofile_status = RESET_STATUS;  in cx25821_audio_upstream_init()
655 	dev->_audio_lines_count = LINES_PER_AUDIO_BUFFER;  in cx25821_audio_upstream_init()
658 	if ((dev->input_audiofilename) &&  in cx25821_audio_upstream_init()
659 	    (strcmp(dev->input_audiofilename, "") != 0))  in cx25821_audio_upstream_init()
660 		dev->_audiofilename = kstrdup(dev->input_audiofilename,  in cx25821_audio_upstream_init()
663 		dev->_audiofilename = kstrdup(_defaultAudioName,  in cx25821_audio_upstream_init()
666 	if (!dev->_audiofilename) {  in cx25821_audio_upstream_init()
671 	cx25821_sram_channel_setup_upstream_audio(dev, sram_ch,  in cx25821_audio_upstream_init()
674 	dev->audio_upstream_riscbuf_size =  in cx25821_audio_upstream_init()
677 	dev->audio_upstream_databuf_size = AUDIO_DATA_BUF_SZ * NUM_AUDIO_PROGS;  in cx25821_audio_upstream_init()
680 	err = cx25821_audio_upstream_buffer_prepare(dev, sram_ch,  in cx25821_audio_upstream_init()
684 			dev->name);  in cx25821_audio_upstream_init()
688 	cx25821_start_audio_dma_upstream(dev, sram_ch);  in cx25821_audio_upstream_init()
693 	cx25821_dev_unregister(dev);  in cx25821_audio_upstream_init()