#include <linux/fcntl.h>
#include <linux/delay.h>
#include <linux/slab.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
MODULE_DESCRIPTION("v4l2 driver module for cx25821 based TV cards");
MODULE_AUTHOR("Hiep Huynh <hiep.huynh@conexant.com>");
cdt = ch->cdt;
lines = ch->fifo_size / bpl;
- if (lines > 3) {
+ if (lines > 3)
lines = 3;
- }
BUG_ON(lines < 2);
cx_write(ch->cmds_start + 12, AUDIO_CDT_SIZE_QW);
cx_write(ch->cmds_start + 16, ch->ctrl_start);
- //IQ size
+ /* IQ size */
cx_write(ch->cmds_start + 20, AUDIO_IQ_SIZE_DW);
for (i = 24; i < 80; i += 4)
}
static __le32 *cx25821_risc_field_upstream_audio(struct cx25821_dev *dev,
- __le32 * rp,
+ __le32 *rp,
dma_addr_t databuf_phys_addr,
unsigned int bpl,
int fifo_enable)
*(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.
+ /* 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;
risc_flag = RISC_CNT_INC;
}
- //Calculate physical jump address
+ /* Calculate physical jump address */
if ((frame + 1) == NUM_AUDIO_FRAMES) {
risc_phys_jump_addr =
dev->_risc_phys_start_addr +
fifo_enable);
if (USE_RISC_NOOP_AUDIO) {
- for (i = 0; i < NUM_NO_OPS; i++) {
+ 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
+ /* 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
+ /* 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);
}
u32 tmp = 0;
if (!dev->_audio_is_running) {
- printk
- ("cx25821: No audio file is currently running so return!\n");
+ printk(KERN_DEBUG
+ "cx25821: No audio file is currently running so return!\n");
return;
}
- //Disable RISC interrupts
+ /* Disable RISC interrupts */
cx_write(sram_ch->int_msk, 0);
- //Turn OFF risc and fifo enable in AUD_DMA_CNTRL
+ /* 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
+ /* Clear data buffer memory */
if (dev->_audiodata_buf_virt_addr)
memset(dev->_audiodata_buf_virt_addr, 0,
dev->_audiodata_buf_size);
void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev)
{
- if (dev->_audio_is_running) {
+ if (dev->_audio_is_running)
cx25821_stop_upstream_audio(dev);
- }
cx25821_free_memory_audio(dev);
}
if (IS_ERR(myfile)) {
const int open_errno = -PTR_ERR(myfile);
- printk("%s(): ERROR opening file(%s) with errno = %d! \n",
+ printk(KERN_ERR "%s(): ERROR opening file(%s) with errno = %d!\n",
__func__, dev->_audiofilename, open_errno);
return PTR_ERR(myfile);
} else {
}
if (!myfile->f_op->read) {
- printk("%s: File has no READ operations registered! \n",
+ printk("%s: File has no READ operations registered!\n",
__func__);
filp_close(myfile, NULL);
return -EIO;
container_of(work, struct cx25821_dev, _audio_work_entry);
if (!dev) {
- printk("ERROR %s(): since container_of(work_struct) FAILED! \n",
+ printk(KERN_ERR "ERROR %s(): since container_of(work_struct) FAILED!\n",
__func__);
return;
}
if (IS_ERR(myfile)) {
const int open_errno = -PTR_ERR(myfile);
- printk("%s(): ERROR opening file(%s) with errno = %d! \n",
+ printk(KERN_ERR "%s(): ERROR opening file(%s) with errno = %d!\n",
__func__, dev->_audiofilename, open_errno);
return PTR_ERR(myfile);
} else {
if (!(myfile->f_op)) {
- printk("%s: File has no file operations registered! \n",
+ printk("%s: File has no file operations registered!\n",
__func__);
filp_close(myfile, NULL);
return -EIO;
}
if (!myfile->f_op->read) {
- printk("%s: File has no READ operations registered! \n",
+ printk("%s: File has no READ operations registered!\n",
__func__);
filp_close(myfile, NULL);
return -EIO;
}
}
- if (i > 0) {
+ if (i > 0)
dev->_audioframe_count++;
- }
- if (vfs_read_retval < line_size) {
+ if (vfs_read_retval < line_size)
break;
- }
}
dev->_audiofile_status =
dev->_audiorisc_size = dev->audio_upstream_riscbuf_size;
if (!dev->_risc_virt_addr) {
- printk
- ("cx25821 ERROR: pci_alloc_consistent() FAILED to allocate memory for RISC program! Returning.\n");
+ printk(KERN_DEBUG
+ "cx25821 ERROR: pci_alloc_consistent() FAILED to allocate memory for RISC program! Returning.\n");
return -ENOMEM;
}
- //Clear out memory at address
+ /* Clear out memory at address */
memset(dev->_risc_virt_addr, 0, dev->_audiorisc_size);
- //For Audio Data buffer allocation
+ /* 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_size = dev->audio_upstream_databuf_size;
if (!dev->_audiodata_buf_virt_addr) {
- printk
- ("cx25821 ERROR: pci_alloc_consistent() FAILED to allocate memory for data buffer! Returning. \n");
+ printk(KERN_DEBUG
+ "cx25821 ERROR: pci_alloc_consistent() FAILED to allocate memory for data buffer! Returning.\n");
return -ENOMEM;
}
- //Clear out memory at address
+ /* 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
+ /* Creating RISC programs */
ret =
cx25821_risc_buffer_upstream_audio(dev, dev->pci, bpl,
dev->_audio_lines_count);
if (ret < 0) {
printk(KERN_DEBUG
- "cx25821 ERROR creating audio upstream RISC programs! \n");
+ "cx25821 ERROR creating audio upstream RISC programs!\n");
goto error;
}
return 0;
- error:
+error:
return ret;
}
__le32 *rp;
if (status & FLD_AUD_SRC_RISCI1) {
- //Get interrupt_index of the program that interrupted
+ /* 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
+ /* 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)) {
+ /* Update _last_index_irq */
+ if (dev->_last_index_irq < (NUMBER_OF_PROGRAMS - 1))
dev->_last_index_irq++;
- } else {
+ else
dev->_last_index_irq = 0;
- }
dev->_audioframe_index = dev->_last_index_irq;
cpu_to_le32(RISC_NOOP);
}
}
- // Jump to 2nd Audio Frame
+ /* Jump to 2nd Audio Frame */
*(rp++) =
cpu_to_le32(RISC_JUMP | RISC_IRQ1 |
RISC_CNT_RESET);
printk("%s: Audio Received OpCode Error Interrupt!\n",
__func__);
- // Read and write back the interrupt status register to clear our bits
+ /* Read and write back the interrupt status register to clear
+ * our bits */
cx_write(channel->int_stat, cx_read(channel->int_stat));
}
dev->_audioframe_count);
return -1;
}
- //ElSE, set the interrupt mask register, re-enable irq.
+ /* 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);
msk_stat = cx_read(sram_ch->int_mstat);
audio_status = cx_read(sram_ch->int_stat);
- // Only deal with our interrupt
+ /* Only deal with our interrupt */
if (audio_status) {
handled =
cx25821_audio_upstream_irq(dev,
audio_status);
}
- if (handled < 0) {
+ if (handled < 0)
cx25821_stop_upstream_audio(dev);
- } else {
+ else
handled += handled;
- }
return IRQ_RETVAL(handled);
}
u32 tmp;
do {
- //Wait 10 microsecond before checking to see if the FIFO is turned ON.
+ /* Wait 10 microsecond before checking to see if the FIFO is
+ * turned ON. */
udelay(10);
tmp = cx_read(sram_ch->dma_ctl);
- if (count++ > 1000) //10 millisecond timeout
- {
+ /* 10 millisecond timeout */
+ if (count++ > 1000) {
printk
("cx25821 ERROR: %s() fifo is NOT turned on. Timeout!\n",
__func__);
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.
+ /* 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);
- cx_write(sram_ch->cmds_start + 4, 0); /* Risc IPC High 64 bits 63-32 */
+ /* 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)
+ /* 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
+ /* 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
+ /* 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.
+ /* Clear our bits from the interrupt status register. */
cx_write(sram_ch->int_stat, _intr_msk);
- //Set the interrupt mask register, enable irq.
+ /* 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);
goto fail_irq;
}
- // Start the DMA engine
+ /* 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
+ /* The fifo_en bit turns on by the first Risc program */
cx25821_wait_fifo_enable(dev, sram_ch);
return 0;
- fail_irq:
+fail_irq:
cx25821_dev_unregister(dev);
return err;
}
dev->_audio_upstream_channel_select = channel_select;
sram_ch = &dev->sram_channels[channel_select];
- //Work queue
+ /* Work queue */
INIT_WORK(&dev->_audio_work_entry, cx25821_audioups_handler);
dev->_irq_audio_queues =
create_singlethread_workqueue("cx25821_audioworkqueue");
if (!dev->_irq_audio_queues) {
- printk
- ("cx25821 ERROR: create_singlethread_workqueue() for Audio FAILED!\n");
+ printk(KERN_DEBUG
+ "cx25821 ERROR: create_singlethread_workqueue() for Audio FAILED!\n");
return -ENOMEM;
}
memcpy(dev->_audiofilename, dev->input_audiofilename,
str_length + 1);
- //Default if filename is empty string
+ /* Default if filename is empty string */
if (strcmp(dev->input_audiofilename, "") == 0) {
dev->_audiofilename = "/root/audioGOOD.wav";
}
RISC_SYNC_INSTRUCTION_SIZE;
dev->audio_upstream_databuf_size = AUDIO_DATA_BUF_SZ * NUM_AUDIO_PROGS;
- //Allocating buffers and prepare RISC program
+ /* Allocating buffers and prepare RISC program */
retval =
cx25821_audio_upstream_buffer_prepare(dev, sram_ch, _line_size);
if (retval < 0) {
dev->name);
goto error;
}
- //Start RISC engine
+ /* Start RISC engine */
cx25821_start_audio_dma_upstream(dev, sram_ch);
return 0;
- error:
+error:
cx25821_dev_unregister(dev);
return err;
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff