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[media] cx25821: drop cx25821-video-upstream-ch2.c/h

Browse source 
cx25821-video-upstream_ch2.c/h is practically identical to cx25821-video-upstream.c/h
so add support for ch2 into cx25821-video-upstream.c instead.
After this we can replace the custom ioctls with a proper write() interface.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2013-04-14 12:10:32 -03:00 committed by Mauro Carvalho Chehab
parent e90878ab15
commit 7087d31b0c
7 changed files with 244 additions and 1196 deletions
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1
drivers/media/pci/cx25821/Makefile
View file

@ -1,7 +1,6 @@
cx25821-y := cx25821-core.o cx25821-cards.o cx25821-i2c.o \
cx25821-gpio.o cx25821-medusa-video.o \
cx25821-video.o cx25821-video-upstream.o \
cx25821-video-upstream-ch2.o \
cx25821-audio-upstream.o
obj-$(CONFIG_VIDEO_CX25821) += cx25821.o

4
drivers/media/pci/cx25821/cx25821-core.c
View file

@ -963,8 +963,6 @@ void cx25821_dev_unregister(struct cx25821_dev *dev)
if (!dev->base_io_addr)
return;
cx25821_free_mem_upstream_ch1(dev);
cx25821_free_mem_upstream_ch2(dev);
cx25821_free_mem_upstream_audio(dev);
release_mem_region(dev->base_io_addr, pci_resource_len(dev->pci, 0));
@ -972,6 +970,8 @@ void cx25821_dev_unregister(struct cx25821_dev *dev)
for (i = 0; i < MAX_VID_CHANNEL_NUM - 1; i++) {
if (i == SRAM_CH08) /* audio channel */
continue;
if (i == SRAM_CH09 || i == SRAM_CH10)
cx25821_free_mem_upstream(&dev->channels[i]);
cx25821_video_unregister(dev, i);
}

800
drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c
View file

@ -1,800 +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-ch2.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;
static __le32 *cx25821_update_riscprogram_ch2(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_ch2 + offset);
*(rp++) = cpu_to_le32(0); /* bits 63-32 */
if ((lines <= NTSC_FIELD_HEIGHT) ||
(line < (NTSC_FIELD_HEIGHT - 1)) || !(dev->_isNTSC_ch2)) {
offset += dist_betwn_starts;
}
}
return rp;
}
static __le32 *cx25821_risc_field_upstream_ch2(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;
const struct sram_channel *sram_ch =
dev->channels[dev->_channel2_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_ch2)) {
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;
}
static int cx25821_risc_buffer_upstream_ch2(struct cx25821_dev *dev,
struct pci_dev *pci,
unsigned int top_offset,
unsigned int bpl,
unsigned int lines)
{
__le32 *rp;
int fifo_enable = 0;
int singlefield_lines = lines >> 1; /*get line count for single field */
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_ch2) {
odd_num_lines = singlefield_lines + 1;
risc_program_size = FRAME1_VID_PROG_SIZE;
if (bpl == Y411_LINE_SZ)
frame_size = FRAME_SIZE_NTSC_Y411;
else
frame_size = FRAME_SIZE_NTSC_Y422;
} else {
risc_program_size = PAL_VID_PROG_SIZE;
if (bpl == Y411_LINE_SZ)
frame_size = FRAME_SIZE_PAL_Y411;
else
frame_size = FRAME_SIZE_PAL_Y422;
}
/* Virtual address of Risc buffer program */
rp = dev->_dma_virt_addr_ch2;
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_ch2(dev, rp,
dev->_data_buf_phys_addr_ch2 + databuf_offset,
top_offset, 0, bpl, odd_num_lines, fifo_enable,
ODD_FIELD);
}
fifo_enable = FIFO_DISABLE;
/* Even field */
rp = cx25821_risc_field_upstream_ch2(dev, rp,
dev->_data_buf_phys_addr_ch2 + 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_ch2 +
risc_program_size;
} else {
risc_flag = RISC_CNT_INC;
risc_phys_jump_addr = dev->_dma_phys_start_addr_ch2;
}
/*
* 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_ch2(struct cx25821_dev *dev)
{
const struct sram_channel *sram_ch =
dev->channels[VID_UPSTREAM_SRAM_CHANNEL_J].sram_channels;
u32 tmp = 0;
if (!dev->_is_running_ch2) {
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 */
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_ch2)
memset(dev->_data_buf_virt_addr_ch2, 0,
dev->_data_buf_size_ch2);
dev->_is_running_ch2 = 0;
dev->_is_first_frame_ch2 = 0;
dev->_frame_count_ch2 = 0;
dev->_file_status_ch2 = END_OF_FILE;
kfree(dev->_irq_queues_ch2);
dev->_irq_queues_ch2 = NULL;
kfree(dev->_filename_ch2);
tmp = cx_read(VID_CH_MODE_SEL);
cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
}
void cx25821_free_mem_upstream_ch2(struct cx25821_dev *dev)
{
if (dev->_is_running_ch2)
cx25821_stop_upstream_video_ch2(dev);
if (dev->_dma_virt_addr_ch2) {
pci_free_consistent(dev->pci, dev->_risc_size_ch2,
dev->_dma_virt_addr_ch2,
dev->_dma_phys_addr_ch2);
dev->_dma_virt_addr_ch2 = NULL;
}
if (dev->_data_buf_virt_addr_ch2) {
pci_free_consistent(dev->pci, dev->_data_buf_size_ch2,
dev->_data_buf_virt_addr_ch2,
dev->_data_buf_phys_addr_ch2);
dev->_data_buf_virt_addr_ch2 = NULL;
}
}
static int cx25821_get_frame_ch2(struct cx25821_dev *dev,
const struct sram_channel *sram_ch)
{
struct file *myfile;
int frame_index_temp = dev->_frame_index_ch2;
int i = 0;
int line_size = (dev->_pixel_format_ch2 == 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_ch2 == END_OF_FILE)
return 0;
if (dev->_isNTSC_ch2) {
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_ch2 * frame_size;
myfile = filp_open(dev->_filename_ch2, 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_ch2, 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_ch2; 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_ch2 != NULL) {
memcpy((void *)(dev->_data_buf_virt_addr_ch2 +
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_ch2++;
dev->_file_status_ch2 = (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_ch2(struct work_struct *work)
{
struct cx25821_dev *dev = container_of(work, struct cx25821_dev,
_irq_work_entry_ch2);
if (!dev) {
pr_err("ERROR %s(): since container_of(work_struct) FAILED!\n",
__func__);
return;
}
cx25821_get_frame_ch2(dev, dev->channels[dev->
_channel2_upstream_select].sram_channels);
}
static int cx25821_openfile_ch2(struct cx25821_dev *dev,
const struct sram_channel *sram_ch)
{
struct file *myfile;
int i = 0, j = 0;
int line_size = (dev->_pixel_format_ch2 == 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_ch2, 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_ch2, 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_ch2; 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_ch2 != NULL) {
memcpy((void *)(dev->
_data_buf_virt_addr_ch2
+ 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_ch2++;
if (vfs_read_retval < line_size)
break;
}
dev->_file_status_ch2 = (vfs_read_retval == line_size) ?
IN_PROGRESS : END_OF_FILE;
set_fs(old_fs);
myfile->f_pos = 0;
filp_close(myfile, NULL);
}
return 0;
}
static int cx25821_upstream_buffer_prepare_ch2(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;
if (dev->_dma_virt_addr_ch2 != NULL) {
pci_free_consistent(dev->pci, dev->upstream_riscbuf_size_ch2,
dev->_dma_virt_addr_ch2,
dev->_dma_phys_addr_ch2);
}
dev->_dma_virt_addr_ch2 = pci_alloc_consistent(dev->pci,
dev->upstream_riscbuf_size_ch2, &dma_addr);
dev->_dma_virt_start_addr_ch2 = dev->_dma_virt_addr_ch2;
dev->_dma_phys_start_addr_ch2 = dma_addr;
dev->_dma_phys_addr_ch2 = dma_addr;
dev->_risc_size_ch2 = dev->upstream_riscbuf_size_ch2;
if (!dev->_dma_virt_addr_ch2) {
pr_err("FAILED to allocate memory for Risc buffer! Returning\n");
return -ENOMEM;
}
/* Iniitize at this address until n bytes to 0 */
memset(dev->_dma_virt_addr_ch2, 0, dev->_risc_size_ch2);
if (dev->_data_buf_virt_addr_ch2 != NULL) {
pci_free_consistent(dev->pci, dev->upstream_databuf_size_ch2,
dev->_data_buf_virt_addr_ch2,
dev->_data_buf_phys_addr_ch2);
}
/* For Video Data buffer allocation */
dev->_data_buf_virt_addr_ch2 = pci_alloc_consistent(dev->pci,
dev->upstream_databuf_size_ch2, &data_dma_addr);
dev->_data_buf_phys_addr_ch2 = data_dma_addr;
dev->_data_buf_size_ch2 = dev->upstream_databuf_size_ch2;
if (!dev->_data_buf_virt_addr_ch2) {
pr_err("FAILED to allocate memory for data buffer! Returning\n");
return -ENOMEM;
}
/* Initialize at this address until n bytes to 0 */
memset(dev->_data_buf_virt_addr_ch2, 0, dev->_data_buf_size_ch2);
ret = cx25821_openfile_ch2(dev, sram_ch);
if (ret < 0)
return ret;
/* Creating RISC programs */
ret = cx25821_risc_buffer_upstream_ch2(dev, dev->pci, 0, bpl,
dev->_lines_count_ch2);
if (ret < 0) {
pr_info("Failed creating Video Upstream Risc programs!\n");
goto error;
}
return 0;
error:
return ret;
}
static int cx25821_video_upstream_irq_ch2(struct cx25821_dev *dev,
int chan_num,
u32 status)
{
u32 int_msk_tmp;
const 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_ch2 = prog_cnt;
queue_work(dev->_irq_queues_ch2, &dev->_irq_work_entry_ch2);
if (dev->_is_first_frame_ch2) {
dev->_is_first_frame_ch2 = 0;
if (dev->_isNTSC_ch2) {
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_ch2 != NULL) {
if (dev->_pixel_format_ch2 == PIXEL_FRMT_411)
line_size_in_bytes = Y411_LINE_SZ;
else
line_size_in_bytes = Y422_LINE_SZ;
risc_phys_jump_addr =
dev->_dma_phys_start_addr_ch2 +
odd_risc_prog_size;
rp = cx25821_update_riscprogram_ch2(dev,
dev->_dma_virt_start_addr_ch2,
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);
}
if (dev->_file_status_ch2 == END_OF_FILE) {
pr_info("EOF Channel 2 Framecount = %d\n",
dev->_frame_count_ch2);
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_ch2(int irq, void *dev_id)
{
struct cx25821_dev *dev = dev_id;
u32 vid_status;
int handled = 0;
int channel_num = 0;
const struct sram_channel *sram_ch;
if (!dev)
return -1;
channel_num = VID_UPSTREAM_SRAM_CHANNEL_J;
sram_ch = dev->channels[channel_num].sram_channels;
vid_status = cx_read(sram_ch->int_stat);
/* Only deal with our interrupt */
if (vid_status)
handled = cx25821_video_upstream_irq_ch2(dev, channel_num,
vid_status);
if (handled < 0)
cx25821_stop_upstream_video_ch2(dev);
else
handled += handled;
return IRQ_RETVAL(handled);
}
static void cx25821_set_pixelengine_ch2(struct cx25821_dev *dev,
const struct sram_channel *ch, int pix_format)
{
int width = WIDTH_D1;
int height = dev->_lines_count_ch2;
int num_lines, odd_num_lines;
u32 value;
int vip_mode = PIXEL_ENGINE_VIP1;
value = ((pix_format & 0x3) << 12) | (vip_mode & 0x7);
value &= 0xFFFFFFEF;
value |= dev->_isNTSC_ch2 ? 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_ch2)
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);
}
static int cx25821_start_video_dma_upstream_ch2(struct cx25821_dev *dev,
const 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_ch2);
cx_write(sram_ch->cmds_start + 4, 0); /* Risc IPC High 64 bits 63-32 */
/* 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_ch2,
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_ch2 = 1;
dev->_is_first_frame_ch2 = 1;
return 0;
fail_irq:
cx25821_dev_unregister(dev);
return err;
}
int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, int channel_select,
int pixel_format)
{
const struct sram_channel *sram_ch;
u32 tmp;
int err = 0;
int data_frame_size = 0;
int risc_buffer_size = 0;
if (dev->_is_running_ch2) {
pr_info("Video Channel is still running so return!\n");
return 0;
}
dev->_channel2_upstream_select = channel_select;
sram_ch = dev->channels[channel_select].sram_channels;
INIT_WORK(&dev->_irq_work_entry_ch2, cx25821_vidups_handler_ch2);
dev->_irq_queues_ch2 =
create_singlethread_workqueue("cx25821_workqueue2");
if (!dev->_irq_queues_ch2) {
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_ch2 = 0;
dev->_frame_count_ch2 = 0;
dev->_file_status_ch2 = RESET_STATUS;
dev->_lines_count_ch2 = dev->_isNTSC_ch2 ? 480 : 576;
dev->_pixel_format_ch2 = pixel_format;
dev->_line_size_ch2 = (dev->_pixel_format_ch2 == PIXEL_FRMT_422) ?
(WIDTH_D1 * 2) : (WIDTH_D1 * 3) / 2;
data_frame_size = dev->_isNTSC_ch2 ? NTSC_DATA_BUF_SZ : PAL_DATA_BUF_SZ;
risc_buffer_size = dev->_isNTSC_ch2 ?
NTSC_RISC_BUF_SIZE : PAL_RISC_BUF_SIZE;
if (dev->input_filename_ch2)
dev->_filename_ch2 = kstrdup(dev->input_filename_ch2,
GFP_KERNEL);
else
dev->_filename_ch2 = kstrdup(dev->_defaultname_ch2,
GFP_KERNEL);
if (!dev->_filename_ch2) {
err = -ENOENT;
goto error;
}
/* Default if filename is empty string */
if (strcmp(dev->_filename_ch2, "") == 0) {
if (dev->_isNTSC_ch2) {
dev->_filename_ch2 = (dev->_pixel_format_ch2 ==
PIXEL_FRMT_411) ? "/root/vid411.yuv" :
"/root/vidtest.yuv";
} else {
dev->_filename_ch2 = (dev->_pixel_format_ch2 ==
PIXEL_FRMT_411) ? "/root/pal411.yuv" :
"/root/pal422.yuv";
}
}
err = cx25821_sram_channel_setup_upstream(dev, sram_ch,
dev->_line_size_ch2, 0);
/* setup fifo + format */
cx25821_set_pixelengine_ch2(dev, sram_ch, dev->_pixel_format_ch2);
dev->upstream_riscbuf_size_ch2 = risc_buffer_size * 2;
dev->upstream_databuf_size_ch2 = data_frame_size * 2;
/* Allocating buffers and prepare RISC program */
err = cx25821_upstream_buffer_prepare_ch2(dev, sram_ch,
dev->_line_size_ch2);
if (err < 0) {
pr_err("%s: Failed to set up Video upstream buffers!\n",
dev->name);
goto error;
}
cx25821_start_video_dma_upstream_ch2(dev, sram_ch);
return 0;
error:
cx25821_dev_unregister(dev);
return err;
}

138
drivers/media/pci/cx25821/cx25821-video-upstream-ch2.h
View file

@ -1,138 +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.
*/
#include <linux/mutex.h>
#include <linux/workqueue.h>
#define OPEN_FILE_1 0
#define NUM_PROGS 8
#define NUM_FRAMES 2
#define ODD_FIELD 0
#define EVEN_FIELD 1
#define TOP_OFFSET 0
#define FIFO_DISABLE 0
#define FIFO_ENABLE 1
#define TEST_FRAMES 5
#define END_OF_FILE 0
#define IN_PROGRESS 1
#define RESET_STATUS -1
#define NUM_NO_OPS 5
/* PAL and NTSC line sizes and number of lines. */
#define WIDTH_D1 720
#define NTSC_LINES_PER_FRAME 480
#define PAL_LINES_PER_FRAME 576
#define PAL_LINE_SZ 1440
#define Y422_LINE_SZ 1440
#define Y411_LINE_SZ 1080
#define NTSC_FIELD_HEIGHT 240
#define NTSC_ODD_FLD_LINES 241
#define PAL_FIELD_HEIGHT 288
#define FRAME_SIZE_NTSC_Y422 (NTSC_LINES_PER_FRAME * Y422_LINE_SZ)
#define FRAME_SIZE_NTSC_Y411 (NTSC_LINES_PER_FRAME * Y411_LINE_SZ)
#define FRAME_SIZE_PAL_Y422 (PAL_LINES_PER_FRAME * Y422_LINE_SZ)
#define FRAME_SIZE_PAL_Y411 (PAL_LINES_PER_FRAME * Y411_LINE_SZ)
#define NTSC_DATA_BUF_SZ (Y422_LINE_SZ * NTSC_LINES_PER_FRAME)
#define PAL_DATA_BUF_SZ (Y422_LINE_SZ * PAL_LINES_PER_FRAME)
#define RISC_WRITECR_INSTRUCTION_SIZE 16
#define RISC_SYNC_INSTRUCTION_SIZE 4
#define JUMP_INSTRUCTION_SIZE 12
#define MAXSIZE_NO_OPS 36
#define DWORD_SIZE 4
#define USE_RISC_NOOP_VIDEO 1
#ifdef USE_RISC_NOOP_VIDEO
#define PAL_US_VID_PROG_SIZE \
(PAL_FIELD_HEIGHT * 3 * DWORD_SIZE + \
RISC_WRITECR_INSTRUCTION_SIZE + RISC_SYNC_INSTRUCTION_SIZE + \
NUM_NO_OPS * DWORD_SIZE)
#define PAL_RISC_BUF_SIZE (2 * PAL_US_VID_PROG_SIZE)
#define PAL_VID_PROG_SIZE \
((PAL_FIELD_HEIGHT * 2) * 3 * DWORD_SIZE + \
2 * RISC_SYNC_INSTRUCTION_SIZE + RISC_WRITECR_INSTRUCTION_SIZE + \
JUMP_INSTRUCTION_SIZE + 2 * NUM_NO_OPS * DWORD_SIZE)
#define ODD_FLD_PAL_PROG_SIZE \
(PAL_FIELD_HEIGHT * 3 * DWORD_SIZE + \
RISC_SYNC_INSTRUCTION_SIZE + RISC_WRITECR_INSTRUCTION_SIZE + \
NUM_NO_OPS * DWORD_SIZE)
#define NTSC_US_VID_PROG_SIZE \
((NTSC_ODD_FLD_LINES + 1) * 3 * DWORD_SIZE + \
RISC_WRITECR_INSTRUCTION_SIZE + JUMP_INSTRUCTION_SIZE + \
NUM_NO_OPS * DWORD_SIZE)
#define NTSC_RISC_BUF_SIZE \
(2 * (RISC_SYNC_INSTRUCTION_SIZE + NTSC_US_VID_PROG_SIZE))
#define FRAME1_VID_PROG_SIZE \
((NTSC_ODD_FLD_LINES + NTSC_FIELD_HEIGHT) * \
3 * DWORD_SIZE + 2 * RISC_SYNC_INSTRUCTION_SIZE + \
RISC_WRITECR_INSTRUCTION_SIZE + JUMP_INSTRUCTION_SIZE + \
2 * NUM_NO_OPS * DWORD_SIZE)
#define ODD_FLD_NTSC_PROG_SIZE \
(NTSC_ODD_FLD_LINES * 3 * DWORD_SIZE + \
RISC_SYNC_INSTRUCTION_SIZE + RISC_WRITECR_INSTRUCTION_SIZE + \
NUM_NO_OPS * DWORD_SIZE)
#endif
#ifndef USE_RISC_NOOP_VIDEO
#define PAL_US_VID_PROG_SIZE \
((PAL_FIELD_HEIGHT + 1) * 3 * DWORD_SIZE + \
RISC_WRITECR_INSTRUCTION_SIZE)
#define PAL_RISC_BUF_SIZE \
(2 * (RISC_SYNC_INSTRUCTION_SIZE + PAL_US_VID_PROG_SIZE))
#define PAL_VID_PROG_SIZE \
((PAL_FIELD_HEIGHT * 2) * 3 * DWORD_SIZE + \
2 * RISC_SYNC_INSTRUCTION_SIZE + RISC_WRITECR_INSTRUCTION_SIZE + \
JUMP_INSTRUCTION_SIZE)
#define ODD_FLD_PAL_PROG_SIZE \
(PAL_FIELD_HEIGHT * 3 * DWORD_SIZE + \
RISC_SYNC_INSTRUCTION_SIZE + RISC_WRITECR_INSTRUCTION_SIZE)
#define ODD_FLD_NTSC_PROG_SIZE \
(NTSC_ODD_FLD_LINES * 3 * DWORD_SIZE + \
RISC_SYNC_INSTRUCTION_SIZE + RISC_WRITECR_INSTRUCTION_SIZE)
#define NTSC_US_VID_PROG_SIZE \
((NTSC_ODD_FLD_LINES + 1) * 3 * DWORD_SIZE + \
RISC_WRITECR_INSTRUCTION_SIZE + JUMP_INSTRUCTION_SIZE)
#define NTSC_RISC_BUF_SIZE \
(2 * (RISC_SYNC_INSTRUCTION_SIZE + NTSC_US_VID_PROG_SIZE))
#define FRAME1_VID_PROG_SIZE \
((NTSC_ODD_FLD_LINES + NTSC_FIELD_HEIGHT) * \
3 * DWORD_SIZE + 2 * RISC_SYNC_INSTRUCTION_SIZE + \
RISC_WRITECR_INSTRUCTION_SIZE + JUMP_INSTRUCTION_SIZE)
#endif

349
drivers/media/pci/cx25821/cx25821-video-upstream.c
View file

@ -97,12 +97,13 @@ int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev,
return 0;
}
static __le32 *cx25821_update_riscprogram(struct cx25821_dev *dev,
static __le32 *cx25821_update_riscprogram(struct cx25821_channel *chan,
__le32 *rp, unsigned int offset,
unsigned int bpl, u32 sync_line,
unsigned int lines, int fifo_enable,
int field_type)
{
struct cx25821_video_out_data *out = chan->out;
unsigned int line, i;
int dist_betwn_starts = bpl * 2;
@ -116,11 +117,11 @@ static __le32 *cx25821_update_riscprogram(struct cx25821_dev *dev,
/* 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(out->_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)) {
|| (line < (NTSC_FIELD_HEIGHT - 1)) || !(out->is_60hz)) {
offset += dist_betwn_starts;
}
}
@ -128,15 +129,15 @@ static __le32 *cx25821_update_riscprogram(struct cx25821_dev *dev,
return rp;
}
static __le32 *cx25821_risc_field_upstream(struct cx25821_dev *dev, __le32 * rp,
static __le32 *cx25821_risc_field_upstream(struct cx25821_channel *chan, __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)
{
struct cx25821_video_out_data *out = chan->out;
unsigned int line, i;
const struct sram_channel *sram_ch =
dev->channels[dev->_channel_upstream_select].sram_channels;
const struct sram_channel *sram_ch = chan->sram_channels;
int dist_betwn_starts = bpl * 2;
/* sync instruction */
@ -155,7 +156,7 @@ static __le32 *cx25821_risc_field_upstream(struct cx25821_dev *dev, __le32 * rp,
*(rp++) = cpu_to_le32(0); /* bits 63-32 */
if ((lines <= NTSC_FIELD_HEIGHT)
|| (line < (NTSC_FIELD_HEIGHT - 1)) || !(dev->_isNTSC))
|| (line < (NTSC_FIELD_HEIGHT - 1)) || !(out->is_60hz))
/* to skip the other field line */
offset += dist_betwn_starts;
@ -173,11 +174,12 @@ static __le32 *cx25821_risc_field_upstream(struct cx25821_dev *dev, __le32 * rp,
return rp;
}
static int cx25821_risc_buffer_upstream(struct cx25821_dev *dev,
static int cx25821_risc_buffer_upstream(struct cx25821_channel *chan,
struct pci_dev *pci,
unsigned int top_offset,
unsigned int bpl, unsigned int lines)
{
struct cx25821_video_out_data *out = chan->out;
__le32 *rp;
int fifo_enable = 0;
/* get line count for single field */
@ -191,7 +193,7 @@ static int cx25821_risc_buffer_upstream(struct cx25821_dev *dev,
unsigned int bottom_offset = bpl;
dma_addr_t risc_phys_jump_addr;
if (dev->_isNTSC) {
if (out->is_60hz) {
odd_num_lines = singlefield_lines + 1;
risc_program_size = FRAME1_VID_PROG_SIZE;
frame_size = (bpl == Y411_LINE_SZ) ?
@ -203,15 +205,15 @@ static int cx25821_risc_buffer_upstream(struct cx25821_dev *dev,
}
/* Virtual address of Risc buffer program */
rp = dev->_dma_virt_addr;
rp = out->_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 +
rp = cx25821_risc_field_upstream(chan, rp,
out->_data_buf_phys_addr +
databuf_offset, top_offset, 0, bpl,
odd_num_lines, fifo_enable, ODD_FIELD);
}
@ -219,18 +221,18 @@ static int cx25821_risc_buffer_upstream(struct cx25821_dev *dev,
fifo_enable = FIFO_DISABLE;
/* Even Field */
rp = cx25821_risc_field_upstream(dev, rp,
dev->_data_buf_phys_addr +
rp = cx25821_risc_field_upstream(chan, rp,
out->_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_phys_jump_addr = out->_dma_phys_start_addr +
risc_program_size;
} else {
risc_phys_jump_addr = dev->_dma_phys_start_addr;
risc_phys_jump_addr = out->_dma_phys_start_addr;
risc_flag = RISC_CNT_INC;
}
@ -245,13 +247,14 @@ static int cx25821_risc_buffer_upstream(struct cx25821_dev *dev,
return 0;
}
void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev)
void cx25821_stop_upstream_video(struct cx25821_channel *chan)
{
const struct sram_channel *sram_ch =
dev->channels[VID_UPSTREAM_SRAM_CHANNEL_I].sram_channels;
struct cx25821_video_out_data *out = chan->out;
struct cx25821_dev *dev = chan->dev;
const struct sram_channel *sram_ch = chan->sram_channels;
u32 tmp = 0;
if (!dev->_is_running) {
if (!out->_is_running) {
pr_info("No video file is currently running so return!\n");
return;
}
@ -264,49 +267,53 @@ void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev)
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);
if (out->_data_buf_virt_addr)
memset(out->_data_buf_virt_addr, 0, out->_data_buf_size);
dev->_is_running = 0;
dev->_is_first_frame = 0;
dev->_frame_count = 0;
dev->_file_status = END_OF_FILE;
out->_is_running = 0;
out->_is_first_frame = 0;
out->_frame_count = 0;
out->_file_status = END_OF_FILE;
kfree(dev->_irq_queues);
dev->_irq_queues = NULL;
destroy_workqueue(out->_irq_queues);
out->_irq_queues = NULL;
kfree(dev->_filename);
kfree(out->_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)
void cx25821_free_mem_upstream(struct cx25821_channel *chan)
{
if (dev->_is_running)
cx25821_stop_upstream_video_ch1(dev);
struct cx25821_video_out_data *out = chan->out;
struct cx25821_dev *dev = chan->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 (out->_is_running)
cx25821_stop_upstream_video(chan);
if (out->_dma_virt_addr) {
pci_free_consistent(dev->pci, out->_risc_size,
out->_dma_virt_addr, out->_dma_phys_addr);
out->_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;
if (out->_data_buf_virt_addr) {
pci_free_consistent(dev->pci, out->_data_buf_size,
out->_data_buf_virt_addr,
out->_data_buf_phys_addr);
out->_data_buf_virt_addr = NULL;
}
}
static int cx25821_get_frame(struct cx25821_dev *dev,
static int cx25821_get_frame(struct cx25821_channel *chan,
const struct sram_channel *sram_ch)
{
struct cx25821_video_out_data *out = chan->out;
struct file *myfile;
int frame_index_temp = dev->_frame_index;
int frame_index_temp = out->_frame_index;
int i = 0;
int line_size = (dev->_pixel_format == PIXEL_FRMT_411) ?
int line_size = (out->_pixel_format == PIXEL_FRMT_411) ?
Y411_LINE_SZ : Y422_LINE_SZ;
int frame_size = 0;
int frame_offset = 0;
@ -316,10 +323,10 @@ static int cx25821_get_frame(struct cx25821_dev *dev,
loff_t pos;
mm_segment_t old_fs;
if (dev->_file_status == END_OF_FILE)
if (out->_file_status == END_OF_FILE)
return 0;
if (dev->_isNTSC)
if (out->is_60hz)
frame_size = (line_size == Y411_LINE_SZ) ?
FRAME_SIZE_NTSC_Y411 : FRAME_SIZE_NTSC_Y422;
else
@ -327,14 +334,14 @@ static int cx25821_get_frame(struct cx25821_dev *dev,
FRAME_SIZE_PAL_Y411 : FRAME_SIZE_PAL_Y422;
frame_offset = (frame_index_temp > 0) ? frame_size : 0;
file_offset = dev->_frame_count * frame_size;
file_offset = out->_frame_count * frame_size;
myfile = filp_open(dev->_filename, O_RDONLY | O_LARGEFILE, 0);
myfile = filp_open(out->_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);
__func__, out->_filename, open_errno);
return PTR_ERR(myfile);
} else {
if (!(myfile->f_op)) {
@ -355,15 +362,15 @@ static int cx25821_get_frame(struct cx25821_dev *dev,
old_fs = get_fs();
set_fs(KERNEL_DS);
for (i = 0; i < dev->_lines_count; i++) {
for (i = 0; i < out->_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 +
&& out->_data_buf_virt_addr != NULL) {
memcpy((void *)(out->_data_buf_virt_addr +
frame_offset / 4), mybuf,
vfs_read_retval);
}
@ -379,9 +386,9 @@ static int cx25821_get_frame(struct cx25821_dev *dev,
}
if (i > 0)
dev->_frame_count++;
out->_frame_count++;
dev->_file_status = (vfs_read_retval == line_size) ?
out->_file_status = (vfs_read_retval == line_size) ?
IN_PROGRESS : END_OF_FILE;
set_fs(old_fs);
@ -393,25 +400,19 @@ static int cx25821_get_frame(struct cx25821_dev *dev,
static void cx25821_vidups_handler(struct work_struct *work)
{
struct cx25821_dev *dev = container_of(work, struct cx25821_dev,
_irq_work_entry);
struct cx25821_video_out_data *out =
container_of(work, struct cx25821_video_out_data, _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);
cx25821_get_frame(out->chan, out->chan->sram_channels);
}
static int cx25821_openfile(struct cx25821_dev *dev,
static int cx25821_openfile(struct cx25821_channel *chan,
const struct sram_channel *sram_ch)
{
struct cx25821_video_out_data *out = chan->out;
struct file *myfile;
int i = 0, j = 0;
int line_size = (dev->_pixel_format == PIXEL_FRMT_411) ?
int line_size = (out->_pixel_format == PIXEL_FRMT_411) ?
Y411_LINE_SZ : Y422_LINE_SZ;
ssize_t vfs_read_retval = 0;
char mybuf[line_size];
@ -419,12 +420,12 @@ static int cx25821_openfile(struct cx25821_dev *dev,
loff_t offset = (unsigned long)0;
mm_segment_t old_fs;
myfile = filp_open(dev->_filename, O_RDONLY | O_LARGEFILE, 0);
myfile = filp_open(out->_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);
__func__, out->_filename, open_errno);
return PTR_ERR(myfile);
} else {
if (!(myfile->f_op)) {
@ -446,7 +447,7 @@ static int cx25821_openfile(struct cx25821_dev *dev,
set_fs(KERNEL_DS);
for (j = 0; j < NUM_FRAMES; j++) {
for (i = 0; i < dev->_lines_count; i++) {
for (i = 0; i < out->_lines_count; i++) {
pos = offset;
vfs_read_retval = vfs_read(myfile, mybuf,
@ -454,8 +455,8 @@ static int cx25821_openfile(struct cx25821_dev *dev,
if (vfs_read_retval > 0
&& vfs_read_retval == line_size
&& dev->_data_buf_virt_addr != NULL) {
memcpy((void *)(dev->
&& out->_data_buf_virt_addr != NULL) {
memcpy((void *)(out->
_data_buf_virt_addr +
offset / 4), mybuf,
vfs_read_retval);
@ -471,13 +472,13 @@ static int cx25821_openfile(struct cx25821_dev *dev,
}
if (i > 0)
dev->_frame_count++;
out->_frame_count++;
if (vfs_read_retval < line_size)
break;
}
dev->_file_status = (vfs_read_retval == line_size) ?
out->_file_status = (vfs_read_retval == line_size) ?
IN_PROGRESS : END_OF_FILE;
set_fs(old_fs);
@ -488,58 +489,60 @@ static int cx25821_openfile(struct cx25821_dev *dev,
return 0;
}
static int cx25821_upstream_buffer_prepare(struct cx25821_dev *dev,
static int cx25821_upstream_buffer_prepare(struct cx25821_channel *chan,
const struct sram_channel *sram_ch,
int bpl)
{
struct cx25821_video_out_data *out = chan->out;
struct cx25821_dev *dev = chan->dev;
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);
if (out->_dma_virt_addr != NULL)
pci_free_consistent(dev->pci, out->upstream_riscbuf_size,
out->_dma_virt_addr, out->_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;
out->_dma_virt_addr = pci_alloc_consistent(dev->pci,
out->upstream_riscbuf_size, &dma_addr);
out->_dma_virt_start_addr = out->_dma_virt_addr;
out->_dma_phys_start_addr = dma_addr;
out->_dma_phys_addr = dma_addr;
out->_risc_size = out->upstream_riscbuf_size;
if (!dev->_dma_virt_addr) {
if (!out->_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);
memset(out->_dma_virt_addr, 0, out->_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);
if (out->_data_buf_virt_addr != NULL)
pci_free_consistent(dev->pci, out->upstream_databuf_size,
out->_data_buf_virt_addr,
out->_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;
out->_data_buf_virt_addr = pci_alloc_consistent(dev->pci,
out->upstream_databuf_size, &data_dma_addr);
out->_data_buf_phys_addr = data_dma_addr;
out->_data_buf_size = out->upstream_databuf_size;
if (!dev->_data_buf_virt_addr) {
if (!out->_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);
memset(out->_data_buf_virt_addr, 0, out->_data_buf_size);
ret = cx25821_openfile(dev, sram_ch);
ret = cx25821_openfile(chan, sram_ch);
if (ret < 0)
return ret;
/* Create RISC programs */
ret = cx25821_risc_buffer_upstream(dev, dev->pci, 0, bpl,
dev->_lines_count);
ret = cx25821_risc_buffer_upstream(chan, dev->pci, 0, bpl,
out->_lines_count);
if (ret < 0) {
pr_info("Failed creating Video Upstream Risc programs!\n");
goto error;
@ -551,11 +554,12 @@ static int cx25821_upstream_buffer_prepare(struct cx25821_dev *dev,
return ret;
}
static int cx25821_video_upstream_irq(struct cx25821_dev *dev, int chan_num,
u32 status)
static int cx25821_video_upstream_irq(struct cx25821_channel *chan, u32 status)
{
struct cx25821_video_out_data *out = chan->out;
struct cx25821_dev *dev = chan->dev;
u32 int_msk_tmp;
const struct sram_channel *channel = dev->channels[chan_num].sram_channels;
const struct sram_channel *channel = chan->sram_channels;
int singlefield_lines = NTSC_FIELD_HEIGHT;
int line_size_in_bytes = Y422_LINE_SZ;
int odd_risc_prog_size = 0;
@ -574,14 +578,14 @@ static int cx25821_video_upstream_irq(struct cx25821_dev *dev, int chan_num,
spin_lock(&dev->slock);
dev->_frame_index = prog_cnt;
out->_frame_index = prog_cnt;
queue_work(dev->_irq_queues, &dev->_irq_work_entry);
queue_work(out->_irq_queues, &out->_irq_work_entry);
if (dev->_is_first_frame) {
dev->_is_first_frame = 0;
if (out->_is_first_frame) {
out->_is_first_frame = 0;
if (dev->_isNTSC) {
if (out->is_60hz) {
singlefield_lines += 1;
odd_risc_prog_size = ODD_FLD_NTSC_PROG_SIZE;
} else {
@ -589,17 +593,17 @@ static int cx25821_video_upstream_irq(struct cx25821_dev *dev, int chan_num,
odd_risc_prog_size = ODD_FLD_PAL_PROG_SIZE;
}
if (dev->_dma_virt_start_addr != NULL) {
if (out->_dma_virt_start_addr != NULL) {
line_size_in_bytes =
(dev->_pixel_format ==
(out->_pixel_format ==
PIXEL_FRMT_411) ? Y411_LINE_SZ :
Y422_LINE_SZ;
risc_phys_jump_addr =
dev->_dma_phys_start_addr +
out->_dma_phys_start_addr +
odd_risc_prog_size;
rp = cx25821_update_riscprogram(dev,
dev->_dma_virt_start_addr, TOP_OFFSET,
rp = cx25821_update_riscprogram(chan,
out->_dma_virt_start_addr, TOP_OFFSET,
line_size_in_bytes, 0x0,
singlefield_lines, FIFO_DISABLE,
ODD_FIELD);
@ -626,8 +630,8 @@ static int cx25821_video_upstream_irq(struct cx25821_dev *dev, int chan_num,
__func__);
}
if (dev->_file_status == END_OF_FILE) {
pr_err("EOF Channel 1 Framecount = %d\n", dev->_frame_count);
if (out->_file_status == END_OF_FILE) {
pr_err("EOF Channel 1 Framecount = %d\n", out->_frame_count);
return -1;
}
/* ElSE, set the interrupt mask register, re-enable irq. */
@ -639,47 +643,41 @@ static int cx25821_video_upstream_irq(struct cx25821_dev *dev, int chan_num,
static irqreturn_t cx25821_upstream_irq(int irq, void *dev_id)
{
struct cx25821_dev *dev = dev_id;
struct cx25821_channel *chan = dev_id;
struct cx25821_dev *dev = chan->dev;
u32 vid_status;
int handled = 0;
int channel_num = 0;
const struct sram_channel *sram_ch;
if (!dev)
return -1;
channel_num = VID_UPSTREAM_SRAM_CHANNEL_I;
sram_ch = dev->channels[channel_num].sram_channels;
sram_ch = chan->sram_channels;
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;
handled = cx25821_video_upstream_irq(chan, vid_status);
return IRQ_RETVAL(handled);
}
static void cx25821_set_pixelengine(struct cx25821_dev *dev,
static void cx25821_set_pixelengine(struct cx25821_channel *chan,
const struct sram_channel *ch,
int pix_format)
{
struct cx25821_video_out_data *out = chan->out;
struct cx25821_dev *dev = chan->dev;
int width = WIDTH_D1;
int height = dev->_lines_count;
int height = out->_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;
value |= out->is_60hz ? 0 : 0x10;
cx_write(ch->vid_fmt_ctl, value);
/* set number of active pixels in each line.
@ -689,7 +687,7 @@ static void cx25821_set_pixelengine(struct cx25821_dev *dev,
num_lines = (height / 2) & 0x3FF;
odd_num_lines = num_lines;
if (dev->_isNTSC)
if (out->is_60hz)
odd_num_lines += 1;
value = (num_lines << 16) | odd_num_lines;
@ -700,9 +698,11 @@ static void cx25821_set_pixelengine(struct cx25821_dev *dev,
cx_write(ch->vid_cdt_size, VID_CDT_SIZE >> 3);
}
static int cx25821_start_video_dma_upstream(struct cx25821_dev *dev,
static int cx25821_start_video_dma_upstream(struct cx25821_channel *chan,
const struct sram_channel *sram_ch)
{
struct cx25821_video_out_data *out = chan->out;
struct cx25821_dev *dev = chan->dev;
u32 tmp = 0;
int err = 0;
@ -715,7 +715,7 @@ static int cx25821_start_video_dma_upstream(struct cx25821_dev *dev,
/* 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);
cx_write(sram_ch->cmds_start + 0, out->_dma_phys_addr);
/* Risc IPC High 64 bits 63-32 */
cx_write(sram_ch->cmds_start + 4, 0);
@ -731,7 +731,7 @@ static int cx25821_start_video_dma_upstream(struct cx25821_dev *dev,
cx_write(sram_ch->int_msk, tmp |= _intr_msk);
err = request_irq(dev->pci->irq, cx25821_upstream_irq,
IRQF_SHARED, dev->name, dev);
IRQF_SHARED, dev->name, chan);
if (err < 0) {
pr_err("%s: can't get upstream IRQ %d\n",
dev->name, dev->pci->irq);
@ -742,8 +742,8 @@ static int cx25821_start_video_dma_upstream(struct cx25821_dev *dev,
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;
out->_is_running = 1;
out->_is_first_frame = 1;
return 0;
@ -752,9 +752,11 @@ static int cx25821_start_video_dma_upstream(struct cx25821_dev *dev,
return err;
}
int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, int channel_select,
int cx25821_vidupstream_init(struct cx25821_channel *chan,
int pixel_format)
{
struct cx25821_video_out_data *out = chan->out;
struct cx25821_dev *dev = chan->dev;
const struct sram_channel *sram_ch;
u32 tmp;
int err = 0;
@ -762,18 +764,17 @@ int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, int channel_select,
int risc_buffer_size = 0;
int str_length = 0;
if (dev->_is_running) {
if (out->_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;
sram_ch = chan->sram_channels;
INIT_WORK(&dev->_irq_work_entry, cx25821_vidups_handler);
dev->_irq_queues = create_singlethread_workqueue("cx25821_workqueue");
INIT_WORK(&out->_irq_work_entry, cx25821_vidups_handler);
out->_irq_queues = create_singlethread_workqueue("cx25821_workqueue");
if (!dev->_irq_queues) {
if (!out->_irq_queues) {
pr_err("create_singlethread_workqueue() for Video FAILED!\n");
return -ENOMEM;
}
@ -783,76 +784,76 @@ int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, int channel_select,
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) ?
out->_is_running = 0;
out->_frame_count = 0;
out->_file_status = RESET_STATUS;
out->_lines_count = out->is_60hz ? 480 : 576;
out->_pixel_format = pixel_format;
out->_line_size = (out->_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 ?
data_frame_size = out->is_60hz ? NTSC_DATA_BUF_SZ : PAL_DATA_BUF_SZ;
risc_buffer_size = out->is_60hz ?
NTSC_RISC_BUF_SIZE : PAL_RISC_BUF_SIZE;
if (dev->input_filename) {
str_length = strlen(dev->input_filename);
dev->_filename = kmemdup(dev->input_filename, str_length + 1,
if (out->input_filename) {
str_length = strlen(out->input_filename);
out->_filename = kmemdup(out->input_filename, str_length + 1,
GFP_KERNEL);
if (!dev->_filename) {
if (!out->_filename) {
err = -ENOENT;
goto error;
}
} else {
str_length = strlen(dev->_defaultname);
dev->_filename = kmemdup(dev->_defaultname, str_length + 1,
str_length = strlen(out->_defaultname);
out->_filename = kmemdup(out->_defaultname, str_length + 1,
GFP_KERNEL);
if (!dev->_filename) {
if (!out->_filename) {
err = -ENOENT;
goto error;
}
}
/* Default if filename is empty string */
if (strcmp(dev->_filename, "") == 0) {
if (dev->_isNTSC) {
dev->_filename =
(dev->_pixel_format == PIXEL_FRMT_411) ?
if (strcmp(out->_filename, "") == 0) {
if (out->is_60hz) {
out->_filename =
(out->_pixel_format == PIXEL_FRMT_411) ?
"/root/vid411.yuv" : "/root/vidtest.yuv";
} else {
dev->_filename =
(dev->_pixel_format == PIXEL_FRMT_411) ?
out->_filename =
(out->_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) ?
out->_is_running = 0;
out->_frame_count = 0;
out->_file_status = RESET_STATUS;
out->_lines_count = out->is_60hz ? 480 : 576;
out->_pixel_format = pixel_format;
out->_line_size = (out->_pixel_format == PIXEL_FRMT_422) ?
(WIDTH_D1 * 2) : (WIDTH_D1 * 3) / 2;
err = cx25821_sram_channel_setup_upstream(dev, sram_ch,
dev->_line_size, 0);
out->_line_size, 0);
/* setup fifo + format */
cx25821_set_pixelengine(dev, sram_ch, dev->_pixel_format);
cx25821_set_pixelengine(chan, sram_ch, out->_pixel_format);
dev->upstream_riscbuf_size = risc_buffer_size * 2;
dev->upstream_databuf_size = data_frame_size * 2;
out->upstream_riscbuf_size = risc_buffer_size * 2;
out->upstream_databuf_size = data_frame_size * 2;
/* Allocating buffers and prepare RISC program */
err = cx25821_upstream_buffer_prepare(dev, sram_ch, dev->_line_size);
err = cx25821_upstream_buffer_prepare(chan, sram_ch, out->_line_size);
if (err < 0) {
pr_err("%s: Failed to set up Video upstream buffers!\n",
dev->name);
goto error;
}
cx25821_start_video_dma_upstream(dev, sram_ch);
cx25821_start_video_dma_upstream(chan, sram_ch);
return 0;

19
drivers/media/pci/cx25821/cx25821-video.c
View file

@ -893,6 +893,20 @@ static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
return 0;
}
static int video_out_release(struct file *file)
{
struct cx25821_channel *chan = video_drvdata(file);
struct cx25821_video_out_data *out = chan->out;
struct cx25821_dev *dev = chan->dev;
mutex_lock(&dev->lock);
if ((chan->id == SRAM_CH09 || chan->id == SRAM_CH10) && out->_is_running)
cx25821_stop_upstream_video(chan);
mutex_unlock(&dev->lock);
return v4l2_fh_release(file);
}
static const struct v4l2_ctrl_ops cx25821_ctrl_ops = {
.s_ctrl = cx25821_s_ctrl,
};
@ -941,7 +955,7 @@ static const struct video_device cx25821_video_device = {
static const struct v4l2_file_operations video_out_fops = {
.owner = THIS_MODULE,
.open = v4l2_fh_open,
.release = v4l2_fh_release,
.release = video_out_release,
.unlocked_ioctl = video_ioctl2,
};
@ -1017,6 +1031,9 @@ int cx25821_video_register(struct cx25821_dev *dev)
err = v4l2_ctrl_handler_setup(hdl);
if (err)
goto fail_unreg;
} else {
chan->out = &dev->vid_out_data[i - SRAM_CH09];
chan->out->chan = chan;
}
cx25821_risc_stopper(dev->pci, &chan->dma_vidq.stopper,

129
drivers/media/pci/cx25821/cx25821.h
View file

@ -172,6 +172,42 @@ struct cx25821_data {
struct cx25821_dev;
struct cx25821_channel;
struct cx25821_video_out_data {
struct cx25821_channel *chan;
int _line_size;
int _prog_cnt;
int _pixel_format;
int _is_first_frame;
int _is_running;
int _file_status;
int _lines_count;
int _frame_count;
unsigned int _risc_size;
__le32 *_dma_virt_start_addr;
__le32 *_dma_virt_addr;
dma_addr_t _dma_phys_addr;
dma_addr_t _dma_phys_start_addr;
unsigned int _data_buf_size;
__le32 *_data_buf_virt_addr;
dma_addr_t _data_buf_phys_addr;
u32 upstream_riscbuf_size;
u32 upstream_databuf_size;
struct workqueue_struct *_irq_queues;
struct work_struct _irq_work_entry;
int is_60hz;
int _frame_index;
char *input_filename;
char *vid_stdname;
int pixel_format;
char *_filename;
char *_defaultname;
};
struct cx25821_channel {
unsigned id;
struct cx25821_dev *dev;
@ -191,6 +227,9 @@ struct cx25821_channel {
int pixel_formats;
int use_cif_resolution;
int cif_width;
/* video output data for the video output channel */
struct cx25821_video_out_data *out;
};
struct snd_card;
@ -250,83 +289,18 @@ struct cx25821_dev {
__le32 *_audiodata_buf_virt_addr;
dma_addr_t _audiodata_buf_phys_addr;
char *_audiofilename;
u32 audio_upstream_riscbuf_size;
u32 audio_upstream_databuf_size;
int _audioframe_index;
struct workqueue_struct *_irq_audio_queues;
struct work_struct _audio_work_entry;
char *input_audiofilename;
/* V4l */
spinlock_t slock;
/* Video Upstream */
int _line_size;
int _prog_cnt;
int _pixel_format;
int _is_first_frame;
int _is_running;
int _file_status;
int _lines_count;
int _frame_count;
int _channel_upstream_select;
unsigned int _risc_size;
__le32 *_dma_virt_start_addr;
__le32 *_dma_virt_addr;
dma_addr_t _dma_phys_addr;
dma_addr_t _dma_phys_start_addr;
unsigned int _data_buf_size;
__le32 *_data_buf_virt_addr;
dma_addr_t _data_buf_phys_addr;
char *_filename;
char *_defaultname;
int _line_size_ch2;
int _prog_cnt_ch2;
int _pixel_format_ch2;
int _is_first_frame_ch2;
int _is_running_ch2;
int _file_status_ch2;
int _lines_count_ch2;
int _frame_count_ch2;
int _channel2_upstream_select;
unsigned int _risc_size_ch2;
__le32 *_dma_virt_start_addr_ch2;
__le32 *_dma_virt_addr_ch2;
dma_addr_t _dma_phys_addr_ch2;
dma_addr_t _dma_phys_start_addr_ch2;
unsigned int _data_buf_size_ch2;
__le32 *_data_buf_virt_addr_ch2;
dma_addr_t _data_buf_phys_addr_ch2;
char *_filename_ch2;
char *_defaultname_ch2;
u32 upstream_riscbuf_size;
u32 upstream_databuf_size;
u32 upstream_riscbuf_size_ch2;
u32 upstream_databuf_size_ch2;
u32 audio_upstream_riscbuf_size;
u32 audio_upstream_databuf_size;
int _isNTSC;
int _frame_index;
int _audioframe_index;
struct workqueue_struct *_irq_queues;
struct work_struct _irq_work_entry;
struct workqueue_struct *_irq_queues_ch2;
struct work_struct _irq_work_entry_ch2;
struct workqueue_struct *_irq_audio_queues;
struct work_struct _audio_work_entry;
char *input_filename;
char *input_filename_ch2;
int _frame_index_ch2;
int _isNTSC_ch2;
char *vid_stdname_ch2;
int pixel_format_ch2;
int channel_select_ch2;
int command_ch2;
char *input_audiofilename;
char *vid_stdname;
int pixel_format;
int channel_select;
int command;
struct cx25821_video_out_data vid_out_data[2];
};
static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev)
@ -463,17 +437,12 @@ extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev,
const struct sram_channel *ch,
unsigned int bpl, u32 risc);
extern int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev,
int channel_select, int pixel_format);
extern int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev,
int channel_select, int pixel_format);
extern int cx25821_vidupstream_init(struct cx25821_channel *chan, int pixel_format);
extern int cx25821_audio_upstream_init(struct cx25821_dev *dev,
int channel_select);
extern void cx25821_free_mem_upstream_ch1(struct cx25821_dev *dev);
extern void cx25821_free_mem_upstream_ch2(struct cx25821_dev *dev);
extern void cx25821_free_mem_upstream(struct cx25821_channel *chan);
extern void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev);
extern void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev);
extern void cx25821_stop_upstream_video_ch2(struct cx25821_dev *dev);
extern void cx25821_stop_upstream_video(struct cx25821_channel *chan);
extern void cx25821_stop_upstream_audio(struct cx25821_dev *dev);
extern int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev,
const struct sram_channel *ch,