author | Florian Pose <fp@igh-essen.com> |
Fri, 16 Dec 2005 09:44:54 +0000 | |
branch | kernel2.6 |
changeset 32 | 7d9809fbf7b9 |
parent 27 | d75ef6b46e33 |
child 33 | f4171b8aadf8 |
permissions | -rw-r--r-- |
27
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EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
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1 |
/****************************************************************************** |
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EtherCAT-Master in eigenes Modul ausgelagert.
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parents:
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* |
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EtherCAT-Master in eigenes Modul ausgelagert.
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parents:
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3 |
* ec_module.c |
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EtherCAT-Master in eigenes Modul ausgelagert.
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parents:
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* |
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EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
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5 |
* EtherCAT-Master-Treiber |
d75ef6b46e33
EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
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6 |
* |
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EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
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7 |
* Autoren: Wilhelm Hagemeister, Florian Pose |
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EtherCAT-Master in eigenes Modul ausgelagert.
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parents:
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* |
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* $Id$ |
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EtherCAT-Master in eigenes Modul ausgelagert.
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parents:
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* |
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EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
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* (C) Copyright IgH 2005 |
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EtherCAT-Master in eigenes Modul ausgelagert.
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* Ingenieurgemeinschaft IgH |
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EtherCAT-Master in eigenes Modul ausgelagert.
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* Heinz-Bäcker Str. 34 |
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EtherCAT-Master in eigenes Modul ausgelagert.
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* D-45356 Essen |
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EtherCAT-Master in eigenes Modul ausgelagert.
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* Tel.: +49 201/61 99 31 |
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EtherCAT-Master in eigenes Modul ausgelagert.
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* Fax.: +49 201/61 98 36 |
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EtherCAT-Master in eigenes Modul ausgelagert.
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* E-mail: sp@igh-essen.com |
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EtherCAT-Master in eigenes Modul ausgelagert.
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parents:
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* |
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******************************************************************************/ |
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|
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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|
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#include "ec_module.h" |
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|
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/******************************************************************************/ |
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|
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#define SUBVERSION_ID "$Id$" |
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|
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int ecat_master_count = 1; |
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EtherCAT_master_t *ecat_masters = NULL; |
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|
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/******************************************************************************/ |
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|
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MODULE_AUTHOR ("Wilhelm Hagemeister <hm@igh-essen.com>, Florian Pose <fp@igh-essen.com>"); |
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MODULE_DESCRIPTION ("EtherCAT master driver module"); |
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MODULE_LICENSE("GPL"); |
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MODULE_VERSION(SUBVERSION_ID); |
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|
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module_param(ecat_master_count, int, 1); |
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MODULE_PARM_DESC(ecat_master_count, "Number of EtherCAT master to initialize."); |
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|
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module_init(ecat_init_module); |
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EtherCAT-Master in eigenes Modul ausgelagert.
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module_exit(ecat_cleanup_module); |
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|
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EXPORT_SYMBOL(EtherCAT_master); |
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|
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/******************************************************************************/ |
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|
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/** |
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Init-Funktion des EtherCAT-Master-Treibermodules |
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|
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Initialisiert soviele Master, wie im Parameter ecat_master_count |
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angegeben wurde (Default ist 1). |
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|
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@returns 0, wenn alles o.k., -1 bei ungueltiger Anzahl Master |
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oder zu wenig Speicher. |
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*/ |
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|
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int __init ecat_init_module(void) |
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{ |
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unsigned int i; |
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|
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printk(KERN_ERR "EtherCAT: Master driver %s\n", SUBVERSION_ID); |
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|
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if (ecat_master_count < 1) |
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{ |
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printk(KERN_ERR "EtherCAT: Error - Illegal ecat_master_count: %i\n", |
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ecat_master_count); |
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return -1; |
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} |
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|
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printk(KERN_ERR "EtherCAT: Initializing %i EtherCAT master(s)...\n", |
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ecat_master_count); |
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|
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if ((ecat_masters = (EtherCAT_master_t *) kmalloc(sizeof(EtherCAT_master_t) |
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* ecat_master_count, |
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GFP_KERNEL)) == NULL) |
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80 |
{ |
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printk(KERN_ERR "EtherCAT: Could not allocate memory for EtherCAT master(s)!\n"); |
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return -1; |
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83 |
} |
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84 |
|
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for (i = 0; i < ecat_master_count; i++) |
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86 |
{ |
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87 |
EtherCAT_master_init(&ecat_masters[i]); |
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88 |
} |
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89 |
|
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printk(KERN_ERR "EtherCAT: Master driver initialized.\n"); |
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91 |
|
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92 |
return 0; |
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93 |
} |
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94 |
|
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95 |
/******************************************************************************/ |
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96 |
|
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97 |
/** |
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98 |
Cleanup-Funktion des EtherCAT-Master-Treibermoduls |
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99 |
|
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100 |
Entfernt alle Master-Instanzen. |
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|
101 |
*/ |
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102 |
|
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103 |
void __exit ecat_cleanup_module(void) |
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104 |
{ |
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105 |
unsigned int i; |
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106 |
|
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107 |
printk(KERN_ERR "EtherCAT: Cleaning up master driver...\n"); |
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108 |
|
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109 |
if (ecat_masters) |
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110 |
{ |
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111 |
for (i = 0; i < ecat_master_count; i++) |
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112 |
{ |
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113 |
EtherCAT_master_clear(&ecat_masters[i]); |
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|
114 |
} |
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115 |
|
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kfree(ecat_masters); |
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} |
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|
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printk(KERN_ERR "EtherCAT: Master driver cleaned up.\n"); |
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} |
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|
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/******************************************************************************/ |
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|
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/** |
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Gibt einen Zeiger auf einen bestimmten EtherCAT-Master zurueck. |
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|
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@param index Index des gewuenschten Masters |
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@returns Zeiger auf EtherCAT-Master oder NULL, wenn Parameter ungueltig. |
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*/ |
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|
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EtherCAT_master_t *EtherCAT_master(int index) |
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{ |
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if (index < 0 || index >= ecat_master_count) |
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{ |
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printk(KERN_ERR "EtherCAT: Master %i does not exist!\n", index); |
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return NULL; |
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} |
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|
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return &ecat_masters[index]; |
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} |
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|
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/******************************************************************************/ |