文件列表:

c64xx (0, 2005-02-25)
c64xx\c64xx_pci.c (22130, 2003-11-04)
c64xx\c64xx_pci.pjt (631, 2003-11-04)

# # Copyright 2003 by Texas Instruments Incorporated. # All rights reserved. Property of Texas Instruments Incorporated. # Restricted rights to use, duplicate or disclose this code are # granted through contract. # # # "@(#) DDK 1.11.00.00 11-04-03 (ddk-b13)" TITLE ----- c***xx_pci (generic pci mini driver) USAGE ----- The driver is used to allow the DSP to perform PCI master data tranfers on a PCI bus. It is typically used by other DSP device drivers to perform block transfers to other PCI bus devices or memories. DESCRIPTION ----------- This is an DSP/BIOS IOM mini driver for the C***xx devices that contain a PCI peripheral, such as the C***15 or C***16 DSPs. It does data master transfers between DSP and other devices/memory on the pci bus. The PCI peripheral device does not perform the system PCI bus arbitration, but relies on a PCI host such as a PC. FILES ----- - c***xx_pci.pjt: project file for building the driver library. - c***xx_pci.c: implementation of the driver. - ../include/c***xx_pci.h: driver header file. - readme.txt: this file NOTES ---- - Files in the library are compiled with no optimization switches turned on, and the same is true for the project files. If you plan to use this module in a product release, it is advised that you rebuild the library with optimization turned on. - This driver's EEPROM related control functions are one to one CSL calls. Refer to the CSL API manual for the definitions of status/data. Some macros (PCI_xxxx) are from the CSL, so you will need to include in your code. Known Problems At Release ------------------------- - None. Q&A --- Q1: How do I change default pci queue priority? A1: Instead of passing NULL to IOM_create()'s optArgs parameter, define C***XX_PCI_Attrs and pass it as optArgs. --- Q2: How do I change the C***XX_PCI_DevParams parameters? A2: - Step 1, You need to define the parameter structure with all the fields in your application file before main(). Example: different EDMA interrupt id. C***XX_PCI_DevParams myParams = { \ C***XX_PCI_VERSION_1, \ 6, \ -1, \ NULL, \ C***XX_PCI_INTR_MASK_DEFAULT \ }; This example sets PCI interrupt id to 6 and not register Error Events. PCI interrupt will be plugged into hwi6. - Step 2, Pass "_myParams" to the User-Defined Device parameter. --- Q3: Where can I find documentation on writing mini drivers? A3: The literature number is SPRU616, DSP/BIOS Device Driver Developer's Guide.

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