+++ /dev/null
-/*
- * Driver for the Conexant CX25821 PCIe bridge
- *
- * Copyright (C) 2009 Conexant Systems Inc.
- * Authors <hiep.huynh@conexant.com>, <shu.lin@conexant.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- *
- * GNU General Public License for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include "cx25821-video.h"
-#include "cx25821-audio-upstream.h"
-
-#include <linux/fs.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/syscalls.h>
-#include <linux/file.h>
-#include <linux/fcntl.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/uaccess.h>
-
-MODULE_DESCRIPTION("v4l2 driver module for cx25821 based TV cards");
-MODULE_AUTHOR("Hiep Huynh <hiep.huynh@conexant.com>");
-MODULE_LICENSE("GPL");
-
-static int _intr_msk = FLD_AUD_SRC_RISCI1 | FLD_AUD_SRC_OF |
- FLD_AUD_SRC_SYNC | FLD_AUD_SRC_OPC_ERR;
-
-static int cx25821_sram_channel_setup_upstream_audio(struct cx25821_dev *dev,
- const struct sram_channel *ch,
- unsigned int bpl, u32 risc)
-{
- unsigned int i, lines;
- u32 cdt;
-
- if (ch->cmds_start == 0) {
- cx_write(ch->ptr1_reg, 0);
- cx_write(ch->ptr2_reg, 0);
- cx_write(ch->cnt2_reg, 0);
- cx_write(ch->cnt1_reg, 0);
- return 0;
- }
-
- bpl = (bpl + 7) & ~7; /* alignment */
- cdt = ch->cdt;
- lines = ch->fifo_size / bpl;
-
- if (lines > 3)
- lines = 3;
-
- BUG_ON(lines < 2);
-
- /* write CDT */
- for (i = 0; i < lines; i++) {
- cx_write(cdt + 16 * i, ch->fifo_start + bpl * i);
- cx_write(cdt + 16 * i + 4, 0);
- cx_write(cdt + 16 * i + 8, 0);
- cx_write(cdt + 16 * i + 12, 0);
- }
-
- /* write CMDS */
- cx_write(ch->cmds_start + 0, risc);
-
- cx_write(ch->cmds_start + 4, 0);
- cx_write(ch->cmds_start + 8, cdt);
- cx_write(ch->cmds_start + 12, AUDIO_CDT_SIZE_QW);
- cx_write(ch->cmds_start + 16, ch->ctrl_start);
-
- /* IQ size */
- cx_write(ch->cmds_start + 20, AUDIO_IQ_SIZE_DW);
-
- for (i = 24; i < 80; i += 4)
- cx_write(ch->cmds_start + i, 0);
-
- /* fill registers */
- cx_write(ch->ptr1_reg, ch->fifo_start);
- cx_write(ch->ptr2_reg, cdt);
- cx_write(ch->cnt2_reg, AUDIO_CDT_SIZE_QW);
- cx_write(ch->cnt1_reg, AUDIO_CLUSTER_SIZE_QW - 1);
-
- return 0;
-}
-
-static __le32 *cx25821_risc_field_upstream_audio(struct cx25821_dev *dev,
- __le32 *rp,
- dma_addr_t databuf_phys_addr,
- unsigned int bpl,
- int fifo_enable)
-{
- unsigned int line;
- const struct sram_channel *sram_ch =
- dev->channels[dev->_audio_upstream_channel].sram_channels;
- int offset = 0;
-
- /* scan lines */
- for (line = 0; line < LINES_PER_AUDIO_BUFFER; line++) {
- *(rp++) = cpu_to_le32(RISC_READ | RISC_SOL | RISC_EOL | bpl);
- *(rp++) = cpu_to_le32(databuf_phys_addr + offset);
- *(rp++) = cpu_to_le32(0); /* bits 63-32 */
-
- /* Check if we need to enable the FIFO
- * after the first 3 lines.
- * For the upstream audio channel,
- * the risc engine will enable the FIFO */
- if (fifo_enable && line == 2) {
- *(rp++) = RISC_WRITECR;
- *(rp++) = sram_ch->dma_ctl;
- *(rp++) = sram_ch->fld_aud_fifo_en;
- *(rp++) = 0x00000020;
- }
-
- offset += AUDIO_LINE_SIZE;
- }
-
- return rp;
-}
-
-static int cx25821_risc_buffer_upstream_audio(struct cx25821_dev *dev,
- struct pci_dev *pci,
- unsigned int bpl, unsigned int lines)
-{
- __le32 *rp;
- int fifo_enable = 0;
- int frame = 0, i = 0;
- int frame_size = AUDIO_DATA_BUF_SZ;
- int databuf_offset = 0;
- int risc_flag = RISC_CNT_INC;
- dma_addr_t risc_phys_jump_addr;
-
- /* Virtual address of Risc buffer program */
- rp = dev->_risc_virt_addr;
-
- /* sync instruction */
- *(rp++) = cpu_to_le32(RISC_RESYNC | AUDIO_SYNC_LINE);
-
- for (frame = 0; frame < NUM_AUDIO_FRAMES; frame++) {
- databuf_offset = frame_size * frame;
-
- if (frame == 0) {
- fifo_enable = 1;
- risc_flag = RISC_CNT_RESET;
- } else {
- fifo_enable = 0;
- risc_flag = RISC_CNT_INC;
- }
-
- /* Calculate physical jump address */
- if ((frame + 1) == NUM_AUDIO_FRAMES) {
- risc_phys_jump_addr =
- dev->_risc_phys_start_addr +
- RISC_SYNC_INSTRUCTION_SIZE;
- } else {
- risc_phys_jump_addr =
- dev->_risc_phys_start_addr +
- RISC_SYNC_INSTRUCTION_SIZE +
- AUDIO_RISC_DMA_BUF_SIZE * (frame + 1);
- }
-
- rp = cx25821_risc_field_upstream_audio(dev, rp,
- dev->_audiodata_buf_phys_addr + databuf_offset,
- bpl, fifo_enable);
-
- if (USE_RISC_NOOP_AUDIO) {
- for (i = 0; i < NUM_NO_OPS; i++)
- *(rp++) = cpu_to_le32(RISC_NOOP);
- }
-
- /* Loop to (Nth)FrameRISC or to Start of Risc program &
- * generate IRQ */
- *(rp++) = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | risc_flag);
- *(rp++) = cpu_to_le32(risc_phys_jump_addr);
- *(rp++) = cpu_to_le32(0);
-
- /* Recalculate virtual address based on frame index */
- rp = dev->_risc_virt_addr + RISC_SYNC_INSTRUCTION_SIZE / 4 +
- (AUDIO_RISC_DMA_BUF_SIZE * (frame + 1) / 4);
- }
-
- return 0;
-}
-
-static void cx25821_free_memory_audio(struct cx25821_dev *dev)
-{
- if (dev->_risc_virt_addr) {
- pci_free_consistent(dev->pci, dev->_audiorisc_size,
- dev->_risc_virt_addr, dev->_risc_phys_addr);
- dev->_risc_virt_addr = NULL;
- }
-
- if (dev->_audiodata_buf_virt_addr) {
- pci_free_consistent(dev->pci, dev->_audiodata_buf_size,
- dev->_audiodata_buf_virt_addr,
- dev->_audiodata_buf_phys_addr);
- dev->_audiodata_buf_virt_addr = NULL;
- }
-}
-
-void cx25821_stop_upstream_audio(struct cx25821_dev *dev)
-{
- const struct sram_channel *sram_ch =
- dev->channels[AUDIO_UPSTREAM_SRAM_CHANNEL_B].sram_channels;
- u32 tmp = 0;
-
- if (!dev->_audio_is_running) {
- printk(KERN_DEBUG
- pr_fmt("No audio file is currently running so return!\n"));
- return;
- }
- /* Disable RISC interrupts */
- cx_write(sram_ch->int_msk, 0);
-
- /* Turn OFF risc and fifo enable in AUD_DMA_CNTRL */
- tmp = cx_read(sram_ch->dma_ctl);
- cx_write(sram_ch->dma_ctl,
- tmp & ~(sram_ch->fld_aud_fifo_en | sram_ch->fld_aud_risc_en));
-
- /* Clear data buffer memory */
- if (dev->_audiodata_buf_virt_addr)
- memset(dev->_audiodata_buf_virt_addr, 0,
- dev->_audiodata_buf_size);
-
- dev->_audio_is_running = 0;
- dev->_is_first_audio_frame = 0;
- dev->_audioframe_count = 0;
- dev->_audiofile_status = END_OF_FILE;
-
- flush_work(&dev->_audio_work_entry);
-
- kfree(dev->_audiofilename);
-}
-
-void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev)
-{
- if (dev->_audio_is_running)
- cx25821_stop_upstream_audio(dev);
-
- cx25821_free_memory_audio(dev);
-}
-
-static int cx25821_get_audio_data(struct cx25821_dev *dev,
- const struct sram_channel *sram_ch)
-{
- struct file *file;
- int frame_index_temp = dev->_audioframe_index;
- int i = 0;
- int frame_size = AUDIO_DATA_BUF_SZ;
- int frame_offset = frame_size * frame_index_temp;
- char mybuf[AUDIO_LINE_SIZE];
- loff_t file_offset = dev->_audioframe_count * frame_size;
- char *p = NULL;
-
- if (dev->_audiofile_status == END_OF_FILE)
- return 0;
-
- file = filp_open(dev->_audiofilename, O_RDONLY | O_LARGEFILE, 0);
- if (IS_ERR(file)) {
- pr_err("%s(): ERROR opening file(%s) with errno = %ld!\n",
- __func__, dev->_audiofilename, -PTR_ERR(file));
- return PTR_ERR(file);
- }
-
- if (dev->_audiodata_buf_virt_addr)
- p = (char *)dev->_audiodata_buf_virt_addr + frame_offset;
-
- for (i = 0; i < dev->_audio_lines_count; i++) {
- int n = kernel_read(file, mybuf, AUDIO_LINE_SIZE, &file_offset);
- if (n < AUDIO_LINE_SIZE) {
- pr_info("Done: exit %s() since no more bytes to read from Audio file\n",
- __func__);
- dev->_audiofile_status = END_OF_FILE;
- fput(file);
- return 0;
- }
- dev->_audiofile_status = IN_PROGRESS;
- if (p) {
- memcpy(p, mybuf, n);
- p += n;
- }
- }
- dev->_audioframe_count++;
- fput(file);
-
- return 0;
-}
-
-static void cx25821_audioups_handler(struct work_struct *work)
-{
- struct cx25821_dev *dev = container_of(work, struct cx25821_dev,
- _audio_work_entry);
-
- if (!dev) {
- pr_err("ERROR %s(): since container_of(work_struct) FAILED!\n",
- __func__);
- return;
- }
-
- cx25821_get_audio_data(dev, dev->channels[dev->_audio_upstream_channel].
- sram_channels);
-}
-
-static int cx25821_openfile_audio(struct cx25821_dev *dev,
- const struct sram_channel *sram_ch)
-{
- char *p = (void *)dev->_audiodata_buf_virt_addr;
- struct file *file;
- loff_t file_offset = 0;
- int i, j;
-
- file = filp_open(dev->_audiofilename, O_RDONLY | O_LARGEFILE, 0);
- if (IS_ERR(file)) {
- pr_err("%s(): ERROR opening file(%s) with errno = %ld!\n",
- __func__, dev->_audiofilename, PTR_ERR(file));
- return PTR_ERR(file);
- }
-
- for (j = 0; j < NUM_AUDIO_FRAMES; j++) {
- for (i = 0; i < dev->_audio_lines_count; i++) {
- char buf[AUDIO_LINE_SIZE];
- loff_t offset = file_offset;
- int n = kernel_read(file, buf, AUDIO_LINE_SIZE, &file_offset);
-
- if (n < AUDIO_LINE_SIZE) {
- pr_info("Done: exit %s() since no more bytes to read from Audio file\n",
- __func__);
- dev->_audiofile_status = END_OF_FILE;
- fput(file);
- return 0;
- }
-
- if (p)
- memcpy(p + offset, buf, n);
- }
- dev->_audioframe_count++;
- }
- dev->_audiofile_status = IN_PROGRESS;
- fput(file);
- return 0;
-}
-
-static int cx25821_audio_upstream_buffer_prepare(struct cx25821_dev *dev,
- const struct sram_channel *sram_ch,
- int bpl)
-{
- int ret = 0;
- dma_addr_t dma_addr;
- dma_addr_t data_dma_addr;
-
- cx25821_free_memory_audio(dev);
-
- dev->_risc_virt_addr = pci_alloc_consistent(dev->pci,
- dev->audio_upstream_riscbuf_size, &dma_addr);
- dev->_risc_virt_start_addr = dev->_risc_virt_addr;
- dev->_risc_phys_start_addr = dma_addr;
- dev->_risc_phys_addr = dma_addr;
- dev->_audiorisc_size = dev->audio_upstream_riscbuf_size;
-
- if (!dev->_risc_virt_addr) {
- printk(KERN_DEBUG
- pr_fmt("ERROR: pci_alloc_consistent() FAILED to allocate memory for RISC program! Returning\n"));
- return -ENOMEM;
- }
- /* Clear out memory at address */
- memset(dev->_risc_virt_addr, 0, dev->_audiorisc_size);
-
- /* For Audio Data buffer allocation */
- dev->_audiodata_buf_virt_addr = pci_alloc_consistent(dev->pci,
- dev->audio_upstream_databuf_size, &data_dma_addr);
- dev->_audiodata_buf_phys_addr = data_dma_addr;
- dev->_audiodata_buf_size = dev->audio_upstream_databuf_size;
-
- if (!dev->_audiodata_buf_virt_addr) {
- printk(KERN_DEBUG
- pr_fmt("ERROR: pci_alloc_consistent() FAILED to allocate memory for data buffer! Returning\n"));
- return -ENOMEM;
- }
- /* Clear out memory at address */
- memset(dev->_audiodata_buf_virt_addr, 0, dev->_audiodata_buf_size);
-
- ret = cx25821_openfile_audio(dev, sram_ch);
- if (ret < 0)
- return ret;
-
- /* Creating RISC programs */
- ret = cx25821_risc_buffer_upstream_audio(dev, dev->pci, bpl,
- dev->_audio_lines_count);
- if (ret < 0) {
- printk(KERN_DEBUG
- pr_fmt("ERROR creating audio upstream RISC programs!\n"));
- goto error;
- }
-
- return 0;
-
-error:
- return ret;
-}
-
-static int cx25821_audio_upstream_irq(struct cx25821_dev *dev, int chan_num,
- u32 status)
-{
- int i = 0;
- u32 int_msk_tmp;
- const struct sram_channel *channel = dev->channels[chan_num].sram_channels;
- dma_addr_t risc_phys_jump_addr;
- __le32 *rp;
-
- if (status & FLD_AUD_SRC_RISCI1) {
- /* Get interrupt_index of the program that interrupted */
- u32 prog_cnt = cx_read(channel->gpcnt);
-
- /* Since we've identified our IRQ, clear our bits from the
- * interrupt mask and interrupt status registers */
- cx_write(channel->int_msk, 0);
- cx_write(channel->int_stat, cx_read(channel->int_stat));
-
- spin_lock(&dev->slock);
-
- while (prog_cnt != dev->_last_index_irq) {
- /* Update _last_index_irq */
- if (dev->_last_index_irq < (NUMBER_OF_PROGRAMS - 1))
- dev->_last_index_irq++;
- else
- dev->_last_index_irq = 0;
-
- dev->_audioframe_index = dev->_last_index_irq;
-
- schedule_work(&dev->_audio_work_entry);
- }
-
- if (dev->_is_first_audio_frame) {
- dev->_is_first_audio_frame = 0;
-
- if (dev->_risc_virt_start_addr != NULL) {
- risc_phys_jump_addr =
- dev->_risc_phys_start_addr +
- RISC_SYNC_INSTRUCTION_SIZE +
- AUDIO_RISC_DMA_BUF_SIZE;
-
- rp = cx25821_risc_field_upstream_audio(dev,
- dev->_risc_virt_start_addr + 1,
- dev->_audiodata_buf_phys_addr,
- AUDIO_LINE_SIZE, FIFO_DISABLE);
-
- if (USE_RISC_NOOP_AUDIO) {
- for (i = 0; i < NUM_NO_OPS; i++) {
- *(rp++) =
- cpu_to_le32(RISC_NOOP);
- }
- }
- /* Jump to 2nd Audio Frame */
- *(rp++) = cpu_to_le32(RISC_JUMP | RISC_IRQ1 |
- RISC_CNT_RESET);
- *(rp++) = cpu_to_le32(risc_phys_jump_addr);
- *(rp++) = cpu_to_le32(0);
- }
- }
-
- spin_unlock(&dev->slock);
- } else {
- if (status & FLD_AUD_SRC_OF)
- pr_warn("%s(): Audio Received Overflow Error Interrupt!\n",
- __func__);
-
- if (status & FLD_AUD_SRC_SYNC)
- pr_warn("%s(): Audio Received Sync Error Interrupt!\n",
- __func__);
-
- if (status & FLD_AUD_SRC_OPC_ERR)
- pr_warn("%s(): Audio Received OpCode Error Interrupt!\n",
- __func__);
-
- /* Read and write back the interrupt status register to clear
- * our bits */
- cx_write(channel->int_stat, cx_read(channel->int_stat));
- }
-
- if (dev->_audiofile_status == END_OF_FILE) {
- pr_warn("EOF Channel Audio Framecount = %d\n",
- dev->_audioframe_count);
- return -1;
- }
- /* ElSE, set the interrupt mask register, re-enable irq. */
- int_msk_tmp = cx_read(channel->int_msk);
- cx_write(channel->int_msk, int_msk_tmp |= _intr_msk);
-
- return 0;
-}
-
-static irqreturn_t cx25821_upstream_irq_audio(int irq, void *dev_id)
-{
- struct cx25821_dev *dev = dev_id;
- u32 audio_status;
- int handled = 0;
- const struct sram_channel *sram_ch;
-
- if (!dev)
- return -1;
-
- sram_ch = dev->channels[dev->_audio_upstream_channel].sram_channels;
-
- audio_status = cx_read(sram_ch->int_stat);
-
- /* Only deal with our interrupt */
- if (audio_status) {
- handled = cx25821_audio_upstream_irq(dev,
- dev->_audio_upstream_channel, audio_status);
- }
-
- if (handled < 0)
- cx25821_stop_upstream_audio(dev);
- else
- handled += handled;
-
- return IRQ_RETVAL(handled);
-}
-
-static void cx25821_wait_fifo_enable(struct cx25821_dev *dev,
- const struct sram_channel *sram_ch)
-{
- int count = 0;
- u32 tmp;
-
- do {
- /* Wait 10 microsecond before checking to see if the FIFO is
- * turned ON. */
- udelay(10);
-
- tmp = cx_read(sram_ch->dma_ctl);
-
- /* 10 millisecond timeout */
- if (count++ > 1000) {
- pr_err("ERROR: %s() fifo is NOT turned on. Timeout!\n",
- __func__);
- return;
- }
-
- } while (!(tmp & sram_ch->fld_aud_fifo_en));
-
-}
-
-static int cx25821_start_audio_dma_upstream(struct cx25821_dev *dev,
- const struct sram_channel *sram_ch)
-{
- u32 tmp = 0;
- int err = 0;
-
- /* Set the physical start address of the RISC program in the initial
- * program counter(IPC) member of the CMDS. */
- cx_write(sram_ch->cmds_start + 0, dev->_risc_phys_addr);
- /* Risc IPC High 64 bits 63-32 */
- cx_write(sram_ch->cmds_start + 4, 0);
-
- /* reset counter */
- cx_write(sram_ch->gpcnt_ctl, 3);
-
- /* Set the line length (It looks like we do not need to set the
- * line length) */
- cx_write(sram_ch->aud_length, AUDIO_LINE_SIZE & FLD_AUD_DST_LN_LNGTH);
-
- /* Set the input mode to 16-bit */
- tmp = cx_read(sram_ch->aud_cfg);
- tmp |= FLD_AUD_SRC_ENABLE | FLD_AUD_DST_PK_MODE | FLD_AUD_CLK_ENABLE |
- FLD_AUD_MASTER_MODE | FLD_AUD_CLK_SELECT_PLL_D |
- FLD_AUD_SONY_MODE;
- cx_write(sram_ch->aud_cfg, tmp);
-
- /* Read and write back the interrupt status register to clear it */
- tmp = cx_read(sram_ch->int_stat);
- cx_write(sram_ch->int_stat, tmp);
-
- /* Clear our bits from the interrupt status register. */
- cx_write(sram_ch->int_stat, _intr_msk);
-
- /* Set the interrupt mask register, enable irq. */
- cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | (1 << sram_ch->irq_bit));
- tmp = cx_read(sram_ch->int_msk);
- cx_write(sram_ch->int_msk, tmp |= _intr_msk);
-
- err = request_irq(dev->pci->irq, cx25821_upstream_irq_audio,
- IRQF_SHARED, dev->name, dev);
- if (err < 0) {
- pr_err("%s: can't get upstream IRQ %d\n", dev->name,
- dev->pci->irq);
- goto fail_irq;
- }
-
- /* Start the DMA engine */
- tmp = cx_read(sram_ch->dma_ctl);
- cx_set(sram_ch->dma_ctl, tmp | sram_ch->fld_aud_risc_en);
-
- dev->_audio_is_running = 1;
- dev->_is_first_audio_frame = 1;
-
- /* The fifo_en bit turns on by the first Risc program */
- cx25821_wait_fifo_enable(dev, sram_ch);
-
- return 0;
-
-fail_irq:
- cx25821_dev_unregister(dev);
- return err;
-}
-
-int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
-{
- const struct sram_channel *sram_ch;
- int err = 0;
-
- if (dev->_audio_is_running) {
- pr_warn("Audio Channel is still running so return!\n");
- return 0;
- }
-
- dev->_audio_upstream_channel = channel_select;
- sram_ch = dev->channels[channel_select].sram_channels;
-
- /* Work queue */
- INIT_WORK(&dev->_audio_work_entry, cx25821_audioups_handler);
-
- dev->_last_index_irq = 0;
- dev->_audio_is_running = 0;
- dev->_audioframe_count = 0;
- dev->_audiofile_status = RESET_STATUS;
- dev->_audio_lines_count = LINES_PER_AUDIO_BUFFER;
- _line_size = AUDIO_LINE_SIZE;
-
- if ((dev->input_audiofilename) &&
- (strcmp(dev->input_audiofilename, "") != 0))
- dev->_audiofilename = kstrdup(dev->input_audiofilename,
- GFP_KERNEL);
- else
- dev->_audiofilename = kstrdup(_defaultAudioName,
- GFP_KERNEL);
-
- if (!dev->_audiofilename) {
- err = -ENOMEM;
- goto error;
- }
-
- cx25821_sram_channel_setup_upstream_audio(dev, sram_ch,
- _line_size, 0);
-
- dev->audio_upstream_riscbuf_size =
- AUDIO_RISC_DMA_BUF_SIZE * NUM_AUDIO_PROGS +
- RISC_SYNC_INSTRUCTION_SIZE;
- dev->audio_upstream_databuf_size = AUDIO_DATA_BUF_SZ * NUM_AUDIO_PROGS;
-
- /* Allocating buffers and prepare RISC program */
- err = cx25821_audio_upstream_buffer_prepare(dev, sram_ch,
- _line_size);
- if (err < 0) {
- pr_err("%s: Failed to set up Audio upstream buffers!\n",
- dev->name);
- goto error;
- }
- /* Start RISC engine */
- cx25821_start_audio_dma_upstream(dev, sram_ch);
-
- return 0;
-
-error:
- cx25821_dev_unregister(dev);
-
- return err;
-}
+++ /dev/null
-/*
- * 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.
- */
-
-#include <linux/mutex.h>
-#include <linux/workqueue.h>
-
-#define NUM_AUDIO_PROGS 8
-#define NUM_AUDIO_FRAMES 8
-#define END_OF_FILE 0
-#define IN_PROGRESS 1
-#define RESET_STATUS -1
-#define FIFO_DISABLE 0
-#define FIFO_ENABLE 1
-#define NUM_NO_OPS 4
-
-#define RISC_READ_INSTRUCTION_SIZE 12
-#define RISC_JUMP_INSTRUCTION_SIZE 12
-#define RISC_WRITECR_INSTRUCTION_SIZE 16
-#define RISC_SYNC_INSTRUCTION_SIZE 4
-#define DWORD_SIZE 4
-#define AUDIO_SYNC_LINE 4
-
-#define LINES_PER_AUDIO_BUFFER 15
-#define AUDIO_LINE_SIZE 128
-#define AUDIO_DATA_BUF_SZ (AUDIO_LINE_SIZE * LINES_PER_AUDIO_BUFFER)
-
-#define USE_RISC_NOOP_AUDIO 1
-
-#ifdef USE_RISC_NOOP_AUDIO
-#define AUDIO_RISC_DMA_BUF_SIZE \
- (LINES_PER_AUDIO_BUFFER * RISC_READ_INSTRUCTION_SIZE + \
- RISC_WRITECR_INSTRUCTION_SIZE + NUM_NO_OPS * DWORD_SIZE + \
- RISC_JUMP_INSTRUCTION_SIZE)
-#endif
-
-#ifndef USE_RISC_NOOP_AUDIO
-#define AUDIO_RISC_DMA_BUF_SIZE \
- (LINES_PER_AUDIO_BUFFER * RISC_READ_INSTRUCTION_SIZE + \
- RISC_WRITECR_INSTRUCTION_SIZE + RISC_JUMP_INSTRUCTION_SIZE)
-#endif
-
-static int _line_size;
-char *_defaultAudioName = "/root/audioGOOD.wav";
+++ /dev/null
-/*
- * Driver for the Conexant CX25821 PCIe bridge
- *
- * Copyright (C) 2009 Conexant Systems Inc.
- * Authors <hiep.huynh@conexant.com>, <shu.lin@conexant.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- *
- * GNU General Public License for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include "cx25821-video.h"
-#include "cx25821-video-upstream.h"
-
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/slab.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,
- const struct sram_channel *ch,
- unsigned int bpl, u32 risc)
-{
- unsigned int i, lines;
- u32 cdt;
-
- if (ch->cmds_start == 0) {
- cx_write(ch->ptr1_reg, 0);
- cx_write(ch->ptr2_reg, 0);
- cx_write(ch->cnt2_reg, 0);
- cx_write(ch->cnt1_reg, 0);
- return 0;
- }
-
- bpl = (bpl + 7) & ~7; /* alignment */
- cdt = ch->cdt;
- lines = ch->fifo_size / bpl;
-
- if (lines > 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_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;
-
- *(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(out->_data_buf_phys_addr + offset);
- *(rp++) = cpu_to_le32(0); /* bits 63-32 */
-
- if ((lines <= NTSC_FIELD_HEIGHT)
- || (line < (NTSC_FIELD_HEIGHT - 1)) || !(out->is_60hz)) {
- offset += dist_betwn_starts;
- }
- }
-
- return 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 = chan->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)) || !(out->is_60hz))
- /* 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++) = cpu_to_le32(RISC_WRITECR);
- *(rp++) = cpu_to_le32(sram_ch->dma_ctl);
- *(rp++) = cpu_to_le32(FLD_VID_FIFO_EN);
- *(rp++) = cpu_to_le32(0x00000001);
- }
- }
-
- return rp;
-}
-
-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 */
- 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 (out->is_60hz) {
- 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 = 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(chan, rp,
- out->_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(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 = out->_dma_phys_start_addr +
- risc_program_size;
- } else {
- risc_phys_jump_addr = out->_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(struct cx25821_channel *chan)
-{
- 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 (!out->_is_running) {
- pr_info("No video file is currently running so return!\n");
- return;
- }
-
- /* Set the interrupt mask register, disable irq. */
- cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) & ~(1 << sram_ch->irq_bit));
-
- /* 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));
-
- free_irq(dev->pci->irq, chan);
-
- /* Clear data buffer memory */
- if (out->_data_buf_virt_addr)
- memset(out->_data_buf_virt_addr, 0, out->_data_buf_size);
-
- out->_is_running = 0;
- out->_is_first_frame = 0;
- out->_frame_count = 0;
- out->_file_status = END_OF_FILE;
-
- tmp = cx_read(VID_CH_MODE_SEL);
- cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
-}
-
-void cx25821_free_mem_upstream(struct cx25821_channel *chan)
-{
- struct cx25821_video_out_data *out = chan->out;
- struct cx25821_dev *dev = chan->dev;
-
- 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 (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;
- }
-}
-
-int cx25821_write_frame(struct cx25821_channel *chan,
- const char __user *data, size_t count)
-{
- struct cx25821_video_out_data *out = chan->out;
- int line_size = (out->_pixel_format == PIXEL_FRMT_411) ?
- Y411_LINE_SZ : Y422_LINE_SZ;
- int frame_size = 0;
- int frame_offset = 0;
- int curpos = out->curpos;
-
- if (out->is_60hz)
- 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;
-
- if (curpos == 0) {
- out->cur_frame_index = out->_frame_index;
- if (wait_event_interruptible(out->waitq, out->cur_frame_index != out->_frame_index))
- return -EINTR;
- out->cur_frame_index = out->_frame_index;
- }
-
- frame_offset = out->cur_frame_index ? frame_size : 0;
-
- if (frame_size - curpos < count)
- count = frame_size - curpos;
- if (copy_from_user((__force char *)out->_data_buf_virt_addr + frame_offset + curpos,
- data, count))
- return -EFAULT;
- curpos += count;
- if (curpos == frame_size) {
- out->_frame_count++;
- curpos = 0;
- }
- out->curpos = curpos;
-
- return count;
-}
-
-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 (out->_dma_virt_addr != NULL)
- pci_free_consistent(dev->pci, out->upstream_riscbuf_size,
- out->_dma_virt_addr, out->_dma_phys_addr);
-
- 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 (!out->_dma_virt_addr) {
- pr_err("FAILED to allocate memory for Risc buffer! Returning\n");
- return -ENOMEM;
- }
-
- /* Clear memory at address */
- memset(out->_dma_virt_addr, 0, out->_risc_size);
-
- 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 */
- 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 (!out->_data_buf_virt_addr) {
- pr_err("FAILED to allocate memory for data buffer! Returning\n");
- return -ENOMEM;
- }
-
- /* Clear memory at address */
- memset(out->_data_buf_virt_addr, 0, out->_data_buf_size);
-
- /* Create RISC programs */
- 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;
- }
-
- return 0;
-
-error:
- return ret;
-}
-
-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 = chan->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);
-
- wake_up(&out->waitq);
-
- spin_lock(&dev->slock);
-
- out->_frame_index = prog_cnt;
-
- if (out->_is_first_frame) {
- out->_is_first_frame = 0;
-
- if (out->is_60hz) {
- 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 (out->_dma_virt_start_addr != NULL) {
- line_size_in_bytes =
- (out->_pixel_format ==
- PIXEL_FRMT_411) ? Y411_LINE_SZ :
- Y422_LINE_SZ;
- risc_phys_jump_addr =
- out->_dma_phys_start_addr +
- odd_risc_prog_size;
-
- rp = cx25821_update_riscprogram(chan,
- out->_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 (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. */
- 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_channel *chan = dev_id;
- struct cx25821_dev *dev = chan->dev;
- u32 vid_status;
- int handled = 0;
- const struct sram_channel *sram_ch;
-
- if (!dev)
- return -1;
-
- 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(chan, vid_status);
-
- return IRQ_RETVAL(handled);
-}
-
-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 = 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 |= out->is_60hz ? 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 (out->is_60hz)
- 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(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;
-
- /* 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, out->_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, chan);
- 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);
-
- out->_is_running = 1;
- out->_is_first_frame = 1;
-
- return 0;
-
-fail_irq:
- cx25821_dev_unregister(dev);
- return err;
-}
-
-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;
- int data_frame_size = 0;
- int risc_buffer_size = 0;
-
- if (out->_is_running) {
- pr_info("Video Channel is still running so return!\n");
- return 0;
- }
-
- sram_ch = chan->sram_channels;
-
- out->is_60hz = dev->tvnorm & V4L2_STD_525_60;
-
- /* 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);
-
- 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 = 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;
-
- 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;
- out->curpos = 0;
- init_waitqueue_head(&out->waitq);
-
- err = cx25821_sram_channel_setup_upstream(dev, sram_ch,
- out->_line_size, 0);
-
- /* setup fifo + format */
- cx25821_set_pixelengine(chan, sram_ch, out->_pixel_format);
-
- 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(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(chan, sram_ch);
-
- return 0;
-
-error:
- cx25821_dev_unregister(dev);
-
- return err;
-}
+++ /dev/null
-/*
- * 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.
- */
-
-#include <linux/mutex.h>
-#include <linux/workqueue.h>
-
-#define OUTPUT_FRMT_656 0
-#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 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)
-
-#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)
-
-#endif
-
-#ifndef USE_RISC_NOOP_VIDEO
-#define PAL_US_VID_PROG_SIZE \
- (PAL_FIELD_HEIGHT * 3 * DWORD_SIZE + \
- RISC_WRITECR_INSTRUCTION_SIZE + RISC_SYNC_INSTRUCTION_SIZE + \
- JUMP_INSTRUCTION_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)
-
-#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
const struct sram_channel *ch,
unsigned int bpl, u32 risc);
-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 int cx25821_write_frame(struct cx25821_channel *chan,
- const char __user *data, size_t count);
-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(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,
- unsigned int bpl, u32 risc);
extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel,
u32 format);
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