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authorLinus Torvalds <torvalds@g5.osdl.org>2006-06-25 10:09:31 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-25 10:09:31 -0700
commit25581ad107be24b89d805da51a03d616f8f3d1be (patch)
tree36e2bd32667b5dd5a39e1939c1c5162f18967715 /Documentation/video4linux/cx2341x/fw-upload.txt
parent72cf2709bf8e0410800f118c4298bfbf8715b303 (diff)
parent7477ddaa4d2d69bbcd49e12990af158dbb03f2f2 (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb
* master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (244 commits) V4L/DVB (4210b): git-dvb: tea575x-tuner build fix V4L/DVB (4210a): git-dvb versus matroxfb V4L/DVB (4209): Added some BTTV PCI IDs for newer boards Fixes some sync issues between V4L/DVB development and GIT V4L/DVB (4206): Cx88-blackbird: always set encoder height based on tvnorm->id V4L/DVB (4205): Merge tda9887 module into tuner. V4L/DVB (4203): Explicitly set the enum values. V4L/DVB (4202): allow selecting CX2341x port mode V4L/DVB (4200): Disable bitrate_mode when encoding mpeg-1. V4L/DVB (4199): Add cx2341x-specific control array to cx2341x.c V4L/DVB (4198): Avoid newer usages of obsoleted experimental MPEGCOMP API V4L/DVB (4197): Port new MPEG API to saa7134-empress with saa6752hs V4L/DVB (4196): Port cx88-blackbird to the new MPEG API. V4L/DVB (4193): Update cx2341x fw encoding API doc. V4L/DVB (4192): Use control helpers for saa7115, cx25840, msp3400. V4L/DVB (4191): Add CX2341X MPEG encoder module. V4L/DVB (4190): Add helper functions for control processing to v4l2-common. V4L/DVB (4189): Add videodev support for VIDIOC_S/G/TRY_EXT_CTRLS. V4L/DVB (4188): Add new MPEG control/ioctl definitions to videodev2.h V4L/DVB (4186): Add support for the DNTV Live! mini DVB-T card. ...
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+This document describes how to upload the cx2341x firmware to the card.
+
+How to find
+===========
+
+See the web pages of the various projects that uses this chip for information
+on how to obtain the firmware.
+
+The firmware stored in a Windows driver can be detected as follows:
+
+- Each firmware image is 256k bytes.
+- The 1st 32-bit word of the Encoder image is 0x0000da7
+- The 1st 32-bit word of the Decoder image is 0x00003a7
+- The 2nd 32-bit word of both images is 0xaa55bb66
+
+How to load
+===========
+
+- Issue the FWapi command to stop the encoder if it is running. Wait for the
+ command to complete.
+- Issue the FWapi command to stop the decoder if it is running. Wait for the
+ command to complete.
+- Issue the I2C command to the digitizer to stop emitting VSYNC events.
+- Issue the FWapi command to halt the encoder's firmware.
+- Sleep for 10ms.
+- Issue the FWapi command to halt the decoder's firmware.
+- Sleep for 10ms.
+- Write 0x00000000 to register 0x2800 to stop the Video Display Module.
+- Write 0x00000005 to register 0x2D00 to stop the AO (audio output?).
+- Write 0x00000000 to register 0xA064 to ping? the APU.
+- Write 0xFFFFFFFE to register 0x9058 to stop the VPU.
+- Write 0xFFFFFFFF to register 0x9054 to reset the HW blocks.
+- Write 0x00000001 to register 0x9050 to stop the SPU.
+- Sleep for 10ms.
+- Write 0x0000001A to register 0x07FC to init the Encoder SDRAM's pre-charge.
+- Write 0x80000640 to register 0x07F8 to init the Encoder SDRAM's refresh to 1us.
+- Write 0x0000001A to register 0x08FC to init the Decoder SDRAM's pre-charge.
+- Write 0x80000640 to register 0x08F8 to init the Decoder SDRAM's refresh to 1us.
+- Sleep for 512ms. (600ms is recommended)
+- Transfer the encoder's firmware image to offset 0 in Encoder memory space.
+- Transfer the decoder's firmware image to offset 0 in Decoder memory space.
+- Use a read-modify-write operation to Clear bit 0 of register 0x9050 to
+ re-enable the SPU.
+- Sleep for 1 second.
+- Use a read-modify-write operation to Clear bits 3 and 0 of register 0x9058
+ to re-enable the VPU.
+- Sleep for 1 second.
+- Issue status API commands to both firmware images to verify.
+