int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
{
struct sram_channel *sram_ch;
int err = 0;
if (dev->_audio_is_running) {
pr_warn("Audio Channel is still running so return!\n");
return 0;
}
dev->_audio_upstream_channel = channel_select;
sram_ch = dev->channels[channel_select].sram_channels;
/* Work queue */
INIT_WORK(&dev->_audio_work_entry, cx25821_audioups_handler);
dev->_irq_audio_queues =
create_singlethread_workqueue("cx25821_audioworkqueue");
if (!dev->_irq_audio_queues) {
printk(KERN_DEBUG
pr_fmt("ERROR: create_singlethread_workqueue() for Audio FAILED!\n"));
return -ENOMEM;
}
dev->_last_index_irq = 0;
dev->_audio_is_running = 0;
dev->_audioframe_count = 0;
dev->_audiofile_status = RESET_STATUS;
dev->_audio_lines_count = LINES_PER_AUDIO_BUFFER;
_line_size = AUDIO_LINE_SIZE;
if (dev->input_audiofilename) {
dev->_audiofilename = kstrdup(dev->input_audiofilename,
GFP_KERNEL);
if (!dev->_audiofilename) {
err = -ENOMEM;
goto error;
}
/* Default if filename is empty string */
if (strcmp(dev->input_audiofilename, "") == 0)
dev->_audiofilename = "/root/audioGOOD.wav";
} else {
dev->_audiofilename = kstrdup(_defaultAudioName,
GFP_KERNEL);
if (!dev->_audiofilename) {
err = -ENOMEM;
goto error;
}
}
cx25821_sram_channel_setup_upstream_audio(dev, sram_ch,
_line_size, 0);
dev->audio_upstream_riscbuf_size =
AUDIO_RISC_DMA_BUF_SIZE * NUM_AUDIO_PROGS +
RISC_SYNC_INSTRUCTION_SIZE;
dev->audio_upstream_databuf_size = AUDIO_DATA_BUF_SZ * NUM_AUDIO_PROGS;
/* Allocating buffers and prepare RISC program */
err = cx25821_audio_upstream_buffer_prepare(dev, sram_ch,
_line_size);
if (err < 0) {
pr_err("%s: Failed to set up Audio upstream buffers!\n",
dev->name);
goto error;
}
/* Start RISC engine */
cx25821_start_audio_dma_upstream(dev, sram_ch);
return 0;
error:
cx25821_dev_unregister(dev);
return err;
}
int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
{
struct sram_channel *sram_ch;
int retval = 0;
int err = 0;
int str_length = 0;
if (dev->_audio_is_running) {
printk("Audio Channel is still running so return!\n");
return 0;
}
dev->_audio_upstream_channel_select = channel_select;
sram_ch = &dev->sram_channels[channel_select];
//Work queue
INIT_WORK(&dev->_audio_work_entry, cx25821_audioups_handler);
dev->_irq_audio_queues =
create_singlethread_workqueue("cx25821_audioworkqueue");
if (!dev->_irq_audio_queues) {
printk
("cx25821 ERROR: create_singlethread_workqueue() for Audio FAILED!\n");
return -ENOMEM;
}
dev->_last_index_irq = 0;
dev->_audio_is_running = 0;
dev->_audioframe_count = 0;
dev->_audiofile_status = RESET_STATUS;
dev->_audio_lines_count = LINES_PER_AUDIO_BUFFER;
_line_size = AUDIO_LINE_SIZE;
if (dev->input_audiofilename) {
str_length = strlen(dev->input_audiofilename);
dev->_audiofilename =
(char *)kmalloc(str_length + 1, GFP_KERNEL);
if (!dev->_audiofilename)
goto error;
memcpy(dev->_audiofilename, dev->input_audiofilename,
str_length + 1);
//Default if filename is empty string
if (strcmp(dev->input_audiofilename, "") == 0) {
dev->_audiofilename = "/root/audioGOOD.wav";
}
} else {
str_length = strlen(_defaultAudioName);
dev->_audiofilename =
(char *)kmalloc(str_length + 1, GFP_KERNEL);
if (!dev->_audiofilename)
goto error;
memcpy(dev->_audiofilename, _defaultAudioName, str_length + 1);
}
retval =
cx25821_sram_channel_setup_upstream_audio(dev, sram_ch, _line_size,
0);
dev->audio_upstream_riscbuf_size =
AUDIO_RISC_DMA_BUF_SIZE * NUM_AUDIO_PROGS +
RISC_SYNC_INSTRUCTION_SIZE;
dev->audio_upstream_databuf_size = AUDIO_DATA_BUF_SZ * NUM_AUDIO_PROGS;
//Allocating buffers and prepare RISC program
retval =
cx25821_audio_upstream_buffer_prepare(dev, sram_ch, _line_size);
if (retval < 0) {
printk(KERN_ERR
"%s: Failed to set up Audio upstream buffers!\n",
dev->name);
goto error;
}
//Start RISC engine
cx25821_start_audio_dma_upstream(dev, sram_ch);
return 0;
error:
cx25821_dev_unregister(dev);
return err;
}
