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authorHans Verkuil <hverkuil@xs4all.nl>2007-01-22 16:27:47 -0500
committerMauro Carvalho Chehab <mchehab@infradead.org>2007-02-21 10:34:48 -0500
commita63ad325c337ba634824cefe54f7ac52ee554b72 (patch)
tree2d53a0a03b048d83ec5dd09e0ea4933cbf8d3448 /Documentation/video4linux/cx2341x/fw-memory.txt
parent5cc1dd8c3d8f80dbdce4d2e981a5e452af4b4529 (diff)
V4L/DVB (5119): Various cx2341x documentation updates/fixes.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'Documentation/video4linux/cx2341x/fw-memory.txt')
-rw-r--r--Documentation/video4linux/cx2341x/fw-memory.txt4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/video4linux/cx2341x/fw-memory.txt b/Documentation/video4linux/cx2341x/fw-memory.txt
index d445e457fc1b..9d736fe8de66 100644
--- a/Documentation/video4linux/cx2341x/fw-memory.txt
+++ b/Documentation/video4linux/cx2341x/fw-memory.txt
@@ -1,6 +1,8 @@
1This document describes the cx2341x memory map and documents some of the register 1This document describes the cx2341x memory map and documents some of the register
2space. 2space.
3 3
4Note: the memory long words are little-endian ('intel format').
5
4Warning! This information was figured out from searching through the memory and 6Warning! This information was figured out from searching through the memory and
5registers, this information may not be correct and is certainly not complete, and 7registers, this information may not be correct and is certainly not complete, and
6was not derived from anything more than searching through the memory space with 8was not derived from anything more than searching through the memory space with
@@ -67,7 +69,7 @@ DMA Registers 0x000-0xff:
67 0x84 - first write linked list reg, for pci memory addr 69 0x84 - first write linked list reg, for pci memory addr
68 0x88 - first write linked list reg, for length of buffer in memory addr 70 0x88 - first write linked list reg, for length of buffer in memory addr
69 (|0x80000000 or this for last link) 71 (|0x80000000 or this for last link)
70 0x8c-0xcc - rest of write linked list reg, 8 sets of 3 total, DMA goes here 72 0x8c-0xdc - rest of write linked list reg, 8 sets of 3 total, DMA goes here
71 from linked list addr in reg 0x0c, firmware must push through or 73 from linked list addr in reg 0x0c, firmware must push through or
72 something. 74 something.
73 0xe0 - first (and only) read linked list reg, for pci memory addr 75 0xe0 - first (and only) read linked list reg, for pci memory addr