---

yaml --- r: 261736 b: refs/heads/master c: 6c6e3b8 h: refs/heads/master v: v3
git-mirror · Jul 30, 2011 · cd3c715 · cd3c715
1 parent a007c98
commit cd3c715
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diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d272281c390eb6c3f1e70ed0337c9e619d99cd9c
+refs/heads/master: 6c6e3b828b2a13b923b9465fc4316c5bdc92291f
diff --git a/trunk/Documentation/ABI/testing/sysfs-module b/trunk/Documentation/ABI/testing/sysfs-module
@@ -10,3 +10,26 @@ KernelVersion:	2.6.35
 Contact:	masa-korg@dsn.okisemi.com
 Description:	Write/read Option ROM data.
 
+
+What:		/sys/module/ehci_hcd/drivers/.../uframe_periodic_max
+Date:		July 2011
+KernelVersion:	3.1
+Contact:	Kirill Smelkov <kirr@mns.spb.ru>
+Description:	Maximum time allowed for periodic transfers per microframe (μs)
+
+		[ USB 2.0 sets maximum allowed time for periodic transfers per
+		  microframe to be 80%, that is 100 microseconds out of 125
+		  microseconds (full microframe).
+
+		  However there are cases, when 80% max isochronous bandwidth is
+		  too limiting. For example two video streams could require 110
+		  microseconds of isochronous bandwidth per microframe to work
+		  together. ]
+
+		Through this setting it is possible to raise the limit so that
+		the host controller would allow allocating more than 100
+		microseconds of periodic bandwidth per microframe.
+
+		Beware, non-standard modes are usually not thoroughly tested by
+		hardware designers, and the hardware can malfunction when this
+		setting differ from default 100.
diff --git a/trunk/Documentation/DMA-API-HOWTO.txt b/trunk/Documentation/DMA-API-HOWTO.txt
@@ -613,13 +613,13 @@ to use the dma_sync_*() interfaces.
 				pass_to_upper_layers(cp->rx_buf);
 				make_and_setup_new_rx_buf(cp);
 			} else {
-				/* Just sync the buffer and give it back
-				 * to the card.
+				/* CPU should not write to
+				 * DMA_FROM_DEVICE-mapped area,
+				 * so dma_sync_single_for_device() is
+				 * not needed here. It would be required
+				 * for DMA_BIDIRECTIONAL mapping if
+				 * the memory was modified.
 				 */
-				dma_sync_single_for_device(&cp->dev,
-							   cp->rx_dma,
-							   cp->rx_len,
-							   DMA_FROM_DEVICE);
 				give_rx_buf_to_card(cp);
 			}
 		}

diff --git a/trunk/Documentation/DocBook/.gitignore b/trunk/Documentation/DocBook/.gitignore
@@ -8,4 +8,7 @@
 *.dvi
 *.log
 *.out
-media/
+*.png
+*.gif
+media-indices.tmpl
+media-entities.tmpl
diff --git a/trunk/Documentation/DocBook/Makefile b/trunk/Documentation/DocBook/Makefile
@@ -14,7 +14,9 @@ DOCBOOKS := z8530book.xml mcabook.xml device-drivers.xml \
 	    genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \
 	    80211.xml debugobjects.xml sh.xml regulator.xml \
 	    alsa-driver-api.xml writing-an-alsa-driver.xml \
-	    tracepoint.xml media.xml drm.xml
+	    tracepoint.xml drm.xml media_api.xml
+
+include $(srctree)/Documentation/DocBook/media/Makefile
 
 ###
 # The build process is as follows (targets):
@@ -32,7 +34,7 @@ PS_METHOD	= $(prefer-db2x)
 
 ###
 # The targets that may be used.
-PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs xmldoclinks
+PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs
 
 BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
 xmldocs: $(BOOKS)
@@ -45,27 +47,14 @@ PDF := $(patsubst %.xml, %.pdf, $(BOOKS))
 pdfdocs: $(PDF)
 
 HTML := $(sort $(patsubst %.xml, %.html, $(BOOKS)))
-htmldocs: $(HTML) xmldoclinks
+htmldocs: $(HTML)
 	$(call build_main_index)
 	$(call build_images)
+	$(call install_media_images)
 
 MAN := $(patsubst %.xml, %.9, $(BOOKS))
 mandocs: $(MAN)
 
-build_images = mkdir -p $(objtree)/Documentation/DocBook/media/ && \
-	       cp $(srctree)/Documentation/DocBook/dvb/*.png \
-	          $(srctree)/Documentation/DocBook/v4l/*.gif \
-		  $(objtree)/Documentation/DocBook/media/
-
-xmldoclinks:
-ifneq ($(objtree),$(srctree))
-	for dep in dvb media-entities.tmpl media-indices.tmpl v4l; do \
-		rm -f $(objtree)/Documentation/DocBook/$$dep \
-		&& ln -s $(srctree)/Documentation/DocBook/$$dep $(objtree)/Documentation/DocBook/ \
-		|| exit; \
-	done
-endif
-
 installmandocs: mandocs
 	mkdir -p /usr/local/man/man9/
 	install Documentation/DocBook/man/*.9.gz /usr/local/man/man9/
@@ -97,11 +86,11 @@ define rule_docproc
         ) > $(dir $@).$(notdir $@).cmd
 endef
 
-%.xml: %.tmpl xmldoclinks FORCE
+%.xml: %.tmpl FORCE
 	$(call if_changed_rule,docproc)
 
 ###
-#Read in all saved dependency files 
+#Read in all saved dependency files
 cmd_files := $(wildcard $(foreach f,$(BOOKS),$(dir $(f)).$(notdir $(f)).cmd))
 
 ifneq ($(cmd_files),)
@@ -150,7 +139,7 @@ quiet_cmd_db2pdf = PDF     $@
 
 index = index.html
 main_idx = Documentation/DocBook/$(index)
-build_main_index = rm -rf $(main_idx) && \
+build_main_index = rm -rf $(main_idx); \
 		   echo '<h1>Linux Kernel HTML Documentation</h1>' >> $(main_idx) && \
 		   echo '<h2>Kernel Version: $(KERNELVERSION)</h2>' >> $(main_idx) && \
 		   cat $(HTML) >> $(main_idx)
@@ -242,7 +231,7 @@ clean-files := $(DOCBOOKS) \
 
 clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS)) man
 
-cleandocs:
+cleandocs: cleanmediadocs
 	$(Q)rm -f $(call objectify, $(clean-files))
 	$(Q)rm -rf $(call objectify, $(clean-dirs))
 

diff --git a/trunk/Documentation/DocBook/dvb/ca.xml b/trunk/Documentation/DocBook/dvb/ca.xml
-Original file line number
+Diff line change
@@ Expand Up / @@ -8,4 +8,7 @@ @@
     *.dvi
     *.log
     *.out
-    media/
+    *.png
+    *.gif
+    media-indices.tmpl
+    media-entities.tmpl