X-Git-Url: http://rtime.felk.cvut.cz/gitweb/lincan.git/blobdiff_plain/fb2dd0f20bd6264291dccb5e97609a23cae2fd1a..7eca1ac39aa9f2a65ba0607d55f7155f5a56ad15:/lincan/src/main.c

diff --git a/lincan/src/main.c b/lincan/src/main.c
index 38a0ec0..bb6abbf 100644
--- a/lincan/src/main.c
+++ b/lincan/src/main.c
@@ -4,10 +4,12 @@
  * 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>
 
@@ -61,36 +63,53 @@
 #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
@@ -102,11 +121,14 @@ MODULE_LICENSE("GPL");
 #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 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))
@@ -155,11 +177,12 @@ int init_module(void)
 {
 	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())
@@ -176,6 +199,7 @@ int init_module(void)
 	}
 
 	#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) {
@@ -187,7 +211,7 @@ int init_module(void)
 	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;
 	}
 
@@ -223,7 +247,9 @@ int init_module(void)
 
 #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;
@@ -253,6 +279,11 @@ int init_module(void)
 		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: ;