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Subject[DVB patch 03/48] dibusb: misc. fixes
o worked around hw_sleep handling for usb1.1 devices
o fixed oops when no frontend was attached (because of usb1.1 timeouts in my
debugging sessions)
(Patrick Boettcher)

Signed-off-by: Johannes Stezenbach <js@linuxtv.org>

dvb-dibusb-fe-i2c.c | 4 ++
dvb-dibusb-usb.c | 70 ++++++++++++++++++++++++++--------------------------
2 files changed, 39 insertions(+), 35 deletions(-)

Index: linux-2.6.12-rc1-mm1/drivers/media/dvb/dibusb/dvb-dibusb-fe-i2c.c
===================================================================
--- linux-2.6.12-rc1-mm1.orig/drivers/media/dvb/dibusb/dvb-dibusb-fe-i2c.c 2005-03-21 23:27:59.000000000 +0100
+++ linux-2.6.12-rc1-mm1/drivers/media/dvb/dibusb/dvb-dibusb-fe-i2c.c 2005-03-22 00:14:35.000000000 +0100
@@ -178,6 +178,8 @@ int dibusb_fe_init(struct usb_dibusb* di
break;
}
}
+ /* if a frontend was found */
+ if (dib->fe != NULL) {
if (dib->fe->ops->sleep != NULL)
dib->fe_sleep = dib->fe->ops->sleep;
dib->fe->ops->sleep = dibusb_hw_sleep;
@@ -192,6 +194,7 @@ int dibusb_fe_init(struct usb_dibusb* di
/* check which tuner is mounted on this device, in case this is unsure */
dibusb_tuner_quirk(dib);
}
+ }
if (dib->fe == NULL) {
err("A frontend driver was not found for device '%s'.",
dib->dibdev->name);
@@ -205,6 +208,7 @@ int dibusb_fe_init(struct usb_dibusb* di
return -ENODEV;
}
}
+
return 0;
}

Index: linux-2.6.12-rc1-mm1/drivers/media/dvb/dibusb/dvb-dibusb-usb.c
===================================================================
--- linux-2.6.12-rc1-mm1.orig/drivers/media/dvb/dibusb/dvb-dibusb-usb.c 2005-03-21 23:27:59.000000000 +0100
+++ linux-2.6.12-rc1-mm1/drivers/media/dvb/dibusb/dvb-dibusb-usb.c 2005-03-22 00:14:35.000000000 +0100
@@ -1,12 +1,12 @@
/*
- * dvb-dibusb-usb.c is part of the driver for mobile USB Budget DVB-T devices
+ * dvb-dibusb-usb.c is part of the driver for mobile USB Budget DVB-T devices
* based on reference design made by DiBcom (http://www.dibcom.fr/)
*
* Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
*
* see dvb-dibusb-core.c for more copyright details.
*
- * This file contains functions for initializing and handling the
+ * This file contains functions for initializing and handling the
* usb specific stuff.
*/
#include "dvb-dibusb.h"
@@ -25,18 +25,18 @@ int dibusb_readwrite_usb(struct usb_dibu
if ((ret = down_interruptible(&dib->usb_sem)))
return ret;

- if (dib->feedcount &&
- wbuf[0] == DIBUSB_REQ_I2C_WRITE &&
+ if (dib->feedcount &&
+ wbuf[0] == DIBUSB_REQ_I2C_WRITE &&
dib->dibdev->dev_cl->id == DIBUSB1_1)
deb_err("BUG: writing to i2c, while TS-streaming destroys the stream."
"(%x reg: %x %x)\n", wbuf[0],wbuf[2],wbuf[3]);
-
+
debug_dump(wbuf,wlen);

ret = usb_bulk_msg(dib->udev,usb_sndbulkpipe(dib->udev,
dib->dibdev->dev_cl->pipe_cmd), wbuf,wlen,&actlen,
DIBUSB_I2C_TIMEOUT);
-
+
if (ret)
err("bulk message failed: %d (%d/%d)",ret,wlen,actlen);
else
@@ -55,7 +55,7 @@ int dibusb_readwrite_usb(struct usb_dibu
debug_dump(rbuf,actlen);
}
}
-
+
up(&dib->usb_sem);
return ret;
}
@@ -63,15 +63,18 @@ int dibusb_readwrite_usb(struct usb_dibu
/*
* Cypress controls
*/
+static int dibusb_write_usb(struct usb_dibusb *dib, u8 *buf, u16 len)
+{
+ return dibusb_readwrite_usb(dib,buf,len,NULL,0);
+}

#if 0
-/*
- * #if 0'ing the following functions as they are not in use _now_,
+/*
+ * #if 0'ing the following functions as they are not in use _now_,
* but probably will be sometime.
*/
-
/*
- * do not use this, just a workaround for a bug,
+ * do not use this, just a workaround for a bug,
* which will hopefully never occur :).
*/
int dibusb_interrupt_read_loop(struct usb_dibusb *dib)
@@ -79,15 +82,10 @@ int dibusb_interrupt_read_loop(struct us
u8 b[1] = { DIBUSB_REQ_INTR_READ };
return dibusb_write_usb(dib,b,1);
}
-
-#endif
-static int dibusb_write_usb(struct usb_dibusb *dib, u8 *buf, u16 len)
-{
- return dibusb_readwrite_usb(dib,buf,len,NULL,0);
-}
+#endif

/*
- * ioctl for the firmware
+ * ioctl for the firmware
*/
static int dibusb_ioctl_cmd(struct usb_dibusb *dib, u8 cmd, u8 *param, int plen)
{
@@ -112,10 +110,10 @@ int dibusb_hw_wakeup(struct dvb_frontend
u8 b[1] = { DIBUSB_IOCTL_POWER_WAKEUP };
deb_info("dibusb-device is getting up.\n");
dibusb_ioctl_cmd(dib,DIBUSB_IOCTL_CMD_POWER_MODE, b,1);
-
+
if (dib->fe_init)
return dib->fe_init(fe);
-
+
return 0;
}

@@ -124,11 +122,13 @@ int dibusb_hw_sleep(struct dvb_frontend
struct usb_dibusb *dib = (struct usb_dibusb *) fe->dvb->priv;
u8 b[1] = { DIBUSB_IOCTL_POWER_SLEEP };
deb_info("dibusb-device is going to bed.\n");
- dibusb_ioctl_cmd(dib,DIBUSB_IOCTL_CMD_POWER_MODE, b,1);
+ /* workaround, something is wrong, when dibusb 1.1 device are going to bed too late */
+ if (dib->dibdev->dev_cl->id != DIBUSB1_1)
+ dibusb_ioctl_cmd(dib,DIBUSB_IOCTL_CMD_POWER_MODE, b,1);

if (dib->fe_sleep)
return dib->fe_sleep(fe);
-
+
return 0;
}

@@ -147,7 +147,7 @@ int dibusb_streaming(struct usb_dibusb *
else
return dibusb_ioctl_cmd(dib,DIBUSB_IOCTL_CMD_DISABLE_STREAM,NULL,0);
break;
- case UMT2_0:
+ case UMT2_0:
return dibusb_set_streaming_mode(dib,onoff);
break;
default:
@@ -159,9 +159,9 @@ int dibusb_streaming(struct usb_dibusb *
int dibusb_urb_init(struct usb_dibusb *dib)
{
int ret,i,bufsize,def_pid_parse = 1;
-
+
/*
- * when reloading the driver w/o replugging the device
+ * when reloading the driver w/o replugging the device
* a timeout occures, this helps
*/
usb_clear_halt(dib->udev,usb_sndbulkpipe(dib->udev,dib->dibdev->dev_cl->pipe_cmd));
@@ -175,7 +175,7 @@ int dibusb_urb_init(struct usb_dibusb *d
memset(dib->urb_list,0,dib->dibdev->dev_cl->urb_count*sizeof(struct urb *));

dib->init_state |= DIBUSB_STATE_URB_LIST;
-
+
bufsize = dib->dibdev->dev_cl->urb_count*dib->dibdev->dev_cl->urb_buffer_size;
deb_info("allocate %d bytes as buffersize for all URBs\n",bufsize);
/* allocate the actual buffer for the URBs */
@@ -185,7 +185,7 @@ int dibusb_urb_init(struct usb_dibusb *d
}
deb_info("allocation complete\n");
memset(dib->buffer,0,bufsize);
-
+
dib->init_state |= DIBUSB_STATE_URB_BUF;

/* allocate and submit the URBs */
@@ -194,13 +194,13 @@ int dibusb_urb_init(struct usb_dibusb *d
return -ENOMEM;
}
deb_info("submitting URB no. %d\n",i);
-
- usb_fill_bulk_urb( dib->urb_list[i], dib->udev,
+
+ usb_fill_bulk_urb( dib->urb_list[i], dib->udev,
usb_rcvbulkpipe(dib->udev,dib->dibdev->dev_cl->pipe_data),
- &dib->buffer[i*dib->dibdev->dev_cl->urb_buffer_size],
- dib->dibdev->dev_cl->urb_buffer_size,
+ &dib->buffer[i*dib->dibdev->dev_cl->urb_buffer_size],
+ dib->dibdev->dev_cl->urb_buffer_size,
dibusb_urb_complete, dib);
-
+
dib->urb_list[i]->transfer_flags = 0;

if ((ret = usb_submit_urb(dib->urb_list[i],GFP_ATOMIC))) {
@@ -222,12 +222,12 @@ int dibusb_urb_init(struct usb_dibusb *d
} else
info("will use pid_parsing.");
break;
- default:
+ default:
break;
}
/* from here on it contains the device and user decision */
dib->pid_parse = def_pid_parse;
-
+
return 0;
}

@@ -241,7 +241,7 @@ int dibusb_urb_exit(struct usb_dibusb *d

/* stop the URBs */
usb_kill_urb(dib->urb_list[i]);
-
+
deb_info("freeing URB no. %d.\n",i);
/* free the URBs */
usb_free_urb(dib->urb_list[i]);
--

-
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