* Version lincan-0.2 9 Jul 2003
*/
+#ifndef EXPORT_SYMTAB
#define EXPORT_SYMTAB
+#endif
#include <linux/autoconf.h>
#include <linux/wrapper.h>
#endif
-#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,3,0))
-#include <asm/spinlock.h>
-#else
-#include <linux/spinlock.h>
-#endif
-
#if !defined (__GENKSYMS__)
#if (defined (MODVERSIONS) && !defined(NOVER))
#include <linux/modversions.h>
#include <linux/miscdevice.h>
#endif
+#include "../include/can.h"
+#include "../include/can_sysdep.h"
#include "../include/main.h"
#include "../include/modparms.h"
#include "../include/devcommon.h"
#include "../include/irq.h"
#include "../include/ioctl.h"
#include "../include/write.h"
+#include "../include/finish.h"
+#include "../include/fasync.h"
-#define EXPORT_SYMTAB
+#ifdef CAN_WITH_RTL
+#include <rtl_posixio.h>
+#include "../include/can_iortl.h"
+#endif /*CAN_WITH_RTL*/
+
+can_spinlock_t canuser_manipulation_lock;
/* Module parameters, some must be supplied at module loading time */
int major=CAN_MAJOR;
MODULE_PARM(major,"1i");
+MODULE_PARM_DESC(major,"can be used to change default major [" __MODULE_STRING(CAN_MAJOR) "]");
int minor[MAX_TOT_CHIPS]={-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1};
/*MODULE_PARM(minor, "1-" __MODULE_STRING(MAX_TOT_CHIPS)"i");*/
MODULE_PARM(minor, "1-" __MODULE_STRING(MAX_TOT_CHIPS_STR)"i");
+MODULE_PARM_DESC(minor,"can be used to change default starting minor for each channel");
int extended=0;
MODULE_PARM(extended,"1i");
+MODULE_PARM_DESC(extended,"enables automatic switching to extended format if ID>2047,"
+ " selects extended frames reception for i82527");
int pelican=0;
MODULE_PARM(pelican,"1i");
-int baudrate=0;
-MODULE_PARM(baudrate,"1i");
+MODULE_PARM_DESC(pelican,"unused parameter, PeliCAN used by default for sja1000p chips");
+int baudrate[MAX_TOT_CHIPS];
+MODULE_PARM(baudrate, "1-" __MODULE_STRING(MAX_TOT_CHIPS_STR)"i");
+MODULE_PARM_DESC(baudrate,"baudrate for each channel in step of 1kHz");
char *hw[MAX_HW_CARDS]={NULL,};
MODULE_PARM(hw, "1-" __MODULE_STRING(MAX_HW_CARDS)"s");
+MODULE_PARM_DESC(hw,"list of boards types to initialize - virtual,pip5,...");
int irq[MAX_IRQ]={-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1};
MODULE_PARM(irq, "1-" __MODULE_STRING(MAX_IRQ)"i");
+MODULE_PARM_DESC(irq,"list of iterrupt signal numbers, most ISA has one per chip, no value for PCI or virtual");
unsigned long io[MAX_HW_CARDS]={-1,-1,-1,-1,-1,-1,-1,-1};
MODULE_PARM(io, "1-" __MODULE_STRING(MAX_HW_CARDS)"i");
+MODULE_PARM_DESC(io,"IO address for each board, use 0 for PCI or virtual");
int stdmask=0;
MODULE_PARM(stdmask, "1i");
+MODULE_PARM_DESC(stdmask,"default standard mask for i82527 chips");
int extmask=0;
MODULE_PARM(extmask, "1i");
+MODULE_PARM_DESC(extmask,"default extended mask for i82527 chips");
int mo15mask=0;
MODULE_PARM(mo15mask, "1i");
+MODULE_PARM_DESC(mo15mask,"mask for communication object 15 of i82527 chips");
int processlocal=0;
MODULE_PARM(processlocal, "1i");
+MODULE_PARM_DESC(processlocal,"select postprocessing/loopback of transmitted messages - "
+ "0 .. disabled, 1 .. can be enabled by FIFO filter, 2 .. enabled by default");
+#ifdef CAN_WITH_RTL
+int can_rtl_priority=-1;
+MODULE_PARM(can_rtl_priority, "1i");
+MODULE_PARM_DESC(can_rtl_priority,"select priority of chip worker thread");
+#endif /*CAN_WITH_RTL*/
/* Other module attributes */
#ifdef MODULE_SUPPORTED_DEVICE
#ifdef MODULE_DESCRIPTION
MODULE_DESCRIPTION("Universal Linux CAN-bus device driver");
#endif
+#ifdef MODULE_AUTHOR
+MODULE_AUTHOR("Pavel Pisa <pisa@cmp.felk.cvut.cz>, Arnaud Westenberg");
+#endif
/* Global structures, used to describe the installed hardware. */
struct canhardware_t canhardware;
*/
struct mem_addr *mem_head=NULL;
-#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,3,0))
-struct file_operations can_fops=
-{
- NULL, /* llseek */
- read: can_read,
- write: can_write,
- NULL, /* readdir */
- poll: can_poll,
- ioctl: can_ioctl,
- NULL, /* mmap */
- open: can_open,
- NULL, /* flush */
- release: can_close,
- NULL, /* fsync */
-};
-#else
struct file_operations can_fops=
{
+ #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0))
owner: THIS_MODULE,
+ #endif
read: can_read,
write: can_write,
poll: can_poll,
ioctl: can_ioctl,
open: can_open,
release: can_close,
+ #ifdef CAN_ENABLE_KERN_FASYNC
+ fasync: can_fasync
+ #endif /*CAN_ENABLE_KERN_FASYNC*/
};
-#endif
EXPORT_SYMBOL(can_fops);
+
+#ifdef CAN_WITH_RTL
+struct rtl_file_operations can_fops_rtl = {
+ llseek: NULL,
+ read: can_read_rtl_posix,
+ write: can_write_rtl_posix,
+ ioctl: can_ioctl_rtl_posix,
+ mmap: NULL,
+ open: can_open_rtl_posix,
+ release: can_release_rtl_posix
+};
+#endif /*CAN_WITH_RTL*/
+
+
int init_module(void)
{
- int res=0,i=0;
+ int res=0,i=0, j;
struct candevice_t *candev;
+ struct chip_t *chip;
if (parse_mod_parms())
return -EINVAL;
+ can_spin_lock_init(&canuser_manipulation_lock);
+ canqueue_kern_initialize();
+
if (init_hw_struct())
return -ENODEV;
return -ENODEV;
}
+ #ifdef CAN_WITH_RTL
+ can_spin_lock_init(&can_irq_manipulation_lock);
+ canqueue_rtl_initialize();
+ res=rtl_register_rtldev(major,DEVICE_NAME,&can_fops_rtl);
+ if (res<0) {
+ CANMSG("Error registering RT-Linux major number.\n");
+ goto rtldev_error;
+ }
+ #endif /*CAN_WITH_RTL*/
+
for (i=0; i<hardware_p->nr_boards; i++) {
candev=hardware_p->candevice[i];
if (candev->hwspecops->request_io(candev))
goto memory_error;
+ candev->flags|=CANDEV_IO_RESERVED;
}
for (i=0; i<hardware_p->nr_boards; i++) {
goto reset_error;
}
- spin_lock_init(&hardware_p->rtr_lock);
+ can_spin_lock_init(&hardware_p->rtr_lock);
hardware_p->rtr_queue=NULL;
- i=0;
- while ( (chips_p[i] != NULL) && (i < MAX_TOT_CHIPS) ) {
- if (chips_p[i]->chipspecops->irq_handler) {
- if (request_irq(chips_p[i]->chip_irq,chips_p[i]->chipspecops->irq_handler,SA_SHIRQ,DEVICE_NAME,chips_p[i]))
- goto interrupt_error;
- else
- DEBUGMSG("Registered interrupt %d\n",chips_p[i]->chip_irq);
- }
- i++;
- }
-
for (i=0; i<hardware_p->nr_boards; i++) {
candev=hardware_p->candevice[i];
- if (candev->flags & PROGRAMMABLE_IRQ)
+ for(j=0; j<candev->nr_all_chips; j++) {
+ if((chip=candev->chip[j])==NULL)
+ continue;
+ if(can_chip_setup_irq(chip)<0) {
+ CANMSG("IRQ setup failed\n");
+ goto interrupt_error;
+ }
+ }
+
+ if (candev->flags & CANDEV_PROGRAMMABLE_IRQ)
if (candev->hwspecops->program_irq(candev))
goto interrupt_error;
}
goto memory_error;
memory_error: ;
- for (i=0; i<hardware_p->nr_boards; i++) {
- candev=hardware_p->candevice[i];
- candev->hwspecops->release_io(candev);
- }
- goto register_error;
+ canhardware_done(hardware_p);
+
+ #ifdef CAN_WITH_RTL
+ rtl_unregister_rtldev(major,DEVICE_NAME);
+ rtldev_error:
+ canqueue_rtl_done();
+ #endif /*CAN_WITH_RTL*/
- register_error: ;
res=unregister_chrdev(major,DEVICE_NAME);
if (res<0)
CANMSG("Error unloading CAN driver, error: %d\n",res);
else
- CANMSG("Successfully unloaded CAN driver.\n");
+ CANMSG("No CAN devices or driver setup error.\n");
return -ENODEV;
}
void cleanup_module(void)
{
int res=0,i=0;
- struct candevice_t *candev;
#ifdef CONFIG_PROC_FS
if (can_delete_procdir())
#endif
}
#endif
- i=0;
- while ( (chips_p[i] != NULL) & (i < MAX_TOT_CHIPS) ) {
- if(chips_p[i]->chipspecops->irq_handler)
- free_irq(chips_p[i]->chip_irq, chips_p[i]);
- i++;
- }
- for (i=0; i<hardware_p->nr_boards; i++){
- candev=hardware_p->candevice[i];
- candev->hwspecops->release_io(candev);
- }
+ canhardware_done(hardware_p);
+
+ #ifdef CAN_WITH_RTL
+ rtl_unregister_rtldev(major,DEVICE_NAME);
+ canqueue_rtl_done();
+ #endif /*CAN_WITH_RTL*/
- if ( del_mem_list() )
+ if ( can_del_mem_list() )
CANMSG("Error deallocating memory\n");
res=unregister_chrdev(major,DEVICE_NAME);
projects / lincan.git / blobdiff