[media] move cx25821 out of staging

This driver had the major issues already fixed. Move it out
of staging.

Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 0 insertions, 885 deletions

diff --git a/drivers/staging/cx25821/cx25821-video-upstream.c b/drivers/staging/cx25821/cx25821-video-upstream.c
deleted file mode 100644
index c0b80068f468..000000000000
--- a/drivers/staging/cx25821/cx25821-video-upstream.c
+++ /dev/null
@@ -1,885 +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.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include "cx25821-video.h"
-#include "cx25821-video-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/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_VID_SRC_RISC1 | FLD_VID_SRC_UF | FLD_VID_SRC_SYNC |
-			FLD_VID_SRC_OPC_ERR;
-
-int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev,
-					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 > 4)
-		lines = 4;
-
-	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, (lines * 16) >> 3);
-	cx_write(ch->cmds_start + 16, ch->ctrl_start);
-
-	cx_write(ch->cmds_start + 20, VID_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, (lines * 16) >> 3);
-	cx_write(ch->cnt1_reg, (bpl >> 3) - 1);
-
-	return 0;
-}
-
-static __le32 *cx25821_update_riscprogram(struct cx25821_dev *dev,
-					  __le32 *rp, unsigned int offset,
-					  unsigned int bpl, u32 sync_line,
-					  unsigned int lines, int fifo_enable,
-					  int field_type)
-{
-	unsigned int line, i;
-	int dist_betwn_starts = bpl * 2;
-
-	*(rp++) = cpu_to_le32(RISC_RESYNC | sync_line);
-
-	if (USE_RISC_NOOP_VIDEO) {
-		for (i = 0; i < NUM_NO_OPS; i++)
-			*(rp++) = cpu_to_le32(RISC_NOOP);
-	}
-
-	/* scan lines */
-	for (line = 0; line < lines; line++) {
-		*(rp++) = cpu_to_le32(RISC_READ | RISC_SOL | RISC_EOL | bpl);
-		*(rp++) = cpu_to_le32(dev->_data_buf_phys_addr + offset);
-		*(rp++) = cpu_to_le32(0);	/* bits 63-32 */
-
-		if ((lines <= NTSC_FIELD_HEIGHT)
-		    || (line < (NTSC_FIELD_HEIGHT - 1)) || !(dev->_isNTSC)) {
-			offset += dist_betwn_starts;
-		}
-	}
-
-	return rp;
-}
-
-static __le32 *cx25821_risc_field_upstream(struct cx25821_dev *dev, __le32 * rp,
-					   dma_addr_t databuf_phys_addr,
-					   unsigned int offset, u32 sync_line,
-					   unsigned int bpl, unsigned int lines,
-					   int fifo_enable, int field_type)
-{
-	unsigned int line, i;
-	struct sram_channel *sram_ch =
-	   dev->channels[dev->_channel_upstream_select].sram_channels;
-	int dist_betwn_starts = bpl * 2;
-
-	/* sync instruction */
-	if (sync_line != NO_SYNC_LINE)
-		*(rp++) = cpu_to_le32(RISC_RESYNC | sync_line);
-
-	if (USE_RISC_NOOP_VIDEO) {
-		for (i = 0; i < NUM_NO_OPS; i++)
-			*(rp++) = cpu_to_le32(RISC_NOOP);
-	}
-
-	/* scan lines */
-	for (line = 0; line < lines; 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 */
-
-		if ((lines <= NTSC_FIELD_HEIGHT)
-		    || (line < (NTSC_FIELD_HEIGHT - 1)) || !(dev->_isNTSC))
-			/* to skip the other field line */
-			offset += dist_betwn_starts;
-
-		/* check if we need to enable the FIFO after the first 4 lines
-		 * For the upstream video channel, the risc engine will enable
-		 * the FIFO. */
-		if (fifo_enable && line == 3) {
-			*(rp++) = RISC_WRITECR;
-			*(rp++) = sram_ch->dma_ctl;
-			*(rp++) = FLD_VID_FIFO_EN;
-			*(rp++) = 0x00000001;
-		}
-	}
-
-	return rp;
-}
-
-int cx25821_risc_buffer_upstream(struct cx25821_dev *dev,
-				 struct pci_dev *pci,
-				 unsigned int top_offset,
-				 unsigned int bpl, unsigned int lines)
-{
-	__le32 *rp;
-	int fifo_enable = 0;
-	/* get line count for single field */
-	int singlefield_lines = lines >> 1;
-	int odd_num_lines = singlefield_lines;
-	int frame = 0;
-	int frame_size = 0;
-	int databuf_offset = 0;
-	int risc_program_size = 0;
-	int risc_flag = RISC_CNT_RESET;
-	unsigned int bottom_offset = bpl;
-	dma_addr_t risc_phys_jump_addr;
-
-	if (dev->_isNTSC) {
-		odd_num_lines = singlefield_lines + 1;
-		risc_program_size = FRAME1_VID_PROG_SIZE;
-		frame_size =
-		    (bpl ==
-		     Y411_LINE_SZ) ? FRAME_SIZE_NTSC_Y411 :
-		    FRAME_SIZE_NTSC_Y422;
-	} else {
-		risc_program_size = PAL_VID_PROG_SIZE;
-		frame_size =
-		    (bpl ==
-		     Y411_LINE_SZ) ? FRAME_SIZE_PAL_Y411 : FRAME_SIZE_PAL_Y422;
-	}
-
-	/* Virtual address of Risc buffer program */
-	rp = dev->_dma_virt_addr;
-
-	for (frame = 0; frame < NUM_FRAMES; frame++) {
-		databuf_offset = frame_size * frame;
-
-		if (UNSET != top_offset) {
-			fifo_enable = (frame == 0) ? FIFO_ENABLE : FIFO_DISABLE;
-			rp = cx25821_risc_field_upstream(dev, rp,
-							 dev->
-							 _data_buf_phys_addr +
-							 databuf_offset,
-							 top_offset, 0, bpl,
-							 odd_num_lines,
-							 fifo_enable,
-							 ODD_FIELD);
-		}
-
-		fifo_enable = FIFO_DISABLE;
-
-		/* Even Field */
-		rp = cx25821_risc_field_upstream(dev, rp,
-						 dev->_data_buf_phys_addr +
-						 databuf_offset, bottom_offset,
-						 0x200, bpl, singlefield_lines,
-						 fifo_enable, EVEN_FIELD);
-
-		if (frame == 0) {
-			risc_flag = RISC_CNT_RESET;
-			risc_phys_jump_addr =
-			    dev->_dma_phys_start_addr + risc_program_size;
-		} else {
-			risc_phys_jump_addr = dev->_dma_phys_start_addr;
-			risc_flag = RISC_CNT_INC;
-		}
-
-		/* Loop to 2ndFrameRISC 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);
-	}
-
-	return 0;
-}
-
-void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev)
-{
-	struct sram_channel *sram_ch =
-	   dev->channels[VID_UPSTREAM_SRAM_CHANNEL_I].sram_channels;
-	u32 tmp = 0;
-
-	if (!dev->_is_running) {
-		pr_info("No video file is currently running so return!\n");
-		return;
-	}
-	/* Disable RISC interrupts */
-	tmp = cx_read(sram_ch->int_msk);
-	cx_write(sram_ch->int_msk, tmp & ~_intr_msk);
-
-	/* Turn OFF risc and fifo enable */
-	tmp = cx_read(sram_ch->dma_ctl);
-	cx_write(sram_ch->dma_ctl, tmp & ~(FLD_VID_FIFO_EN | FLD_VID_RISC_EN));
-
-	/* Clear data buffer memory */
-	if (dev->_data_buf_virt_addr)
-		memset(dev->_data_buf_virt_addr, 0, dev->_data_buf_size);
-
-	dev->_is_running = 0;
-	dev->_is_first_frame = 0;
-	dev->_frame_count = 0;
-	dev->_file_status = END_OF_FILE;
-
-	kfree(dev->_irq_queues);
-	dev->_irq_queues = NULL;
-
-	kfree(dev->_filename);
-
-	tmp = cx_read(VID_CH_MODE_SEL);
-	cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
-}
-
-void cx25821_free_mem_upstream_ch1(struct cx25821_dev *dev)
-{
-	if (dev->_is_running)
-		cx25821_stop_upstream_video_ch1(dev);
-
-	if (dev->_dma_virt_addr) {
-		pci_free_consistent(dev->pci, dev->_risc_size,
-				    dev->_dma_virt_addr, dev->_dma_phys_addr);
-		dev->_dma_virt_addr = NULL;
-	}
-
-	if (dev->_data_buf_virt_addr) {
-		pci_free_consistent(dev->pci, dev->_data_buf_size,
-				    dev->_data_buf_virt_addr,
-				    dev->_data_buf_phys_addr);
-		dev->_data_buf_virt_addr = NULL;
-	}
-}
-
-int cx25821_get_frame(struct cx25821_dev *dev, struct sram_channel *sram_ch)
-{
-	struct file *myfile;
-	int frame_index_temp = dev->_frame_index;
-	int i = 0;
-	int line_size =
-	    (dev->_pixel_format ==
-	     PIXEL_FRMT_411) ? Y411_LINE_SZ : Y422_LINE_SZ;
-	int frame_size = 0;
-	int frame_offset = 0;
-	ssize_t vfs_read_retval = 0;
-	char mybuf[line_size];
-	loff_t file_offset;
-	loff_t pos;
-	mm_segment_t old_fs;
-
-	if (dev->_file_status == END_OF_FILE)
-		return 0;
-
-	if (dev->_isNTSC) {
-		frame_size =
-		    (line_size ==
-		     Y411_LINE_SZ) ? FRAME_SIZE_NTSC_Y411 :
-		    FRAME_SIZE_NTSC_Y422;
-	} else {
-		frame_size =
-		    (line_size ==
-		     Y411_LINE_SZ) ? FRAME_SIZE_PAL_Y411 : FRAME_SIZE_PAL_Y422;
-	}
-
-	frame_offset = (frame_index_temp > 0) ? frame_size : 0;
-	file_offset = dev->_frame_count * frame_size;
-
-	myfile = filp_open(dev->_filename, O_RDONLY | O_LARGEFILE, 0);
-
-	if (IS_ERR(myfile)) {
-		const int open_errno = -PTR_ERR(myfile);
-		pr_err("%s(): ERROR opening file(%s) with errno = %d!\n",
-		       __func__, dev->_filename, open_errno);
-		return PTR_ERR(myfile);
-	} else {
-		if (!(myfile->f_op)) {
-			pr_err("%s(): File has no file operations registered!\n",
-			       __func__);
-			filp_close(myfile, NULL);
-			return -EIO;
-		}
-
-		if (!myfile->f_op->read) {
-			pr_err("%s(): File has no READ operations registered!\n",
-			       __func__);
-			filp_close(myfile, NULL);
-			return -EIO;
-		}
-
-		pos = myfile->f_pos;
-		old_fs = get_fs();
-		set_fs(KERNEL_DS);
-
-		for (i = 0; i < dev->_lines_count; i++) {
-			pos = file_offset;
-
-			vfs_read_retval =
-			    vfs_read(myfile, mybuf, line_size, &pos);
-
-			if (vfs_read_retval > 0 && vfs_read_retval == line_size
-			    && dev->_data_buf_virt_addr != NULL) {
-				memcpy((void *)(dev->_data_buf_virt_addr +
-						frame_offset / 4), mybuf,
-				       vfs_read_retval);
-			}
-
-			file_offset += vfs_read_retval;
-			frame_offset += vfs_read_retval;
-
-			if (vfs_read_retval < line_size) {
-				pr_info("Done: exit %s() since no more bytes to read from Video file\n",
-					__func__);
-				break;
-			}
-		}
-
-		if (i > 0)
-			dev->_frame_count++;
-
-		dev->_file_status =
-		    (vfs_read_retval == line_size) ? IN_PROGRESS : END_OF_FILE;
-
-		set_fs(old_fs);
-		filp_close(myfile, NULL);
-	}
-
-	return 0;
-}
-
-static void cx25821_vidups_handler(struct work_struct *work)
-{
-	struct cx25821_dev *dev =
-	    container_of(work, struct cx25821_dev, _irq_work_entry);
-
-	if (!dev) {
-		pr_err("ERROR %s(): since container_of(work_struct) FAILED!\n",
-		       __func__);
-		return;
-	}
-
-	cx25821_get_frame(dev,
-			 dev->channels[dev->_channel_upstream_select].
-					       sram_channels);
-}
-
-int cx25821_openfile(struct cx25821_dev *dev, struct sram_channel *sram_ch)
-{
-	struct file *myfile;
-	int i = 0, j = 0;
-	int line_size =
-	    (dev->_pixel_format ==
-	     PIXEL_FRMT_411) ? Y411_LINE_SZ : Y422_LINE_SZ;
-	ssize_t vfs_read_retval = 0;
-	char mybuf[line_size];
-	loff_t pos;
-	loff_t offset = (unsigned long)0;
-	mm_segment_t old_fs;
-
-	myfile = filp_open(dev->_filename, O_RDONLY | O_LARGEFILE, 0);
-
-	if (IS_ERR(myfile)) {
-		const int open_errno = -PTR_ERR(myfile);
-		pr_err("%s(): ERROR opening file(%s) with errno = %d!\n",
-		       __func__, dev->_filename, open_errno);
-		return PTR_ERR(myfile);
-	} else {
-		if (!(myfile->f_op)) {
-			pr_err("%s(): File has no file operations registered!\n",
-			       __func__);
-			filp_close(myfile, NULL);
-			return -EIO;
-		}
-
-		if (!myfile->f_op->read) {
-			pr_err("%s(): File has no READ operations registered!  Returning\n",
-			       __func__);
-			filp_close(myfile, NULL);
-			return -EIO;
-		}
-
-		pos = myfile->f_pos;
-		old_fs = get_fs();
-		set_fs(KERNEL_DS);
-
-		for (j = 0; j < NUM_FRAMES; j++) {
-			for (i = 0; i < dev->_lines_count; i++) {
-				pos = offset;
-
-				vfs_read_retval =
-				    vfs_read(myfile, mybuf, line_size, &pos);
-
-				if (vfs_read_retval > 0
-				    && vfs_read_retval == line_size
-				    && dev->_data_buf_virt_addr != NULL) {
-					memcpy((void *)(dev->
-							_data_buf_virt_addr +
-							offset / 4), mybuf,
-					       vfs_read_retval);
-				}
-
-				offset += vfs_read_retval;
-
-				if (vfs_read_retval < line_size) {
-					pr_info("Done: exit %s() since no more bytes to read from Video file\n",
-						__func__);
-					break;
-				}
-			}
-
-			if (i > 0)
-				dev->_frame_count++;
-
-			if (vfs_read_retval < line_size)
-				break;
-		}
-
-		dev->_file_status =
-		    (vfs_read_retval == line_size) ? IN_PROGRESS : END_OF_FILE;
-
-		set_fs(old_fs);
-		myfile->f_pos = 0;
-		filp_close(myfile, NULL);
-	}
-
-	return 0;
-}
-
-int cx25821_upstream_buffer_prepare(struct cx25821_dev *dev,
-				    struct sram_channel *sram_ch, int bpl)
-{
-	int ret = 0;
-	dma_addr_t dma_addr;
-	dma_addr_t data_dma_addr;
-
-	if (dev->_dma_virt_addr != NULL) {
-		pci_free_consistent(dev->pci, dev->upstream_riscbuf_size,
-				    dev->_dma_virt_addr, dev->_dma_phys_addr);
-	}
-
-	dev->_dma_virt_addr =
-	    pci_alloc_consistent(dev->pci, dev->upstream_riscbuf_size,
-				 &dma_addr);
-	dev->_dma_virt_start_addr = dev->_dma_virt_addr;
-	dev->_dma_phys_start_addr = dma_addr;
-	dev->_dma_phys_addr = dma_addr;
-	dev->_risc_size = dev->upstream_riscbuf_size;
-
-	if (!dev->_dma_virt_addr) {
-		pr_err("FAILED to allocate memory for Risc buffer! Returning\n");
-		return -ENOMEM;
-	}
-
-	/* Clear memory at address */
-	memset(dev->_dma_virt_addr, 0, dev->_risc_size);
-
-	if (dev->_data_buf_virt_addr != NULL) {
-		pci_free_consistent(dev->pci, dev->upstream_databuf_size,
-				    dev->_data_buf_virt_addr,
-				    dev->_data_buf_phys_addr);
-	}
-	/* For Video Data buffer allocation */
-	dev->_data_buf_virt_addr =
-	    pci_alloc_consistent(dev->pci, dev->upstream_databuf_size,
-				 &data_dma_addr);
-	dev->_data_buf_phys_addr = data_dma_addr;
-	dev->_data_buf_size = dev->upstream_databuf_size;
-
-	if (!dev->_data_buf_virt_addr) {
-		pr_err("FAILED to allocate memory for data buffer! Returning\n");
-		return -ENOMEM;
-	}
-
-	/* Clear memory at address */
-	memset(dev->_data_buf_virt_addr, 0, dev->_data_buf_size);
-
-	ret = cx25821_openfile(dev, sram_ch);
-	if (ret < 0)
-		return ret;
-
-	/* Create RISC programs */
-	ret =
-	    cx25821_risc_buffer_upstream(dev, dev->pci, 0, bpl,
-					 dev->_lines_count);
-	if (ret < 0) {
-		pr_info("Failed creating Video Upstream Risc programs!\n");
-		goto error;
-	}
-
-	return 0;
-
-error:
-	return ret;
-}
-
-int cx25821_video_upstream_irq(struct cx25821_dev *dev, int chan_num,
-			       u32 status)
-{
-	u32 int_msk_tmp;
-	struct sram_channel *channel = dev->channels[chan_num].sram_channels;
-	int singlefield_lines = NTSC_FIELD_HEIGHT;
-	int line_size_in_bytes = Y422_LINE_SZ;
-	int odd_risc_prog_size = 0;
-	dma_addr_t risc_phys_jump_addr;
-	__le32 *rp;
-
-	if (status & FLD_VID_SRC_RISC1) {
-		/* We should only process one program per call */
-		u32 prog_cnt = cx_read(channel->gpcnt);
-
-		/* Since we've identified our IRQ, clear our bits from the
-		 * interrupt mask and interrupt status registers */
-		int_msk_tmp = cx_read(channel->int_msk);
-		cx_write(channel->int_msk, int_msk_tmp & ~_intr_msk);
-		cx_write(channel->int_stat, _intr_msk);
-
-		spin_lock(&dev->slock);
-
-		dev->_frame_index = prog_cnt;
-
-		queue_work(dev->_irq_queues, &dev->_irq_work_entry);
-
-		if (dev->_is_first_frame) {
-			dev->_is_first_frame = 0;
-
-			if (dev->_isNTSC) {
-				singlefield_lines += 1;
-				odd_risc_prog_size = ODD_FLD_NTSC_PROG_SIZE;
-			} else {
-				singlefield_lines = PAL_FIELD_HEIGHT;
-				odd_risc_prog_size = ODD_FLD_PAL_PROG_SIZE;
-			}
-
-			if (dev->_dma_virt_start_addr != NULL) {
-				line_size_in_bytes =
-				    (dev->_pixel_format ==
-				     PIXEL_FRMT_411) ? Y411_LINE_SZ :
-				    Y422_LINE_SZ;
-				risc_phys_jump_addr =
-				    dev->_dma_phys_start_addr +
-				    odd_risc_prog_size;
-
-				rp = cx25821_update_riscprogram(dev,
-					dev->_dma_virt_start_addr, TOP_OFFSET,
-					line_size_in_bytes, 0x0,
-					singlefield_lines, FIFO_DISABLE,
-					ODD_FIELD);
-
-				/* Jump to Even Risc program of 1st Frame */
-				*(rp++) = cpu_to_le32(RISC_JUMP);
-				*(rp++) = cpu_to_le32(risc_phys_jump_addr);
-				*(rp++) = cpu_to_le32(0);
-			}
-		}
-
-		spin_unlock(&dev->slock);
-	} else {
-		if (status & FLD_VID_SRC_UF)
-			pr_err("%s(): Video Received Underflow Error Interrupt!\n",
-			       __func__);
-
-		if (status & FLD_VID_SRC_SYNC)
-			pr_err("%s(): Video Received Sync Error Interrupt!\n",
-			       __func__);
-
-		if (status & FLD_VID_SRC_OPC_ERR)
-			pr_err("%s(): Video Received OpCode Error Interrupt!\n",
-			       __func__);
-	}
-
-	if (dev->_file_status == END_OF_FILE) {
-		pr_err("EOF Channel 1 Framecount = %d\n", dev->_frame_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(int irq, void *dev_id)
-{
-	struct cx25821_dev *dev = dev_id;
-	u32 msk_stat, vid_status;
-	int handled = 0;
-	int channel_num = 0;
-	struct sram_channel *sram_ch;
-
-	if (!dev)
-		return -1;
-
-	channel_num = VID_UPSTREAM_SRAM_CHANNEL_I;
-
-	sram_ch = dev->channels[channel_num].sram_channels;
-
-	msk_stat = cx_read(sram_ch->int_mstat);
-	vid_status = cx_read(sram_ch->int_stat);
-
-	/* Only deal with our interrupt */
-	if (vid_status) {
-		handled =
-		    cx25821_video_upstream_irq(dev, channel_num, vid_status);
-	}
-
-	if (handled < 0)
-		cx25821_stop_upstream_video_ch1(dev);
-	else
-		handled += handled;
-
-	return IRQ_RETVAL(handled);
-}
-
-void cx25821_set_pixelengine(struct cx25821_dev *dev, struct sram_channel *ch,
-			     int pix_format)
-{
-	int width = WIDTH_D1;
-	int height = dev->_lines_count;
-	int num_lines, odd_num_lines;
-	u32 value;
-	int vip_mode = OUTPUT_FRMT_656;
-
-	value = ((pix_format & 0x3) << 12) | (vip_mode & 0x7);
-	value &= 0xFFFFFFEF;
-	value |= dev->_isNTSC ? 0 : 0x10;
-	cx_write(ch->vid_fmt_ctl, value);
-
-	/* set number of active pixels in each line.
-	 * Default is 720 pixels in both NTSC and PAL format */
-	cx_write(ch->vid_active_ctl1, width);
-
-	num_lines = (height / 2) & 0x3FF;
-	odd_num_lines = num_lines;
-
-	if (dev->_isNTSC)
-		odd_num_lines += 1;
-
-	value = (num_lines << 16) | odd_num_lines;
-
-	/* set number of active lines in field 0 (top) and field 1 (bottom) */
-	cx_write(ch->vid_active_ctl2, value);
-
-	cx_write(ch->vid_cdt_size, VID_CDT_SIZE >> 3);
-}
-
-int cx25821_start_video_dma_upstream(struct cx25821_dev *dev,
-				     struct sram_channel *sram_ch)
-{
-	u32 tmp = 0;
-	int err = 0;
-
-	/* 656/VIP SRC Upstream Channel I & J and 7 - Host Bus Interface for
-	 * channel A-C
-	 */
-	tmp = cx_read(VID_CH_MODE_SEL);
-	cx_write(VID_CH_MODE_SEL, tmp | 0x1B0001FF);
-
-	/* 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->_dma_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);
-
-	/* 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,
-			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 | FLD_VID_RISC_EN);
-
-	dev->_is_running = 1;
-	dev->_is_first_frame = 1;
-
-	return 0;
-
-fail_irq:
-	cx25821_dev_unregister(dev);
-	return err;
-}
-
-int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, int channel_select,
-				 int pixel_format)
-{
-	struct sram_channel *sram_ch;
-	u32 tmp;
-	int retval = 0;
-	int err = 0;
-	int data_frame_size = 0;
-	int risc_buffer_size = 0;
-	int str_length = 0;
-
-	if (dev->_is_running) {
-		pr_info("Video Channel is still running so return!\n");
-		return 0;
-	}
-
-	dev->_channel_upstream_select = channel_select;
-	sram_ch = dev->channels[channel_select].sram_channels;
-
-	INIT_WORK(&dev->_irq_work_entry, cx25821_vidups_handler);
-	dev->_irq_queues = create_singlethread_workqueue("cx25821_workqueue");
-
-	if (!dev->_irq_queues) {
-		pr_err("create_singlethread_workqueue() for Video FAILED!\n");
-		return -ENOMEM;
-	}
-	/* 656/VIP SRC Upstream Channel I & J and 7 - Host Bus Interface for
-	 * channel A-C
-	 */
-	tmp = cx_read(VID_CH_MODE_SEL);
-	cx_write(VID_CH_MODE_SEL, tmp | 0x1B0001FF);
-
-	dev->_is_running = 0;
-	dev->_frame_count = 0;
-	dev->_file_status = RESET_STATUS;
-	dev->_lines_count = dev->_isNTSC ? 480 : 576;
-	dev->_pixel_format = pixel_format;
-	dev->_line_size =
-	    (dev->_pixel_format ==
-	     PIXEL_FRMT_422) ? (WIDTH_D1 * 2) : (WIDTH_D1 * 3) / 2;
-	data_frame_size = dev->_isNTSC ? NTSC_DATA_BUF_SZ : PAL_DATA_BUF_SZ;
-	risc_buffer_size =
-	    dev->_isNTSC ? NTSC_RISC_BUF_SIZE : PAL_RISC_BUF_SIZE;
-
-	if (dev->input_filename) {
-		str_length = strlen(dev->input_filename);
-		dev->_filename = kmalloc(str_length + 1, GFP_KERNEL);
-
-		if (!dev->_filename)
-			goto error;
-
-		memcpy(dev->_filename, dev->input_filename, str_length + 1);
-	} else {
-		str_length = strlen(dev->_defaultname);
-		dev->_filename = kmalloc(str_length + 1, GFP_KERNEL);
-
-		if (!dev->_filename)
-			goto error;
-
-		memcpy(dev->_filename, dev->_defaultname, str_length + 1);
-	}
-
-	/* Default if filename is empty string */
-	if (strcmp(dev->input_filename, "") == 0) {
-		if (dev->_isNTSC) {
-			dev->_filename =
-			    (dev->_pixel_format ==
-			     PIXEL_FRMT_411) ? "/root/vid411.yuv" :
-			    "/root/vidtest.yuv";
-		} else {
-			dev->_filename =
-			    (dev->_pixel_format ==
-			     PIXEL_FRMT_411) ? "/root/pal411.yuv" :
-			    "/root/pal422.yuv";
-		}
-	}
-
-	dev->_is_running = 0;
-	dev->_frame_count = 0;
-	dev->_file_status = RESET_STATUS;
-	dev->_lines_count = dev->_isNTSC ? 480 : 576;
-	dev->_pixel_format = pixel_format;
-	dev->_line_size =
-	    (dev->_pixel_format ==
-	     PIXEL_FRMT_422) ? (WIDTH_D1 * 2) : (WIDTH_D1 * 3) / 2;
-
-	retval =
-	    cx25821_sram_channel_setup_upstream(dev, sram_ch, dev->_line_size,
-						0);
-
-	/* setup fifo + format */
-	cx25821_set_pixelengine(dev, sram_ch, dev->_pixel_format);
-
-	dev->upstream_riscbuf_size = risc_buffer_size * 2;
-	dev->upstream_databuf_size = data_frame_size * 2;
-
-	/* Allocating buffers and prepare RISC program */
-	retval = cx25821_upstream_buffer_prepare(dev, sram_ch, dev->_line_size);
-	if (retval < 0) {
-		pr_err("%s: Failed to set up Video upstream buffers!\n",
-		       dev->name);
-		goto error;
-	}
-
-	cx25821_start_video_dma_upstream(dev, sram_ch);
-
-	return 0;
-
-error:
-	cx25821_dev_unregister(dev);
-
-	return err;
-}