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path: root/drivers/media/video/cx88/cx88-mpeg.c
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Diffstat (limited to 'drivers/media/video/cx88/cx88-mpeg.c')
-rw-r--r--drivers/media/video/cx88/cx88-mpeg.c52
1 files changed, 42 insertions, 10 deletions
diff --git a/drivers/media/video/cx88/cx88-mpeg.c b/drivers/media/video/cx88/cx88-mpeg.c
index 07aae1899e1..9ade2ae91e9 100644
--- a/drivers/media/video/cx88/cx88-mpeg.c
+++ b/drivers/media/video/cx88/cx88-mpeg.c
@@ -1,5 +1,5 @@
/*
- * $Id: cx88-mpeg.c,v 1.25 2005/03/07 14:18:00 kraxel Exp $
+ * $Id: cx88-mpeg.c,v 1.26 2005/06/03 13:31:51 mchehab Exp $
*
* Support for the mpeg transport stream transfers
* PCI function #2 of the cx2388x.
@@ -55,7 +55,7 @@ static int cx8802_start_dma(struct cx8802_dev *dev,
{
struct cx88_core *core = dev->core;
- dprintk(1, "cx8802_start_mpegport_dma %d\n", buf->vb.width);
+ dprintk(0, "cx8802_start_dma %d\n", buf->vb.width);
/* setup fifo + format */
cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH28],
@@ -100,18 +100,21 @@ static int cx8802_start_dma(struct cx8802_dev *dev,
q->count = 1;
/* enable irqs */
+ dprintk( 0, "setting the interrupt mask\n" );
cx_set(MO_PCI_INTMSK, core->pci_irqmask | 0x04);
- cx_write(MO_TS_INTMSK, 0x1f0011);
+ cx_set(MO_TS_INTMSK, 0x1f0011);
+ //cx_write(MO_TS_INTMSK, 0x0f0011);
/* start dma */
- cx_write(MO_DEV_CNTRL2, (1<<5)); /* FIXME: s/write/set/ ??? */
- cx_write(MO_TS_DMACNTRL, 0x11);
+ cx_set(MO_DEV_CNTRL2, (1<<5));
+ cx_set(MO_TS_DMACNTRL, 0x11);
return 0;
}
static int cx8802_stop_dma(struct cx8802_dev *dev)
{
struct cx88_core *core = dev->core;
+ dprintk( 0, "cx8802_stop_dma\n" );
/* stop dma */
cx_clear(MO_TS_DMACNTRL, 0x11);
@@ -131,8 +134,12 @@ static int cx8802_restart_queue(struct cx8802_dev *dev,
struct cx88_buffer *buf;
struct list_head *item;
+ dprintk( 0, "cx8802_restart_queue\n" );
if (list_empty(&q->active))
+ {
+ dprintk( 0, "cx8802_restart_queue: queue is empty\n" );
return 0;
+ }
buf = list_entry(q->active.next, struct cx88_buffer, vb.queue);
dprintk(2,"restart_queue [%p/%d]: restart dma\n",
@@ -182,27 +189,32 @@ void cx8802_buf_queue(struct cx8802_dev *dev, struct cx88_buffer *buf)
struct cx88_buffer *prev;
struct cx88_dmaqueue *q = &dev->mpegq;
+ dprintk( 1, "cx8802_buf_queue\n" );
/* add jump to stopper */
buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
if (list_empty(&q->active)) {
+ dprintk( 0, "queue is empty - first active\n" );
list_add_tail(&buf->vb.queue,&q->active);
cx8802_start_dma(dev, q, buf);
buf->vb.state = STATE_ACTIVE;
buf->count = q->count++;
mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
- dprintk(2,"[%p/%d] %s - first active\n",
+ dprintk(0,"[%p/%d] %s - first active\n",
buf, buf->vb.i, __FUNCTION__);
+ //udelay(100);
} else {
+ dprintk( 1, "queue is not empty - append to active\n" );
prev = list_entry(q->active.prev, struct cx88_buffer, vb.queue);
list_add_tail(&buf->vb.queue,&q->active);
buf->vb.state = STATE_ACTIVE;
buf->count = q->count++;
prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
- dprintk(2,"[%p/%d] %s - append to active\n",
+ dprintk( 1, "[%p/%d] %s - append to active\n",
buf, buf->vb.i, __FUNCTION__);
+ //udelay(100);
}
}
@@ -224,7 +236,10 @@ static void do_cancel_buffers(struct cx8802_dev *dev, char *reason, int restart)
buf, buf->vb.i, reason, (unsigned long)buf->risc.dma);
}
if (restart)
+ {
+ dprintk(0, "restarting queue\n" );
cx8802_restart_queue(dev,q);
+ }
spin_unlock_irqrestore(&dev->slock,flags);
}
@@ -232,6 +247,7 @@ void cx8802_cancel_buffers(struct cx8802_dev *dev)
{
struct cx88_dmaqueue *q = &dev->mpegq;
+ dprintk( 1, "cx8802_cancel_buffers" );
del_timer_sync(&q->timeout);
cx8802_stop_dma(dev);
do_cancel_buffers(dev,"cancel",0);
@@ -241,7 +257,7 @@ static void cx8802_timeout(unsigned long data)
{
struct cx8802_dev *dev = (struct cx8802_dev*)data;
- dprintk(1, "%s\n",__FUNCTION__);
+ dprintk(0, "%s\n",__FUNCTION__);
if (debug)
cx88_sram_channel_dump(dev->core, &cx88_sram_channels[SRAM_CH28]);
@@ -254,12 +270,17 @@ static void cx8802_mpeg_irq(struct cx8802_dev *dev)
struct cx88_core *core = dev->core;
u32 status, mask, count;
+ dprintk( 1, "cx8802_mpeg_irq\n" );
status = cx_read(MO_TS_INTSTAT);
mask = cx_read(MO_TS_INTMSK);
if (0 == (status & mask))
return;
cx_write(MO_TS_INTSTAT, status);
+#if 0
+ cx88_print_irqbits(core->name, "irq mpeg ",
+ cx88_mpeg_irqs, status, mask);
+#endif
if (debug || (status & mask & ~0xff))
cx88_print_irqbits(core->name, "irq mpeg ",
cx88_mpeg_irqs, status, mask);
@@ -273,6 +294,7 @@ static void cx8802_mpeg_irq(struct cx8802_dev *dev)
/* risc1 y */
if (status & 0x01) {
+ dprintk( 1, "wake up\n" );
spin_lock(&dev->slock);
count = cx_read(MO_TS_GPCNT);
cx88_wakeup(dev->core, &dev->mpegq, count);
@@ -288,6 +310,7 @@ static void cx8802_mpeg_irq(struct cx8802_dev *dev)
/* other general errors */
if (status & 0x1f0100) {
+ dprintk( 0, "general errors: 0x%08x\n", status & 0x1f0100 );
spin_lock(&dev->slock);
cx8802_stop_dma(dev);
cx8802_restart_queue(dev,&dev->mpegq);
@@ -295,6 +318,8 @@ static void cx8802_mpeg_irq(struct cx8802_dev *dev)
}
}
+#define MAX_IRQ_LOOP 10
+
static irqreturn_t cx8802_irq(int irq, void *dev_id, struct pt_regs *regs)
{
struct cx8802_dev *dev = dev_id;
@@ -302,10 +327,13 @@ static irqreturn_t cx8802_irq(int irq, void *dev_id, struct pt_regs *regs)
u32 status;
int loop, handled = 0;
- for (loop = 0; loop < 10; loop++) {
+ for (loop = 0; loop < MAX_IRQ_LOOP; loop++) {
status = cx_read(MO_PCI_INTSTAT) & (core->pci_irqmask | 0x04);
if (0 == status)
goto out;
+ dprintk( 1, "cx8802_irq\n" );
+ dprintk( 1, " loop: %d/%d\n", loop, MAX_IRQ_LOOP );
+ dprintk( 1, " status: %d\n", status );
handled = 1;
cx_write(MO_PCI_INTSTAT, status);
@@ -314,7 +342,8 @@ static irqreturn_t cx8802_irq(int irq, void *dev_id, struct pt_regs *regs)
if (status & 0x04)
cx8802_mpeg_irq(dev);
};
- if (10 == loop) {
+ if (MAX_IRQ_LOOP == loop) {
+ dprintk( 0, "clearing mask\n" );
printk(KERN_WARNING "%s/0: irq loop -- clearing mask\n",
core->name);
cx_write(MO_PCI_INTMSK,0);
@@ -378,6 +407,7 @@ int cx8802_init_common(struct cx8802_dev *dev)
void cx8802_fini_common(struct cx8802_dev *dev)
{
+ dprintk( 2, "cx8802_fini_common\n" );
cx8802_stop_dma(dev);
pci_disable_device(dev->pci);
@@ -399,6 +429,7 @@ int cx8802_suspend_common(struct pci_dev *pci_dev, pm_message_t state)
/* stop mpeg dma */
spin_lock(&dev->slock);
if (!list_empty(&dev->mpegq.active)) {
+ dprintk( 2, "suspend\n" );
printk("%s: suspend mpeg\n", core->name);
cx8802_stop_dma(dev);
del_timer(&dev->mpegq.timeout);
@@ -463,4 +494,5 @@ EXPORT_SYMBOL(cx8802_resume_common);
* Local variables:
* c-basic-offset: 8
* End:
+ * kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off
*/
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-14 03:12:44 +0000