From e28a6bf75de1d098df46f46d710ebb0aefb21db7 Mon Sep 17 00:00:00 2001 From: Benedikt Spranger Date: Tue, 24 Nov 2009 10:52:22 +0100 Subject: Platform device added --- .../module-basics/pres_module-basics_de.tex | 197 ++++++++++++++++++++- 1 file changed, 191 insertions(+), 6 deletions(-) (limited to 'kernel-devel/module-basics/pres_module-basics_de.tex') diff --git a/kernel-devel/module-basics/pres_module-basics_de.tex b/kernel-devel/module-basics/pres_module-basics_de.tex index a62397c..533a668 100644 --- a/kernel-devel/module-basics/pres_module-basics_de.tex +++ b/kernel-devel/module-basics/pres_module-basics_de.tex @@ -134,22 +134,22 @@ vain_exit: done % ----- Slide Komplexere Module ------------------ \begin{frame} -\frametitle{Komplexere Modul} +\frametitle{Komplexere Module} \pause \begin{itemize} \item Teil eines Bussystems \pause \begin{itemize} -\item USB -\pause \item PCI \pause \item Platform \pause +\item USB +\pause \item \dots \pause \end{itemize} -\item Teil eines Subsystems +\item Teil eines Subsystems\footnote{nicht Teil des Vortrages} \pause \begin{itemize} \item Character-Devices @@ -182,7 +182,7 @@ vain_exit: done \pause \begin{tiny} \begin{lstlisting}[frame=trBL] -static int vain_pci_init(void) +static int __init vain_pci_init(void) { int err; @@ -207,7 +207,7 @@ module_init(vain_pci_init); \pause \begin{tiny} \begin{lstlisting}[frame=trBL] -static void vain_pci_exit(void) +static void __exit vain_pci_exit(void) { |pci_unregister_driver(&vain_pci_driver);| printk(KERN_INFO ``vain_pci_exit: done\n''); @@ -368,4 +368,189 @@ module_exit(vain_pci_exit); \end{tiny} \end{frame} +% ----- Slide Platform Treiber ------------------ +\begin{frame}[fragile] +\frametitle{Aufbau eines Platform Treiber Moduls} +\pause +\begin{itemize} +\item Header +\pause +\begin{tiny} +\begin{lstlisting}[frame=trBL] +#include +#include +|#include + +#include | +\end{lstlisting} +\end{tiny} +\pause +\item Init +\pause +\begin{tiny} +\begin{lstlisting}[frame=trBL] +static int __init vain_plat_init(void) +{ + int err; + + |err = platform_driver_register(&vain_plat_driver);| + + if (!err) + printk(KERN_INFO ``vain_plat_init: done\n''); + return err; +} +\end{lstlisting} +\end{tiny} +\end{itemize} +\end{frame} + +% ----- Slide Platform Treiber ------------------ +\begin{frame}[fragile] +\frametitle{Aufbau eines Platform Treiber Moduls (fort.)} +\pause +\begin{itemize} +\item Exit +\pause +\begin{tiny} +\begin{lstlisting}[frame=trBL] +static void __exit vain_plat_exit(void) +{ + |platform_driver_unregister(&vain_plat_driver);| + printk(KERN_INFO ``vain_plat_exit: done\n''); +} +\end{lstlisting} +\end{tiny} +\end{itemize} +\end{frame} + +% ----- Slide Platform Treiber ------------------ +\begin{frame}[fragile] +\frametitle{Aufbau eines Platform Treiber Moduls (fort.)} +\pause +\begin{itemize} +\item struct platform\_driver +\pause +\begin{tiny} +\begin{lstlisting}[frame=trBL] +|static struct platform_driver vain_plat_driver = { + .driver = { + .name = "vain_plat", + .owner = THIS_MODULE, + }, + .probe = vain_plat_probe, + .remove = __devexit_p(vain_plat_remove), +};| +\end{lstlisting} +\end{tiny} +\end{itemize} +\end{frame} + +% ----- Slide Platform Treiber ------------------ +\begin{frame}[fragile] +\frametitle{Aufbau eines Platform Treiber Moduls (fort.)} +\pause +\begin{itemize} +\item probe +\pause +\begin{tiny} +\begin{lstlisting}[frame=trBL] +|static int __devinit vain_plat_probe(struct platform_device *pdev) +{ + struct resource *res; + int err; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (unlikely(!res)) + goto err_free; + + mem = request_mem_region(res->start, resource_size(res), pdev->name); + if (!mem) + goto err_free; + + info->base = ioremap(res->start, resource_size(res)); + if (!info->base) + goto err_ioremap; + + platform_set_drvdata(pdev, info); + + return 0;| +\end{lstlisting} +\end{tiny} +\end{itemize} +\end{frame} + +% ----- Slide Platform Treiber ------------------ +\begin{frame}[fragile] +\frametitle{Aufbau eines Platform Treiber Moduls (fort.)} +\pause +\begin{itemize} +\item remove +\pause +\begin{tiny} +\begin{lstlisting}[frame=trBL] +|static int __devexit vain_plat_remove(struct platform_device *pdev) +{ + struct vain_plat_info *info = platform_get_drvdata(pdev); + struct resource *res; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + iounmap(info->base); + release_mem_region(res->start, resource_size(res)); + platform_set_drvdata(pdev, NULL); + + kfree (info); + + return 0; +}| +\end{lstlisting} +\end{tiny} +\end{itemize} +\end{frame} + +% ----- Slide PCI Treiber Hintergrund ------------------ +\begin{frame} +\frametitle{Platform Treiber Hintergrund} +\includegraphics[width=7cm]{images/plat_driver.png} +\end{frame} + +% ----- Slide Platform Rumpf Treiber ------------------ +\begin{frame}[fragile] +\frametitle{Platform Rumpf Treiber} +\begin{tiny} +\lstinputlisting{vain_plat/vain_plat_1.c} +\end{tiny} +\end{frame} + +% ----- Slide Platform Rumpf Treiber (fort.) ------------------ +\begin{frame}[fragile] +\frametitle{Platform Rumpf Treiber (fort.)} +\begin{tiny} +\lstinputlisting{vain_plat/vain_plat_2.c} +\end{tiny} +\end{frame} + +% ----- Slide Platform Rumpf Treiber (fort.) ------------------ +\begin{frame}[fragile] +\frametitle{Platform Rumpf Treiber (fort.)} +\begin{tiny} +\lstinputlisting{vain_plat/vain_plat_3.c} +\end{tiny} +\end{frame} + +% ----- Slide Platform Rumpf Treiber (fort.) ------------------ +\begin{frame}[fragile] +\frametitle{Platform Rumpf Treiber (fort.)} +\begin{tiny} +\lstinputlisting{vain_plat/vain_plat_4.c} +\end{tiny} +\end{frame} + +% ----- Slide Platform Rumpf Treiber (fort.) ------------------ +\begin{frame}[fragile] +\frametitle{Platform Rumpf Treiber (fort.)} +\begin{tiny} +\lstinputlisting{vain_plat/vain_plat_5.c} +\end{tiny} +\end{frame} + \end{document} -- cgit v1.2.3