1 files changed, 0 insertions, 679 deletions

diff --git a/drivers/media/pci/cx25821/cx25821-audio-upstream.c b/drivers/media/pci/cx25821/cx25821-audio-upstream.c
deleted file mode 100644
index ada26d4acfb4..000000000000
--- a/drivers/media/pci/cx25821/cx25821-audio-upstream.c
+++ /dev/null
@@ -1,679 +0,0 @@
-/*
- *  Driver for the Conexant CX25821 PCIe bridge
- *
- *  Copyright (C) 2009 Conexant Systems Inc.
- *  Authors  <hiep.huynh@conexant.com>, <shu.lin@conexant.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *
- *  GNU General Public License for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include "cx25821-video.h"
-#include "cx25821-audio-upstream.h"
-
-#include <linux/fs.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/syscalls.h>
-#include <linux/file.h>
-#include <linux/fcntl.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/uaccess.h>
-
-MODULE_DESCRIPTION("v4l2 driver module for cx25821 based TV cards");
-MODULE_AUTHOR("Hiep Huynh <hiep.huynh@conexant.com>");
-MODULE_LICENSE("GPL");
-
-static int _intr_msk = FLD_AUD_SRC_RISCI1 | FLD_AUD_SRC_OF |
-			FLD_AUD_SRC_SYNC | FLD_AUD_SRC_OPC_ERR;
-
-static int cx25821_sram_channel_setup_upstream_audio(struct cx25821_dev *dev,
-					      const struct sram_channel *ch,
-					      unsigned int bpl, u32 risc)
-{
-	unsigned int i, lines;
-	u32 cdt;
-
-	if (ch->cmds_start == 0) {
-		cx_write(ch->ptr1_reg, 0);
-		cx_write(ch->ptr2_reg, 0);
-		cx_write(ch->cnt2_reg, 0);
-		cx_write(ch->cnt1_reg, 0);
-		return 0;
-	}
-
-	bpl = (bpl + 7) & ~7;	/* alignment */
-	cdt = ch->cdt;
-	lines = ch->fifo_size / bpl;
-
-	if (lines > 3)
-		lines = 3;
-
-	BUG_ON(lines < 2);
-
-	/* write CDT */
-	for (i = 0; i < lines; i++) {
-		cx_write(cdt + 16 * i, ch->fifo_start + bpl * i);
-		cx_write(cdt + 16 * i + 4, 0);
-		cx_write(cdt + 16 * i + 8, 0);
-		cx_write(cdt + 16 * i + 12, 0);
-	}
-
-	/* write CMDS */
-	cx_write(ch->cmds_start + 0, risc);
-
-	cx_write(ch->cmds_start + 4, 0);
-	cx_write(ch->cmds_start + 8, cdt);
-	cx_write(ch->cmds_start + 12, AUDIO_CDT_SIZE_QW);
-	cx_write(ch->cmds_start + 16, ch->ctrl_start);
-
-	/* IQ size */
-	cx_write(ch->cmds_start + 20, AUDIO_IQ_SIZE_DW);
-
-	for (i = 24; i < 80; i += 4)
-		cx_write(ch->cmds_start + i, 0);
-
-	/* fill registers */
-	cx_write(ch->ptr1_reg, ch->fifo_start);
-	cx_write(ch->ptr2_reg, cdt);
-	cx_write(ch->cnt2_reg, AUDIO_CDT_SIZE_QW);
-	cx_write(ch->cnt1_reg, AUDIO_CLUSTER_SIZE_QW - 1);
-
-	return 0;
-}
-
-static __le32 *cx25821_risc_field_upstream_audio(struct cx25821_dev *dev,
-						 __le32 *rp,
-						 dma_addr_t databuf_phys_addr,
-						 unsigned int bpl,
-						 int fifo_enable)
-{
-	unsigned int line;
-	const struct sram_channel *sram_ch =
-		dev->channels[dev->_audio_upstream_channel].sram_channels;
-	int offset = 0;
-
-	/* scan lines */
-	for (line = 0; line < LINES_PER_AUDIO_BUFFER; line++) {
-		*(rp++) = cpu_to_le32(RISC_READ | RISC_SOL | RISC_EOL | bpl);
-		*(rp++) = cpu_to_le32(databuf_phys_addr + offset);
-		*(rp++) = cpu_to_le32(0);	/* bits 63-32 */
-
-		/* Check if we need to enable the FIFO
-		 * after the first 3 lines.
-		 * For the upstream audio channel,
-		 * the risc engine will enable the FIFO */
-		if (fifo_enable && line == 2) {
-			*(rp++) = RISC_WRITECR;
-			*(rp++) = sram_ch->dma_ctl;
-			*(rp++) = sram_ch->fld_aud_fifo_en;
-			*(rp++) = 0x00000020;
-		}
-
-		offset += AUDIO_LINE_SIZE;
-	}
-
-	return rp;
-}
-
-static int cx25821_risc_buffer_upstream_audio(struct cx25821_dev *dev,
-				       struct pci_dev *pci,
-				       unsigned int bpl, unsigned int lines)
-{
-	__le32 *rp;
-	int fifo_enable = 0;
-	int frame = 0, i = 0;
-	int frame_size = AUDIO_DATA_BUF_SZ;
-	int databuf_offset = 0;
-	int risc_flag = RISC_CNT_INC;
-	dma_addr_t risc_phys_jump_addr;
-
-	/* Virtual address of Risc buffer program */
-	rp = dev->_risc_virt_addr;
-
-	/* sync instruction */
-	*(rp++) = cpu_to_le32(RISC_RESYNC | AUDIO_SYNC_LINE);
-
-	for (frame = 0; frame < NUM_AUDIO_FRAMES; frame++) {
-		databuf_offset = frame_size * frame;
-
-		if (frame == 0) {
-			fifo_enable = 1;
-			risc_flag = RISC_CNT_RESET;
-		} else {
-			fifo_enable = 0;
-			risc_flag = RISC_CNT_INC;
-		}
-
-		/* Calculate physical jump address */
-		if ((frame + 1) == NUM_AUDIO_FRAMES) {
-			risc_phys_jump_addr =
-			    dev->_risc_phys_start_addr +
-			    RISC_SYNC_INSTRUCTION_SIZE;
-		} else {
-			risc_phys_jump_addr =
-			    dev->_risc_phys_start_addr +
-			    RISC_SYNC_INSTRUCTION_SIZE +
-			    AUDIO_RISC_DMA_BUF_SIZE * (frame + 1);
-		}
-
-		rp = cx25821_risc_field_upstream_audio(dev, rp,
-				dev->_audiodata_buf_phys_addr + databuf_offset,
-				bpl, fifo_enable);
-
-		if (USE_RISC_NOOP_AUDIO) {
-			for (i = 0; i < NUM_NO_OPS; i++)
-				*(rp++) = cpu_to_le32(RISC_NOOP);
-		}
-
-		/* Loop to (Nth)FrameRISC or to Start of Risc program &
-		 * generate IRQ */
-		*(rp++) = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | risc_flag);
-		*(rp++) = cpu_to_le32(risc_phys_jump_addr);
-		*(rp++) = cpu_to_le32(0);
-
-		/* Recalculate virtual address based on frame index */
-		rp = dev->_risc_virt_addr + RISC_SYNC_INSTRUCTION_SIZE / 4 +
-			(AUDIO_RISC_DMA_BUF_SIZE * (frame + 1) / 4);
-	}
-
-	return 0;
-}
-
-static void cx25821_free_memory_audio(struct cx25821_dev *dev)
-{
-	if (dev->_risc_virt_addr) {
-		pci_free_consistent(dev->pci, dev->_audiorisc_size,
-				    dev->_risc_virt_addr, dev->_risc_phys_addr);
-		dev->_risc_virt_addr = NULL;
-	}
-
-	if (dev->_audiodata_buf_virt_addr) {
-		pci_free_consistent(dev->pci, dev->_audiodata_buf_size,
-				    dev->_audiodata_buf_virt_addr,
-				    dev->_audiodata_buf_phys_addr);
-		dev->_audiodata_buf_virt_addr = NULL;
-	}
-}
-
-void cx25821_stop_upstream_audio(struct cx25821_dev *dev)
-{
-	const struct sram_channel *sram_ch =
-		dev->channels[AUDIO_UPSTREAM_SRAM_CHANNEL_B].sram_channels;
-	u32 tmp = 0;
-
-	if (!dev->_audio_is_running) {
-		printk(KERN_DEBUG
-		       pr_fmt("No audio file is currently running so return!\n"));
-		return;
-	}
-	/* Disable RISC interrupts */
-	cx_write(sram_ch->int_msk, 0);
-
-	/* Turn OFF risc and fifo enable in AUD_DMA_CNTRL */
-	tmp = cx_read(sram_ch->dma_ctl);
-	cx_write(sram_ch->dma_ctl,
-		 tmp & ~(sram_ch->fld_aud_fifo_en | sram_ch->fld_aud_risc_en));
-
-	/* Clear data buffer memory */
-	if (dev->_audiodata_buf_virt_addr)
-		memset(dev->_audiodata_buf_virt_addr, 0,
-		       dev->_audiodata_buf_size);
-
-	dev->_audio_is_running = 0;
-	dev->_is_first_audio_frame = 0;
-	dev->_audioframe_count = 0;
-	dev->_audiofile_status = END_OF_FILE;
-
-	flush_work(&dev->_audio_work_entry);
-
-	kfree(dev->_audiofilename);
-}
-
-void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev)
-{
-	if (dev->_audio_is_running)
-		cx25821_stop_upstream_audio(dev);
-
-	cx25821_free_memory_audio(dev);
-}
-
-static int cx25821_get_audio_data(struct cx25821_dev *dev,
-			   const struct sram_channel *sram_ch)
-{
-	struct file *file;
-	int frame_index_temp = dev->_audioframe_index;
-	int i = 0;
-	int frame_size = AUDIO_DATA_BUF_SZ;
-	int frame_offset = frame_size * frame_index_temp;
-	char mybuf[AUDIO_LINE_SIZE];
-	loff_t file_offset = dev->_audioframe_count * frame_size;
-	char *p = NULL;
-
-	if (dev->_audiofile_status == END_OF_FILE)
-		return 0;
-
-	file = filp_open(dev->_audiofilename, O_RDONLY | O_LARGEFILE, 0);
-	if (IS_ERR(file)) {
-		pr_err("%s(): ERROR opening file(%s) with errno = %ld!\n",
-		       __func__, dev->_audiofilename, -PTR_ERR(file));
-		return PTR_ERR(file);
-	}
-
-	if (dev->_audiodata_buf_virt_addr)
-		p = (char *)dev->_audiodata_buf_virt_addr + frame_offset;
-
-	for (i = 0; i < dev->_audio_lines_count; i++) {
-		int n = kernel_read(file, mybuf, AUDIO_LINE_SIZE, &file_offset);
-		if (n < AUDIO_LINE_SIZE) {
-			pr_info("Done: exit %s() since no more bytes to read from Audio file\n",
-				__func__);
-			dev->_audiofile_status = END_OF_FILE;
-			fput(file);
-			return 0;
-		}
-		dev->_audiofile_status = IN_PROGRESS;
-		if (p) {
-			memcpy(p, mybuf, n);
-			p += n;
-		}
-	}
-	dev->_audioframe_count++;
-	fput(file);
-
-	return 0;
-}
-
-static void cx25821_audioups_handler(struct work_struct *work)
-{
-	struct cx25821_dev *dev = container_of(work, struct cx25821_dev,
-			_audio_work_entry);
-
-	if (!dev) {
-		pr_err("ERROR %s(): since container_of(work_struct) FAILED!\n",
-			__func__);
-		return;
-	}
-
-	cx25821_get_audio_data(dev, dev->channels[dev->_audio_upstream_channel].
-			sram_channels);
-}
-
-static int cx25821_openfile_audio(struct cx25821_dev *dev,
-			   const struct sram_channel *sram_ch)
-{
-	char *p = (void *)dev->_audiodata_buf_virt_addr;
-	struct file *file;
-	loff_t file_offset = 0;
-	int i, j;
-
-	file = filp_open(dev->_audiofilename, O_RDONLY | O_LARGEFILE, 0);
-	if (IS_ERR(file)) {
-		pr_err("%s(): ERROR opening file(%s) with errno = %ld!\n",
-			__func__, dev->_audiofilename, PTR_ERR(file));
-		return PTR_ERR(file);
-	}
-
-	for (j = 0; j < NUM_AUDIO_FRAMES; j++) {
-		for (i = 0; i < dev->_audio_lines_count; i++) {
-			char buf[AUDIO_LINE_SIZE];
-			loff_t offset = file_offset;
-			int n = kernel_read(file, buf, AUDIO_LINE_SIZE, &file_offset);
-
-			if (n < AUDIO_LINE_SIZE) {
-				pr_info("Done: exit %s() since no more bytes to read from Audio file\n",
-					__func__);
-				dev->_audiofile_status = END_OF_FILE;
-				fput(file);
-				return 0;
-			}
-
-			if (p)
-				memcpy(p + offset, buf, n);
-		}
-		dev->_audioframe_count++;
-	}
-	dev->_audiofile_status = IN_PROGRESS;
-	fput(file);
-	return 0;
-}
-
-static int cx25821_audio_upstream_buffer_prepare(struct cx25821_dev *dev,
-						 const struct sram_channel *sram_ch,
-						 int bpl)
-{
-	int ret = 0;
-	dma_addr_t dma_addr;
-	dma_addr_t data_dma_addr;
-
-	cx25821_free_memory_audio(dev);
-
-	dev->_risc_virt_addr = pci_alloc_consistent(dev->pci,
-			dev->audio_upstream_riscbuf_size, &dma_addr);
-	dev->_risc_virt_start_addr = dev->_risc_virt_addr;
-	dev->_risc_phys_start_addr = dma_addr;
-	dev->_risc_phys_addr = dma_addr;
-	dev->_audiorisc_size = dev->audio_upstream_riscbuf_size;
-
-	if (!dev->_risc_virt_addr) {
-		printk(KERN_DEBUG
-			pr_fmt("ERROR: pci_alloc_consistent() FAILED to allocate memory for RISC program! Returning\n"));
-		return -ENOMEM;
-	}
-	/* Clear out memory at address */
-	memset(dev->_risc_virt_addr, 0, dev->_audiorisc_size);
-
-	/* For Audio Data buffer allocation */
-	dev->_audiodata_buf_virt_addr = pci_alloc_consistent(dev->pci,
-			dev->audio_upstream_databuf_size, &data_dma_addr);
-	dev->_audiodata_buf_phys_addr = data_dma_addr;
-	dev->_audiodata_buf_size = dev->audio_upstream_databuf_size;
-
-	if (!dev->_audiodata_buf_virt_addr) {
-		printk(KERN_DEBUG
-			pr_fmt("ERROR: pci_alloc_consistent() FAILED to allocate memory for data buffer! Returning\n"));
-		return -ENOMEM;
-	}
-	/* Clear out memory at address */
-	memset(dev->_audiodata_buf_virt_addr, 0, dev->_audiodata_buf_size);
-
-	ret = cx25821_openfile_audio(dev, sram_ch);
-	if (ret < 0)
-		return ret;
-
-	/* Creating RISC programs */
-	ret = cx25821_risc_buffer_upstream_audio(dev, dev->pci, bpl,
-						dev->_audio_lines_count);
-	if (ret < 0) {
-		printk(KERN_DEBUG
-			pr_fmt("ERROR creating audio upstream RISC programs!\n"));
-		goto error;
-	}
-
-	return 0;
-
-error:
-	return ret;
-}
-
-static int cx25821_audio_upstream_irq(struct cx25821_dev *dev, int chan_num,
-			       u32 status)
-{
-	int i = 0;
-	u32 int_msk_tmp;
-	const struct sram_channel *channel = dev->channels[chan_num].sram_channels;
-	dma_addr_t risc_phys_jump_addr;
-	__le32 *rp;
-
-	if (status & FLD_AUD_SRC_RISCI1) {
-		/* Get interrupt_index of the program that interrupted */
-		u32 prog_cnt = cx_read(channel->gpcnt);
-
-		/* Since we've identified our IRQ, clear our bits from the
-		 * interrupt mask and interrupt status registers */
-		cx_write(channel->int_msk, 0);
-		cx_write(channel->int_stat, cx_read(channel->int_stat));
-
-		spin_lock(&dev->slock);
-
-		while (prog_cnt != dev->_last_index_irq) {
-			/* Update _last_index_irq */
-			if (dev->_last_index_irq < (NUMBER_OF_PROGRAMS - 1))
-				dev->_last_index_irq++;
-			else
-				dev->_last_index_irq = 0;
-
-			dev->_audioframe_index = dev->_last_index_irq;
-
-			schedule_work(&dev->_audio_work_entry);
-		}
-
-		if (dev->_is_first_audio_frame) {
-			dev->_is_first_audio_frame = 0;
-
-			if (dev->_risc_virt_start_addr != NULL) {
-				risc_phys_jump_addr =
-					dev->_risc_phys_start_addr +
-					RISC_SYNC_INSTRUCTION_SIZE +
-					AUDIO_RISC_DMA_BUF_SIZE;
-
-				rp = cx25821_risc_field_upstream_audio(dev,
-						dev->_risc_virt_start_addr + 1,
-						dev->_audiodata_buf_phys_addr,
-						AUDIO_LINE_SIZE, FIFO_DISABLE);
-
-				if (USE_RISC_NOOP_AUDIO) {
-					for (i = 0; i < NUM_NO_OPS; i++) {
-						*(rp++) =
-						    cpu_to_le32(RISC_NOOP);
-					}
-				}
-				/* Jump to 2nd Audio Frame */
-				*(rp++) = cpu_to_le32(RISC_JUMP | RISC_IRQ1 |
-						RISC_CNT_RESET);
-				*(rp++) = cpu_to_le32(risc_phys_jump_addr);
-				*(rp++) = cpu_to_le32(0);
-			}
-		}
-
-		spin_unlock(&dev->slock);
-	} else {
-		if (status & FLD_AUD_SRC_OF)
-			pr_warn("%s(): Audio Received Overflow Error Interrupt!\n",
-				__func__);
-
-		if (status & FLD_AUD_SRC_SYNC)
-			pr_warn("%s(): Audio Received Sync Error Interrupt!\n",
-				__func__);
-
-		if (status & FLD_AUD_SRC_OPC_ERR)
-			pr_warn("%s(): Audio Received OpCode Error Interrupt!\n",
-				__func__);
-
-		/* Read and write back the interrupt status register to clear
-		 * our bits */
-		cx_write(channel->int_stat, cx_read(channel->int_stat));
-	}
-
-	if (dev->_audiofile_status == END_OF_FILE) {
-		pr_warn("EOF Channel Audio Framecount = %d\n",
-			dev->_audioframe_count);
-		return -1;
-	}
-	/* ElSE, set the interrupt mask register, re-enable irq. */
-	int_msk_tmp = cx_read(channel->int_msk);
-	cx_write(channel->int_msk, int_msk_tmp |= _intr_msk);
-
-	return 0;
-}
-
-static irqreturn_t cx25821_upstream_irq_audio(int irq, void *dev_id)
-{
-	struct cx25821_dev *dev = dev_id;
-	u32 audio_status;
-	int handled = 0;
-	const struct sram_channel *sram_ch;
-
-	if (!dev)
-		return -1;
-
-	sram_ch = dev->channels[dev->_audio_upstream_channel].sram_channels;
-
-	audio_status = cx_read(sram_ch->int_stat);
-
-	/* Only deal with our interrupt */
-	if (audio_status) {
-		handled = cx25821_audio_upstream_irq(dev,
-				dev->_audio_upstream_channel, audio_status);
-	}
-
-	if (handled < 0)
-		cx25821_stop_upstream_audio(dev);
-	else
-		handled += handled;
-
-	return IRQ_RETVAL(handled);
-}
-
-static void cx25821_wait_fifo_enable(struct cx25821_dev *dev,
-				     const struct sram_channel *sram_ch)
-{
-	int count = 0;
-	u32 tmp;
-
-	do {
-		/* Wait 10 microsecond before checking to see if the FIFO is
-		 * turned ON. */
-		udelay(10);
-
-		tmp = cx_read(sram_ch->dma_ctl);
-
-		/* 10 millisecond timeout */
-		if (count++ > 1000) {
-			pr_err("ERROR: %s() fifo is NOT turned on. Timeout!\n",
-				__func__);
-			return;
-		}
-
-	} while (!(tmp & sram_ch->fld_aud_fifo_en));
-
-}
-
-static int cx25821_start_audio_dma_upstream(struct cx25821_dev *dev,
-					    const struct sram_channel *sram_ch)
-{
-	u32 tmp = 0;
-	int err = 0;
-
-	/* Set the physical start address of the RISC program in the initial
-	 * program counter(IPC) member of the CMDS. */
-	cx_write(sram_ch->cmds_start + 0, dev->_risc_phys_addr);
-	/* Risc IPC High 64 bits 63-32 */
-	cx_write(sram_ch->cmds_start + 4, 0);
-
-	/* reset counter */
-	cx_write(sram_ch->gpcnt_ctl, 3);
-
-	/* Set the line length       (It looks like we do not need to set the
-	 * line length) */
-	cx_write(sram_ch->aud_length, AUDIO_LINE_SIZE & FLD_AUD_DST_LN_LNGTH);
-
-	/* Set the input mode to 16-bit */
-	tmp = cx_read(sram_ch->aud_cfg);
-	tmp |= FLD_AUD_SRC_ENABLE | FLD_AUD_DST_PK_MODE | FLD_AUD_CLK_ENABLE |
-		FLD_AUD_MASTER_MODE | FLD_AUD_CLK_SELECT_PLL_D |
-		FLD_AUD_SONY_MODE;
-	cx_write(sram_ch->aud_cfg, tmp);
-
-	/* Read and write back the interrupt status register to clear it */
-	tmp = cx_read(sram_ch->int_stat);
-	cx_write(sram_ch->int_stat, tmp);
-
-	/* Clear our bits from the interrupt status register. */
-	cx_write(sram_ch->int_stat, _intr_msk);
-
-	/* Set the interrupt mask register, enable irq. */
-	cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | (1 << sram_ch->irq_bit));
-	tmp = cx_read(sram_ch->int_msk);
-	cx_write(sram_ch->int_msk, tmp |= _intr_msk);
-
-	err = request_irq(dev->pci->irq, cx25821_upstream_irq_audio,
-			IRQF_SHARED, dev->name, dev);
-	if (err < 0) {
-		pr_err("%s: can't get upstream IRQ %d\n", dev->name,
-				dev->pci->irq);
-		goto fail_irq;
-	}
-
-	/* Start the DMA  engine */
-	tmp = cx_read(sram_ch->dma_ctl);
-	cx_set(sram_ch->dma_ctl, tmp | sram_ch->fld_aud_risc_en);
-
-	dev->_audio_is_running = 1;
-	dev->_is_first_audio_frame = 1;
-
-	/* The fifo_en bit turns on by the first Risc program */
-	cx25821_wait_fifo_enable(dev, sram_ch);
-
-	return 0;
-
-fail_irq:
-	cx25821_dev_unregister(dev);
-	return err;
-}
-
-int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
-{
-	const 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->_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) &&
-	    (strcmp(dev->input_audiofilename, "") != 0))
-		dev->_audiofilename = kstrdup(dev->input_audiofilename,
-					      GFP_KERNEL);
-	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;
-}