Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
  V4L/DVB (10696): Remove outdated README for the flexcop-driver
  V4L/DVB (10695): Update Technisat card documentation
  V4L/DVB (10694): [PATCH] software IRQ watchdog for Flexcop B2C2 DVB PCI cards
  V4L/DVB (10663): soc-camera: fix S_CROP breakage on PXA and SuperH
  V4L/DVB (10659): em28xx: register device to soundcard for sysfs

Documentation/dvb/README.flexcop

-This README escorted the skystar2-driver rewriting procedure. It describes the
-state of the new flexcop-driver set and some internals are written down here
-too.
-
-This document hopefully describes things about the flexcop and its
-device-offsprings. Goal was to write an easy-to-write and easy-to-read set of
-drivers based on the skystar2.c and other information.
-
-Remark: flexcop-pci.c was a copy of skystar2.c, but every line has been
-touched and rewritten.
-
-History & News
-==============
-  2005-04-01 - correct USB ISOC transfers (thanks to Vadim Catana)
-
-
-
-
-General coding processing
-=========================
-
-We should proceed as follows (as long as no one complains):
-
-0) Think before start writing code!
-
-1) rewriting the skystar2.c with the help of the flexcop register descriptions
-and splitting up the files to a pci-bus-part and a flexcop-part.
-The new driver will be called b2c2-flexcop-pci.ko/b2c2-flexcop-usb.ko for the
-device-specific part and b2c2-flexcop.ko for the common flexcop-functions.
-
-2) Search for errors in the leftover of flexcop-pci.c (compare with pluto2.c
-and other pci drivers)
-
-3) make some beautification (see 'Improvements when rewriting (refactoring) is
-done')
-
-4) Testing the new driver and maybe substitute the skystar2.c with it, to reach
-a wider tester audience.
-
-5) creating an usb-bus-part using the already written flexcop code for the pci
-card.
-
-Idea: create a kernel-object for the flexcop and export all important
-functions. This option saves kernel-memory, but maybe a lot of functions have
-to be exported to kernel namespace.
-
-
-Current situation
-=================
-
-0) Done :)
-1) Done (some minor issues left)
-2) Done
-3) Not ready yet, more information is necessary
-4) next to be done (see the table below)
-5) USB driver is working (yes, there are some minor issues)
-
-What seems to be ready?
------------------------
-
-1) Rewriting
-1a) i2c is cut off from the flexcop-pci.c and seems to work
-1b) moved tuner and demod stuff from flexcop-pci.c to flexcop-tuner-fe.c
-1c) moved lnb and diseqc stuff from flexcop-pci.c to flexcop-tuner-fe.c
-1e) eeprom (reading MAC address)
-1d) sram (no dynamic sll size detection (commented out) (using default as JJ told me))
-1f) misc. register accesses for reading parameters (e.g. resetting, revision)
-1g) pid/mac filter (flexcop-hw-filter.c)
-1i) dvb-stuff initialization in flexcop.c (done)
-1h) dma stuff (now just using the size-irq, instead of all-together, to be done)
-1j) remove flexcop initialization from flexcop-pci.c completely (done)
-1l) use a well working dma IRQ method (done, see 'Known bugs and problems and TODO')
-1k) cleanup flexcop-files (remove unused EXPORT_SYMBOLs, make static from
-non-static where possible, moved code to proper places)
-
-2) Search for errors in the leftover of flexcop-pci.c (partially done)
-5a) add MAC address reading
-5c) feeding of ISOC data to the software demux (format of the isochronous data
-and speed optimization, no real error) (thanks to Vadim Catana)
-
-What to do in the near future?
---------------------------------------
-(no special order here)
-
-5) USB driver
-5b) optimize isoc-transfer (submitting/killing isoc URBs when transfer is starting)
-
-Testing changes
----------------
-
-O             = item is working
-P             = item is partially working
-X             = item is not working
-N             = item does not apply here
-<empty field> = item need to be examined
-
-       | PCI                               | USB
-item   | mt352 | nxt2002 | stv0299 | mt312 | mt352 | nxt2002 | stv0299 | mt312
--------+-------+---------+---------+-------+-------+---------+---------+-------
-1a)    | O     |         |         |       | N     | N       | N       | N
-1b)    | O     |         |         |       |       |         | O       |
-1c)    | N     | N       |         |       | N     | N       | O       |
-1d)    |                 O                 |                 O
-1e)    |                 O                 |                 O
-1f)    |                                   P
-1g)    |                                   O
-1h)    |                 P                 |
-1i)    |                 O                 |                 N
-1j)    |                 O                 |                 N
-1l)    |                 O                 |                 N
-2)     |                 O                 |                 N
-5a)    |                 N                 |                 O
-5b)*   |                 N                 |
-5c)    |                 N                 |                 O
-
-* - not done yet
-
-Known bugs and problems and TODO
---------------------------------
-
-1g/h/l) when pid filtering is enabled on the pci card
-
-DMA usage currently:
-  The DMA is splitted in 2 equal-sized subbuffers. The Flexcop writes to first
-  address and triggers an IRQ when it's full and starts writing to the second
-  address. When the second address is full, the IRQ is triggered again, and
-  the flexcop writes to first address again, and so on.
-  The buffersize of each address is currently 640*188 bytes.
-
-  Problem is, when using hw-pid-filtering and doing some low-bandwidth
-  operation (like scanning) the buffers won't be filled enough to trigger
-  the IRQ. That's why:
-
-  When PID filtering is activated, the timer IRQ is used. Every 1.97 ms the IRQ
-  is triggered.  Is the current write address of DMA1 different to the one
-  during the last IRQ, then the data is passed to the demuxer.
-
-  There is an additional DMA-IRQ-method: packet count IRQ. This isn't
-  implemented correctly yet.
-
-  The solution is to disable HW PID filtering, but I don't know how the DVB
-  API software demux behaves on slow systems with 45MBit/s TS.
-
-Solved bugs :)
---------------
-1g) pid-filtering (somehow pid index 4 and 5 (EMM_PID and ECM_PID) aren't
-working)
-SOLUTION: also index 0 was affected, because net_translation is done for
-these indexes by default
-
-5b) isochronous transfer does only work in the first attempt (for the Sky2PC
-USB, Air2PC is working) SOLUTION: the flexcop was going asleep and never really
-woke up again (don't know if this need fixes, see
-flexcop-fe-tuner.c:flexcop_sleep)
-
-NEWS: when the driver is loaded and unloaded and loaded again (w/o doing
-anything in the while the driver is loaded the first time), no transfers take
-place anymore.
-
-Improvements when rewriting (refactoring) is done
-=================================================
-
-- split sleeping of the flexcop (misc_204.ACPI3_sig = 1;) from lnb_control
-  (enable sleeping for other demods than dvb-s)
-- add support for CableStar (stv0297 Microtune 203x/ALPS) (almost done, incompatibilities with the Nexus-CA)
-
-Debugging
----------
-- add verbose debugging to skystar2.c (dump the reg_dw_data) and compare it
-  with this flexcop, this is important, because i2c is now using the
-  flexcop_ibi_value union from flexcop-reg.h (do you have a better idea for
-  that, please tell us so).
-
-Everything which is identical in the following table, can be put into a common
-flexcop-module.
-
-		  PCI                  USB
--------------------------------------------------------------------------------
-Different:
-Register access:  accessing IO memory  USB control message
-I2C bus:          I2C bus of the FC    USB control message
-Data transfer:    DMA                  isochronous transfer
-EEPROM transfer:  through i2c bus      not clear yet
-
-Identical:
-Streaming:                 accessing registers
-PID Filtering:             accessing registers
-Sram destinations:         accessing registers
-Tuner/Demod:                     I2C bus
-DVB-stuff:            can be written for common use
-
-Acknowledgements (just for the rewriting part)
-================
-
-Bjarne Steinsbo thought a lot in the first place of the pci part for this code
-sharing idea.
-
-Andreas Oberritter for providing a recent PCI initialization template
-(pluto2.c).
-
-Boleslaw Ciesielski for pointing out a problem with firmware loader.
-
-Vadim Catana for correcting the USB transfer.
-
-comments, critics and ideas to linux-dvb@linuxtv.org.

Documentation/dvb/technisat.txt

-How to set up the Technisat devices
-===================================
+How to set up the Technisat/B2C2 Flexcop devices
+================================================
 
 1) Find out what device you have
 ================================
@@ -16,54 +16,60 @@ DVB: registering frontend 0 (Conexant CX24123/CX24109)...
 
 If the Technisat is the only TV device in your box get rid of unnecessary modules and check this one:
 "Multimedia devices" => "Customise analog and hybrid tuner modules to build"
-In this directory uncheck every driver which is activated there.
+In this directory uncheck every driver which is activated there (except "Simple tuner support" for case 9 only).
 
 Then please activate:
 2a) Main module part:
 
 a.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters"
-b.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Technisat/B2C2 Air/Sky/Cable2PC PCI" in case of a PCI card OR
+b.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Technisat/B2C2 Air/Sky/Cable2PC PCI" in case of a PCI card
+OR
 c.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Technisat/B2C2 Air/Sky/Cable2PC USB" in case of an USB 1.1 adapter
 d.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Enable debug for the B2C2 FlexCop drivers"
 Notice: d.) is helpful for troubleshooting
 
 2b) Frontend module part:
 
-1.) Revision 2.3:
+1.) SkyStar DVB-S Revision 2.3:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "Zarlink VP310/MT312/ZL10313 based"
 
-2.) Revision 2.6:
+2.) SkyStar DVB-S Revision 2.6:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "ST STV0299 based"
 
-3.) Revision 2.7:
+3.) SkyStar DVB-S Revision 2.7:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "Samsung S5H1420 based"
 c.)"Multimedia devices" => "Customise DVB frontends" => "Integrant ITD1000 Zero IF tuner for DVB-S/DSS"
 d.)"Multimedia devices" => "Customise DVB frontends" => "ISL6421 SEC controller"
 
-4.) Revision 2.8:
+4.) SkyStar DVB-S Revision 2.8:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "Conexant CX24113/CX24128 tuner for DVB-S/DSS"
 c.)"Multimedia devices" => "Customise DVB frontends" => "Conexant CX24123 based"
 d.)"Multimedia devices" => "Customise DVB frontends" => "ISL6421 SEC controller"
 
-5.) DVB-T card:
+5.) AirStar DVB-T card:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "Zarlink MT352 based"
 
-6.) DVB-C card:
+6.) CableStar DVB-C card:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "ST STV0297 based"
 
-7.) ATSC card 1st generation:
+7.) AirStar ATSC card 1st generation:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "Broadcom BCM3510"
 
-8.) ATSC card 2nd generation:
+8.) AirStar ATSC card 2nd generation:
 a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
 b.)"Multimedia devices" => "Customise DVB frontends" => "NxtWave Communications NXT2002/NXT2004 based"
-c.)"Multimedia devices" => "Customise DVB frontends" => "LG Electronics LGDT3302/LGDT3303 based"
+c.)"Multimedia devices" => "Customise DVB frontends" => "Generic I2C PLL based tuners"
 
-Author: Uwe Bugla <uwe.bugla@gmx.de> December 2008
+9.) AirStar ATSC card 3rd generation:
+a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
+b.)"Multimedia devices" => "Customise DVB frontends" => "LG Electronics LGDT3302/LGDT3303 based"
+c.)"Multimedia devices" => "Customise analog and hybrid tuner modules to build" => "Simple tuner support"
+
+Author: Uwe Bugla <uwe.bugla@gmx.de> February 2009

drivers/media/dvb/b2c2/flexcop-hw-filter.c

@@ -192,6 +192,7 @@ int flexcop_pid_feed_control(struct flexcop_device *fc, struct dvb_demux_feed *d
 
 	return 0;
 }
+EXPORT_SYMBOL(flexcop_pid_feed_control);
 
 void flexcop_hw_filter_init(struct flexcop_device *fc)
 {

drivers/media/dvb/b2c2/flexcop-pci.c

@@ -13,9 +13,9 @@ static int enable_pid_filtering = 1;
 module_param(enable_pid_filtering, int, 0444);
 MODULE_PARM_DESC(enable_pid_filtering, "enable hardware pid filtering: supported values: 0 (fullts), 1");
 
-static int irq_chk_intv;
+static int irq_chk_intv = 100;
 module_param(irq_chk_intv, int, 0644);
-MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ watchdog (currently just debugging).");
+MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ streaming watchdog.");
 
 #ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
 #define dprintk(level,args...) \
@@ -34,7 +34,9 @@ MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ watchdog (currently jus
 
 static int debug;
 module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "set debug level (1=info,2=regs,4=TS,8=irqdma (|-able))." DEBSTATUS);
+MODULE_PARM_DESC(debug,
+	"set debug level (1=info,2=regs,4=TS,8=irqdma,16=check (|-able))."
+	 DEBSTATUS);
 
 #define DRIVER_VERSION "0.1"
 #define DRIVER_NAME "Technisat/B2C2 FlexCop II/IIb/III Digital TV PCI Driver"
@@ -58,6 +60,8 @@ struct flexcop_pci {
 	int active_dma1_addr; /* 0 = addr0 of dma1; 1 = addr1 of dma1 */
 	u32 last_dma1_cur_pos; /* position of the pointer last time the timer/packet irq occured */
 	int count;
+	int count_prev;
+	int stream_problem;
 
 	spinlock_t irq_lock;
 
@@ -103,18 +107,32 @@ static void flexcop_pci_irq_check_work(struct work_struct *work)
 		container_of(work, struct flexcop_pci, irq_check_work.work);
 	struct flexcop_device *fc = fc_pci->fc_dev;
 
-	flexcop_ibi_value v = fc->read_ibi_reg(fc,sram_dest_reg_714);
-
-	flexcop_dump_reg(fc_pci->fc_dev,dma1_000,4);
-
-	if (v.sram_dest_reg_714.net_ovflow_error)
-		deb_chk("sram net_ovflow_error\n");
-	if (v.sram_dest_reg_714.media_ovflow_error)
-		deb_chk("sram media_ovflow_error\n");
-	if (v.sram_dest_reg_714.cai_ovflow_error)
-		deb_chk("sram cai_ovflow_error\n");
-	if (v.sram_dest_reg_714.cai_ovflow_error)
-		deb_chk("sram cai_ovflow_error\n");
+	if (fc->feedcount) {
+
+		if (fc_pci->count == fc_pci->count_prev) {
+			deb_chk("no IRQ since the last check\n");
+			if (fc_pci->stream_problem++ == 3) {
+				struct dvb_demux_feed *feed;
+
+				spin_lock_irq(&fc->demux.lock);
+				list_for_each_entry(feed, &fc->demux.feed_list,
+					list_head) {
+					flexcop_pid_feed_control(fc, feed, 0);
+				}
+
+				list_for_each_entry(feed, &fc->demux.feed_list,
+					list_head) {
+					flexcop_pid_feed_control(fc, feed, 1);
+				}
+				spin_unlock_irq(&fc->demux.lock);
+
+				fc_pci->stream_problem = 0;
+			}
+		} else {
+			fc_pci->stream_problem = 0;
+			fc_pci->count_prev = fc_pci->count;
+		}
+	}
 
 	schedule_delayed_work(&fc_pci->irq_check_work,
 			msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv));
@@ -216,16 +234,12 @@ static int flexcop_pci_stream_control(struct flexcop_device *fc, int onoff)
 		flexcop_dma_control_timer_irq(fc,FC_DMA_1,1);
 		deb_irq("IRQ enabled\n");
 
+		fc_pci->count_prev = fc_pci->count;
+
 //		fc_pci->active_dma1_addr = 0;
 //		flexcop_dma_control_size_irq(fc,FC_DMA_1,1);
 
-		if (irq_chk_intv > 0)
-			schedule_delayed_work(&fc_pci->irq_check_work,
-					msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv));
 	} else {
-		if (irq_chk_intv > 0)
-			cancel_delayed_work(&fc_pci->irq_check_work);
-
 		flexcop_dma_control_timer_irq(fc,FC_DMA_1,0);
 		deb_irq("IRQ disabled\n");
 
@@ -299,8 +313,6 @@ static int flexcop_pci_init(struct flexcop_pci *fc_pci)
 					IRQF_SHARED, DRIVER_NAME, fc_pci)) != 0)
 		goto err_pci_iounmap;
 
-
-
 	fc_pci->init_state |= FC_PCI_INIT;
 	return ret;
 
@@ -375,6 +387,10 @@ static int flexcop_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
 
 	INIT_DELAYED_WORK(&fc_pci->irq_check_work, flexcop_pci_irq_check_work);
 
+		if (irq_chk_intv > 0)
+			schedule_delayed_work(&fc_pci->irq_check_work,
+		msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv));
+
 	return ret;
 
 err_fc_exit:
@@ -393,6 +409,9 @@ static void flexcop_pci_remove(struct pci_dev *pdev)
 {
 	struct flexcop_pci *fc_pci = pci_get_drvdata(pdev);
 
+	if (irq_chk_intv > 0)
+		cancel_delayed_work(&fc_pci->irq_check_work);
+
 	flexcop_pci_dma_exit(fc_pci);
 	flexcop_device_exit(fc_pci->fc_dev);
 	flexcop_pci_exit(fc_pci);

drivers/media/dvb/b2c2/flexcop.c

@@ -212,8 +212,7 @@ void flexcop_reset_block_300(struct flexcop_device *fc)
 	v210.sw_reset_210.Block_reset_enable = 0xb2;
 
 	fc->write_ibi_reg(fc,sw_reset_210,v210);
-	msleep(1);
-
+	udelay(1000);
 	fc->write_ibi_reg(fc,ctrl_208,v208_save);
 }
 

drivers/media/video/em28xx/em28xx-audio.c

@@ -463,6 +463,8 @@ static int em28xx_audio_init(struct em28xx *dev)
 	pcm->info_flags = 0;
 	pcm->private_data = dev;
 	strcpy(pcm->name, "Empia 28xx Capture");
+
+	snd_card_set_dev(card, &dev->udev->dev);
 	strcpy(card->driver, "Empia Em28xx Audio");
 	strcpy(card->shortname, "Em28xx Audio");
 	strcpy(card->longname, "Empia Em28xx Audio");

drivers/media/video/pxa_camera.c

@@ -1155,23 +1155,23 @@ static int pxa_camera_set_fmt(struct soc_camera_device *icd,
 {
 	struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
 	struct pxa_camera_dev *pcdev = ici->priv;
-	const struct soc_camera_data_format *host_fmt, *cam_fmt = NULL;
-	const struct soc_camera_format_xlate *xlate;
+	const struct soc_camera_data_format *cam_fmt = NULL;
+	const struct soc_camera_format_xlate *xlate = NULL;
 	struct soc_camera_sense sense = {
 		.master_clock = pcdev->mclk,
 		.pixel_clock_max = pcdev->ciclk / 4,
 	};
-	int ret, buswidth;
+	int ret;
 
-	xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
-	if (!xlate) {
-		dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
-		return -EINVAL;
-	}
+	if (pixfmt) {
+		xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
+		if (!xlate) {
+			dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
+			return -EINVAL;
+		}
 
-	buswidth = xlate->buswidth;
-	host_fmt = xlate->host_fmt;
-	cam_fmt = xlate->cam_fmt;
+		cam_fmt = xlate->cam_fmt;
+	}
 
 	/* If PCLK is used to latch data from the sensor, check sense */
 	if (pcdev->platform_flags & PXA_CAMERA_PCLK_EN)
@@ -1201,8 +1201,8 @@ static int pxa_camera_set_fmt(struct soc_camera_device *icd,
 	}
 
 	if (pixfmt && !ret) {
-		icd->buswidth = buswidth;
-		icd->current_fmt = host_fmt;
+		icd->buswidth = xlate->buswidth;
+		icd->current_fmt = xlate->host_fmt;
 	}
 
 	return ret;

drivers/media/video/sh_mobile_ceu_camera.c

@@ -603,21 +603,18 @@ static int sh_mobile_ceu_set_fmt(struct soc_camera_device *icd,
 	const struct soc_camera_format_xlate *xlate;
 	int ret;
 
+	if (!pixfmt)
+		return icd->ops->set_fmt(icd, pixfmt, rect);
+
 	xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
 	if (!xlate) {
 		dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
 		return -EINVAL;
 	}
 
-	switch (pixfmt) {
-	case 0:				/* Only geometry change */
-		ret = icd->ops->set_fmt(icd, pixfmt, rect);
-		break;
-	default:
-		ret = icd->ops->set_fmt(icd, xlate->cam_fmt->fourcc, rect);
-	}
+	ret = icd->ops->set_fmt(icd, xlate->cam_fmt->fourcc, rect);
 
-	if (pixfmt && !ret) {
+	if (!ret) {
 		icd->buswidth = xlate->buswidth;
 		icd->current_fmt = xlate->host_fmt;
 		pcdev->camera_fmt = xlate->cam_fmt;