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path: root/drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c
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Diffstat (limited to 'drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c')
-rw-r--r--drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c800
1 files changed, 0 insertions, 800 deletions
diff --git a/drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c b/drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c
deleted file mode 100644
index 2381bdce99fd..000000000000
--- a/drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c
+++ /dev/null
@@ -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;
-}

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