[media] saa7164: mundane buffer debugging changes to track issues

Code is removed in future patches in this set.

Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

4 files changed, 29 insertions, 16 deletions

diff --git a/drivers/media/video/saa7164/saa7164-buffer.c b/drivers/media/video/saa7164/saa7164-buffer.c
index 5f45ea7f3d7c..c7bd81e248f6 100644
--- a/drivers/media/video/saa7164/saa7164-buffer.c
+++ b/drivers/media/video/saa7164/saa7164-buffer.c
@@ -241,6 +241,7 @@ int saa7164_buffer_cfg_port(struct saa7164_port *port)
 
         dprintk(DBGLVL_BUF, "%s(port=%d)\n", __func__, port->nr);
 
+        port->counter = 0;
         saa7164_writel(port->bufcounter, 0);
         saa7164_writel(port->pitch, params->pitch);
         saa7164_writel(port->bufsize, params->pitch * params->numberoflines);
diff --git a/drivers/media/video/saa7164/saa7164-core.c b/drivers/media/video/saa7164/saa7164-core.c
index ad619b325e96..09f7a64f538b 100644
--- a/drivers/media/video/saa7164/saa7164-core.c
+++ b/drivers/media/video/saa7164/saa7164-core.c
@@ -316,9 +316,9 @@ static void saa7164_work_enchandler(struct work_struct *w)
                 if (buf->idx == rp) {
 
                         crc = crc32(0, buf->cpu, buf->actual_size);
-                        if (crc != port->shadow_crc[rp])
-                                printk(KERN_ERR "%s crc didn't match shadow was 0x%x now 0x%x\n",
-                                        __func__, port->shadow_crc[rp], crc);
+//                      if (crc != port->shadow_crc[rp])
+//                              printk(KERN_ERR "%s crc didn't match shadow was 0x%x now 0x%x\n",
+//                                      __func__, port->shadow_crc[rp], crc);
 
                         /* Found the buffer, deal with it */
                         dprintk(DBGLVL_IRQ, "%s() wp: %d processing: %d crc32: 0x%x\n",
@@ -350,12 +350,6 @@ static void saa7164_work_enchandler(struct work_struct *w)
                                         else
                                                 ok = 0;
 
-                                        if (ok == 0)
-                                                printk(KERN_ERR
-                                                        "rp: %d dmacrc: 0x%08x shadcrc: 0x%08x ubufcrc: 0x%08x %s\n",
-                                                        rp, buf->crc, port->shadow_crc[rp], ubuf->crc,
-                                                        ok ? "crcgood" : "crcbad");
-
                                         /* Requeue the buffer on the free list */
                                         ubuf->pos = 0;
 
@@ -430,6 +424,7 @@ static irqreturn_t saa7164_irq_encoder(struct saa7164_port *port)
         struct list_head *c, *n;
         int wp, rp, i = 0;
         u8 *p;
+        u32 *up, j;
 
         /* Find the current write point from the hardware */
         wp = saa7164_readl(port->bufcounter);
@@ -438,6 +433,8 @@ static irqreturn_t saa7164_irq_encoder(struct saa7164_port *port)
                 return 0;
         }
 
+        printk(KERN_ERR "port %p wp = %d\n", port, wp);
+
         /* Find the previous buffer to the current write point */
         if (wp == 0)
                 rp = 7;
@@ -449,6 +446,11 @@ static irqreturn_t saa7164_irq_encoder(struct saa7164_port *port)
                 return 0;
         }
 
+        if (rp == port->last_irq_rp) {
+                printk(KERN_ERR "%s() Duplicate rp = %d port %p\n",
+                        __func__, rp, port);
+        }
+
         if (rp != ((port->last_irq_rp + 1) % 8)) {
                 printk(KERN_ERR "%s() Multiple bufs on interrupt, port %p\n",
                         __func__, port);
@@ -503,16 +505,17 @@ static irqreturn_t saa7164_irq_encoder(struct saa7164_port *port)
                 }
 
                 if (buf->idx == rp) {
-
-                        memcpy_fromio(port->shadow_buf[rp], buf->cpu, buf->actual_size);
-
+                        up = (u32 *)port->shadow_buf[rp];
+                        for (j = 0 ; j < (buf->actual_size / sizeof(u32)); j++) {
+                                *(up + j) = (rp << 28) | port->counter++;
+                        }
                         port->shadow_crc[rp] = crc32(0, port->shadow_buf[rp], buf->actual_size);
 
                         buf->crc = crc32(0, buf->cpu, buf->actual_size);
 
-                        if (port->shadow_crc[rp] != buf->crc)
-                                printk(KERN_ERR "%s() crc check failed 0x%x vs 0x%x\n",
-                                        __func__, port->shadow_crc[rp], buf->crc);
+//                      if (port->shadow_crc[rp] != buf->crc)
+//                              printk(KERN_ERR "%s() crc check failed 0x%x vs 0x%x\n",
+//                                      __func__, port->shadow_crc[rp], buf->crc);
                         break;
                 }
 
diff --git a/drivers/media/video/saa7164/saa7164-encoder.c b/drivers/media/video/saa7164/saa7164-encoder.c
index 08b62e41c466..b904c61f8f81 100644
--- a/drivers/media/video/saa7164/saa7164-encoder.c
+++ b/drivers/media/video/saa7164/saa7164-encoder.c
@@ -1008,6 +1008,7 @@ struct saa7164_user_buffer *saa7164_enc_next_buf(struct saa7164_port *port)
         struct saa7164_user_buffer *buf = 0;
         struct saa7164_dev *dev = port->dev;
         u32 crc;
+        u32 *d;
 
         mutex_lock(&port->dmaqueue_lock);
         if (!list_empty(&port->list_buf_used.list)) {
@@ -1020,6 +1021,13 @@ struct saa7164_user_buffer *saa7164_enc_next_buf(struct saa7164_port *port)
                                 buf, buf->crc, crc);
                 }
 
+                d = (u32 *)buf->data;
+
+                if ((*d & 0xffffff) > (port->read_counter + 0x2000))
+                        printk(KERN_ERR "%s() *d 0x%x port %p\n", __func__, *d, port);
+
+                port->read_counter = *d;
+
         }
         mutex_unlock(&port->dmaqueue_lock);
 
diff --git a/drivers/media/video/saa7164/saa7164.h b/drivers/media/video/saa7164/saa7164.h
index 80571e0e3d4b..58141dfed246 100644
--- a/drivers/media/video/saa7164/saa7164.h
+++ b/drivers/media/video/saa7164/saa7164.h
@@ -395,7 +395,8 @@ struct saa7164_port {
         u8 *shadow_buf[8];
         u32 shadow_crc[8];
 
-        u32 dvd_pack_offset;
+        u32 counter;
+        u32 read_counter;
 };
 
 struct saa7164_dev {