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Writing Device Drivers
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Part I Designing Device Drivers for the Solaris Platform

1.  Overview of Solaris Device Drivers

2.  Solaris Kernel and Device Tree

3.  Multithreading

4.  Properties

5.  Managing Events and Queueing Tasks

6.  Driver Autoconfiguration

7.  Device Access: Programmed I/O

Device Memory

Managing Differences in Device and Host Endianness

Managing Data Ordering Requirements

ddi_device_acc_attr Structure

Mapping Device Memory

Mapping Setup Example

Device Access Functions

Alternate Device Access Interfaces

Memory Space Access

I/O Space Access

PCI Configuration Space Access

8.  Interrupt Handlers

9.  Direct Memory Access (DMA)

10.  Mapping Device and Kernel Memory

11.  Device Context Management

12.  Power Management

13.  Hardening Solaris Drivers

14.  Layered Driver Interface (LDI)

Part II Designing Specific Kinds of Device Drivers

15.  Drivers for Character Devices

16.  Drivers for Block Devices

17.  SCSI Target Drivers

18.  SCSI Host Bus Adapter Drivers

19.  Drivers for Network Devices

20.  USB Drivers

Part III Building a Device Driver

21.  Compiling, Loading, Packaging, and Testing Drivers

22.  Debugging, Testing, and Tuning Device Drivers

23.  Recommended Coding Practices

Part IV Appendixes

A.  Hardware Overview

B.  Summary of Solaris DDI/DKI Services

C.  Making a Device Driver 64-Bit Ready

D.  Console Frame Buffer Drivers


Chapter 7

Device Access: Programmed I/O

The Solaris OS provides driver developers with a comprehensive set of interfaces for accessing device memory. These interfaces are designed to shield the driver from platform-specific dependencies by handling mismatches between processor and device endianness as well as enforcing any data order dependencies the device might have. By using these interfaces, you can develop a single-source driver that runs on both the SPARC and x86 processor architectures as well as the various platforms from each respective processor family.

This chapter provides information on the following subjects: