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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-04-18 12:12:14 -0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-04-18 12:12:14 -0400
commitfac56c2df51bc29b07b3c2dcfabf32a015a0522c (patch)
tree1ff5d84ecf4ea0bcbd42e2ef9624b5ade3810890 /Documentation/video4linux/pxa_camera.txt
parent6caa15d0b84d2ea688fd31f4f172c8353463e109 (diff)
parenta6360dd37e1a144ed11e6548371bade559a1e4df (diff)
Merge commit 'v2.6.39-rc3' into for-2.6.39
Diffstat (limited to 'Documentation/video4linux/pxa_camera.txt')
-rw-r--r--Documentation/video4linux/pxa_camera.txt8
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/video4linux/pxa_camera.txt b/Documentation/video4linux/pxa_camera.txt
index 4f6d0ca01956..51ed1578b0e8 100644
--- a/Documentation/video4linux/pxa_camera.txt
+++ b/Documentation/video4linux/pxa_camera.txt
@@ -84,12 +84,12 @@ DMA usage
84 transfer is not started. On "End Of Frame" interrupt, the irq handler 84 transfer is not started. On "End Of Frame" interrupt, the irq handler
85 starts the DMA chain. 85 starts the DMA chain.
86 - capture of one videobuffer 86 - capture of one videobuffer
87 The DMA chain starts transfering data into videobuffer RAM pages. 87 The DMA chain starts transferring data into videobuffer RAM pages.
88 When all pages are transfered, the DMA irq is raised on "ENDINTR" status 88 When all pages are transferred, the DMA irq is raised on "ENDINTR" status
89 - finishing one videobuffer 89 - finishing one videobuffer
90 The DMA irq handler marks the videobuffer as "done", and removes it from 90 The DMA irq handler marks the videobuffer as "done", and removes it from
91 the active running queue 91 the active running queue
92 Meanwhile, the next videobuffer (if there is one), is transfered by DMA 92 Meanwhile, the next videobuffer (if there is one), is transferred by DMA
93 - finishing the last videobuffer 93 - finishing the last videobuffer
94 On the DMA irq of the last videobuffer, the QCI is stopped. 94 On the DMA irq of the last videobuffer, the QCI is stopped.
95 95
@@ -101,7 +101,7 @@ DMA usage
101 101
102 This structure is pointed by dma->sg_cpu. 102 This structure is pointed by dma->sg_cpu.
103 The descriptors are used as follows : 103 The descriptors are used as follows :
104 - desc-sg[i]: i-th descriptor, transfering the i-th sg 104 - desc-sg[i]: i-th descriptor, transferring the i-th sg
105 element to the video buffer scatter gather 105 element to the video buffer scatter gather
106 - finisher: has ddadr=DADDR_STOP, dcmd=ENDIRQEN 106 - finisher: has ddadr=DADDR_STOP, dcmd=ENDIRQEN
107 - linker: has ddadr= desc-sg[0] of next video buffer, dcmd=0 107 - linker: has ddadr= desc-sg[0] of next video buffer, dcmd=0