From: Eliot Blennerhassett <linux(a)audioscience.com>
Signed-off-by: Eliot Blennerhassett <eblennerhassett(a)audioscience.com>
diff --git a/pci/asihpi/hpioctl.c b/pci/asihpi/hpioctl.c
new file mode 100644
index 0000000..5192db3
--- /dev/null
+++ b/pci/asihpi/hpioctl.c
@@ -0,0 +1,440 @@
+/*******************************************************************************
+
+ AudioScience HPI driver
+ Copyright (C) 1997-2003 AudioScience Inc. <support(a)audioscience.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of version 2 of the GNU General Public License as
+ published by the Free Software Foundation;
+
+ This program 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 this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+Common Linux HPI ioctl and module probe/remove functions
+*******************************************************************************/
+#define SOURCEFILE_NAME "hpioctl.c"
+
+#include "hpi.h"
+#include "hpidebug.h"
+#include "hpimsgx.h"
+#include "hpioctl.h"
+
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/moduleparam.h>
+#include <asm/uaccess.h>
+#include <linux/stringify.h>
+
+#ifndef HPIMOD_DEFAULT_BUF_SIZE
+# define HPIMOD_DEFAULT_BUF_SIZE 192000
+#endif
+
+#ifdef MODULE_FIRMWARE
+MODULE_FIRMWARE("asihpi/dsp5000.bin");
+MODULE_FIRMWARE("asihpi/dsp6200.bin");
+MODULE_FIRMWARE("asihpi/dsp6205.bin");
+MODULE_FIRMWARE("asihpi/dsp6400.bin");
+MODULE_FIRMWARE("asihpi/dsp6600.bin");
+MODULE_FIRMWARE("asihpi/dsp8700.bin");
+MODULE_FIRMWARE("asihpi/dsp8900.bin");
+#endif
+
+static int bufsize = HPIMOD_DEFAULT_BUF_SIZE;
+module_param(bufsize, int,
+ S_IRUGO
+);
+/* Allow the debug level to be changed after module load.
+ E.g. echo 2 > /sys/module/asihpi/parameters/hpiDebugLevel
+*/
+module_param(hpiDebugLevel, int,
+ S_IRUGO | S_IWUSR
+);
+
+/* List of adapters found */
+static struct hpi_adapter adapters[HPI_MAX_ADAPTERS];
+
+/* Wrapper function to HPI_Message to enable dumping of the
+ message and response types.
+*/
+static void HPI_MessageF(
+ struct hpi_message *phm,
+ struct hpi_response *phr,
+ struct file *file
+)
+{
+ int nAdapter = phm->wAdapterIndex;
+
+ if ((nAdapter >= HPI_MAX_ADAPTERS || nAdapter < 0) &&
+ (phm->wObject != HPI_OBJ_SUBSYSTEM))
+ phr->wError = HPI_ERROR_INVALID_OBJ_INDEX;
+ else
+ HPI_MessageEx(phm, phr, file);
+}
+
+/* This is called from hpifunc.c functions, called by ALSA
+ * (or other kernel process) In this case there is no file descriptor
+ * available for the message cache code
+ */
+void HPI_Message(
+ struct hpi_message *phm,
+ struct hpi_response *phr
+)
+{
+ HPI_MessageF(phm, phr, HOWNER_KERNEL);
+}
+
+EXPORT_SYMBOL(HPI_Message);
+/* export HPI_Message for radio-asihpi */
+
+int asihpi_hpi_release(
+ struct file *file
+)
+{
+ struct hpi_message hm;
+ struct hpi_response hr;
+
+/* HPI_DEBUG_LOG(INFO,"hpi_release file %p, pid %d\n", file, current->pid); */
+ /* close the subsystem just in case the application forgot to. */
+ HPI_InitMessage(&hm, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_CLOSE);
+ HPI_MessageEx(&hm, &hr, file);
+ return 0;
+}
+
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 11)
+long asihpi_hpi_ioctl(
+ struct file *file,
+ unsigned int cmd,
+ unsigned long arg
+)
+#else
+int asihpi_hpi_ioctl(
+ struct inode *inode,
+ struct file *file,
+ unsigned int cmd,
+ unsigned long arg
+)
+#endif
+{
+ struct hpi_ioctl_linux __user *phpi_ioctl_data;
+ void __user *phm;
+ void __user *phr;
+ struct hpi_message hm;
+ struct hpi_response hr;
+ u32 uncopied_bytes;
+ struct hpi_adapter *pa;
+
+ if (cmd != HPI_IOCTL_LINUX)
+ return -EINVAL;
+
+ phpi_ioctl_data = (struct hpi_ioctl_linux __user *)arg;
+
+ /* Read the message and response pointers from user space. */
+ get_user(phm, &phpi_ioctl_data->phm);
+ get_user(phr, &phpi_ioctl_data->phr);
+
+ /* Now read the message size and data from user space. */
+ /* get_user(hm.wSize, (u16 __user *)phm); */
+ uncopied_bytes = copy_from_user(&hm, phm, sizeof(hm));
+ if (uncopied_bytes)
+ return -EFAULT;
+
+ pa = &adapters[hm.wAdapterIndex];
+
+ if ((hm.wAdapterIndex > HPI_MAX_ADAPTERS) || (!pa->type)) {
+ HPI_InitResponse(&hr, HPI_OBJ_ADAPTER, HPI_ADAPTER_OPEN,
+ HPI_ERROR_BAD_ADAPTER_NUMBER);
+
+ uncopied_bytes = copy_to_user(phr, &hr, sizeof(hr));
+ if (uncopied_bytes)
+ return -EFAULT;
+ return 0;
+ }
+
+ hr.wSize = 0;
+ /* Response filled either copy from cache, or by HPI_Message() */
+ {
+ /* Dig out any pointers embedded in the message. */
+ u16 __user *ptr = NULL;
+ u32 size = 0;
+
+ /* -1=no data 0=read from user mem, 1=write to user mem */
+ int wrflag = -1;
+ u32 nAdapter = hm.wAdapterIndex;
+ switch (hm.wFunction) {
+ case HPI_SUBSYS_CREATE_ADAPTER:
+ case HPI_SUBSYS_DELETE_ADAPTER:
+ /* Application must not use these functions! */
+ hr.wSize = sizeof(struct hpi_response_header);
+ hr.wError = HPI_ERROR_INVALID_OPERATION;
+ hr.wFunction = hm.wFunction;
+ uncopied_bytes = copy_to_user(phr, &hr, hr.wSize);
+ if (uncopied_bytes)
+ return -EFAULT;
+ return 0;
+ case HPI_OSTREAM_WRITE:
+ case HPI_ISTREAM_READ:
+ /* Yes, sparse, this is correct. */
+ ptr = (u16 __user *)hm.u.d.u.Data.pbData;
+ size = hm.u.d.u.Data.dwDataSize;
+
+ hm.u.d.u.Data.pbData = pa->pBuffer;
+ /*
+ if (size > bufsize) {
+ size = bufsize;
+ hm.u.d.u.Data.dwDataSize = size;
+ }
+ */
+
+ if (hm.wFunction == HPI_ISTREAM_READ)
+ /* from card, WRITE to user mem */
+ wrflag = 1;
+ else
+ wrflag = 0;
+ break;
+
+ default:
+ break;
+ }
+
+ if (mutex_lock_interruptible(&adapters[nAdapter].mutex))
+ return -EINTR;
+
+ if (wrflag == 0) {
+ if (size > bufsize) {
+ mutex_unlock(&adapters[nAdapter].mutex);
+ HPI_DEBUG_LOG(ERROR,
+ "Requested transfer of %d "
+ "bytes, max buffer size "
+ "is %d bytes.\n", size, bufsize);
+ return -EINVAL;
+ }
+
+ uncopied_bytes =
+ copy_from_user(pa->pBuffer, ptr, size);
+ if (uncopied_bytes)
+ HPI_DEBUG_LOG(WARNING,
+ "Missed %d of %d "
+ "bytes from user\n",
+ uncopied_bytes, size);
+ }
+
+ HPI_MessageF(&hm, &hr, file);
+
+ if (wrflag == 1) {
+ if (size > bufsize) {
+ mutex_unlock(&adapters[nAdapter].mutex);
+ HPI_DEBUG_LOG(ERROR,
+ "Requested transfer of %d "
+ "bytes, max buffer size is "
+ "%d bytes.\n", size, bufsize);
+ return -EINVAL;
+ }
+
+ uncopied_bytes = copy_to_user(ptr, pa->pBuffer, size);
+ if (uncopied_bytes)
+ HPI_DEBUG_LOG(WARNING,
+ "Missed %d of %d "
+ "bytes to user\n",
+ uncopied_bytes, size);
+ }
+
+ mutex_unlock(&adapters[nAdapter].mutex);
+ }
+
+ /* on return response size must be set */
+ if (!hr.wSize)
+ return -EFAULT;
+
+ /* Copy the response back to user space. */
+ uncopied_bytes = copy_to_user(phr, &hr, sizeof(hr));
+ if (uncopied_bytes)
+ return -EFAULT;
+ return 0;
+}
+
+int __devinit asihpi_adapter_probe(
+ struct pci_dev *pci_dev,
+ const struct pci_device_id *pci_id
+)
+{
+ int err, idx;
+ unsigned int memlen;
+ struct hpi_message hm;
+ struct hpi_response hr;
+ struct hpi_adapter adapter;
+ struct hpi_pci Pci;
+
+ memset(&adapter, 0, sizeof(adapter));
+
+ printk(KERN_DEBUG "Probe PCI device (%04x:%04x,%04x:%04x,%04x)\n",
+ pci_dev->vendor, pci_dev->device, pci_dev->subsystem_vendor,
+ pci_dev->subsystem_device, pci_dev->devfn);
+
+ HPI_InitMessage(&hm, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_CREATE_ADAPTER);
+ HPI_InitResponse(&hr, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_CREATE_ADAPTER,
+ HPI_ERROR_PROCESSING_MESSAGE);
+
+ hm.wAdapterIndex = -1; /* an invalid index */
+
+ /* fill in HPI_PCI information from kernel provided information */
+ adapter.pci = pci_dev;
+
+ for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) {
+ HPI_DEBUG_LOG(DEBUG, "Resource %d %s %llx-%llx\n",
+ idx, pci_dev->resource[idx].name,
+ (unsigned long long)pci_resource_start(pci_dev, idx),
+ (unsigned long long)pci_resource_end(pci_dev, idx));
+
+ memlen = pci_resource_len(pci_dev, idx);
+ if (memlen) {
+ adapter.apRemappedMemBase[idx] =
+ ioremap(pci_resource_start(pci_dev, idx),
+ memlen);
+ if (!adapter.apRemappedMemBase[idx]) {
+ HPI_DEBUG_LOG(ERROR,
+ "ioremap failed, aborting\n");
+ /* unmap previously mapped pci mem space */
+ goto err;
+ }
+ } else
+ adapter.apRemappedMemBase[idx] = NULL;
+
+ Pci.apMemBase[idx] = adapter.apRemappedMemBase[idx];
+ }
+
+ Pci.wBusNumber = pci_dev->bus->number;
+ Pci.wVendorId = (u16)pci_dev->vendor;
+ Pci.wDeviceId = (u16)pci_dev->device;
+ Pci.wSubSysVendorId = (u16)(pci_dev->subsystem_vendor & 0xffff);
+ Pci.wSubSysDeviceId = (u16)(pci_dev->subsystem_device & 0xffff);
+ Pci.wDeviceNumber = pci_dev->devfn;
+ Pci.wInterrupt = pci_dev->irq;
+ Pci.pOsData = pci_dev;
+
+ hm.u.s.Resource.wBusType = HPI_BUS_PCI;
+ hm.u.s.Resource.r.Pci = &Pci;
+
+ /* call CreateAdapterObject on the relevant hpi module */
+ HPI_MessageEx(&hm, &hr, HOWNER_KERNEL);
+ if (hr.wError)
+ goto err;
+
+ adapter.pBuffer = vmalloc(bufsize);
+ if (adapter.pBuffer == NULL) {
+ HPI_DEBUG_LOG(ERROR,
+ "HPI could not allocate kernel buffer size %d\n",
+ bufsize);
+ goto err;
+ }
+
+ adapter.index = hr.u.s.wAdapterIndex;
+ adapter.type = hr.u.s.awAdapterList[adapter.index];
+ hm.wAdapterIndex = adapter.index;
+
+ err = HPI_AdapterOpen(NULL, adapter.index);
+ if (err)
+ goto err;
+
+ adapter.snd_card_asihpi = NULL;
+ /* WARNING can't init mutex in 'adapter'
+ * and then copy it to adapters[] ?!?!
+ */
+ adapters[hr.u.s.wAdapterIndex] = adapter;
+ mutex_init(&adapters[adapter.index].mutex);
+ pci_set_drvdata(pci_dev, &adapters[adapter.index]);
+
+ /* printk(KERN_INFO
+ "Probe found adapter ASI%04X HPI index #%d.\n",
+ adapter.type,
+ adapter.index);
+ */
+ return 0;
+
+err:
+ for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) {
+ if (adapter.apRemappedMemBase[idx]) {
+ iounmap(adapter.apRemappedMemBase[idx]);
+ adapter.apRemappedMemBase[idx] = NULL;
+ }
+ }
+
+ if (adapter.pBuffer)
+ vfree(adapter.pBuffer);
+
+ HPI_DEBUG_LOG(ERROR, "adapter_probe failed\n");
+ return -ENODEV;
+}
+
+void __devexit asihpi_adapter_remove(
+ struct pci_dev *pci_dev
+)
+{
+ int idx;
+ struct hpi_message hm;
+ struct hpi_response hr;
+ struct hpi_adapter *pa;
+ pa = (struct hpi_adapter *)pci_get_drvdata(pci_dev);
+
+ HPI_InitMessage(&hm, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_DELETE_ADAPTER);
+ hm.wAdapterIndex = pa->index;
+ HPI_MessageEx(&hm, &hr, HOWNER_KERNEL);
+
+ /* unmap PCI memory space, mapped during device init. */
+ for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) {
+ if (pa->apRemappedMemBase[idx]) {
+ iounmap(pa->apRemappedMemBase[idx]);
+ pa->apRemappedMemBase[idx] = NULL;
+ }
+ }
+
+ if (pa->pBuffer)
+ vfree(pa->pBuffer);
+
+ pci_set_drvdata(pci_dev, NULL);
+ /*
+ printk(KERN_INFO "PCI device (%04x:%04x,%04x:%04x,%04x),"
+ " HPI index # %d, removed.\n",
+ pci_dev->vendor, pci_dev->device,
+ pci_dev->subsystem_vendor,
+ pci_dev->subsystem_device, pci_dev->devfn,
+ pa->index);
+ */
+}
+
+void __init asihpi_init(
+ void
+)
+{
+ struct hpi_message hm;
+ struct hpi_response hr;
+
+ memset(adapters, 0, sizeof(adapters));
+
+ /* HPI_DebugLevelSet(debug); now set directly as module param */
+ printk(KERN_INFO "ASIHPI driver %d.%02d.%02d\n",
+ HPI_VER_MAJOR(HPI_VER),
+ HPI_VER_MINOR(HPI_VER), HPI_VER_RELEASE(HPI_VER));
+
+ HPI_InitMessage(&hm, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_DRIVER_LOAD);
+ HPI_MessageEx(&hm, &hr, HOWNER_KERNEL);
+}
+
+void asihpi_exit(
+ void
+)
+{
+ struct hpi_message hm;
+ struct hpi_response hr;
+
+ HPI_InitMessage(&hm, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_DRIVER_UNLOAD);
+ HPI_MessageEx(&hm, &hr, HOWNER_KERNEL);
+}
+
+/***********************************************************
+*/
diff --git a/pci/asihpi/hpioctl.h b/pci/asihpi/hpioctl.h
new file mode 100644
index 0000000..5363472
--- /dev/null
+++ b/pci/asihpi/hpioctl.h
@@ -0,0 +1,58 @@
+/*******************************************************************************
+
+ AudioScience HPI driver
+ Copyright (C) 1997-2003 AudioScience Inc. <support(a)audioscience.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of version 2 of the GNU General Public License as
+ published by the Free Software Foundation;
+
+ This program 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 this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+Linux HPI ioctl, and shared module init functions
+*******************************************************************************/
+
+int __devinit asihpi_adapter_probe(
+ struct pci_dev *pci_dev,
+ const struct pci_device_id *pci_id
+);
+void __devexit asihpi_adapter_remove(
+ struct pci_dev *pci_dev
+);
+void __init asihpi_init(
+ void
+);
+void __exit asihpi_exit(
+ void
+);
+
+int asihpi_hpi_release(
+ struct file *file
+);
+
+long asihpi_hpi_ioctl(
+ struct file *file,
+ unsigned int cmd,
+ unsigned long arg
+);
+
+/* This is called from hpifunc.c functions, called by ALSA
+ * (or other kernel process) In this case there is no file descriptor
+ * available for the message cache code
+ */
+void HPI_Message(
+ struct hpi_message *phm,
+ struct hpi_response *phr
+);
+
+#define HOWNER_KERNEL ((void *)-1)
+
+ /***********************************************************
+*/
--
1.5.4.3
