X-Git-Url: http://rtime.felk.cvut.cz/gitweb/lincan.git/blobdiff_plain/786c7d54e8d820e89997e507c29ea716c0d55fd9..b34a548a5dfd2f0b068fd835a4cd51680d851068:/lincan/src/main.c diff --git a/lincan/src/main.c b/lincan/src/main.c index f21e78f..c40310d 100644 --- a/lincan/src/main.c +++ b/lincan/src/main.c @@ -1,36 +1,28 @@ /* main.c * Linux CAN-bus device driver. * Written by Arnaud Westenberg email:arnaud@wanadoo.nl + * 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 0.7 6 Aug 2001 + * Version lincan-0.2 9 Jul 2003 */ #define EXPORT_SYMTAB #include -#if defined (CONFIG_MODVERSIONS) && !defined (MODVERSIONS) -#define MODVERSIONS -#endif #include -#if defined (MODVERSIONS) -#include -#endif - #include #include -#include #include #include #include #include #include -#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,3,0)) -#include -#else -#include +#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,50)) +#include #endif #if !defined (__GENKSYMS__) @@ -40,12 +32,18 @@ #endif #endif +/*#undef CONFIG_DEVFS_FS*/ + #ifdef CONFIG_DEVFS_FS +#include #include #endif +#include "../include/can.h" +#include "../include/can_sysdep.h" #include "../include/main.h" #include "../include/modparms.h" +#include "../include/devcommon.h" #include "../include/setup.h" #include "../include/proc.h" #include "../include/open.h" @@ -55,6 +53,8 @@ #include "../include/irq.h" #include "../include/ioctl.h" #include "../include/write.h" +#include "../include/finish.h" +#include "../include/fasync.h" #define EXPORT_SYMTAB @@ -68,8 +68,8 @@ int extended=0; MODULE_PARM(extended,"1i"); int pelican=0; MODULE_PARM(pelican,"1i"); -int baudrate=0; -MODULE_PARM(baudrate,"1i"); +int baudrate[MAX_TOT_CHIPS]; +MODULE_PARM(baudrate, "1-" __MODULE_STRING(MAX_TOT_CHIPS_STR)"i"); char *hw[MAX_HW_CARDS]={NULL,}; MODULE_PARM(hw, "1-" __MODULE_STRING(MAX_HW_CARDS)"s"); 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}; @@ -82,6 +82,8 @@ int extmask=0; MODULE_PARM(extmask, "1i"); int mo15mask=0; MODULE_PARM(mo15mask, "1i"); +int processlocal=0; +MODULE_PARM(processlocal, "1i"); /* Other module attributes */ #ifdef MODULE_SUPPORTED_DEVICE @@ -97,55 +99,48 @@ MODULE_DESCRIPTION("Universal Linux CAN-bus device driver"); /* Global structures, used to describe the installed hardware. */ struct canhardware_t canhardware; struct canhardware_t *hardware_p=&canhardware; -struct candevice_t *candevices_p[MAX_HW_CARDS]; struct chip_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)) devfs_handle_t devfs_handles[MAX_TOT_MSGOBJS]; #endif +#endif /* Pointers to dynamically allocated memory are maintained in a linked list * to ease memory deallocation. */ 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); 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; + canqueue_kern_initialize(); + if (init_hw_struct()) return -ENODEV; @@ -159,41 +154,39 @@ int init_module(void) return -ENODEV; } + #ifdef CAN_WITH_RTL + canqueue_rtl_initialize(); + #endif /*CAN_WITH_RTL*/ + for (i=0; inr_boards; i++) { - if (candevices_p[i]->hwspecops->request_io(candevices_p[i]->io_addr)) - goto memory_error; + candev=hardware_p->candevice[i]; + if (candev->hwspecops->request_io(candev)) + goto memory_error; + candev->flags|=CANDEV_IO_RESERVED; } for (i=0; inr_boards; i++) { - if (candevices_p[i]->hwspecops->reset(i)) + candev=hardware_p->candevice[i]; + if (candev->hwspecops->reset(candev)) 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 (!strcmp(chips_p[i]->chip_type,"i82527")) { - if (request_irq(chips_p[i]->chip_irq,i82527_irq_handler,SA_SHIRQ,DEVICE_NAME,chips_p[i])) + for (i=0; inr_boards; i++) { + candev=hardware_p->candevice[i]; + for(j=0; jnr_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; - else - DEBUGMSG("Registered interrupt %d\n",chips_p[i]->chip_irq); + } } - if (!strcmp(chips_p[i]->chip_type,"sja1000p") || - !strcmp(chips_p[i]->chip_type,"sja1000")) { - 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; inr_boards; i++) { - if (candevices_p[i]->flags & PROGRAMMABLE_IRQ) - if (candevices_p[i]->hwspecops->program_irq(i)) + + if (candev->flags & CANDEV_PROGRAMMABLE_IRQ) + if (candev->hwspecops->program_irq(candev)) goto interrupt_error; } @@ -209,11 +202,15 @@ int init_module(void) for(i=0;iminor; + #if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,50)) sprintf (dev_name, "can%d", dev_minor); devfs_handles[i]=devfs_register(NULL, dev_name, DEVFS_FL_DEFAULT, major, dev_minor, S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP, &can_fops, (void*)objects_p[i]); + #else + devfs_mk_cdev(MKDEV(major, dev_minor), S_IFCHR | S_IRUGO | S_IWUGO, "can%d", dev_minor); + #endif } } #endif @@ -233,16 +230,17 @@ int init_module(void) goto memory_error; memory_error: ; - for (i=0; inr_boards; i++) - candevices_p[i]->hwspecops->release_io(candevices_p[i]->io_addr); - goto register_error; + canhardware_done(hardware_p); + + #ifdef CAN_WITH_RTL + 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; } @@ -258,20 +256,26 @@ void cleanup_module(void) #ifdef CONFIG_DEVFS_FS for(i=0;iminor; + if(minor>=0) + devfs_remove("can%d", dev_minor); + #endif } #endif - i=0; - while ( (chips_p[i] != NULL) & (i < MAX_TOT_CHIPS) ) { - free_irq(chips_p[i]->chip_irq, chips_p[i]); - i++; - } - for (i=0; inr_boards; i++) - candevices_p[i]->hwspecops->release_io(candevices_p[i]->io_addr); + canhardware_done(hardware_p); + + #ifdef CAN_WITH_RTL + 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);