* Rewritten for new CAN queues by Pavel Pisa - OCERA team member
* email:pisa@cmp.felk.cvut.cz
* This software is released under the GPL-License.
- * Version lincan-0.2 9 Jul 2003
+ * Version lincan-0.3 17 Jun 2004
*/
+#ifndef EXPORT_SYMTAB
#define EXPORT_SYMTAB
+#endif
#include <linux/autoconf.h>
#include "../include/can_iortl.h"
#endif /*CAN_WITH_RTL*/
-#define EXPORT_SYMTAB
-
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");
+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
/* Global structures, used to describe the installed hardware. */
struct canhardware_t canhardware;
struct canhardware_t *hardware_p=&canhardware;
-struct chip_t *chips_p[MAX_TOT_CHIPS];
+struct canchip_t *chips_p[MAX_TOT_CHIPS];
struct msgobj_t *objects_p[MAX_TOT_MSGOBJS];
#ifdef CONFIG_DEVFS_FS
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,60))
{
int res=0,i=0, j;
struct candevice_t *candev;
- struct chip_t *chip;
+ struct canchip_t *chip;
if (parse_mod_parms())
return -EINVAL;
+ can_spin_lock_init(&canuser_manipulation_lock);
canqueue_kern_initialize();
if (init_hw_struct())
res=register_chrdev(major,DEVICE_NAME, &can_fops);
if (res<0) {
CANMSG("Error registering driver.\n");
- return -ENODEV;
+ goto register_error;
}
#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) {
for (i=0; i<hardware_p->nr_boards; i++) {
candev=hardware_p->candevice[i];
if (candev->hwspecops->request_io(candev))
- goto memory_error;
+ goto request_io_error;
candev->flags|=CANDEV_IO_RESERVED;
}
for(j=0; j<candev->nr_all_chips; j++) {
if((chip=candev->chip[j])==NULL)
continue;
+
+ if(chip->chipspecops->attach_to_chip(chip)<0) {
+ CANMSG("Initial attach to the chip HW failed\n");
+ goto interrupt_error;
+ }
+
+ chip->flags |= CHIP_ATTACHED;
+
if(can_chip_setup_irq(chip)<0) {
- CANMSG("IRQ setup failed\n");
+ CANMSG("Error to setup chip IRQ\n");
goto interrupt_error;
}
}
-
+
if (candev->flags & CANDEV_PROGRAMMABLE_IRQ)
- if (candev->hwspecops->program_irq(candev))
+ if (candev->hwspecops->program_irq(candev)){
+ CANMSG("Error to program board interrupt\n");
goto interrupt_error;
+ }
}
#ifdef CONFIG_PROC_FS
#ifdef CONFIG_DEVFS_FS
{
+ #if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,50))
char dev_name[32];
+ #endif
int dev_minor;
for(i=0;i<MAX_TOT_MSGOBJS;i++) {
if(!objects_p[i]) continue;
#endif
interrupt_error: ;
- CANMSG("Error registering interrupt line.\n");
goto memory_error;
reset_error: ;
+ CANMSG("Error resetting device.\n");
+ goto memory_error;
+
+ request_io_error: ;
+ CANMSG("Error to request IO resources for device.\n");
goto memory_error;
memory_error: ;
CANMSG("Error unloading CAN driver, error: %d\n",res);
else
CANMSG("No CAN devices or driver setup error.\n");
- return -ENODEV;
+ register_error:
+ if ( can_del_mem_list() )
+ CANMSG("Error deallocating memory\n");
+
+ return -ENODEV;
}
void cleanup_module(void)
projects / lincan.git / blobdiff