/* m437.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
*/
/*
*
*/
-#include <linux/autoconf.h>
-#if defined (CONFIG_MODVERSIONS) && !defined (MODVERSIONS)
-#define MODVERSIONS
-#endif
-
-#ifdef MODVERSIONS
-#include <linux/modversions.h>
-#endif
-
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <asm/errno.h>
-#include <asm/io.h>
-
+#include "../include/can.h"
+#include "../include/can_sysdep.h"
#include "../include/main.h"
#include "../include/m437.h"
#include "../include/i82527.h"
static long base = 0L;
/**
- * m437_request_io: - reserve io memory
- * @io_addr: The reserved memory starts at @io_addr, wich is the module
- * parameter @io.
+ * m437_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 m437_request_io() is used to reserve the io-memory. If your
* hardware uses a dedicated memory range as hardware control registers you
* Return Value: The function returns zero on success or %-ENODEV on failure
* File: src/m437.c
*/
-int m437_request_io(unsigned long io_addr)
+int m437_request_io(struct candevice_t *candev)
{
- if ( !( base = (long) ioremap( io_addr, IO_RANGE ) ) ) {
- CANMSG("Unable to access I/O memory at: 0x%lx\n", io_addr);
+ if (!can_request_mem_region(candev->io_addr,IO_RANGE,DEVICE_NAME)) {
+ CANMSG("Unable to request IO-memory: 0x%lx\n",candev->io_addr);
+ return -ENODEV;
+ }
+
+ if ( !( base = (long) ioremap( candev->io_addr, IO_RANGE ) ) ) {
+ CANMSG("Unable to access I/O memory at: 0x%lx\n", candev->io_addr);
+ can_release_mem_region(candev->io_addr,IO_RANGE);
return -ENODEV;
}
- DEBUGMSG("Registered IO-memory: 0x%lx - 0x%lx\n", io_addr, io_addr + IO_RANGE - 1);
+ DEBUGMSG("Registered IO-memory: 0x%lx - 0x%lx\n", candev->io_addr, candev->io_addr + IO_RANGE - 1);
return 0;
}
/**
- * m437_release_io - free reserved io-memory
- * @io_addr: Start of the memory range to be released.
+ * m437_elease_io - free reserved io memory range
+ * @candev: pointer to candevice/board which releases io
*
* The function m437_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/m437.c
*/
-int m437_release_io(unsigned long io_addr)
+int m437_release_io(struct candevice_t *candev)
{
unsigned i;
/* release I/O memory mapping */
iounmap((void*)base);
+ can_release_mem_region(candev->io_addr,IO_RANGE);
+
return 0;
}
/**
* m437_reset - hardware reset routine
- * @card: Number of the hardware card.
+ * @candev: Pointer to candevice/board structure
*
* The function m437_reset() is used to give a hardware reset. This is
* rather hardware specific so I haven't included example code. Don't forget to
* Return Value: The function returns zero on success or %-ENODEV on failure
* File: src/m437.c
*/
-int m437_reset(int card)
+int m437_reset(struct candevice_t *candev)
{
return 0;
}
#define NR_SJA1000 0
/**
- * m437_init_hw_data - Initialze hardware cards
- * @card: Number of the hardware card.
+ * m437_init_hw_data - Initialize hardware cards
+ * @candev: Pointer to candevice/board structure
*
* The function m437_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/m437.c
*/
-int m437_init_hw_data(int card)
+int m437_init_hw_data(struct candevice_t *candev)
{
DEBUGMSG("m437_init_hw_data()\n");
- candevices_p[card]->res_addr=RESET_ADDR;
- candevices_p[card]->nr_82527_chips=1;
- candevices_p[card]->nr_sja1000_chips=0;
- candevices_p[card]->flags &= ~PROGRAMMABLE_IRQ;
+ candev->res_addr=RESET_ADDR;
+ candev->nr_82527_chips=1;
+ candev->nr_sja1000_chips=0;
+ candev->nr_all_chips=1;
+ candev->flags &= ~CANDEV_PROGRAMMABLE_IRQ;
/* The M437 has no programmable IRQ */
return 0;
#define CHIP_TYPE "i82527"
/**
* m437_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 m437_init_chip_data() is used to initialize the hardware
* Return Value: The function always returns zero
* File: src/m437.c
*/
-int m437_init_chip_data(int card, int chipnr)
+int m437_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]->int_cpu_reg = iCPU_DSC | iCPU_CEN;
- candevices_p[card]->chip[chipnr]->int_clk_reg =
+ candev->chip[chipnr]->chip_type=CHIP_TYPE;
+ candev->chip[chipnr]->chip_base_addr=candev->io_addr;
+ candev->chip[chipnr]->clock = 16000000;
+ candev->chip[chipnr]->int_cpu_reg = iCPU_DSC | iCPU_CEN;
+ candev->chip[chipnr]->int_clk_reg =
iCLK_CD0 | iCLK_CD1 | iCLK_CD2 | iCLK_SL0 | iCLK_SL1;
- candevices_p[card]->chip[chipnr]->int_bus_reg = iBUS_CBY;
+ candev->chip[chipnr]->int_bus_reg = iBUS_CBY;
return 0;
}
/**
* m437_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 m437_init_obj_data() is used to initialize the hardware
* Return Value: The function always returns zero
* File: src/m437.c
*/
-int m437_init_obj_data(int chipnr, int objnr)
+int m437_init_obj_data(struct chip_t *chip, int objnr)
{
- chips_p[chipnr]->msgobj[objnr]->obj_base_addr=chips_p[chipnr]->chip_base_addr+(objnr+1)*0x10;
- chips_p[chipnr]->msgobj[objnr]->flags=0;
+ chip->msgobj[objnr]->obj_base_addr=chip->chip_base_addr+(objnr+1)*0x10;
return 0;
}
/**
* m437_program_irq - program interrupts
- * @card: Number of the hardware card.
+ * @candev: Pointer to candevice/board structure
*
* The function m437_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
+ * 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/m437.c
*/
-int m437_program_irq(int card)
+int m437_program_irq(struct candevice_t *candev)
{
return 0;
}
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