| Mauro Carvalho Chehab | 447d6fb | 2006-05-22 10:31:37 -0300 | [diff] [blame] | 1 | This document describes how to upload the cx2341x firmware to the card. |
| 2 | |
| 3 | How to find |
| 4 | =========== |
| 5 | |
| 6 | See the web pages of the various projects that uses this chip for information |
| 7 | on how to obtain the firmware. |
| 8 | |
| 9 | The firmware stored in a Windows driver can be detected as follows: |
| 10 | |
| 11 | - Each firmware image is 256k bytes. |
| 12 | - The 1st 32-bit word of the Encoder image is 0x0000da7 |
| 13 | - The 1st 32-bit word of the Decoder image is 0x00003a7 |
| 14 | - The 2nd 32-bit word of both images is 0xaa55bb66 |
| 15 | |
| 16 | How to load |
| 17 | =========== |
| 18 | |
| 19 | - Issue the FWapi command to stop the encoder if it is running. Wait for the |
| 20 | command to complete. |
| 21 | - Issue the FWapi command to stop the decoder if it is running. Wait for the |
| 22 | command to complete. |
| 23 | - Issue the I2C command to the digitizer to stop emitting VSYNC events. |
| 24 | - Issue the FWapi command to halt the encoder's firmware. |
| 25 | - Sleep for 10ms. |
| 26 | - Issue the FWapi command to halt the decoder's firmware. |
| 27 | - Sleep for 10ms. |
| 28 | - Write 0x00000000 to register 0x2800 to stop the Video Display Module. |
| 29 | - Write 0x00000005 to register 0x2D00 to stop the AO (audio output?). |
| 30 | - Write 0x00000000 to register 0xA064 to ping? the APU. |
| 31 | - Write 0xFFFFFFFE to register 0x9058 to stop the VPU. |
| 32 | - Write 0xFFFFFFFF to register 0x9054 to reset the HW blocks. |
| 33 | - Write 0x00000001 to register 0x9050 to stop the SPU. |
| 34 | - Sleep for 10ms. |
| 35 | - Write 0x0000001A to register 0x07FC to init the Encoder SDRAM's pre-charge. |
| 36 | - Write 0x80000640 to register 0x07F8 to init the Encoder SDRAM's refresh to 1us. |
| 37 | - Write 0x0000001A to register 0x08FC to init the Decoder SDRAM's pre-charge. |
| 38 | - Write 0x80000640 to register 0x08F8 to init the Decoder SDRAM's refresh to 1us. |
| 39 | - Sleep for 512ms. (600ms is recommended) |
| 40 | - Transfer the encoder's firmware image to offset 0 in Encoder memory space. |
| 41 | - Transfer the decoder's firmware image to offset 0 in Decoder memory space. |
| 42 | - Use a read-modify-write operation to Clear bit 0 of register 0x9050 to |
| 43 | re-enable the SPU. |
| 44 | - Sleep for 1 second. |
| 45 | - Use a read-modify-write operation to Clear bits 3 and 0 of register 0x9058 |
| 46 | to re-enable the VPU. |
| 47 | - Sleep for 1 second. |
| 48 | - Issue status API commands to both firmware images to verify. |
| 49 | |