Hello Gilles,
1/ Have you tested your driver on Linux 2.4?
No, therefore I remove all necessary for compilation with Linux 2.4.
2/
+++ b/ksrc/drivers/cifx/Config.in~
+++ b/ksrc/drivers/cifx/Kconfig~
+++ b/ksrc/drivers/cifx/Makefile~
+++ b/ksrc/drivers/cifx/cifx_pci.c~
We do not want these file. A simple way to avoid it (besides using diff
-x option), is to work with git, and generate your patches with git
format-patch.
I'm sorry I didn't see this file. It's clean now.
3/ I did all correction. I give you my new patch in attached file.
I have few remarks :
The code with #ifdef DEBUG is also questionable, it will tend to bitrot
since nobody will think to enable it.
=> I disagree with you, it could be helpful if somebody have a problem
and want to debug quickly.
But I can remove it if it's not standard to xenomai kernel.
I think you are not convinced yet that "code is the best documentation"
=> Yes, you right it's because I worked long time on safety project (for
me it's a habit) .
Moreover I thunk it could be helpful in an open source project, if
somebody want to more easily understand code.
The coding style is a bit indigest
=> I agree with you but that the price to be compliant with
checkpatch.pl... limitation to 80 characters per line is difficult for me.
If you saw some better thing to do, don't hesitate ;-) ! I tried to my
best !
Thank you for your help,
Hilscher France
12, rue du 35ème Régiment d'Aviation
Miniparc du Chêne
69500 BRON
France
Tél. : +33 (0) 4 72 37 98 40
Fax : +33 (0) 4 78 26 83 27
http://www.hilscher.fr
HILSCHER FRANCE Jérôme Poncin
[email protected]
Ingénieur Développement Logiciel
Tél. : +33 (0) 4 72 37 98 44
-------------- next part --------------
diff --git a/include/asm-generic/pci_ids.h b/include/asm-generic/pci_ids.h
index d298bf4..3f8d7cc 100644
--- a/include/asm-generic/pci_ids.h
+++ b/include/asm-generic/pci_ids.h
@@ -40,4 +40,45 @@
#define PCI_DEVICE_ID_PLX_9056 0x9056
#endif
+/* cifx */
+#ifndef PCI_VENDOR_ID_HILSCHER
+#define PCI_VENDOR_ID_HILSCHER 0x15CF
+#endif
+
+#ifndef PCI_DEVICE_ID_HILSCHER_NETX
+#define PCI_DEVICE_ID_HILSCHER_NETX 0x0000
+#endif
+
+#ifndef PCI_DEVICE_ID_HILSCHER_NETPLC
+#define PCI_DEVICE_ID_HILSCHER_NETPLC 0x0010
+#endif
+
+#ifndef PCI_DEVICE_ID_HILSCHER_NETJACK
+#define PCI_DEVICE_ID_HILSCHER_NETJACK 0x0020
+#endif
+
+#ifndef PCI_SUBDEVICE_ID_NXSB_PCA
+#define PCI_SUBDEVICE_ID_NXSB_PCA 0x3235
+#endif
+
+#ifndef PCI_SUBDEVICE_ID_NXPCA
+#define PCI_SUBDEVICE_ID_NXPCA 0x3335
+#endif
+
+#ifndef PCI_SUBDEVICE_ID_NETPLC_RAM
+#define PCI_SUBDEVICE_ID_NETPLC_RAM 0x0000
+#endif
+
+#ifndef PCI_SUBDEVICE_ID_NETPLC_FLASH
+#define PCI_SUBDEVICE_ID_NETPLC_FLASH 0x0001
+#endif
+
+#ifndef PCI_SUBDEVICE_ID_NETJACK_RAM
+#define PCI_SUBDEVICE_ID_NETJACK_RAM 0x0000
+#endif
+
+#ifndef PCI_SUBDEVICE_ID_NETJACK_FLASH
+#define PCI_SUBDEVICE_ID_NETJACK_FLASH 0x0001
+#endif
+
#endif /* _XENO_ASM_GENERIC_PCI_IDS_H */
diff --git a/ksrc/drivers/cifx/Kconfig b/ksrc/drivers/cifx/Kconfig
new file mode 100644
index 0000000..715a45e
--- /dev/null
+++ b/ksrc/drivers/cifx/Kconfig
@@ -0,0 +1,11 @@
+menu "Hilscher cifX driver"
+
+config XENO_DRIVERS_CIFX
+ depends on XENO_SKIN_RTDM
+ tristate "Hilscher cifX"
+ help
+
+ This driver provides Hilscher cifX
+ over RTDM.
+
+endmenu
diff --git a/ksrc/drivers/cifx/Makefile b/ksrc/drivers/cifx/Makefile
new file mode 100644
index 0000000..42550bd
--- /dev/null
+++ b/ksrc/drivers/cifx/Makefile
@@ -0,0 +1,13 @@
+ifneq ($(VERSION).$(PATCHLEVEL),2.4)
+
+# Makefile frag for Linux v2.6 and v3.x
+
+EXTRA_CFLAGS += -D__IN_XENOMAI__ -Iinclude/xenomai -Idrivers/xenomai/cifx
+
+obj-$(CONFIG_XENO_DRIVERS_CIFX) += xeno_cifx_pci.o
+
+xeno_cifx_pci-y := cifx_pci.o
+
+xeno_cifx_pci-$(CONFIG_XENO_DRIVERS_RTIPC_CIFX) += cifx_pci.o
+
+endif
diff --git a/ksrc/drivers/cifx/cifx_pci.c b/ksrc/drivers/cifx/cifx_pci.c
new file mode 100644
index 0000000..2ddac39
--- /dev/null
+++ b/ksrc/drivers/cifx/cifx_pci.c
@@ -0,0 +1,813 @@
+/*
+ * Copyright (C) 2013 Hilscher France (JP) <www.hilscher.fr>
+ *
+ * Xenomai is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Xenomai 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 Xenomai; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/io.h>
+#include <linux/mman.h>
+
+#include <asm-generic/xenomai/pci_ids.h>
+
+#include <rtdm/rtdm_driver.h>
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("RTDM board driver for CifX cards");
+MODULE_AUTHOR("Hilscher France (JP) <www.hilscher.fr>");
+
+#define DPM_HOST_INT_EN0 0xfff0
+#define DPM_HOST_INT_STAT0 0xffe0
+#define PLX_GPIO_OFFSET 0x15
+#define PLX_TIMING_OFFSET 0x0a
+
+#define DPM_HOST_INT_MASK 0xe600ffff
+#define DPM_HOST_INT_GLOBAL_EN 0x80000000
+#define PLX_GPIO_DATA0_MASK 0x00000004
+#define PLX_GPIO_DATA1_MASK 0x00000020
+
+#define NX_PCA_PCI_8_BIT_DPM_MODE 0x5431F962
+#define NX_PCA_PCI_16_BIT_DPM_MODE 0x4073F8E2
+#define NX_PCA_PCI_32_BIT_DPM_MODE 0x40824122
+
+/* Number of bar */
+/* points to the DPM -> netX, netPLC, netJACK */
+#define DPM_BAR 0
+/* points to the optional extended memory */
+#define EXT_MEM_BAR 1
+/* points to the DPM -> netXPLX */
+#define PLX_DPM_BAR 2
+/* timing config register */
+#define PXA_PLX_BAR 0
+
+/* Index of io_info structure's memory array */
+/* first mapping describes DPM */
+#define DPM_INDEX 0
+/* second mapping describes extended memory */
+#define EXT_MEM_INDEX 1
+
+#define MAX_MAPS 2
+
+#define MEM_PHYS 1
+
+#define DRIVER_NAME "rtdm_cifx"
+#define PERIPHERAL_NAME "cifx"
+#define PROVIDER_NAME "Hilscher"
+
+/* name of a NXSB-PCA or NXPCA-PCI card */
+#define CIFX_RTDM_PLX_CARD_NAME "netx_plx"
+/* name of a cifX PCI card */
+#define CIFX_RTDM_CARD_NAME "netx"
+/* name of a netPLC PCI card */
+#define CIFX_RTDM_NETPLC_CARD_NAME "netplc"
+/* name of a netJACK PCI card */
+#define CIFX_RTDM_NETJACK_CARD_NAME "netjack"
+
+struct pxa_dev_info {
+ uint32_t __iomem *plx;
+ uint8_t dpm_mode;
+ uint32_t plx_timing;
+};
+
+struct io_mem {
+ uint32_t addr;
+ uint32_t size;
+ int32_t memtype;
+ void __iomem *internal_addr;
+};
+
+struct io_info {
+ struct io_mem mem[MAX_MAPS];
+ int32_t irq;
+ bool irq_enable;
+ bool irq_registered;
+ rtdm_irq_t irq_handle;
+ void *priv;
+};
+
+struct io_map_mem {
+ uint32_t phys_addr;
+ void **virt_addr;
+ uint32_t length;
+};
+
+static int cifx_pxa_set_plx_timing(struct rtdm_device *info);
+static int cifx_pxa_get_plx_timing(struct rtdm_device *info);
+static int cifx_pxa_get_dpm_mode(struct rtdm_device *info);
+
+static int cifx_pci_open(struct rtdm_dev_context *context,
+ rtdm_user_info_t *user_info, int oflags);
+static int cifx_pci_close(struct rtdm_dev_context *context,
+ rtdm_user_info_t *user_info);
+static ssize_t cifx_pci_read(struct rtdm_dev_context *context,
+ rtdm_user_info_t *user_info, void *buf,
+ size_t nbyte);
+static ssize_t cifx_pci_write(struct rtdm_dev_context *context,
+ rtdm_user_info_t *user_info, const void *buf,
+ size_t nbyte);
+
+static int cifx_pci_probe(struct pci_dev *dev, const struct pci_device_id *id);
+static void cifx_pci_remove(struct pci_dev *dev);
+
+/* Number or cifx found and open */
+static int32_t cifx_num;
+
+/* RTDM Device information structure */
+static const struct rtdm_device __initdata cifx_device_tmpl = {
+ .struct_version = RTDM_DEVICE_STRUCT_VER,
+
+ .device_flags = RTDM_NAMED_DEVICE,
+ .context_size = 0,
+ .device_name = "",
+
+ .open_nrt = cifx_pci_open,
+
+ .ops = {
+ .close_nrt = cifx_pci_close,
+
+ .read_nrt = cifx_pci_read,
+ .write_nrt = cifx_pci_write,
+
+ .ioctl_rt = NULL,
+ .ioctl_nrt = NULL,
+
+ .read_rt = NULL,
+ .write_rt = NULL,
+ },
+
+ .device_class = RTDM_CLASS_EXPERIMENTAL,
+ .device_sub_class = RTDM_SUBCLASS_GENERIC,
+ .profile_version = 1,
+ .driver_name = DRIVER_NAME,
+ .driver_version = RTDM_DRIVER_VER(1, 0, 0),
+ .provider_name = PROVIDER_NAME,
+};
+
+/* Device table */
+static DEFINE_PCI_DEVICE_TABLE(cifx_pci_tbl) = {
+ {PCI_VDEVICE(PCI_VENDOR_ID_HILSCHER, PCI_DEVICE_ID_HILSCHER_NETX)},
+ {PCI_VDEVICE(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9030),
+ .subvendor = PCI_VENDOR_ID_PLX,
+ .subdevice = PCI_SUBDEVICE_ID_NXSB_PCA,
+ },
+ {PCI_VDEVICE(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9030),
+ .subvendor = PCI_VENDOR_ID_PLX,
+ .subdevice = PCI_SUBDEVICE_ID_NXPCA,
+ },
+ {PCI_VDEVICE(PCI_VENDOR_ID_HILSCHER, PCI_DEVICE_ID_HILSCHER_NETPLC),
+ .subvendor = PCI_VENDOR_ID_HILSCHER,
+ .subdevice = PCI_SUBDEVICE_ID_NETPLC_RAM,
+ },
+ {PCI_VDEVICE(PCI_VENDOR_ID_HILSCHER, PCI_DEVICE_ID_HILSCHER_NETPLC),
+ .subvendor = PCI_VENDOR_ID_HILSCHER,
+ .subdevice = PCI_SUBDEVICE_ID_NETPLC_FLASH,
+ },
+ {PCI_VDEVICE(PCI_VENDOR_ID_HILSCHER, PCI_DEVICE_ID_HILSCHER_NETJACK),
+ .subvendor = PCI_VENDOR_ID_HILSCHER,
+ .subdevice = PCI_SUBDEVICE_ID_NETJACK_RAM,
+ },
+ {PCI_VDEVICE(PCI_VENDOR_ID_HILSCHER, PCI_DEVICE_ID_HILSCHER_NETJACK),
+ .subvendor = PCI_VENDOR_ID_HILSCHER,
+ .subdevice = PCI_SUBDEVICE_ID_NETJACK_FLASH,
+ },
+ { 0,}
+};
+
+/* RTDM cifX Driver */
+static struct pci_driver cifx_pci_driver = {
+ .name = "cifx",
+ .id_table = cifx_pci_tbl,
+ .probe = cifx_pci_probe,
+ .remove = cifx_pci_remove,
+};
+
+/*
+ * cifx_pxa_set_plx_timing
+ * Set plx timing
+ */
+static int cifx_pxa_set_plx_timing(struct rtdm_device *info)
+{
+ struct pxa_dev_info *pxa_info =
+ (struct pxa_dev_info *)((struct io_info *)info->device_data)->priv;
+ uint32_t __iomem *plx_timing;
+
+ if (pxa_info == NULL)
+ return -ENODEV;
+
+ plx_timing = pxa_info->plx + PLX_TIMING_OFFSET;
+ *plx_timing = pxa_info->plx_timing;
+
+ return 0;
+}
+
+/*
+ * cifx_pxa_get_plx_timing
+ * Get plx timing
+ */
+static int cifx_pxa_get_plx_timing(struct rtdm_device *info)
+{
+ struct pxa_dev_info *pxa_info =
+ (struct pxa_dev_info *)((struct io_info *)info->device_data)->priv;
+
+ if (pxa_info == NULL)
+ return -ENODEV;
+
+ switch (pxa_info->dpm_mode) {
+ case 8:
+ pxa_info->plx_timing = NX_PCA_PCI_8_BIT_DPM_MODE;
+ break;
+ case 16:
+ pxa_info->plx_timing = NX_PCA_PCI_16_BIT_DPM_MODE;
+ break;
+ case 32:
+ pxa_info->plx_timing = NX_PCA_PCI_32_BIT_DPM_MODE;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
+ * cifx_pxa_get_dpm_mode
+ * Get dpm mode
+ */
+static int cifx_pxa_get_dpm_mode(struct rtdm_device *info)
+{
+ struct pxa_dev_info *pxa_info =
+ (struct pxa_dev_info *)((struct io_info *)info->device_data)->priv;
+ uint32_t __iomem *plx_gpio;
+
+ if (pxa_info == NULL)
+ return -ENODEV;
+
+ plx_gpio = pxa_info->plx + PLX_GPIO_OFFSET;
+
+ if ((*plx_gpio & PLX_GPIO_DATA0_MASK)
+ && ~(*plx_gpio & PLX_GPIO_DATA1_MASK))
+ pxa_info->dpm_mode = 8;
+ else if (~(*plx_gpio & PLX_GPIO_DATA0_MASK)
+ && (*plx_gpio & PLX_GPIO_DATA1_MASK))
+ pxa_info->dpm_mode = 32;
+ else if (~(*plx_gpio & PLX_GPIO_DATA0_MASK)
+ && ~(*plx_gpio & PLX_GPIO_DATA1_MASK))
+ pxa_info->dpm_mode = 16;
+ else
+ return -EINVAL;
+
+ return 0;
+}
+
+/*
+ * cifx_pci_open
+ * Open RTDM cifx pci driver
+ */
+static int cifx_pci_open(struct rtdm_dev_context *context,
+ rtdm_user_info_t *user_info, int oflags)
+{
+ return 0;
+}
+
+/*
+ * cifx_pci_close
+ * Close RTDM cifx pci driver
+ */
+static int cifx_pci_close(struct rtdm_dev_context *context,
+ rtdm_user_info_t *user_info)
+{
+ return 0;
+}
+
+/*
+ * cifx_pci_read
+ * Read
+ */
+static ssize_t cifx_pci_read(struct rtdm_dev_context *context,
+ rtdm_user_info_t *user_info, void *buf,
+ size_t nbyte)
+{
+ struct rtdm_device *info = (struct rtdm_device *)context->device;
+
+ if (nbyte > sizeof(struct io_info)) {
+#ifdef DEBUG
+ rtdm_printk
+ ("cifx rtdm driver error : data user size too big\n");
+#endif /* DEBUG */
+
+ return 0;
+ }
+
+ /* Copy data information for userland */
+ if (rtdm_safe_copy_to_user(user_info, buf,
+ ((struct io_info *)info->device_data),
+ nbyte)) {
+#ifdef DEBUG
+ rtdm_printk
+ ("cifx rtdm driver error : can't copy data from driver\n");
+#endif /* DEBUG */
+ }
+
+ return nbyte;
+}
+
+/*
+ * cifx_pci_write
+ * write
+ */
+static ssize_t cifx_pci_write(struct rtdm_dev_context *context,
+ rtdm_user_info_t *user_info, const void *buf,
+ size_t nbyte)
+{
+ struct io_map_mem map_mem;
+ int ret;
+
+ if (nbyte > sizeof(struct io_map_mem)) {
+#ifdef DEBUG
+ rtdm_printk
+ ("cifx rtdm driver error : data user size too big\n");
+#endif /* DEBUG */
+
+ return 0;
+ }
+ if (nbyte == sizeof(struct io_map_mem)) {
+ /* Copy data information for Kernel */
+ if (rtdm_safe_copy_from_user(user_info, &map_mem, buf, nbyte)) {
+ nbyte = 0;
+
+#ifdef DEBUG
+ rtdm_printk(
+ "cifx rtdm driver error : can't copy data from driver\n");
+#endif /* DEBUG */
+ } else {
+ if (*map_mem.virt_addr == NULL) {
+ /* Map physical on virtual memory */
+ ret = rtdm_iomap_to_user(user_info,
+ (phys_addr_t) map_mem.
+ phys_addr,
+ (size_t) map_mem.
+ length,
+ (PROT_READ |
+ PROT_WRITE),
+ map_mem.virt_addr,
+ NULL, NULL);
+
+ if (ret != 0) {
+ nbyte = 0;
+
+#ifdef DEBUG
+ switch (ret) {
+ case -EINVAL:
+ rtdm_printk(
+"cifx rtdm driver error : an invalid start address, size, or destination address
was passed\n");
+ break;
+ case -ENOMEM:
+ rtdm_printk(
+"cifx rtdm driver error : there is insufficient free memory or the limit of memory
mapping for the user process was reached\n");
+ break;
+ case -EAGAIN:
+ rtdm_printk(
+"cifx rtdm driver error : too much memory has been already locked by the user
process\n");
+ break;
+ case -EPERM:
+ rtdm_printk(
+ "cifx rtdm driver error : an illegal invocation environment is
detected\n");
+ break;
+ default:
+ rtdm_printk(
+ "cifx rtdm driver error : rtdm_safe_copy_from_user
error\n");
+ break;
+ }
+#endif /* DEBUG */
+ }
+ } else {
+ /* Unap virtual memory */
+ ret = rtdm_munmap(user_info, *map_mem.virt_addr,
+ (size_t) map_mem.length);
+
+ if (ret != 0) {
+ nbyte = 0;
+
+#ifdef DEBUG
+ switch (ret) {
+ case -EINVAL:
+ rtdm_printk(
+ "cifx rtdm driver error : an invalid address or size was
passed\n");
+ break;
+ case -EPERM:
+ rtdm_printk(
+ "cifx rtdm driver error : an illegal invocation environment is
detected\n");
+ break;
+ default:
+ rtdm_printk(
+ "cifx rtdm driver error : rtdm_safe_copy_from_user
error\n");
+ break;
+ }
+#endif /* DEBUG */
+ }
+ }
+ }
+ } else {
+ /* Error nothing to do */
+ nbyte = 0;
+ }
+
+ return nbyte;
+}
+
+static int cifx_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ struct rtdm_device *info = NULL;
+ struct io_info_t *device_data = NULL;
+ int32_t bar;
+ int32_t ret;
+
+ /* Allocate device driver structure */
+ info = rtdm_malloc(sizeof(struct rtdm_device));
+
+ if (info == NULL) {
+#ifdef DEBUG
+ rtdm_printk("cifx rtdm driver error : rtdm_malloc error\n");
+#endif /* DEBUG */
+
+ return -ENOMEM;
+ }
+
+ ret = pci_enable_device(dev);
+ if (ret != 0) {
+#ifdef DEBUG
+ rtdm_printk(
+ "cifx rtdm driver error : pci_enable_device error : %i\n",
+ ret);
+#endif /* DEBUG */
+
+ goto out_free;
+ }
+
+ ret = pci_request_regions(dev, DRIVER_NAME);
+ if (ret != 0) {
+#ifdef DEBUG
+ rtdm_printk(
+ "cifx rtdm driver error : pci_request_regions error : %i\n",
+ ret);
+#endif /* DEBUG */
+
+ goto out_disable;
+ }
+
+ /* Initialize structure with default values */
+ memcpy(info, &cifx_device_tmpl, sizeof(*info));
+
+ info->device_id = id->device;
+ snprintf((char *)info->device_name, RTDM_MAX_DEVNAME_LEN, "cifx%i",
+ cifx_num);
+ info->proc_name = info->device_name;
+
+ switch (id->device) {
+ case PCI_DEVICE_ID_HILSCHER_NETX:
+ bar = DPM_BAR;
+ info->peripheral_name = CIFX_RTDM_CARD_NAME;
+ break;
+ case PCI_DEVICE_ID_HILSCHER_NETPLC:
+ bar = DPM_BAR;
+ info->peripheral_name = CIFX_RTDM_NETPLC_CARD_NAME;
+ break;
+ case PCI_DEVICE_ID_HILSCHER_NETJACK:
+ bar = DPM_BAR;
+ info->peripheral_name = CIFX_RTDM_NETJACK_CARD_NAME;
+ break;
+ default:
+ bar = PLX_DPM_BAR;
+ info->peripheral_name = CIFX_RTDM_PLX_CARD_NAME;
+ break;
+ }
+
+ info->device_data = NULL;
+
+ /* Allocate specific data strcuture for device */
+ device_data = rtdm_malloc(sizeof(struct io_info));
+
+ if (device_data == NULL) {
+#ifdef DEBUG
+ rtdm_printk("cifx rtdm driver error : rtdm_malloc error\n");
+#endif /* DEBUG */
+
+ goto out_release;
+ }
+
+ memset(device_data, 0, sizeof(struct io_info));
+
+ /* BAR 0 or 2 points to the card's dual port memory */
+ ((struct io_info *)device_data)->mem[DPM_INDEX].addr =
+ pci_resource_start(dev, bar);
+
+ if (((struct io_info *)device_data)->mem[DPM_INDEX].addr == 0) {
+#ifdef DEBUG
+ rtdm_printk
+ ("cifx rtdm driver error : pci_resource_start error\n");
+#endif /* DEBUG */
+
+ goto out_release;
+ }
+
+ ((struct io_info *)device_data)->mem[DPM_INDEX].internal_addr =
+ ioremap_nocache(pci_resource_start(dev, bar),
+ pci_resource_len(dev, bar));
+
+ if (((struct io_info *)device_data)->mem[DPM_INDEX].internal_addr
+ == 0) {
+#ifdef DEBUG
+ rtdm_printk("cifx rtdm driver error : ioremap_nocache error\n");
+#endif /* DEBUG */
+
+ goto out_release;
+ }
+
+ dev_info(&dev->dev, "DPM at %08lX\n",
+ (long unsigned int)((struct io_info *)device_data)->
+ mem[DPM_INDEX].addr);
+ ((struct io_info *)device_data)->mem[DPM_INDEX].size =
+ pci_resource_len(dev, bar);
+ ((struct io_info *)device_data)->mem[DPM_INDEX].memtype = MEM_PHYS;
+
+ /* map extended mem (BAR 1 points to the extended memory) */
+ ((struct io_info *)device_data)->mem[EXT_MEM_INDEX].addr =
+ pci_resource_start(dev, EXT_MEM_BAR);
+
+ /* extended memory is optional, so don't care if it is not present */
+ if (((struct io_info *)device_data)->mem[EXT_MEM_INDEX].addr != 0) {
+ ((struct io_info *)device_data)->mem[EXT_MEM_INDEX].
+ internal_addr =
+ ioremap_nocache(pci_resource_start(dev, EXT_MEM_BAR),
+ pci_resource_len(dev, EXT_MEM_BAR));
+
+ if (((struct io_info *)device_data)->mem[EXT_MEM_INDEX].
+ internal_addr == 0) {
+#ifdef DEBUG
+ rtdm_printk(
+ "cifx rtdm driver error : ioremap_nocache error\n");
+#endif /* DEBUG */
+
+ goto out_unmap;
+ }
+
+ dev_info(&dev->dev, "extended memory at %08lX\n",
+ (long unsigned int)((struct io_info *)device_data)->
+ mem[EXT_MEM_INDEX].addr);
+ ((struct io_info *)device_data)->mem[EXT_MEM_INDEX].size =
+ pci_resource_len(dev, EXT_MEM_BAR);
+ ((struct io_info *)device_data)->mem[EXT_MEM_INDEX].memtype =
+ MEM_PHYS;
+ }
+
+ if ((id->device == PCI_DEVICE_ID_HILSCHER_NETX)
+ || (id->device == PCI_DEVICE_ID_HILSCHER_NETPLC)
+ || (id->device == PCI_DEVICE_ID_HILSCHER_NETJACK)) {
+ /* make sure all interrupts are disabled */
+ iowrite32(0,
+ ((struct io_info *)device_data)->mem[DPM_INDEX].
+ internal_addr + DPM_HOST_INT_EN0);
+ ((struct io_info *)device_data)->priv = NULL;
+ } else if (id->subdevice == PCI_SUBDEVICE_ID_NXPCA) {
+ /* map PLX registers */
+ struct pxa_dev_info *pxa_info =
+ (struct pxa_dev_info *)
+ rtdm_malloc(sizeof(struct pxa_dev_info));
+
+ if (pxa_info == NULL) {
+#ifdef DEBUG
+ rtdm_printk
+ ("cifx rtdm driver error : rtdm_malloc error\n");
+#endif /* DEBUG */
+
+ goto out_unmap;
+ }
+
+ ((struct io_info *)device_data)->priv = pxa_info;
+
+ /* set PXA PLX Timings */
+ pxa_info->plx =
+ ioremap_nocache(pci_resource_start(dev, PXA_PLX_BAR),
+ pci_resource_len(dev, PXA_PLX_BAR));
+
+ if (pxa_info->plx == NULL)
+ goto out_unmap;
+ if (cifx_pxa_get_dpm_mode(info))
+ goto out_unmap_plx;
+ if (cifx_pxa_get_plx_timing(info))
+ goto out_unmap_plx;
+ if (cifx_pxa_set_plx_timing(info))
+ goto out_unmap_plx;
+ } else {
+ struct pxa_dev_info *pxa_info =
+ (struct pxa_dev_info *)
+ rtdm_malloc(sizeof(struct pxa_dev_info));
+
+ if (pxa_info == NULL) {
+#ifdef DEBUG
+ rtdm_printk
+ ("cifx rtdm driver error : rtdm_malloc error\n");
+#endif /* DEBUG */
+
+ goto out_free_pxa;
+ }
+
+ ((struct pxa_dev_info *)pxa_info)->plx = NULL;
+ ((struct pxa_dev_info *)pxa_info)->plx_timing = 0;
+ ((struct pxa_dev_info *)pxa_info)->dpm_mode = 0;
+ ((struct io_info *)device_data)->priv = pxa_info;
+ }
+
+ /* Initialize irq data */
+ ((struct io_info *)device_data)->irq = dev->irq;
+ ((struct io_info *)device_data)->irq_enable = 0;
+ ((struct io_info *)device_data)->irq_registered = 0;
+
+ info->device_data = device_data;
+
+ /* Register RTDM device driver */
+ ret = rtdm_dev_register(info);
+ if (ret != 0) {
+#ifdef DEBUG
+ switch (ret) {
+ case -EINVAL:
+ rtdm_printk(
+"cifx rtdm driver error : rtdm_dev_register error : the device structure contains
invalid entries. Check kernel log in this case\n");
+ break;
+ case -ENOMEM:
+ rtdm_printk(
+"cifx rtdm driver error : rtdm_dev_register error : the context for an exclusive
device cannot be allocated\n");
+ break;
+ case -EEXIST:
+ rtdm_printk(
+"cifx rtdm driver error : rtdm_dev_register error : the specified device name of
protocol ID is already in use\n");
+ break;
+ case -EAGAIN:
+ rtdm_printk(
+"cifx rtdm driver error : rtdm_dev_register error : some /proc entry cannot be
created\n");
+ break;
+ default:
+ rtdm_printk(
+"cifx rtdm driver error : rtdm_dev_register error\n");
+ break;
+ }
+#endif /* DEBUG */
+
+ if (id->subdevice != PCI_SUBDEVICE_ID_NXPCA)
+ goto out_unmap;
+ else
+ goto out_unmap_plx;
+ }
+
+ pci_set_drvdata(dev, info);
+
+ if (id->device == PCI_DEVICE_ID_HILSCHER_NETX)
+ dev_info(&dev->dev, "registered CifX card\n");
+ else if (id->device == PCI_DEVICE_ID_HILSCHER_NETPLC)
+ dev_info(&dev->dev, "registered netPLC card\n");
+ else if (id->device == PCI_DEVICE_ID_HILSCHER_NETJACK)
+ dev_info(&dev->dev, "registered netJACK card\n");
+ else if (id->subdevice == PCI_SUBDEVICE_ID_NXSB_PCA)
+ dev_info(&dev->dev, "registered NXSB-PCA adapter card\n");
+ else {
+ struct pxa_dev_info *pxa_info =
+ (struct pxa_dev_info *)((struct io_info *)info->
+ device_data)->priv;
+ dev_info(&dev->dev,
+ "registered NXPCA-PCI adapter card in %d bit mode\n",
+ ((struct pxa_dev_info *)pxa_info)->dpm_mode);
+ }
+
+ cifx_num++;
+
+ return 0;
+
+ out_unmap_plx:
+ iounmap(((struct pxa_dev_info *)(((struct io_info *)info->device_data)->
+ priv))->plx);
+
+ out_free_pxa:
+ rtdm_free(((struct io_info *)info->device_data)->priv);
+
+ out_unmap:
+ iounmap(((struct io_info *)info->device_data)->mem[DPM_INDEX].
+ internal_addr);
+ if (((struct io_info *)info->device_data)->mem[EXT_MEM_INDEX].
+ internal_addr != 0)
+ iounmap(((struct io_info *)info->device_data)->
+ mem[EXT_MEM_INDEX].internal_addr);
+
+ out_release:
+ pci_release_regions(dev);
+
+ out_disable:
+ pci_disable_device(dev);
+
+ out_free:
+ if (info->device_data != NULL)
+ rtdm_free(info->device_data);
+
+ rtdm_free(info);
+
+ return -ENODEV;
+}
+
+static void cifx_pci_remove(struct pci_dev *dev)
+{
+ struct rtdm_device *info = pci_get_drvdata(dev);
+ struct io_info *device_data = (struct io_info *)info->device_data;
+ struct pxa_dev_info *pxa_info =
+ (struct pxa_dev_info *)device_data->priv;
+ int32_t ret;
+
+ if (info->device_data == NULL) {
+#ifdef DEBUG
+ rtdm_printk
+ ("cifx rtdm driver error : device_data NULL pointer\n");
+#endif /* DEBUG */
+ return;
+ }
+
+ if (pxa_info != NULL) {
+ /* Disable all interrupts */
+ iowrite32(0,
+ ((struct io_info *)device_data)->mem[DPM_INDEX].
+ internal_addr + DPM_HOST_INT_EN0);
+
+ if (pxa_info->plx != NULL)
+ iounmap((void *)pxa_info->plx);
+
+ rtdm_free((void *)pxa_info);
+ }
+
+ /* Unregister RTDM device driver */
+ ret = rtdm_dev_unregister(info, 1000);
+ if (ret != 0) {
+#ifdef DEBUG
+ switch (ret) {
+ case -ENODEV:
+ rtdm_printk(
+"cifx rtdm driver error : rtdm_dev_unregister error : the device was not
registered\n");
+ break;
+ case -EAGAIN:
+ rtdm_printk(
+"cifx rtdm driver error : rtdm_dev_unregister error : the device is busy with open
instances and 0 has been passed for poll_delay\n");
+ break;
+ default:
+ rtdm_printk(
+"cifx rtdm driver error : rtdm_dev_unregister error\n");
+ break;
+ }
+#endif /* DEBUG */
+
+ return;
+ }
+
+ pci_release_regions(dev);
+ pci_disable_device(dev);
+ pci_set_drvdata(dev, NULL);
+
+ iounmap(((struct io_info *)device_data)->mem[DPM_INDEX].internal_addr);
+ if (((struct io_info *)device_data)->mem[EXT_MEM_INDEX].internal_addr !=
+ 0)
+ iounmap(((struct io_info *)device_data)->mem[EXT_MEM_INDEX].
+ internal_addr);
+
+ /* Release structure memory allocation */
+ rtdm_free(info->device_data);
+ rtdm_free(info);
+
+ if (cifx_num > 0)
+ cifx_num--;
+}
+
+static int __init cifx_pci_init(void)
+{
+ cifx_num = 0;
+
+ return pci_register_driver(&cifx_pci_driver);
+}
+
+static void __exit cifx_pci_exit(void)
+{
+ pci_unregister_driver(&cifx_pci_driver);
+}
+
+module_init(cifx_pci_init);
+module_exit(cifx_pci_exit);
+
+/* End of file : cifx_pci.c */
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