X-Git-Url: http://rtime.felk.cvut.cz/gitweb/lincan.git/blobdiff_plain/6250b3805fb7e368adf1e3f7ca39c8cc617bccff..50e9e47fc21191ea9ea758fea1e7f2bd5a275e98:/lincan/src/sysdep_lnx.c diff --git a/lincan/src/sysdep_lnx.c b/lincan/src/sysdep_lnx.c index 2161fee..03f4550 100644 --- a/lincan/src/sysdep_lnx.c +++ b/lincan/src/sysdep_lnx.c @@ -1,11 +1,36 @@ -/* sysdep_lnx.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 lincan-0.3 17 Jun 2004 - */ +/**************************************************************************/ +/* File: sysdep_lnx.c - Linux system dependant support routines */ +/* */ +/* LinCAN - (Not only) Linux CAN bus driver */ +/* Copyright (C) 2002-2009 DCE FEE CTU Prague */ +/* Copyright (C) 2002-2009 Pavel Pisa */ +/* Funded by OCERA and FRESCOR IST projects */ +/* Based on CAN driver code by Arnaud Westenberg */ +/* */ +/* LinCAN is free software; you can redistribute it and/or modify it */ +/* under terms of the GNU General Public License as published by the */ +/* Free Software Foundation; either version 2, or (at your option) any */ +/* later version. LinCAN is distributed in the hope that it will be */ +/* useful, but WITHOUT ANY WARRANTY; without even the implied warranty */ +/* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU */ +/* General Public License for more details. You should have received a */ +/* copy of the GNU General Public License along with LinCAN; see file */ +/* COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, */ +/* Cambridge, MA 02139, USA. */ +/* */ +/* To allow use of LinCAN in the compact embedded systems firmware */ +/* and RT-executives (RTEMS for example), main authors agree with next */ +/* special exception: */ +/* */ +/* Including LinCAN header files in a file, instantiating LinCAN generics */ +/* or templates, or linking other files with LinCAN objects to produce */ +/* an application image/executable, does not by itself cause the */ +/* resulting application image/executable to be covered by */ +/* the GNU General Public License. */ +/* This exception does not however invalidate any other reasons */ +/* why the executable file might be covered by the GNU Public License. */ +/* Publication of enhanced or derived LinCAN files is required although. */ +/**************************************************************************/ #include "../include/can.h" #include "../include/can_sysdep.h" @@ -20,6 +45,9 @@ * components/comm/contrib directory. */ #endif +#ifndef IRQF_SHARED +#define IRQF_SHARED SA_SHIRQ +#endif /*IRQF_SHARED*/ /** * can_checked_malloc - memory allocation with registering of requested blocks @@ -27,14 +55,14 @@ * * The function is used in the driver initialization phase to catch possible memory * leaks for future driver finalization or case, that driver initialization fail. - * + * * Return Value: pointer to the allocated memory or NULL in the case of fail */ void *can_checked_malloc(size_t size) { struct mem_addr *mem_new; void *address_p; - + address_p=kmalloc(size,GFP_KERNEL); if(address_p == NULL) { CANMSG("can_checked_malloc: out of the memory\n"); @@ -81,9 +109,9 @@ int can_checked_free(void *address_p) kfree(address_p); return 0; } - + CANMSG("can_checked_free: address %p not found on the mem list\n", address_p); - + kfree(address_p); return -1; } @@ -114,7 +142,7 @@ int can_del_mem_list(void) kfree(mem->address); kfree(mem); } - + return 0; } @@ -186,6 +214,37 @@ void can_release_mem_region(unsigned long start, unsigned long n) #endif } +#ifdef CAN_ENABLE_PCI_SUPPORT + +struct pci_dev *can_pci_get_next_untaken_device(unsigned int vendor, unsigned int device) +{ + struct pci_dev *pcidev = NULL; + + do { + pcidev = can_pci_get_device(vendor, device, pcidev); + if(pcidev == NULL) + return NULL; + } while(can_check_dev_taken(pcidev)); + + return pcidev; +} + +struct pci_dev *can_pci_get_next_untaken_subsyst(unsigned int vendor, unsigned int device, + unsigned int ss_vendor, unsigned int ss_device) +{ + struct pci_dev *pcidev = NULL; + + do { + pcidev = can_pci_get_subsys(vendor, device, ss_vendor, ss_device, pcidev); + if(pcidev == NULL) + return NULL; + } while(can_check_dev_taken(pcidev)); + + return pcidev; +} + +#endif /*CAN_ENABLE_PCI_SUPPORT*/ + #ifndef CAN_WITH_RTL /** @@ -195,7 +254,7 @@ void can_release_mem_region(unsigned long start, unsigned long n) * The CAN driver uses this pointer to store relationship of interrupt * to chip state structure - @struct canchip_t * @regs: system dependent value pointing to registers stored in exception frame - * + * * File: src/setup.c */ can_irqreturn_t can_default_irq_dispatch(CAN_IRQ_HANDLER_ARGS(irq_number, dev_id)) @@ -221,9 +280,9 @@ int can_chip_setup_irq(struct canchip_t *chip) return 0; if(chip->flags & CHIP_IRQ_CUSTOM) return 1; - + if ((chip->flags & CHIP_IRQ_VME) == 0) { - if (request_irq(chip->chip_irq,can_default_irq_dispatch,SA_SHIRQ,DEVICE_NAME,chip)) + if (request_irq(chip->chip_irq,can_default_irq_dispatch,IRQF_SHARED,DEVICE_NAME,chip)) return -1; else { DEBUGMSG("Registered interrupt %d\n",chip->chip_irq); @@ -235,7 +294,7 @@ int can_chip_setup_irq(struct canchip_t *chip) CANMSG("Bad irq parameter. (1 <= irq <= 255).\n"); return -EINVAL; } - + request_vmeirq(chip->chip_irq, can_default_irq_dispatch, chip); DEBUGMSG("Registered VME interrupt vector %d\n",chip->chip_irq); chip->flags |= CHIP_IRQ_SETUP; @@ -257,7 +316,7 @@ void can_chip_free_irq(struct canchip_t *chip) if ((chip->flags & CHIP_IRQ_VME) == 0) free_irq(chip->chip_irq, chip); - else { + else { #ifdef CAN_ENABLE_VME_SUPPORT free_vmeirq(chip->chip_irq); #endif