diff options
Diffstat (limited to 'kernel-devel')
| -rw-r--r-- | kernel-devel/char-device/Makefile | 1 | ||||
| -rw-r--r-- | kernel-devel/char-device/pres_char-device_de.tex | 287 | ||||
| -rw-r--r-- | kernel-devel/module-basics/Makefile | 1 | ||||
| -rw-r--r-- | kernel-devel/module-basics/pres_module-basics_de.tex | 523 |
4 files changed, 0 insertions, 812 deletions
diff --git a/kernel-devel/char-device/Makefile b/kernel-devel/char-device/Makefile index 094719f..f5ce0ab 100644 --- a/kernel-devel/char-device/Makefile +++ b/kernel-devel/char-device/Makefile @@ -1,3 +1,2 @@ obj-$(CONFIG_KERNEL_CHAR_DEV) += hints_char-device_de.pdf -obj-$(CONFIG_KERNEL_CHAR_DEV) += pres_char-device_de.pdf obj-$(CONFIG_KERNEL_CHAR_DEV) += pres_char-device_en.pdf diff --git a/kernel-devel/char-device/pres_char-device_de.tex b/kernel-devel/char-device/pres_char-device_de.tex deleted file mode 100644 index 6568af4..0000000 --- a/kernel-devel/char-device/pres_char-device_de.tex +++ /dev/null @@ -1,287 +0,0 @@ -\input{configpres} - -\title{Interaktion eines Character Device Treibers} -\maketitle - -\subsection{Character Devices} - -\subsubsection{Syscall Interface} -\begin{frame} -\frametitle{Syscall Interface} -\begin{center} -\includegraphics[width=5cm]{images/syscall.png} -\end{center} -\end{frame} - -\subsubsection{Struktur} -\begin{frame} -\frametitle{Interaktion eines Character Device Treibers} -\pause -\begin{itemize} -\item open -\pause -\item release -\pause -\item read -\pause -\item write -\pause -\item fsync -\pause -\item llseek -\pause -\item poll -\pause -\item mmap -\pause -\item ioctl -\pause -\item \dots -\end{itemize} -\end{frame} - -\begin{frame}[fragile] -\frametitle{open} -\pause -\begin{itemize} -\item Prototyp -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -int (*open) (struct inode *, struct file *); -\end{lstlisting} -\end{tiny} -\pause -\item Beschreibung -\pause -\begin{description} -\item [open:] Erste Operation auf einem Character-Device. Die Funktion muss -nicht implementiert werden. In diesem Fall schlägt ein Öffnen des Devices nie -fehl und es gibt keine Benachrichtigung des Treibers. -\end{description} -\pause -\item Datenfluss -\end{itemize} -\pause -\begin{center} -\includegraphics[width=5cm]{images/open.png} -\end{center} -\end{frame} - -\begin{frame}[fragile] -\frametitle{release} -\pause -\begin{itemize} -\item Prototyp -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -int (*release) (struct inode *, struct file *); -\end{lstlisting} -\end{tiny} -\pause -\item Beschreibung -\pause -\begin{description} -\item [release:] Letzte Operation auf einem Character-Device. Die Funktion muss -nicht implementiert werden. In diesem Fall schlägt ein Öffnen des Devices nie -fehl und es gibt keine Benachrichtigung des Treibers. -\end{description} -\pause -\item Datenfluss -\end{itemize} -\pause -\begin{center} -\includegraphics[width=5cm]{images/release.png} -\end{center} -\end{frame} - -\begin{frame}[fragile] -\frametitle{read} -\pause -\begin{itemize} -\item Prototyp -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -ssize_t (*read) (struct file *, char __user *, size_t, loff_t *); -\end{lstlisting} -\end{tiny} -\pause -\item Beschreibung -\pause -\begin{description} -\item [read:] Lesen von Daten des Devices. Die Daten werden mit Hilfe von -\emph{copy\_to\_user} in den Userspace kopiert. -\end{description} -\pause -\item Datenfluss -\end{itemize} -\pause -\begin{center} -\includegraphics[width=5cm]{images/read.png} -\end{center} -\end{frame} - -\begin{frame}[fragile] -\frametitle{write} -\pause -\begin{itemize} -\item Prototyp -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *); -\end{lstlisting} -\end{tiny} -\pause -\item Beschreibung -\pause -\begin{description} -\item [write:] Schreiben von Daten an das Devices. Die Daten werden mit Hilfe -von \emph{copy\_from\_user} aus dem Userspace kopiert. -\end{description} -\pause -\item Datenfluss -\end{itemize} -\pause -\begin{center} -\includegraphics[width=5cm]{images/write.png} -\end{center} -\end{frame} - -\begin{frame}[fragile] -\frametitle{fsync} -\pause -\begin{itemize} -\item Prototyp -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -int (*fsync) (struct file *, struct dentry *, int datasync); -\end{lstlisting} -\end{tiny} -\pause -\item Beschreibung -\pause -\begin{description} -\item [fsync:] Das Schreiben aller gecachten Daten eines Devices erzwingen. -\end{description} -\pause -\item Datenfluss -\end{itemize} -\pause -\begin{center} -\includegraphics[width=5cm]{images/fsync.png} -\end{center} -\end{frame} - -\begin{frame}[fragile] -\frametitle{llseek} -\pause -\begin{itemize} -\item Prototyp -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -loff_t (*llseek) (struct file *, loff_t, int); -\end{lstlisting} -\end{tiny} -\pause -\item Beschreibung -\pause -\begin{description} -\item [llseek:] Setzt die aktuelle Position für Lese- und Schreibzugriffe. -\end{description} -\pause -\item Datenfluss -\end{itemize} -\pause -\begin{center} -\includegraphics[width=5cm]{images/llseek.png} -\end{center} -\end{frame} - -\begin{frame}[fragile] -\frametitle{poll} -\pause -\begin{itemize} -\item Prototyp -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -unsigned int (*poll) (struct file *, struct poll_table_struct *); -\end{lstlisting} -\end{tiny} -\pause -\item Beschreibung -\pause -\begin{description} -\item [poll:] Implementiert poll, epoll und select. Wird poll nicht -implementiert, so muss nicht blockierendes Lesen und Schreiben möglich sein. -\end{description} -\pause -\item Datenfluss -\end{itemize} -\pause -\begin{center} -\includegraphics[width=5cm]{images/poll.png} -\end{center} -\end{frame} - -\begin{frame}[fragile] -\frametitle{mmap} -\pause -\begin{itemize} -\item Prototyp -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -int (*mmap) (struct file *, struct vm_area_struct *); -\end{lstlisting} -\end{tiny} -\pause -\item Beschreibung -\pause -\begin{description} -\item [mmap:] Legt ein Speichermapping des Devices im Kontext des -Userspace-Prozesses an. -\end{description} -\pause -\item Datenfluss -\end{itemize} -\pause -\begin{center} -\includegraphics[width=5cm]{images/mmap.png} -\end{center} -\end{frame} - -\begin{frame}[fragile] -\frametitle{ioctl} -\pause -\begin{itemize} -\item Prototyp -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -int (*ioctl) (struct inode *, struct file *, unsigned int, unsigned long); -\end{lstlisting} -\end{tiny} -\pause -\item Beschreibung -\pause -\begin{description} -\item [ioctl:] Implementiert Device-spezifische Kommandos. Sollte, da in den -meisten Fällen bessere, standartisierte Schnittstellen existieren, vermieden -werden. -\end{description} -\pause -\item Datenfluss -\end{itemize} -\pause -\begin{center} -\includegraphics[width=5cm]{images/ioctl.png} -\end{center} -\end{frame} - -\input{tailpres} diff --git a/kernel-devel/module-basics/Makefile b/kernel-devel/module-basics/Makefile index 82017d4..952b311 100644 --- a/kernel-devel/module-basics/Makefile +++ b/kernel-devel/module-basics/Makefile @@ -1,2 +1 @@ -obj-$(CONFIG_KERNEL_MODULES_BASIC) += pres_module-basics_de.pdf obj-$(CONFIG_KERNEL_MODULES_BASIC) += pres_module-basics_en.pdf diff --git a/kernel-devel/module-basics/pres_module-basics_de.tex b/kernel-devel/module-basics/pres_module-basics_de.tex deleted file mode 100644 index e303cca..0000000 --- a/kernel-devel/module-basics/pres_module-basics_de.tex +++ /dev/null @@ -1,523 +0,0 @@ -\input{configpres} - -\title{Treiber Modul Grundlagen} -\maketitle - -\subsection{Kernel Module} - -\subsubsection{Aufbau} -\begin{frame}[fragile] -\frametitle{Aufbau eines Treiber Moduls} -\pause -\begin{itemize} -\item Header -\pause -\begin{scriptsize} -\begin{lstlisting}[frame=trBL] -#include <linux/init.h> -#include <linux/module.h> -\end{lstlisting} -\end{scriptsize} -\pause -\item Init -\pause -\begin{scriptsize} -\begin{lstlisting}[frame=trBL] -static int __init vain_init(void) -{ - printk(KERN_INFO "vain_init: done\n"); - return 0; -} - -module_init(vain_init); -\end{lstlisting} -\end{scriptsize} -\end{itemize} -\end{frame} - -\begin{frame}[fragile] -\frametitle{Aufbau (fort.)} -\begin{itemize} -\item Exit -\pause -\begin{scriptsize} -\begin{lstlisting}[frame=trBL] -static void __exit vain_exit(void) -{ - printk(KERN_INFO "vain_exit: done\n"); -} - -module_exit(vain_exit); -\end{lstlisting} -\end{scriptsize} -\pause -\item Beschreibung -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -MODULE_AUTHOR("Benedikt Spranger <b.spranger@linutronix.de>"); -MODULE_DESCRIPTION("a more or less useless module"); -MODULE_LICENSE("GPL v2"); -MODULE_VERSION("0815"); -\end{lstlisting} -\end{tiny} -\end{itemize} -\end{frame} - -\subsubsection{Rumpf Treiber} -\begin{frame}[fragile] -\frametitle{Rumpf Treiber} -\begin{tiny} -\lstinputlisting{kernel-devel/module-basics/vain/vain.c} -\end{tiny} -\end{frame} - -\subsubsection{Makefile} -\begin{frame}[fragile] -\frametitle{Makefile} -\begin{scriptsize} -\lstinputlisting[language=make]{kernel-devel/module-basics/vain/Makefile} -\end{scriptsize} -\end{frame} - -\subsubsection{Bauen und Laden} -\begin{frame}[fragile] -\frametitle{Bauen, laden und entladen des Moduls} -\begin{itemize} -\item Bauen -\pause -\begin{tiny} -\begin{verbatim} -$ make -make -C /lib/modules/2.6.30/build M=/path/to/vain modules -make[1]: Entering directory `/usr/src/linux-2.6.30' - CC [M] /path/to/vain/vain.o - Building modules, stage 2. - MODPOST 1 modules - CC /path/to/vain/vain.mod.o - LD [M] /path/to/vain/vain.ko -make[1]: Leaving directory `/usr/src/linux-2.6.30' -$ -\end{verbatim} -\end{tiny} -\pause -\item Laden -\pause -\begin{tiny} -\begin{verbatim} -# insmod ./vain.ko -vain_init: done -# -\end{verbatim} -\end{tiny} -\item Entladen -\pause -\begin{tiny} -\begin{verbatim} -# rmmod vain -vain_exit: done -# -\end{verbatim} -\end{tiny} -\end{itemize} -\end{frame} - -\begin{frame} -\frametitle{Komplexere Module} -\pause -\begin{itemize} -\item Teil eines Bussystems -\pause -\begin{itemize} -\item PCI -\pause -\item Platform -\pause -\item USB -\pause -\item \dots -\pause -\end{itemize} -\item Teil eines Subsystems\footnote{nicht Teil des Vortrages} -\pause -\begin{itemize} -\item Character-Devices -\pause -\item Block-Devices -\pause -\item Network-Devices -\pause -\item \dots -\end{itemize} -\end{itemize} -\end{frame} - -\subsubsection{PCI Treiber Modul} -\begin{frame}[fragile] -\frametitle{Aufbau eines PCI Treiber Moduls} -\pause -\begin{itemize} -\item Header -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -#include <linux/init.h> -#include <linux/module.h> -|#include <linux/pci.h>| -\end{lstlisting} -\end{tiny} -\pause -\item Init -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -static int __init vain_pci_init(void) -{ - int err; - - |err = pci_register_driver(&vain_pci_driver);| - - if (!err) - printk(KERN_INFO "vain_pci_init: done\n"); - return err; -} - -module_init(vain_pci_init); -\end{lstlisting} -\end{tiny} -\end{itemize} -\end{frame} - -\begin{frame}[fragile] -\frametitle{Aufbau eines PCI Treiber Moduls (fort.)} -\begin{itemize} -\item Exit -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -static void __exit vain_pci_exit(void) -{ - |pci_unregister_driver(&vain_pci_driver);| - printk(KERN_INFO ``vain_pci_exit: done\n''); -} - -module_exit(vain_pci_exit); -\end{lstlisting} -\end{tiny} -\end{itemize} -\end{frame} - -\begin{frame}[fragile] -\frametitle{Aufbau eines PCI Treiber Moduls (fort.)} -\begin{itemize} -\item struct pci\_driver -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -|static struct pci_driver vain_pci_driver = { - .name = "vain_pci", - .id_table = vain_pci_ids, - .probe = vain_pci_probe, - .remove = __devexit_p(vain_pci_remove), -};| -\end{lstlisting} -\end{tiny} -\end{itemize} -\end{frame} - -\begin{frame}[fragile] -\frametitle{Aufbau eines PCI Treiber Moduls (fort.)} -\begin{itemize} -\item struct struct pci\_device\_id -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -|static struct pci_device_id vain_pci_ids[] __devinitdata = { - {PCI_VENDOR_ID_ILLEGAL_VENDOR, PCI_DEVICE_ID_ILLEGAL_VENDOR_DEVICE, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, - {0, } -};| -\end{lstlisting} -\end{tiny} -\end{itemize} -\end{frame} - -\begin{frame}[fragile] -\frametitle{Aufbau eines PCI Treiber Moduls (fort.)} -\begin{itemize} -\item probe -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -|static int __devinit vain_pci_probe(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - int ret; - - ret = pci_enable_device(pdev); - if (ret) - goto err_free; - - ret = pci_request_regions(pdev, "vain_pci"); - if (ret) - goto err_disable_device; - - info->base = pci_ioremap_bar(pdev, 0); - if (!info->base) { - ret = -ENODEV; - goto err_rel_regs; - } - - return 0;| -\end{lstlisting} -\dots -\end{tiny} -\end{itemize} -\end{frame} - -\begin{frame}[fragile] -\frametitle{Aufbau eines PCI Treiber Moduls (fort.)} -\begin{itemize} -\item remove -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -|static void __devexit vain_pci_remove(struct pci_dev *pdev) -{ - struct vain_pci_info *info = pci_get_drvdata(pdev); - - iounmap(info->base); - pci_release_regions(pdev); - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); - - kfree (info); -}| -\end{lstlisting} -\end{tiny} -\end{itemize} -\end{frame} - -\begin{frame} -\frametitle{PCI Treiber Hintergrund} -\includegraphics[width=7cm]{images/PCI_driver.png} -\end{frame} - -\begin{frame}[fragile] -\frametitle{PCI Rumpf Treiber} -\begin{tiny} -\lstinputlisting{kernel-devel/module-basics/vain_pci/vain_pci_1.c} -\end{tiny} -\end{frame} - -\begin{frame}[fragile] -\frametitle{PCI Rumpf Treiber (fort.)} -\begin{tiny} -\lstinputlisting{kernel-devel/module-basics/vain_pci/vain_pci_2.c} -\end{tiny} -\end{frame} - -\begin{frame}[fragile] -\frametitle{PCI Rumpf Treiber (fort.)} -\begin{tiny} -\lstinputlisting{kernel-devel/module-basics/vain_pci/vain_pci_3.c} -\end{tiny} -\end{frame} - -\begin{frame}[fragile] -\frametitle{PCI Rumpf Treiber (fort.)} -\begin{tiny} -\lstinputlisting{kernel-devel/module-basics/vain_pci/vain_pci_4.c} -\end{tiny} -\end{frame} - -\begin{frame}[fragile] -\frametitle{PCI Rumpf Treiber (fort.)} -\begin{tiny} -\lstinputlisting{kernel-devel/module-basics/vain_pci/vain_pci_5.c} -\end{tiny} -\end{frame} - -\begin{frame}[fragile] -\frametitle{PCI Rumpf Treiber (fort.)} -\begin{tiny} -\lstinputlisting{kernel-devel/module-basics/vain_pci/vain_pci_6.c} -\end{tiny} -\end{frame} - -\subsubsection{Platform Treiber Modul} -\begin{frame}[fragile] -\frametitle{Aufbau eines Platform Treiber Moduls} -\pause -\begin{itemize} -\item Header -\pause -\begin{tiny} -\begin{lstlisting}[frame=trBL] -#include <linux/init.h> -#include <linux/module.h> -|#include <linux/platform_device.h> - -#include <asm/io.h>| -\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} - -\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} - -\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} - -\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} - -\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} - -\begin{frame} -\frametitle{Platform Treiber Hintergrund} -\includegraphics[width=7cm]{images/plat_driver.png} -\end{frame} - -\begin{frame}[fragile] -\frametitle{Platform Rumpf Treiber} -\begin{tiny} -\lstinputlisting{kernel-devel/module-basics/vain_plat/vain_plat_1.c} -\end{tiny} -\end{frame} - -\begin{frame}[fragile] -\frametitle{Platform Rumpf Treiber (fort.)} -\begin{tiny} -\lstinputlisting{kernel-devel/module-basics/vain_plat/vain_plat_2.c} -\end{tiny} -\end{frame} - -\begin{frame}[fragile] -\frametitle{Platform Rumpf Treiber (fort.)} -\begin{tiny} -\lstinputlisting{kernel-devel/module-basics/vain_plat/vain_plat_3.c} -\end{tiny} -\end{frame} - -\begin{frame}[fragile] -\frametitle{Platform Rumpf Treiber (fort.)} -\begin{tiny} -\lstinputlisting{kernel-devel/module-basics/vain_plat/vain_plat_4.c} -\end{tiny} -\end{frame} - -\begin{frame}[fragile] -\frametitle{Platform Rumpf Treiber (fort.)} -\begin{tiny} -\lstinputlisting{kernel-devel/module-basics/vain_plat/vain_plat_5.c} -\end{tiny} -\end{frame} - -\input{tailpres} |