X-Git-Url: http://rtime.felk.cvut.cz/gitweb/lincan.git/blobdiff_plain/a4c9ead4b64bd4de307f375c2ff313a7a07a06e0..9c8ab08d7e8fca3916a7f91a3c001d151989137c:/lincan/src/unican_vme.c diff --git a/lincan/src/unican_vme.c b/lincan/src/unican_vme.c index e44a39d..cbf78ca 100644 --- a/lincan/src/unican_vme.c +++ b/lincan/src/unican_vme.c @@ -1,80 +1,39 @@ -/* unican_vme.c - * Linux CAN-bus device driver. - * Written for new CAN driver version 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 - */ - -/* This file is included in unican.c when CAN_ENABLE_VME_SUPPORT is +/**************************************************************************/ +/* File: unican_vme.c - Unicontrols VME board additional support */ +/* */ +/* 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. */ +/**************************************************************************/ +/* This file is included in unican.c if CAN_ENABLE_VME_SUPPORT is * set. */ -#include "ca91c042.h" - -#define UNICAN_VME_IRQ 1 - -/* Used to pass chip pointer to irq handler. This sould be done in VME - * bridge driver */ -#define VME_CHIPS_SIZE 8 -struct chip_t *vme_chips[VME_CHIPS_SIZE]; - -can_irqreturn_t unican_vme_irq_handler(int vmeirq, int vector, void *dev_id, struct pt_regs *regs) -{ -/* struct chip_t *chip = vme_chips[vector < VME_CHIPS_SIZE && vector >= 0 ? vector : 0]; */ - struct chip_t *chip = vme_chips[0]; - - DEBUGMSG("unican_vme_irq_handler: vmeirq=0x%08x vector=0x%08x\n", vmeirq, vector); - return unican_irq_handler(vmeirq, chip, regs); -} - -/** - * unican_program_irq - program interrupts - * @candev: Pointer to candevice/board structure - * - * Return value: The function returns zero on success or %-ENODEV on failure - * File: src/unican.c - */ -int unican_vme_program_irq(struct candevice_t *candev) -{ - struct chip_t *chip = candev->chip[0]; - - if (chip->chip_irq < 0 || chip->chip_irq >= VME_CHIPS_SIZE) { - CANMSG("Bad irq parameter. Maximum is %d.\n", VME_CHIPS_SIZE-1); - return -EINVAL; - } - -/* vme_chips[chip->chip_irq] = chip; */ - vme_chips[0] = chip; - - request_vmeirq(UNICAN_VME_IRQ, unican_vme_irq_handler); - enable_vmeirq(UNICAN_VME_IRQ); - - return 0; -} - -int unican_vme_request_io(struct candevice_t *candev) -{ - unican_request_io(candev); - - return 0; -} - -/** - * unican_vme_release_io - free reserved io memory range - * @candev: pointer to candevice/board which releases io - * - * Return Value: The function always returns zero - * File: src/unican.c - */ -int unican_vme_release_io(struct candevice_t *candev) -{ - disable_vmeirq(UNICAN_VME_IRQ); - free_vmeirq(UNICAN_VME_IRQ); - - unican_release_io(candev); - - return 0; -} /** * unican_vme_init_hw_data - Initialize hardware cards @@ -86,14 +45,13 @@ int unican_vme_release_io(struct candevice_t *candev) int unican_vme_reset(struct candevice_t *candev) { int ret; - struct chip_t *chip = candev->chip[0]; + struct canchip_t *chip = candev->chip[0]; ret = unican_reset(candev); /* Setup VME interrupt vector */ if (ret == 0) - unican_writew(0x1234/* chip->chip_irq */,chip->chip_base_addr+CL2_VME_INT_VECTOR); - + unican_writew(chip->chip_irq, chip->chip_base_addr+CL2_VME_INT_VECTOR); return ret; } @@ -108,12 +66,12 @@ int unican_vme_reset(struct candevice_t *candev) */ int unican_vme_init_chip_data(struct candevice_t *candev, int chipnr) { - struct chip_t *chip = candev->chip[chipnr]; + struct canchip_t *chip = candev->chip[chipnr]; unican_init_chip_data(candev, chipnr); chip->flags |= CHIP_IRQ_VME; - chip->chipspecops->irq_handler=unican_vme_irq_handler; + /*chip->chipspecops->irq_handler=unican_irq_handler;*/ return 0; } @@ -132,9 +90,8 @@ int unican_vme_register(struct hwspecops_t *hwspecops) hwspecops->init_hw_data = unican_vme_init_hw_data; hwspecops->init_chip_data = unican_vme_init_chip_data; - hwspecops->request_io = unican_vme_request_io; + hwspecops->request_io = unican_request_io; hwspecops->reset = unican_vme_reset; - hwspecops->program_irq = unican_vme_program_irq; - hwspecops->release_io = unican_vme_release_io; + hwspecops->release_io = unican_release_io; return 0; }