+++ /dev/null
-/*-
- * Driver for Hifn HIPP-I/II chipset
- * Copyright (c) 2006 Michael Richardson <mcr@xelerance.com>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Effort sponsored by Hifn Inc.
- *
- */
-
-/*
- * Driver for various Hifn encryption processors.
- */
-#ifndef AUTOCONF_INCLUDED
-#include <linux/config.h>
-#endif
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/slab.h>
-#include <linux/wait.h>
-#include <linux/sched.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/random.h>
-#include <linux/version.h>
-#include <linux/skbuff.h>
-#include <linux/uio.h>
-#include <linux/sysfs.h>
-#include <linux/miscdevice.h>
-#include <asm/io.h>
-
-#include <cryptodev.h>
-
-#include "hifnHIPPreg.h"
-#include "hifnHIPPvar.h"
-
-#if 1
-#define DPRINTF(a...) if (hipp_debug) { \
- printk("%s: ", sc ? \
- device_get_nameunit(sc->sc_dev) : "hifn"); \
- printk(a); \
- } else
-#else
-#define DPRINTF(a...)
-#endif
-
-typedef int bus_size_t;
-
-static inline int
-pci_get_revid(struct pci_dev *dev)
-{
- u8 rid = 0;
- pci_read_config_byte(dev, PCI_REVISION_ID, &rid);
- return rid;
-}
-
-#define debug hipp_debug
-int hipp_debug = 0;
-module_param(hipp_debug, int, 0644);
-MODULE_PARM_DESC(hipp_debug, "Enable debug");
-
-int hipp_maxbatch = 1;
-module_param(hipp_maxbatch, int, 0644);
-MODULE_PARM_DESC(hipp_maxbatch, "max ops to batch w/o interrupt");
-
-static int hipp_probe(struct pci_dev *dev, const struct pci_device_id *ent);
-static void hipp_remove(struct pci_dev *dev);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
-static irqreturn_t hipp_intr(int irq, void *arg);
-#else
-static irqreturn_t hipp_intr(int irq, void *arg, struct pt_regs *regs);
-#endif
-
-static int hipp_num_chips = 0;
-static struct hipp_softc *hipp_chip_idx[HIPP_MAX_CHIPS];
-
-static int hipp_newsession(device_t, u_int32_t *, struct cryptoini *);
-static int hipp_freesession(device_t, u_int64_t);
-static int hipp_process(device_t, struct cryptop *, int);
-
-static device_method_t hipp_methods = {
- /* crypto device methods */
- DEVMETHOD(cryptodev_newsession, hipp_newsession),
- DEVMETHOD(cryptodev_freesession,hipp_freesession),
- DEVMETHOD(cryptodev_process, hipp_process),
-};
-
-static __inline u_int32_t
-READ_REG(struct hipp_softc *sc, unsigned int barno, bus_size_t reg)
-{
- u_int32_t v = readl(sc->sc_bar[barno] + reg);
- //sc->sc_bar0_lastreg = (bus_size_t) -1;
- return (v);
-}
-static __inline void
-WRITE_REG(struct hipp_softc *sc, unsigned int barno, bus_size_t reg, u_int32_t val)
-{
- writel(val, sc->sc_bar[barno] + reg);
-}
-
-#define READ_REG_0(sc, reg) READ_REG(sc, 0, reg)
-#define WRITE_REG_0(sc, reg, val) WRITE_REG(sc,0, reg, val)
-#define READ_REG_1(sc, reg) READ_REG(sc, 1, reg)
-#define WRITE_REG_1(sc, reg, val) WRITE_REG(sc,1, reg, val)
-
-static int
-hipp_newsession(device_t dev, u_int32_t *sidp, struct cryptoini *cri)
-{
- return EINVAL;
-}
-
-static int
-hipp_freesession(device_t dev, u_int64_t tid)
-{
- return EINVAL;
-}
-
-static int
-hipp_process(device_t dev, struct cryptop *crp, int hint)
-{
- return EINVAL;
-}
-
-static const char*
-hipp_partname(struct hipp_softc *sc, char buf[128], size_t blen)
-{
- char *n = NULL;
-
- switch (pci_get_vendor(sc->sc_pcidev)) {
- case PCI_VENDOR_HIFN:
- switch (pci_get_device(sc->sc_pcidev)) {
- case PCI_PRODUCT_HIFN_7855: n = "Hifn 7855";
- case PCI_PRODUCT_HIFN_8155: n = "Hifn 8155";
- case PCI_PRODUCT_HIFN_6500: n = "Hifn 6500";
- }
- }
-
- if(n==NULL) {
- snprintf(buf, blen, "VID=%02x,PID=%02x",
- pci_get_vendor(sc->sc_pcidev),
- pci_get_device(sc->sc_pcidev));
- } else {
- buf[0]='\0';
- strncat(buf, n, blen);
- }
- return buf;
-}
-
-struct hipp_fs_entry {
- struct attribute attr;
- /* other stuff */
-};
-
-
-static ssize_t
-cryptoid_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct hipp_softc *sc;
-
- sc = pci_get_drvdata(to_pci_dev (dev));
- return sprintf (buf, "%d\n", sc->sc_cid);
-}
-
-struct device_attribute hipp_dev_cryptoid = __ATTR_RO(cryptoid);
-
-/*
- * Attach an interface that successfully probed.
- */
-static int
-hipp_probe(struct pci_dev *dev, const struct pci_device_id *ent)
-{
- struct hipp_softc *sc = NULL;
- int i;
- //char rbase;
- //u_int16_t ena;
- int rev;
- //int rseg;
- int rc;
-
- DPRINTF("%s()\n", __FUNCTION__);
-
- if (pci_enable_device(dev) < 0)
- return(-ENODEV);
-
-#ifdef CONFIG_HAVE_PCI_SET_MWI
- if (pci_set_mwi(dev))
- return(-ENODEV);
-#endif
-
- if (!dev->irq) {
- printk("hifn: found device with no IRQ assigned. check BIOS settings!");
- pci_disable_device(dev);
- return(-ENODEV);
- }
-
- sc = (struct hipp_softc *) kmalloc(sizeof(*sc), GFP_KERNEL);
- if (!sc)
- return(-ENOMEM);
- memset(sc, 0, sizeof(*sc));
-
- softc_device_init(sc, "hifn-hipp", hipp_num_chips, hipp_methods);
-
- sc->sc_pcidev = dev;
- sc->sc_irq = -1;
- sc->sc_cid = -1;
- sc->sc_num = hipp_num_chips++;
-
- if (sc->sc_num < HIPP_MAX_CHIPS)
- hipp_chip_idx[sc->sc_num] = sc;
-
- pci_set_drvdata(sc->sc_pcidev, sc);
-
- spin_lock_init(&sc->sc_mtx);
-
- /*
- * Setup PCI resources.
- * The READ_REG_0, WRITE_REG_0, READ_REG_1,
- * and WRITE_REG_1 macros throughout the driver are used
- * to permit better debugging.
- */
- for(i=0; i<4; i++) {
- unsigned long mem_start, mem_len;
- mem_start = pci_resource_start(sc->sc_pcidev, i);
- mem_len = pci_resource_len(sc->sc_pcidev, i);
- sc->sc_barphy[i] = (caddr_t)mem_start;
- sc->sc_bar[i] = (ocf_iomem_t) ioremap(mem_start, mem_len);
- if (!sc->sc_bar[i]) {
- device_printf(sc->sc_dev, "cannot map bar%d register space\n", i);
- goto fail;
- }
- }
-
- //hipp_reset_board(sc, 0);
- pci_set_master(sc->sc_pcidev);
-
- /*
- * Arrange the interrupt line.
- */
- rc = request_irq(dev->irq, hipp_intr, IRQF_SHARED, "hifn", sc);
- if (rc) {
- device_printf(sc->sc_dev, "could not map interrupt: %d\n", rc);
- goto fail;
- }
- sc->sc_irq = dev->irq;
-
- rev = READ_REG_1(sc, HIPP_1_REVID) & 0xffff;
-
- {
- char b[32];
- device_printf(sc->sc_dev, "%s, rev %u",
- hipp_partname(sc, b, sizeof(b)), rev);
- }
-
-#if 0
- if (sc->sc_flags & HIFN_IS_7956)
- printf(", pll=0x%x<%s clk, %ux mult>",
- sc->sc_pllconfig,
- sc->sc_pllconfig & HIFN_PLL_REF_SEL ? "ext" : "pci",
- 2 + 2*((sc->sc_pllconfig & HIFN_PLL_ND) >> 11));
-#endif
- printf("\n");
-
- sc->sc_cid = crypto_get_driverid(softc_get_device(sc),CRYPTOCAP_F_HARDWARE);
- if (sc->sc_cid < 0) {
- device_printf(sc->sc_dev, "could not get crypto driver id\n");
- goto fail;
- }
-
-#if 0 /* cannot work with a non-GPL module */
- /* make a sysfs entry to let the world know what entry we got */
- sysfs_create_file(&sc->sc_pcidev->dev.kobj, &hipp_dev_cryptoid.attr);
-#endif
-
-#if 0
- init_timer(&sc->sc_tickto);
- sc->sc_tickto.function = hifn_tick;
- sc->sc_tickto.data = (unsigned long) sc->sc_num;
- mod_timer(&sc->sc_tickto, jiffies + HZ);
-#endif
-
-#if 0 /* no code here yet ?? */
- crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0);
-#endif
-
- return (0);
-
-fail:
- if (sc->sc_cid >= 0)
- crypto_unregister_all(sc->sc_cid);
- if (sc->sc_irq != -1)
- free_irq(sc->sc_irq, sc);
-
-#if 0
- if (sc->sc_dma) {
- /* Turn off DMA polling */
- WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
- HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
-
- pci_free_consistent(sc->sc_pcidev,
- sizeof(*sc->sc_dma),
- sc->sc_dma, sc->sc_dma_physaddr);
- }
-#endif
- kfree(sc);
- return (-ENXIO);
-}
-
-/*
- * Detach an interface that successfully probed.
- */
-static void
-hipp_remove(struct pci_dev *dev)
-{
- struct hipp_softc *sc = pci_get_drvdata(dev);
- unsigned long l_flags;
-
- DPRINTF("%s()\n", __FUNCTION__);
-
- /* disable interrupts */
- HIPP_LOCK(sc);
-
-#if 0
- WRITE_REG_1(sc, HIFN_1_DMA_IER, 0);
- HIFN_UNLOCK(sc);
-
- /*XXX other resources */
- del_timer_sync(&sc->sc_tickto);
-
- /* Turn off DMA polling */
- WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
- HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
-#endif
-
- crypto_unregister_all(sc->sc_cid);
-
- free_irq(sc->sc_irq, sc);
-
-#if 0
- pci_free_consistent(sc->sc_pcidev, sizeof(*sc->sc_dma),
- sc->sc_dma, sc->sc_dma_physaddr);
-#endif
-}
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
-static irqreturn_t hipp_intr(int irq, void *arg)
-#else
-static irqreturn_t hipp_intr(int irq, void *arg, struct pt_regs *regs)
-#endif
-{
- struct hipp_softc *sc = arg;
-
- sc = sc; /* shut up compiler */
-
- return IRQ_HANDLED;
-}
-
-static struct pci_device_id hipp_pci_tbl[] = {
- { PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7855,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
- { PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_8155,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
- { 0 }
-};
-MODULE_DEVICE_TABLE(pci, hipp_pci_tbl);
-
-static struct pci_driver hipp_driver = {
- .name = "hipp",
- .id_table = hipp_pci_tbl,
- .probe = hipp_probe,
- .remove = hipp_remove,
- /* add PM stuff here one day */
-};
-
-static int __init hipp_init (void)
-{
- struct hipp_softc *sc = NULL;
- int rc;
-
- DPRINTF("%s(%p)\n", __FUNCTION__, hipp_init);
-
- rc = pci_register_driver(&hipp_driver);
- pci_register_driver_compat(&hipp_driver, rc);
-
- return rc;
-}
-
-static void __exit hipp_exit (void)
-{
- pci_unregister_driver(&hipp_driver);
-}
-
-module_init(hipp_init);
-module_exit(hipp_exit);
-
-MODULE_LICENSE("BSD");
-MODULE_AUTHOR("Michael Richardson <mcr@xelerance.com>");
-MODULE_DESCRIPTION("OCF driver for hifn HIPP-I/II PCI crypto devices");
projects / openwrt / svn-archive / archive.git / blobdiff