The "tscan1" and "ts7kv" board support shares minimal amount of functions.
The "ts7kv" support is moved to separate file now and is inclussion
into final build is controlled by separate option from "config.omk" file
CONFIG_OC_LINCAN_CARD_tscan1=y
CONFIG_OC_LINCAN_CARD_ts7kv=y
The both sources share "tsxxx_base" module parameter still
but solution is not elegant and use of different parameter
names is considered.
The "tscan1" seems to be used in MM I/O configurations on arm.
The the "tscan1mmio" hardware options has been included,
but there should be used ioremap() for MM I/O case.
But code found at Technologic Systems doesnot use it
ftp://ftp.embeddedarm.com/pc104-peripherals/ts-can1/ts-7800-linuxr26/ocera-lincan-src.tar.gz
so I have not changed it.
The "ts7kv" is still I/O based only. May it be, that best
and simplest solution is to compile it with can_inb/can_outb
for x86 and with can_reab/can_writeb for ARM.
The code requires testing before prepared release.
--- /dev/null
+/* ts7kv.h
+ * Header file for the Linux CAN-bus 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
+ */
+
+//Ids SECTION
+#define TS7KV_ID0 0x41
+#define TS7KV_ID1 0x20
+
+//MEMORY SECTION
+#if defined(CONFIG_TS7800_PLATFORM)
+#define TSXXX_BASE_IO 0xee000000
+#elif defined(CONFIG_MACH_TS72XX)
+#define TSXXX_BASE_IO 0x01E00000
+#elif defined(CONFIG_X86)
+#define TSXXX_BASE_IO 0x0
+#endif
+
+//IRQs
+#if defined(CONFIG_TS7800_PLATFORM)
+#define TSXXX_IRQ5 64+5
+#define TSXXX_IRQ6 64+6
+#define TSXXX_IRQ7 64+7
+#elif defined(CONFIG_MACH_TS72XX)
+#define TSXXX_IRQ5 22
+#define TSXXX_IRQ6 33
+#define TSXXX_IRQ7 40
+#elif defined(CONFIG_X86)
+#define TSXXX_IRQ5 5
+#define TSXXX_IRQ6 6
+#define TSXXX_IRQ7 7
+#endif
+
+#define TS7KV_BASE_IO 0xE0
+#define TS7KV_IO_RANGE 0x8
+#define TS7KV_CAN_RANGE 0x20
+
+#define TS7KV_ID0_REG 0x0
+#define TS7KV_ID1_REG 0x1
+#define TS7KV_PLD_REG 0x2
+
+#define TS7KV_CTR1_REG 0x4
+#define TS7KV_CTR2_REG 0x5
+#define TS7KV_FPGA_REG 0x6
+#define TS7KV_JMP_REG 0x7
+#define TS7KV_WIN_REG 0x1E
+
+int ts7kv_request_io(struct candevice_t *candev);
+int ts7kv_release_io(struct candevice_t *candev);
+int ts7kv_reset(struct candevice_t *candev);
+int ts7kv_init_hw_data(struct candevice_t *candev);
+int ts7kv_init_chip_data(struct candevice_t *candev, int chipnr);
+int ts7kv_init_obj_data(struct canchip_t *chip, int objnr);
+void ts7kv_write_register(unsigned data, can_ioptr_t address);
+unsigned ts7kv_read_register(can_ioptr_t address);
+int ts7kv_program_irq(struct candevice_t *candev);
-/* template.h
+/* tscan1.h
* Header file for the Linux CAN-bus driver.
* Written by Arnaud Westenberg email:arnaud@wanadoo.nl
* Rewritten for new CAN queues by Pavel Pisa - OCERA team member
//Ids SECTION
#define TSCAN1_ID0 0xF6
#define TSCAN1_ID1 0xB9
-#define TS7KV_ID0 0x41
-#define TS7KV_ID1 0x20
//MEMORY SECTION
-#ifdef CONFIG_ARM
-#include <asm-arm/arch-ep93xx/regmap.h>
-#define TSXXX_BASE_IO 0x01E00000
+#if defined(CONFIG_TS7800_PLATFORM)
+#define TSXXX_BASE_IO 0xee000000
+#elif defined(CONFIG_MACH_TS72XX)
+#define TSXXX_BASE_IO 0x01E00000
+#elif defined(CONFIG_X86)
+#define TSXXX_BASE_IO 0x0
#endif
-#define TSCAN1_BASE_IO 0x150
-#define TS7KV_BASE_IO 0xE0
-#define TSXXX_IO_RANGE 0x8
-#define TSXXX_CAN_RANGE 0x20
+//IRQs
+#if defined(CONFIG_TS7800_PLATFORM)
+#define TSXXX_IRQ5 64+5
+#define TSXXX_IRQ6 64+6
+#define TSXXX_IRQ7 64+7
+#elif defined(CONFIG_MACH_TS72XX)
+#define TSXXX_IRQ5 22
+#define TSXXX_IRQ6 33
+#define TSXXX_IRQ7 40
+#elif defined(CONFIG_X86)
+#define TSXXX_IRQ5 5
+#define TSXXX_IRQ6 6
+#define TSXXX_IRQ7 7
+#endif
-#define TSXXX_ID0_REG 0x0
-#define TSXXX_ID1_REG 0x1
-#define TSXXX_PLD_REG 0x2
+#define TSCAN1_BASE_IO 0x150
+#define TSCAN1_IO_RANGE 0x8
+#define TSCAN1_CAN_RANGE 0x20
+#define TSCAN1_ID0_REG 0x0
+#define TSCAN1_ID1_REG 0x1
+#define TSCAN1_PLD_REG 0x2
#define TSCAN1_WIN_REG 0x4
#define TSCAN1_MOD_REG 0x5
#define TSCAN1_JMP_REG 0x6
-#define TS7KV_CTR1_REG 0x4
-#define TS7KV_CTR2_REG 0x5
-#define TS7KV_FPGA_REG 0x6
-#define TS7KV_JMP_REG 0x7
-#define TS7KV_WIN_REG 0x1E
-
-//IRQs
-#ifdef CONFIG_ARM
-#define TSXXX_IRQ5 5
-#define TSXXX_IRQ6 33
-#define TSXXX_IRQ7 40
-#endif
-
-#ifdef CONFIG_X86
-#define TSXXX_IRQ5 5
-#define TSXXX_IRQ6 6
-#define TSXXX_IRQ7 7
-#endif
-
-
int tscan1_request_io(struct candevice_t *candev);
int tscan1_release_io(struct candevice_t *candev);
int tscan1_reset(struct candevice_t *candev);
void tscan1_write_register(unsigned data, can_ioptr_t address);
unsigned tscan1_read_register(can_ioptr_t address);
int tscan1_program_irq(struct candevice_t *candev);
-
-unsigned long tscan1_getmappedaddr(unsigned long address);
-unsigned short tscan1_getcandevidx(unsigned long address);
-unsigned long tscan1_setpage_getaddr(unsigned long address, signed short *nwinbak, unsigned long *winaddr);
pc_i03 pcm3680 aim104 m437 pcccan ssv bfadcan gensja1000io pikronisa eb8245 \
kv_pcican msmcan oscar adlink7841 pcan_pci esdpci200 unican virtual template
-lincan_morecards_NAMES = hms30c7202_can ns_dev_can ipci165 pimx1 tscan1 nsi_canpci sh7760
+lincan_morecards_NAMES = hms30c7202_can ns_dev_can ipci165 pimx1 tscan1 ts7kv nsi_canpci sh7760
default_CONFIG = CONFIG_OC_LINCAN=y CONFIG_OC_LINCANRTL=n CONFIG_OC_LINCANVME=n
default_CONFIG += CONFIG_OC_LINCAN_PORTIO_ONLY=n CONFIG_OC_LINCAN_MEMIO_ONLY=n
extern int eb8245_register(struct hwspecops_t *hwspecops);
extern int adlink7841_register(struct hwspecops_t *hwspecops);
extern int tscan1_register(struct hwspecops_t *hwspecops);
+extern int tscan1mmio_register(struct hwspecops_t *hwspecops);
extern int ts7kv_register(struct hwspecops_t *hwspecops);
extern int ns_dev_register(struct hwspecops_t *hwspecops);
extern int hms30c7202_register(struct hwspecops_t *hwspecops);
#endif
#if defined(CONFIG_OC_LINCAN_CARD_tscan1)
{"tscan1", tscan1_register, 1},
+ {"tscan1mmio", tscan1mmio_register, 1},
+ #endif
+ #if defined(CONFIG_OC_LINCAN_CARD_ts7kv)
{"ts7kv", ts7kv_register, 1},
#endif
#if defined(CONFIG_OC_LINCAN_CARD_ns_dev_can)
--- /dev/null
+/* ts7kv.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
+ *
+ * The support for TS-CAN1 and TS-7KV provided by Ronald Gomes
+ * from Technologic Systems <http://www.embeddedarm.com/>
+ */
+
+#include "../include/can.h"
+#include "../include/can_sysdep.h"
+#include "../include/main.h"
+#include "../include/sja1000p.h"
+
+#include <linux/module.h>
+#include "../include/modparms.h"
+#include "../include/devcommon.h"
+
+#include "../include/ts7kv.h"
+
+static CAN_DEFINE_SPINLOCK(ts7kv_win_lock);
+
+#ifdef CONFIG_OC_LINCAN_CARD_tscan1
+
+extern unsigned long tsxxx_base;
+
+#else /*CONFIG_OC_LINCAN_CARD_tscan1*/
+
+#if defined(TSXXX_BASE_IO)
+unsigned long tsxxx_base=TSXXX_BASE_IO;
+#else
+unsigned long tsxxx_base=0;
+#endif
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,12))
+MODULE_PARM(tsxxx_base, "1i");
+#else /* LINUX_VERSION_CODE >= 2,6,12 */
+module_param(tsxxx_base, ulong, 0);
+#endif /* LINUX_VERSION_CODE >= 2,6,12 */
+
+MODULE_PARM_DESC(tscanio,"TSCAN CAN controller IO address for each board");
+MODULE_PARM_DESC(tsxxx_base,"The base of the ISA/8-bit IO space for TSxxx CAN peripherals in the system");
+
+#endif /*CONFIG_OC_LINCAN_CARD_tscan1*/
+
+/**
+ * ts7kv_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 ts7kv_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.
+ * %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/ts7kv.c
+ */
+int ts7kv_request_io(struct candevice_t *candev)
+{
+ if (!can_request_io_region(candev->io_addr, TS7KV_CAN_RANGE, "ts7kv-can")) {
+ CANMSG("Unable to request CAN IO port: 0x%lx\n", candev->io_addr);
+ return -ENODEV;
+ } else {
+ DEBUGMSG("Registered CAN IO port: 0x%lx - 0x%lx\n",
+ candev->io_addr, candev->io_addr+TS7KV_CAN_RANGE-1);
+ }
+
+ return 0;
+}
+
+/**
+ * ts7kv_release_io - free reserved io memory range
+ * @candev: pointer to candevice/board which releases io
+ *
+ * The function ts7kv_release_io() is used to free reserved io-memory.
+ * In case you have reserved more io memory, don't forget to free it here.
+ * IO_RANGE is the io-memory range that gets released, 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 always returns zero
+ * File: src/ts7kv.c
+ */
+int ts7kv_release_io(struct candevice_t *candev)
+{
+ can_release_io_region(candev->io_addr, TS7KV_CAN_RANGE);
+ return 0;
+}
+
+/**
+ * ts7kv_reset - hardware reset routine
+ * @candev: Pointer to candevice/board structure
+ *
+ * The function ts7kv_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/ts7kv.c
+ */
+int ts7kv_reset(struct candevice_t *candev)
+{
+ unsigned short i=0, chipnr;
+ struct canchip_t *chip;
+
+ DEBUGMSG("Resetting %s hardware ...\n", candev->hwname);
+
+ for(chipnr=0;chipnr<candev->nr_sja1000_chips;chipnr++) {
+ chip=candev->chip[chipnr];
+ can_write_reg(chip, sjaMOD_RM, SJAMOD);
+ udelay(1000);
+ can_write_reg(chip, 0x00, SJAIER);
+ udelay(1000);
+ i=20;
+ while (can_read_reg(chip, SJAMOD)&sjaMOD_RM){
+ if(!i--) return -ENODEV;
+ udelay(1000);
+ can_write_reg(chip, 0, SJAMOD);
+ }
+ udelay(1000);
+ can_write_reg(chip, sjaCDR_PELICAN, SJACDR);
+ can_write_reg(chip, 0x00, SJAIER);
+ }
+
+ return 0;
+}
+
+int ts7kv_check_presence(unsigned long remap_io_addr, int *pjmp)
+{
+ int result = -ENODEV;
+
+ if (!can_request_io_region(remap_io_addr, TS7KV_IO_RANGE, "ts7kv-probe"))
+ return -ENODEV;
+
+ do {
+ if (can_inb(remap_io_addr+TS7KV_ID0_REG)!=TS7KV_ID0 ||
+ can_inb(remap_io_addr+TS7KV_ID1_REG)!=TS7KV_ID1)
+ break;
+
+ if(pjmp)
+ *pjmp = can_inb(remap_io_addr+TS7KV_JMP_REG);
+
+ result = 0;
+ } while (0);
+
+ can_release_io_region(remap_io_addr, TS7KV_IO_RANGE);
+
+ return result;
+}
+
+#define RESET_ADDR 0x100
+#define NR_82527 0
+#define NR_SJA1000 1
+
+/**
+ * ts7kv_init_hw_data - Initialize hardware cards
+ * @candev: Pointer to candevice/board structure
+ *
+ * The function ts7kv_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 %CANDEV_PROGRAMMABLE_IRQ to indicate that
+ * the hardware uses programmable interrupts.
+ * Return Value: The function always returns zero
+ * File: src/ts7kv.c
+ */
+int ts7kv_init_hw_data(struct candevice_t *candev)
+{
+ int i, j, jmp;
+ unsigned long io_addr;
+ unsigned long remap_io_addr;
+ unsigned long can_io_addr;
+
+ io_addr = candev->io_addr;
+
+ if(io_addr && (io_addr != (unsigned long)-1)) {
+ remap_io_addr = io_addr + tsxxx_base;
+
+ if(ts7kv_check_presence(remap_io_addr, &jmp)){
+ CANMSG("No TS7KV card found at address 0x%lx\n",
+ remap_io_addr);
+ return -ENODEV;
+ }
+ } else {
+ DEBUGMSG("Scanning bus for TS7KV boards...\n");
+
+ for (i=0; 1;i++)
+ {
+ if(i >= 4) {
+ CANMSG("No TS7KV boards found for slot %d\n", candev->candev_idx);
+ return -ENODEV;
+ }
+
+ io_addr = TS7KV_BASE_IO + i*TS7KV_IO_RANGE;
+ remap_io_addr = io_addr + tsxxx_base;
+
+ for (j = 0; j < MAX_HW_CARDS; j++) {
+ if(io[j] == io_addr){
+ j = -1;
+ break;
+ }
+ }
+ if(j<0)
+ continue;
+
+ if(!ts7kv_check_presence(remap_io_addr, &jmp))
+ break;
+
+ }
+ DEBUGMSG("TS7KV board was found at 0x%lx for driver slot %d\n",
+ io_addr, candev->candev_idx);
+
+ io[candev->candev_idx] = io_addr;
+ }
+
+ can_io_addr = ((io_addr>>3)&0x03)*0x20;
+
+ /* dev_base_addr address is used to store remapped PLD base address */
+ candev->dev_base_addr = remap_io_addr;
+
+ /* dev_base_addr address is used to store remapped slave window address */
+ candev->io_addr = can_io_addr+tsxxx_base;
+
+ /* unused reset address is used to store jumper setting */
+ candev->res_addr = jmp;
+
+ candev->nr_82527_chips=NR_82527;
+ candev->nr_sja1000_chips=NR_SJA1000;
+ candev->nr_all_chips=NR_82527+NR_SJA1000;
+ candev->flags &= ~CANDEV_PROGRAMMABLE_IRQ;
+
+ DEBUGMSG("Memory region at 0x%lx assigned to sja1000 of driver %d/%s\n",
+ candev->io_addr, candev->candev_idx, candev->hwname);
+
+ return 0;
+}
+
+/**
+ * ts7kv_init_chip_data - Initialize chips
+ * @candev: Pointer to candevice/board structure
+ * @chipnr: Number of the CAN chip on the hardware card
+ *
+ * The function ts7kv_init_chip_data() is used to initialize the hardware
+ * structure containing information about the CAN chips.
+ * %CHIP_TYPE represents the type of CAN chip. %CHIP_TYPE can be "i82527" or
+ * "sja1000".
+ * The @chip_base_addr entry represents the start of the 'official' memory map
+ * of the installed chip. It's likely that this is the same as the @io_addr
+ * argument supplied at module loading time.
+ * 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:
+ * %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:
+ * %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
+ * 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/ts7kv.c
+ */
+int ts7kv_init_chip_data(struct candevice_t *candev, int chipnr)
+{
+ unsigned long default_clk = 16000 * 1000;
+ int jmp;
+ int irq = -1;
+
+ /* unused reset address is used to store jumper setting */
+ jmp = candev->res_addr;
+
+ if (jmp&0x10 && jmp&0x20) irq=TSXXX_IRQ5;
+ else if (jmp&0x10) irq=TSXXX_IRQ6;
+ else if (jmp&0x20) irq=TSXXX_IRQ7;
+
+ if(irq<0) {
+ CANMSG("Jumpers select no IRQ for TS7KV CAN at 0x%lx of driver %d/%s\n",
+ candev->io_addr, candev->candev_idx, candev->hwname);
+ return -ENODEV;
+ }
+
+ candev->chip[chipnr]->chip_irq = irq;
+
+ sja1000p_fill_chipspecops(candev->chip[chipnr]);
+
+ if(candev->chip[chipnr]->clock <= 0)
+ candev->chip[chipnr]->clock = default_clk;
+ candev->chip[chipnr]->int_clk_reg = 0x0;
+ candev->chip[chipnr]->int_bus_reg = 0x0;
+ candev->chip[chipnr]->sja_cdr_reg = sjaCDR_CBP | sjaCDR_CLK_OFF;
+ candev->chip[chipnr]->sja_ocr_reg = sjaOCR_MODE_NORMAL | sjaOCR_TX0_LH;
+ candev->chip[chipnr]->chip_base_addr = candev->io_addr;
+
+ return 0;
+}
+
+/**
+ * ts7kv_init_obj_data - Initialize message buffers
+ * @chip: Pointer to chip specific structure
+ * @objnr: Number of the message buffer
+ *
+ * The function ts7kv_init_obj_data() is used to initialize the hardware
+ * structure containing information about the different message objects on the
+ * 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
+ * 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/ts7kv.c
+ */
+int ts7kv_init_obj_data(struct canchip_t *chip, int objnr)
+{
+ chip->msgobj[objnr]->obj_base_addr = chip->chip_base_addr;
+ return 0;
+}
+
+/**
+ * ts7kv_program_irq - program interrupts
+ * @candev: Pointer to candevice/board structure
+ *
+ * The function ts7kv_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 %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/ts7kv.c
+ */
+int ts7kv_program_irq(struct candevice_t *candev)
+{
+ return 0;
+}
+
+/**
+ * ts7kv_write_register - Low level write register routine
+ * @data: data to be written
+ * @address: memory address to write to
+ *
+ * The function ts7kv_write_register() is used to write to hardware registers
+ * on the CAN chip. You should only have to edit this function if your hardware
+ * uses some specific write process.
+ * Return Value: The function does not return a value
+ * File: src/ts7kv.c
+ */
+void ts7kv_write_register(unsigned data, can_ioptr_t address)
+{
+ unsigned long addr=can_ioptr2ulong(address);
+ can_ioptr_t base = can_ulong2ioptr(addr & ~0x1f);
+ unsigned char nwin = 0x10;
+ unsigned char savewin;
+
+ can_spin_irqflags_t flags;
+
+ if((addr&0x1f) > 0x1d) {
+ nwin++;
+ address -= 0x10;
+ }
+
+ can_spin_lock_irqsave(&ts7kv_win_lock,flags);
+ savewin = can_inb(base+TS7KV_WIN_REG);
+ if(nwin == savewin) {
+ can_outb(data, address);
+ }else{
+ can_outb(nwin, base+TS7KV_WIN_REG);
+ can_outb(data, address);
+ can_outb(savewin, base+TS7KV_WIN_REG);
+ }
+ can_spin_unlock_irqrestore(&ts7kv_win_lock,flags);
+}
+
+/**
+ * ts7kv_read_register - Low level read register routine
+ * @address: memory address to read from
+ *
+ * The function ts7kv_read_register() is used to read from hardware registers
+ * on the CAN chip. You should only have to edit this function if your hardware
+ * uses some specific read process.
+ * Return Value: The function returns the value stored in @address
+ * File: src/ts7kv.c
+ */
+unsigned ts7kv_read_register(can_ioptr_t address)
+{
+ unsigned long addr=can_ioptr2ulong(address);
+ can_ioptr_t base = can_ulong2ioptr(addr & ~0x1f);
+ unsigned char nwin = 0x10;
+ unsigned char savewin;
+ unsigned val;
+
+ can_spin_irqflags_t flags;
+
+ if((addr&0x1f) > 0x1d) {
+ nwin++;
+ address -= 0x10;
+ }
+
+ can_spin_lock_irqsave(&ts7kv_win_lock,flags);
+ savewin = can_inb(base+TS7KV_WIN_REG);
+ if(nwin == savewin) {
+ val = can_inb(address);
+ }else{
+ can_outb(nwin, base+TS7KV_WIN_REG);
+ val = can_inb(address);
+ can_outb(savewin, base+TS7KV_WIN_REG);
+ }
+ can_spin_unlock_irqrestore(&ts7kv_win_lock,flags);
+
+ return val;
+}
+
+extern int ts7kv_register(struct hwspecops_t *hwspecops)
+{
+ hwspecops->request_io = ts7kv_request_io;
+ hwspecops->release_io = ts7kv_release_io;
+ hwspecops->reset = ts7kv_reset;
+ hwspecops->init_hw_data = ts7kv_init_hw_data;
+ hwspecops->init_chip_data = ts7kv_init_chip_data;
+ hwspecops->init_obj_data = ts7kv_init_obj_data;
+ hwspecops->write_register = ts7kv_write_register;
+ hwspecops->read_register = ts7kv_read_register;
+ hwspecops->program_irq = ts7kv_program_irq;
+ return 0;
+}
#include "../include/can.h"
#include "../include/can_sysdep.h"
#include "../include/main.h"
-#include "../include/pcm3680.h"
#include "../include/sja1000p.h"
#include <linux/module.h>
#include "../include/tscan1.h"
-static CAN_DEFINE_SPINLOCK(ts7kv_win_lock);
-
unsigned long tscanio[MAX_HW_CARDS]={-1,-1,-1,-1,-1,-1,-1,-1};
unsigned int tscanio_specified;
-#if defined(TS7XXX_IO8_BASE)&&defined(TSXXX_BASE_IO)
-int tsxxx_base=TS7XXX_IO8_BASE+TSXXX_BASE_IO;
-#elif defined(TS7XXX_IO8_BASE)
-int tsxxx_base=TS7XXX_IO8_BASE;
-#else /*TS7XXX_IO8_BASE*/
+#if defined(TSXXX_BASE_IO)
+unsigned long tsxxx_base=TSXXX_BASE_IO;
+#else
unsigned long tsxxx_base=0;
-#endif /*TS7XXX_IO8_BASE*/
+#endif
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,12))
MODULE_PARM(tscanio, "1-" __MODULE_STRING(MAX_HW_CARDS)"i");
MODULE_PARM(tsxxx_base, "1i");
#else /* LINUX_VERSION_CODE >= 2,6,12 */
-module_param_array(tscanio, int, &tscanio_specified, 0);
+module_param_array(tscanio, ulong, &tscanio_specified, 0);
module_param(tsxxx_base, ulong, 0);
#endif /* LINUX_VERSION_CODE >= 2,6,12 */
MODULE_PARM_DESC(tscanio,"TSCAN CAN controller IO address for each board");
MODULE_PARM_DESC(tsxxx_base,"The base of the ISA/8-bit IO space for TSxxx CAN peripherals in the system");
+static unsigned long tscan1_tscanio_ranges[] =
+ { 0x100, 0x120, 0x180, 0x1A0, 0x200, 0x240, 0x280, 0x320};
+
+static inline unsigned tscan1_read_pld_register(struct candevice_t *candev, can_ioptr_t address)
+{
+ return candev->hwspecops->read_register(address);
+}
+
+static inline void tscan1_write_pld_register(struct candevice_t *candev, unsigned data, can_ioptr_t address)
+{
+ candev->hwspecops->write_register(data, address);
+}
/**
* tscan1_request_io: - reserve io or memory range for can board
int tscan1_request_io(struct candevice_t *candev)
{
unsigned long can_io_addr;
- unsigned long remap_can_io_addr = 0;
+ unsigned long rebased_can_io_addr;
+ can_ioptr_t remap_can_io_addr;
+ can_ioptr_t remap_pld_io_addr;
unsigned char mode;
int i, j;
- if (!can_request_io_region(candev->io_addr, TSXXX_IO_RANGE, "tscan1-base")) {
+ if (!can_request_io_region(candev->io_addr, TSCAN1_IO_RANGE, "tscan1-base")) {
CANMSG("Unable to request base IO port: 0x%lx\n", candev->io_addr);
return -ENODEV;
} else {
DEBUGMSG("Registered base IO port: 0x%lx - 0x%lx\n",
- candev->io_addr, candev->io_addr+TSXXX_IO_RANGE-1);
+ candev->io_addr, candev->io_addr+TSCAN1_IO_RANGE-1);
}
can_io_addr = tscanio[candev->candev_idx];
if(can_io_addr && (can_io_addr != (unsigned long)-1)) {
- remap_can_io_addr = tsxxx_base + can_io_addr;
+ rebased_can_io_addr = tsxxx_base + can_io_addr;
- if (!can_request_io_region(remap_can_io_addr, TSXXX_CAN_RANGE, "tscan1-can")) {
- CANMSG("Unable to request CAN IO port: 0x%lx\n", remap_can_io_addr);
- can_release_io_region(candev->io_addr, TSXXX_IO_RANGE);
+ if (!can_request_io_region(rebased_can_io_addr, TSCAN1_CAN_RANGE, "tscan1-can")) {
+ CANMSG("Unable to request CAN IO port: 0x%lx\n", rebased_can_io_addr);
+ can_release_io_region(candev->io_addr, TSCAN1_IO_RANGE);
return -ENODEV;
} else {
DEBUGMSG("Registered CAN IO port: 0x%lx - 0x%lx\n",
- remap_can_io_addr, remap_can_io_addr+TSXXX_CAN_RANGE-1);
+ rebased_can_io_addr, rebased_can_io_addr+TSCAN1_CAN_RANGE-1);
}
} else {
for(i = 0; 1; i++) {
if(i>=8) {
CANMSG("Unable find range for CAN IO port\n");
- can_release_io_region(candev->io_addr, TSXXX_IO_RANGE);
+ can_release_io_region(candev->io_addr, TSCAN1_IO_RANGE);
return -ENODEV;
}
- can_io_addr = 0x100 + i * TSXXX_CAN_RANGE;
+ can_io_addr = tscan1_tscanio_ranges[i];
for (j = 0; j < MAX_HW_CARDS; j++) {
if(tscanio[j] == can_io_addr) {
j = -1;
if(j<0)
continue;
- remap_can_io_addr = tsxxx_base + can_io_addr;
+ rebased_can_io_addr = tsxxx_base + can_io_addr;
- if (can_request_io_region(remap_can_io_addr, TSXXX_CAN_RANGE, "tscan1-can"))
+ if (can_request_io_region(rebased_can_io_addr, TSCAN1_CAN_RANGE, "tscan1-can"))
break;
}
tscanio[candev->candev_idx] = can_io_addr;
DEBUGMSG("Found free range and registered CAN IO port: 0x%lx - 0x%lx\n",
- remap_can_io_addr, remap_can_io_addr+TSXXX_CAN_RANGE-1);
+ rebased_can_io_addr, rebased_can_io_addr+TSCAN1_CAN_RANGE-1);
}
+ remap_can_io_addr = can_ulong2ioptr(rebased_can_io_addr);
+
candev->chip[0]->chip_base_addr = remap_can_io_addr;
candev->chip[0]->msgobj[0]->obj_base_addr = remap_can_io_addr;
- switch(can_io_addr) {
- case 0x100: mode=0x60; break;
- case 0x120: mode=0x61; break;
- case 0x180: mode=0x62; break;
- case 0x1A0: mode=0x63; break;
- case 0x200: mode=0x64; break;
- case 0x240: mode=0x65; break;
- case 0x280: mode=0x66; break;
- case 0x320: mode=0x67; break;
- default: mode=0x60; break;
+ mode = 0x60;
+ for(i = 0; i < 8; i++) {
+ if (can_io_addr == tscan1_tscanio_ranges[i]) {
+ mode |= i;
+ break;
+ }
}
- can_outb(0x00, candev->io_addr+TSCAN1_WIN_REG);
- can_outb(mode, candev->io_addr+TSCAN1_MOD_REG);
-
- return 0;
-}
+ remap_pld_io_addr = can_ulong2ioptr(candev->io_addr);
-int ts7kv_request_io(struct candevice_t *candev)
-{
- if (!can_request_io_region(candev->io_addr, TSXXX_CAN_RANGE, "ts7kv-can")) {
- CANMSG("Unable to request CAN IO port: 0x%lx\n", candev->io_addr);
- return -ENODEV;
- } else {
- DEBUGMSG("Registered CAN IO port: 0x%lx - 0x%lx\n",
- candev->io_addr, candev->io_addr+TSXXX_CAN_RANGE-1);
- }
+ tscan1_write_pld_register(candev, 0x00, remap_pld_io_addr+TSCAN1_WIN_REG);
+ tscan1_write_pld_register(candev, mode, remap_pld_io_addr+TSCAN1_MOD_REG);
return 0;
}
*/
int tscan1_release_io(struct candevice_t *candev)
{
- unsigned long remap_can_io_addr;
+ unsigned long rebased_can_io_addr;
+ can_ioptr_t remap_pld_io_addr = can_ulong2ioptr(candev->io_addr);
if(candev->chip[0]){
- remap_can_io_addr = candev->chip[0]->chip_base_addr;
- if(remap_can_io_addr != (unsigned long)-1)
- can_release_io_region(remap_can_io_addr, TSXXX_CAN_RANGE);
+ rebased_can_io_addr = candev->chip[0]->chip_base_addr;
+ if(rebased_can_io_addr != (unsigned long)-1)
+ can_release_io_region(rebased_can_io_addr, TSCAN1_CAN_RANGE);
}
- can_outb(0x20, candev->io_addr+TSCAN1_MOD_REG);
+ tscan1_write_pld_register(candev, 0x20, remap_pld_io_addr+TSCAN1_MOD_REG);
- can_release_io_region(candev->io_addr, TSXXX_IO_RANGE);
- return 0;
-}
-
-int ts7kv_release_io(struct candevice_t *candev)
-{
- can_release_io_region(candev->io_addr, TSXXX_CAN_RANGE);
+ can_release_io_region(candev->io_addr, TSCAN1_IO_RANGE);
return 0;
}
#define NR_82527 0
#define NR_SJA1000 1
-int tscan1_check_presence(unsigned long remap_io_addr, int *pjmp)
+int tscan1_check_presence(struct candevice_t *candev, unsigned long rebased_pld_io_addr, int *pjmp)
{
+ can_ioptr_t remap_pld_io_addr;
int result = -ENODEV;
- if (!can_request_io_region(remap_io_addr, TSXXX_IO_RANGE, "tscan1-probe"))
+ if (!can_request_io_region(rebased_pld_io_addr, TSCAN1_IO_RANGE, "tscan1-probe"))
return -ENODEV;
do {
- if (can_inb(remap_io_addr+TSXXX_ID0_REG)!=TSCAN1_ID0 ||
- can_inb(remap_io_addr+TSXXX_ID1_REG)!=TSCAN1_ID1)
+ remap_pld_io_addr = can_ulong2ioptr(rebased_pld_io_addr);
+
+ if (tscan1_read_pld_register(candev, remap_pld_io_addr+TSCAN1_ID0_REG)!=TSCAN1_ID0 ||
+ tscan1_read_pld_register(candev, remap_pld_io_addr+TSCAN1_ID1_REG)!=TSCAN1_ID1)
break;
- can_outb(0x00, remap_io_addr+TSCAN1_WIN_REG);
- can_outb(0x20, remap_io_addr+TSCAN1_MOD_REG);
+ tscan1_write_pld_register(candev, 0x00, remap_pld_io_addr+TSCAN1_WIN_REG);
+ tscan1_write_pld_register(candev, 0x20, remap_pld_io_addr+TSCAN1_MOD_REG);
if(pjmp)
- *pjmp = can_inb(remap_io_addr+TSCAN1_JMP_REG);
+ *pjmp = tscan1_read_pld_register(candev, remap_pld_io_addr+TSCAN1_JMP_REG);
result = 0;
} while (0);
- can_release_io_region(remap_io_addr, TSXXX_IO_RANGE);
+ can_release_io_region(rebased_pld_io_addr, TSCAN1_IO_RANGE);
return result;
}
{
int i, j, jmp;
unsigned long io_addr;
- unsigned long remap_io_addr;
+ unsigned long rebased_pld_io_addr;
io_addr = candev->io_addr;
if(io_addr && (io_addr != (unsigned long)-1)) {
- remap_io_addr = io_addr + tsxxx_base;
+ rebased_pld_io_addr = io_addr + tsxxx_base;
- if(tscan1_check_presence(remap_io_addr, &jmp)){
+ if(tscan1_check_presence(candev, rebased_pld_io_addr, &jmp)){
CANMSG("No TSCAN1 card found at address 0x%lx\n",
- remap_io_addr);
+ rebased_pld_io_addr);
return -ENODEV;
}
} else {
return -ENODEV;
}
- io_addr = TSCAN1_BASE_IO + i*TSXXX_IO_RANGE;
- remap_io_addr = io_addr + tsxxx_base;
+ io_addr = TSCAN1_BASE_IO + i*TSCAN1_IO_RANGE;
+ rebased_pld_io_addr = io_addr + tsxxx_base;
for (j = 0; j < MAX_HW_CARDS; j++) {
if(io[j] == io_addr){
if(j<0)
continue;
- if(!tscan1_check_presence(remap_io_addr, &jmp))
+ if(!tscan1_check_presence(candev, rebased_pld_io_addr, &jmp))
break;
}
io[candev->candev_idx] = io_addr;
}
- candev->io_addr = remap_io_addr;
+ candev->io_addr = rebased_pld_io_addr;
/* unused reset address is used to store jumper setting */
candev->res_addr = jmp;
}
-int ts7kv_check_presence(unsigned long remap_io_addr, int *pjmp)
-{
- int result = -ENODEV;
-
- if (!can_request_io_region(remap_io_addr, TSXXX_IO_RANGE, "ts7kv-probe"))
- return -ENODEV;
-
- do {
- if (can_inb(remap_io_addr+TSXXX_ID0_REG)!=TS7KV_ID0 ||
- can_inb(remap_io_addr+TSXXX_ID1_REG)!=TS7KV_ID1)
- break;
-
- if(pjmp)
- *pjmp = can_inb(remap_io_addr+TS7KV_JMP_REG);
-
- result = 0;
- } while (0);
-
- can_release_io_region(remap_io_addr, TSXXX_IO_RANGE);
-
- return result;
-}
-
-int ts7kv_init_hw_data(struct candevice_t *candev)
-{
- int i, j, jmp;
- unsigned long io_addr;
- unsigned long remap_io_addr;
- unsigned long can_io_addr;
-
- io_addr = candev->io_addr;
-
- if(io_addr && (io_addr != (unsigned long)-1)) {
- remap_io_addr = io_addr + tsxxx_base;
-
- if(ts7kv_check_presence(remap_io_addr, &jmp)){
- CANMSG("No TS7KV card found at address 0x%lx\n",
- remap_io_addr);
- return -ENODEV;
- }
- } else {
- DEBUGMSG("Scanning bus for TS7KV boards...\n");
-
- for (i=0; 1;i++)
- {
- if(i >= 4) {
- CANMSG("No TS7KV boards found for slot %d\n", candev->candev_idx);
- return -ENODEV;
- }
-
- io_addr = TS7KV_BASE_IO + i*TSXXX_IO_RANGE;
- remap_io_addr = io_addr + tsxxx_base;
-
- for (j = 0; j < MAX_HW_CARDS; j++) {
- if(io[j] == io_addr){
- j = -1;
- break;
- }
- }
- if(j<0)
- continue;
-
- if(!ts7kv_check_presence(remap_io_addr, &jmp))
- break;
-
- }
- DEBUGMSG("TS7KV board was found at 0x%lx for driver slot %d\n",
- io_addr, candev->candev_idx);
-
- io[candev->candev_idx] = io_addr;
- }
-
- can_io_addr = ((io_addr>>3)&0x03)*0x20;
- tscanio[candev->candev_idx] = can_io_addr;
-
- /* dev_base_addr address is used to store remapped PLD base address */
- candev->dev_base_addr = remap_io_addr;
-
- /* dev_base_addr address is used to store remapped slave window address */
- candev->io_addr = can_io_addr+tsxxx_base;
-
- /* unused reset address is used to store jumper setting */
- candev->res_addr = jmp;
-
- candev->nr_82527_chips=NR_82527;
- candev->nr_sja1000_chips=NR_SJA1000;
- candev->nr_all_chips=NR_82527+NR_SJA1000;
- candev->flags &= ~CANDEV_PROGRAMMABLE_IRQ;
-
- DEBUGMSG("Memory region at 0x%lx assigned to sja1000 of driver %d/%s\n",
- candev->io_addr, candev->candev_idx, candev->hwname);
-
- return 0;
-}
-
/**
* tscan1_init_chip_data - Initialize chips
* @candev: Pointer to candevice/board structure
return 0;
}
-int ts7kv_init_chip_data(struct candevice_t *candev, int chipnr)
-{
- unsigned long default_clk = 16000 * 1000;
- int jmp;
- int irq = -1;
-
- /* unused reset address is used to store jumper setting */
- jmp = candev->res_addr;
-
- if (jmp&0x10 && jmp&0x20) irq=TSXXX_IRQ5;
- else if (jmp&0x10) irq=TSXXX_IRQ6;
- else if (jmp&0x20) irq=TSXXX_IRQ7;
-
- if(irq<0) {
- CANMSG("Jumpers select no IRQ for TS7KV CAN at 0x%lx of driver %d/%s\n",
- candev->io_addr, candev->candev_idx, candev->hwname);
- return -ENODEV;
- }
-
- candev->chip[chipnr]->chip_irq = irq;
-
- sja1000p_fill_chipspecops(candev->chip[chipnr]);
-
- if(candev->chip[chipnr]->clock <= 0)
- candev->chip[chipnr]->clock = default_clk;
- candev->chip[chipnr]->int_clk_reg = 0x0;
- candev->chip[chipnr]->int_bus_reg = 0x0;
- candev->chip[chipnr]->sja_cdr_reg = sjaCDR_CBP | sjaCDR_CLK_OFF;
- candev->chip[chipnr]->sja_ocr_reg = sjaOCR_MODE_NORMAL | sjaOCR_TX0_LH;
- candev->chip[chipnr]->chip_base_addr = candev->io_addr;
-
- return 0;
-}
-
/**
* tscan1_init_obj_data - Initialize message buffers
* @chip: Pointer to chip specific structure
can_outb(data, address);
}
-void ts7kv_write_register(unsigned data, can_ioptr_t address)
+void tscan1mmio_write_register(unsigned data, can_ioptr_t address)
{
- unsigned long addr=can_ioptr2ulong(address);
- can_ioptr_t base = can_ulong2ioptr(addr & ~0x1f);
- unsigned char nwin = 0x10;
- unsigned char savewin;
-
- can_spin_irqflags_t flags;
-
- if((addr&0x1f) > 0x1d) {
- nwin++;
- address -= 0x10;
- }
-
- can_spin_lock_irqsave(&ts7kv_win_lock,flags);
- savewin = can_inb(base+TS7KV_WIN_REG);
- if(nwin == savewin) {
- can_outb(data, address);
- }else{
- can_outb(nwin, base+TS7KV_WIN_REG);
- can_outb(data, address);
- can_outb(savewin, base+TS7KV_WIN_REG);
- }
- can_spin_unlock_irqrestore(&ts7kv_win_lock,flags);
+ can_writeb(data, address);
}
+
/**
* tscan1_read_register - Low level read register routine
* @address: memory address to read from
return can_inb(address);
}
-unsigned ts7kv_read_register(can_ioptr_t address)
+unsigned tscan1mmio_read_register(can_ioptr_t address)
{
- unsigned long addr=can_ioptr2ulong(address);
- can_ioptr_t base = can_ulong2ioptr(addr & ~0x1f);
- unsigned char nwin = 0x10;
- unsigned char savewin;
- unsigned val;
-
- can_spin_irqflags_t flags;
-
- if((addr&0x1f) > 0x1d) {
- nwin++;
- address -= 0x10;
- }
-
- can_spin_lock_irqsave(&ts7kv_win_lock,flags);
- savewin = can_inb(base+TS7KV_WIN_REG);
- if(nwin == savewin) {
- val = can_inb(address);
- }else{
- can_outb(nwin, base+TS7KV_WIN_REG);
- val = can_inb(address);
- can_outb(savewin, base+TS7KV_WIN_REG);
- }
- can_spin_unlock_irqrestore(&ts7kv_win_lock,flags);
-
- return val;
+ return can_readb(address);
}
int tscan1_register(struct hwspecops_t *hwspecops)
return 0;
}
-extern int ts7kv_register(struct hwspecops_t *hwspecops)
+int tscan1mmio_register(struct hwspecops_t *hwspecops)
{
- hwspecops->request_io = ts7kv_request_io;
- hwspecops->release_io = ts7kv_release_io;
+ hwspecops->request_io = tscan1_request_io;
+ hwspecops->release_io = tscan1_release_io;
hwspecops->reset = tscan1_reset;
- hwspecops->init_hw_data = ts7kv_init_hw_data;
- hwspecops->init_chip_data = ts7kv_init_chip_data;
+ hwspecops->init_hw_data = tscan1_init_hw_data;
+ hwspecops->init_chip_data = tscan1_init_chip_data;
hwspecops->init_obj_data = tscan1_init_obj_data;
- hwspecops->write_register = ts7kv_write_register;
- hwspecops->read_register = ts7kv_read_register;
+ hwspecops->write_register = tscan1mmio_write_register;
+ hwspecops->read_register = tscan1mmio_read_register;
hwspecops->program_irq = tscan1_program_irq;
return 0;
}
projects / lincan.git / commitdiff