-/* aim104.c
- * Linux CAN-bus device driver.
- * Written by Arnaud Westenberg email:arnaud@wanadoo.nl
- * This software is released under the GPL-License.
- * Version 0.7 6 Aug 2001
- */
-
-#include <linux/autoconf.h>
-#if defined (CONFIG_MODVERSIONS) && !defined (MODVERSIONS)
-#define MODVERSIONS
-#endif
-
-#if defined (MODVERSIONS)
-#include <linux/modversions.h>
-#endif
-
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <asm/errno.h>
-#include <asm/io.h>
+/**************************************************************************/
+/* File: aim104.c - AIM104CAN PC/104 card by Arcom Control Systems */
+/* */
+/* LinCAN - (Not only) Linux CAN bus driver */
+/* Copyright (C) 2002-2009 DCE FEE CTU Prague <http://dce.felk.cvut.cz> */
+/* Copyright (C) 2002-2009 Pavel Pisa <pisa@cmp.felk.cvut.cz> */
+/* Funded by OCERA and FRESCOR IST projects */
+/* Based on CAN driver code by Arnaud Westenberg <arnaud@wanadoo.nl> */
+/* */
+/* 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"
#include "../include/main.h"
#include "../include/aim104.h"
#include "../include/sja1000.h"
#define IO_RANGE 0x20
/**
- * template_request_io: - reserve io memory
- * @io_addr: The reserved memory starts at @io_addr, wich is the module
- * parameter @io.
+ * template_request_io: - reserve io or memory range for can board
+ * @candev: pointer to candevice/board which asks for io. Field @io_addr
+ * of @candev is used in most cases to define start of the range
*
* The function template_request_io() is used to reserve the io-memory. If your
* hardware uses a dedicated memory range as hardware control registers you
- * will have to add the code to reserve this memory as well.
+ * will have to add the code to reserve this memory as well.
* %IO_RANGE is the io-memory range that gets reserved, please adjust according
* your hardware. Example: #define IO_RANGE 0x100 for i82527 chips or
* #define IO_RANGE 0x20 for sja1000 chips in basic CAN mode.
* Return Value: The function returns zero on success or %-ENODEV on failure
* File: src/template.c
*/
-int aim104_request_io(unsigned long io_addr)
+int aim104_request_io(struct candevice_t *candev)
{
- if (check_region(io_addr,IO_RANGE)) {
- CANMSG("Unable to open port: 0x%lx\n",io_addr);
+ if (!can_request_io_region(candev->io_addr,IO_RANGE,DEVICE_NAME)) {
+ CANMSG("Unable to open port: 0x%lx\n",candev->io_addr);
return -ENODEV;
- }
- else {
- request_region(io_addr,IO_RANGE,DEVICE_NAME);
- DEBUGMSG("Registered IO-memory: 0x%lx - 0x%lx\n", io_addr, io_addr + IO_RANGE - 1);
+ } else {
+ DEBUGMSG("Registered IO-memory: 0x%lx - 0x%lx\n", candev->io_addr, candev->io_addr + IO_RANGE - 1);
}
return 0;
}
/**
- * template_release_io - free reserved io-memory
- * @io_addr: Start of the memory range to be released.
+ * template_elease_io - free reserved io memory range
+ * @candev: pointer to candevice/board which releases io
*
* The function template_release_io() is used to free reserved io-memory.
* In case you have reserved more io memory, don't forget to free it here.
* Return Value: The function always returns zero
* File: src/template.c
*/
-int aim104_release_io(unsigned long io_addr)
+int aim104_release_io(struct candevice_t *candev)
{
- release_region(io_addr,IO_RANGE);
+ can_release_io_region(candev->io_addr,IO_RANGE);
return 0;
}
/**
* template_reset - hardware reset routine
- * @card: Number of the hardware card.
+ * @candev: Pointer to candevice/board structure
*
- * The function template_reset() is used to give a hardware reset. This is
- * rather hardware specific so I haven't included example code. Don't forget to
+ * The function template_reset() is used to give a hardware reset. This is
+ * rather hardware specific so I haven't included example code. Don't forget to
* check the reset status of the chip before returning.
* Return Value: The function returns zero on success or %-ENODEV on failure
* File: src/template.c
*/
-int aim104_reset(int card)
+int aim104_reset(struct candevice_t *candev)
{
int i=0;
DEBUGMSG("Resetting aim104 hardware ...\n");
- aim104_write_register(0x00, candevices_p[card]->io_addr + SJACR);
-
+ aim104_write_register(0x00, candev->io_addr + SJACR);
+
/* Check hardware reset status chip 0 */
i=0;
- while ( (aim104_read_register(candevices_p[card]->io_addr + SJACR)
- & CR_RR) && (i<=15) ) {
- udelay(20000);
+ while ( (aim104_read_register(candev->io_addr + SJACR)
+ & sjaCR_RR) && (i<=15) ) {
+ mdelay(20);
i++;
}
if (i>=15) {
#define NR_SJA1000 1
/**
- * template_init_hw_data - Initialze hardware cards
- * @card: Number of the hardware card.
+ * template_init_hw_data - Initialize hardware cards
+ * @candev: Pointer to candevice/board structure
*
* The function template_init_hw_data() is used to initialize the hardware
* structure containing information about the installed CAN-board.
* %RESET_ADDR represents the io-address of the hardware reset register.
* %NR_82527 represents the number of intel 82527 chips on the board.
* %NR_SJA1000 represents the number of philips sja1000 chips on the board.
- * The flags entry can currently only be %PROGRAMMABLE_IRQ to indicate that
+ * The flags entry can currently only be %CANDEV_PROGRAMMABLE_IRQ to indicate that
* the hardware uses programmable interrupts.
* Return Value: The function always returns zero
* File: src/template.c
*/
-int aim104_init_hw_data(int card)
+int aim104_init_hw_data(struct candevice_t *candev)
{
- candevices_p[card]->res_addr=RESET_ADDR;
- candevices_p[card]->nr_82527_chips=0;
- candevices_p[card]->nr_sja1000_chips=1;
- candevices_p[card]->flags |= ~PROGRAMMABLE_IRQ;
+ candev->res_addr=RESET_ADDR;
+ candev->nr_82527_chips=0;
+ candev->nr_sja1000_chips=1;
+ candev->nr_all_chips=1;
+ candev->flags &= ~CANDEV_PROGRAMMABLE_IRQ;
return 0;
}
-#define CHIP_TYPE "sja1000"
/**
* template_init_chip_data - Initialize chips
- * @card: Number of the hardware card
+ * @candev: Pointer to candevice/board structure
* @chipnr: Number of the CAN chip on the hardware card
*
* The function template_init_chip_data() is used to initialize the hardware
* The @clock entry holds the chip clock value in Hz.
* The entry @sja_cdr_reg holds hardware specific options for the Clock Divider
* register. Options defined in the %sja1000.h file:
- * %CDR_CLKOUT_MASK, %CDR_CLK_OFF, %CDR_RXINPEN, %CDR_CBP, %CDR_PELICAN
+ * %sjaCDR_CLKOUT_MASK, %sjaCDR_CLK_OFF, %sjaCDR_RXINPEN, %sjaCDR_CBP, %sjaCDR_PELICAN
* The entry @sja_ocr_reg holds hardware specific options for the Output Control
* register. Options defined in the %sja1000.h file:
- * %OCR_MODE_BIPHASE, %OCR_MODE_TEST, %OCR_MODE_NORMAL, %OCR_MODE_CLOCK,
- * %OCR_TX0_LH, %OCR_TX1_ZZ.
+ * %sjaOCR_MODE_BIPHASE, %sjaOCR_MODE_TEST, %sjaOCR_MODE_NORMAL, %sjaOCR_MODE_CLOCK,
+ * %sjaOCR_TX0_LH, %sjaOCR_TX1_ZZ.
* The entry @int_clk_reg holds hardware specific options for the Clock Out
* register. Options defined in the %i82527.h file:
* %iCLK_CD0, %iCLK_CD1, %iCLK_CD2, %iCLK_CD3, %iCLK_SL0, %iCLK_SL1.
- * The entry @int_bus_reg holds hardware specific options for the Bus
+ * The entry @int_bus_reg holds hardware specific options for the Bus
* Configuration register. Options defined in the %i82527.h file:
* %iBUS_DR0, %iBUS_DR1, %iBUS_DT1, %iBUS_POL, %iBUS_CBY.
* Return Value: The function always returns zero
* File: src/template.c
*/
-int aim104_init_chip_data(int card, int chipnr)
+int aim104_init_chip_data(struct candevice_t *candev, int chipnr)
{
- candevices_p[card]->chip[chipnr]->chip_type=CHIP_TYPE;
- candevices_p[card]->chip[chipnr]->chip_base_addr=candevices_p[card]->io_addr;
- candevices_p[card]->chip[chipnr]->clock = 16000000;
- candevices_p[card]->chip[chipnr]->flags = 0;
- candevices_p[card]->chip[chipnr]->sja_cdr_reg = 0x08;
- candevices_p[card]->chip[chipnr]->sja_ocr_reg = 0xfa;
+ sja1000_fill_chipspecops(candev->chip[chipnr]);
+ candev->chip[chipnr]->chip_base_addr=can_ioport2ioptr(candev->io_addr);
+ candev->chip[chipnr]->clock = 16000000;
+ candev->chip[chipnr]->flags = 0;
+ candev->chip[chipnr]->sja_cdr_reg = 0x08;
+ candev->chip[chipnr]->sja_ocr_reg = 0xfa;
return 0;
}
/**
* template_init_obj_data - Initialize message buffers
- * @chipnr: Number of the CAN chip
+ * @chip: Pointer to chip specific structure
* @objnr: Number of the message buffer
*
* The function template_init_obj_data() is used to initialize the hardware
* CAN chip. In case of the sja1000 there's only one message object but on the
* i82527 chip there are 15.
* The code below is for a i82527 chip and initializes the object base addresses
- * The entry @obj_base_addr represents the first memory address of the message
+ * The entry @obj_base_addr represents the first memory address of the message
* object. In case of the sja1000 @obj_base_addr is taken the same as the chips
* base address.
* Unless the hardware uses a segmented memory map, flags can be set zero.
* Return Value: The function always returns zero
* File: src/template.c
*/
-int aim104_init_obj_data(int chipnr, int objnr)
+int aim104_init_obj_data(struct canchip_t *chip, int objnr)
{
- chips_p[chipnr]->msgobj[objnr]->obj_base_addr=chips_p[chipnr]->chip_base_addr;
- chips_p[chipnr]->msgobj[objnr]->flags=0;
-
+ chip->msgobj[objnr]->obj_base_addr=chip->chip_base_addr;
+ chip->msgobj[objnr]->obj_flags=0;
+
return 0;
}
/**
* template_program_irq - program interrupts
- * @card: Number of the hardware card.
+ * @candev: Pointer to candevice/board structure
*
- * The function template_program_irq() is used for hardware that uses
+ * The function template_program_irq() is used for hardware that uses
* programmable interrupts. If your hardware doesn't use programmable interrupts
- * you should not set the @candevices_t->flags entry to %PROGRAMMABLE_IRQ and
- * leave this function unedited. Again this function is hardware specific so
+ * you should not set the @candevices_t->flags entry to %CANDEV_PROGRAMMABLE_IRQ and
+ * leave this function unedited. Again this function is hardware specific so
* there's no example code.
* Return value: The function returns zero on success or %-ENODEV on failure
* File: src/template.c
*/
-int aim104_program_irq(int card)
+int aim104_program_irq(struct candevice_t *candev)
{
return 0;
}
* Return Value: The function does not return a value
* File: src/template.c
*/
-void aim104_write_register(unsigned char data, unsigned long address)
+void aim104_write_register(unsigned data, can_ioptr_t address)
{
- outb(data,address);
+ can_outb(data,address);
}
/**
* Return Value: The function returns the value stored in @address
* File: src/template.c
*/
-unsigned aim104_read_register(unsigned long address)
+unsigned aim104_read_register(can_ioptr_t address)
{
- return inb(address);
+ return can_inb(address);
}
/* !!! Don't change this function !!! */
projects / lincan.git / blobdiff