void asihpi_adapter_remove(struct pci_dev *pci_dev)
{
int idx;
struct hpi_message hm;
struct hpi_response hr;
struct hpi_adapter *pa;
struct hpi_pci pci;
pa = pci_get_drvdata(pci_dev);
pci = pa->adapter->pci;
hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
HPI_ADAPTER_DELETE);
hm.adapter_index = pa->adapter->index;
hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
/* unmap PCI memory space, mapped during device init. */
for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) {
if (pci.ap_mem_base[idx])
iounmap(pci.ap_mem_base[idx]);
}
if (pa->p_buffer)
vfree(pa->p_buffer);
pci_set_drvdata(pci_dev, NULL);
if (1)
dev_info(&pci_dev->dev,
"remove %04x:%04x,%04x:%04x,%04x, HPI index %d\n",
pci_dev->vendor, pci_dev->device,
pci_dev->subsystem_vendor, pci_dev->subsystem_device,
pci_dev->devfn, pa->adapter->index);
memset(pa, 0, sizeof(*pa));
}
void asihpi_exit(void)
{
struct hpi_message hm;
struct hpi_response hr;
hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM,
HPI_SUBSYS_DRIVER_UNLOAD);
hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
}
/* Wrapper function to HPI_Message to enable dumping of the
message and response types.
*/
static void hpi_send_recv_f(struct hpi_message *phm, struct hpi_response *phr,
struct file *file)
{
if ((phm->adapter_index >= HPI_MAX_ADAPTERS)
&& (phm->object != HPI_OBJ_SUBSYSTEM))
phr->error = HPI_ERROR_INVALID_OBJ_INDEX;
else
hpi_send_recv_ex(phm, phr, file);
}
void asihpi_adapter_remove(struct pci_dev *pci_dev)
{
int idx;
struct hpi_message hm;
struct hpi_response hr;
struct hpi_adapter *pa;
struct hpi_pci pci;
pa = pci_get_drvdata(pci_dev);
pci = pa->adapter->pci;
/* Disable IRQ generation on DSP side */
hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
HPI_ADAPTER_SET_PROPERTY);
hm.adapter_index = pa->adapter->index;
hm.u.ax.property_set.property = HPI_ADAPTER_PROPERTY_IRQ_RATE;
hm.u.ax.property_set.parameter1 = 0;
hm.u.ax.property_set.parameter2 = 0;
hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
HPI_ADAPTER_DELETE);
hm.adapter_index = pa->adapter->index;
hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
/* unmap PCI memory space, mapped during device init. */
for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; ++idx)
iounmap(pci.ap_mem_base[idx]);
if (pa->irq)
free_irq(pa->irq, pa);
vfree(pa->p_buffer);
if (1)
dev_info(&pci_dev->dev,
"remove %04x:%04x,%04x:%04x,%04x, HPI index %d\n",
pci_dev->vendor, pci_dev->device,
pci_dev->subsystem_vendor, pci_dev->subsystem_device,
pci_dev->devfn, pa->adapter->index);
memset(pa, 0, sizeof(*pa));
}
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_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM,
HPI_SUBSYS_CLOSE);
hpi_send_recv_ex(&hm, &hr, file);
return 0;
}
void __init asihpi_init(void)
{
struct hpi_message hm;
struct hpi_response hr;
memset(adapters, 0, sizeof(adapters));
printk(KERN_INFO "ASIHPI driver " HPI_VER_STRING "\n");
hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM,
HPI_SUBSYS_DRIVER_LOAD);
hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
}
void __init asihpi_init(void)
{
struct hpi_message hm;
struct hpi_response hr;
memset(adapters, 0, sizeof(adapters));
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_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM,
HPI_SUBSYS_DRIVER_LOAD);
hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
}
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_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM,
HPI_SUBSYS_DELETE_ADAPTER);
hm.adapter_index = pa->index;
hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
/* unmap PCI memory space, mapped during device init. */
for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) {
if (pa->ap_remapped_mem_base[idx]) {
iounmap(pa->ap_remapped_mem_base[idx]);
pa->ap_remapped_mem_base[idx] = NULL;
}
}
if (pa->p_buffer) {
pa->buffer_size = 0;
vfree(pa->p_buffer);
}
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);
*/
}
int __devinit asihpi_adapter_probe(struct pci_dev *pci_dev,
const struct pci_device_id *pci_id)
{
int err, idx, nm;
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_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM,
HPI_SUBSYS_CREATE_ADAPTER);
hpi_init_response(&hr, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_CREATE_ADAPTER,
HPI_ERROR_PROCESSING_MESSAGE);
hm.adapter_index = -1; /* an invalid index */
/* fill in HPI_PCI information from kernel provided information */
adapter.pci = pci_dev;
nm = HPI_MAX_ADAPTER_MEM_SPACES;
for (idx = 0; idx < nm; idx++) {
HPI_DEBUG_LOG(INFO, "resource %d %s %08llx-%08llx %04llx\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),
(unsigned long long)pci_resource_flags(pci_dev, idx));
if (pci_resource_flags(pci_dev, idx) & IORESOURCE_MEM) {
memlen = pci_resource_len(pci_dev, idx);
adapter.ap_remapped_mem_base[idx] =
ioremap(pci_resource_start(pci_dev, idx),
memlen);
if (!adapter.ap_remapped_mem_base[idx]) {
HPI_DEBUG_LOG(ERROR,
"ioremap failed, aborting\n");
/* unmap previously mapped pci mem space */
goto err;
}
}
pci.ap_mem_base[idx] = adapter.ap_remapped_mem_base[idx];
}
/* could replace Pci with direct pointer to pci_dev for linux
Instead wrap accessor functions for IDs etc.
Would it work for windows?
*/
pci.bus_number = pci_dev->bus->number;
pci.vendor_id = (u16)pci_dev->vendor;
pci.device_id = (u16)pci_dev->device;
pci.subsys_vendor_id = (u16)(pci_dev->subsystem_vendor & 0xffff);
pci.subsys_device_id = (u16)(pci_dev->subsystem_device & 0xffff);
pci.device_number = pci_dev->devfn;
pci.interrupt = pci_dev->irq;
pci.p_os_data = pci_dev;
hm.u.s.resource.bus_type = HPI_BUS_PCI;
hm.u.s.resource.r.pci = &pci;
/* call CreateAdapterObject on the relevant hpi module */
hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
if (hr.error)
goto err;
if (prealloc_stream_buf) {
adapter.p_buffer = vmalloc(prealloc_stream_buf);
if (!adapter.p_buffer) {
HPI_DEBUG_LOG(ERROR,
"HPI could not allocate "
"kernel buffer size %d\n",
prealloc_stream_buf);
goto err;
}
}
adapter.index = hr.u.s.adapter_index;
adapter.type = hr.u.s.aw_adapter_list[adapter.index];
hm.adapter_index = adapter.index;
err = hpi_adapter_open(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.adapter_index] = 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.ap_remapped_mem_base[idx]) {
iounmap(adapter.ap_remapped_mem_base[idx]);
adapter.ap_remapped_mem_base[idx] = NULL;
}
}
if (adapter.p_buffer) {
adapter.buffer_size = 0;
vfree(adapter.p_buffer);
}
HPI_DEBUG_LOG(ERROR, "adapter_probe failed\n");
return -ENODEV;
}
int asihpi_adapter_probe(struct pci_dev *pci_dev,
const struct pci_device_id *pci_id)
{
int idx, nm;
int adapter_index;
unsigned int memlen;
struct hpi_message hm;
struct hpi_response hr;
struct hpi_adapter adapter;
struct hpi_pci pci;
memset(&adapter, 0, sizeof(adapter));
dev_printk(KERN_DEBUG, &pci_dev->dev,
"probe %04x:%04x,%04x:%04x,%04x\n", pci_dev->vendor,
pci_dev->device, pci_dev->subsystem_vendor,
pci_dev->subsystem_device, pci_dev->devfn);
if (pci_enable_device(pci_dev) < 0) {
dev_err(&pci_dev->dev,
"pci_enable_device failed, disabling device\n");
return -EIO;
}
pci_set_master(pci_dev); /* also sets latency timer if < 16 */
hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM,
HPI_SUBSYS_CREATE_ADAPTER);
hpi_init_response(&hr, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_CREATE_ADAPTER,
HPI_ERROR_PROCESSING_MESSAGE);
hm.adapter_index = HPI_ADAPTER_INDEX_INVALID;
nm = HPI_MAX_ADAPTER_MEM_SPACES;
for (idx = 0; idx < nm; idx++) {
HPI_DEBUG_LOG(INFO, "resource %d %pR\n", idx,
&pci_dev->resource[idx]);
if (pci_resource_flags(pci_dev, idx) & IORESOURCE_MEM) {
memlen = pci_resource_len(pci_dev, idx);
pci.ap_mem_base[idx] =
ioremap(pci_resource_start(pci_dev, idx),
memlen);
if (!pci.ap_mem_base[idx]) {
HPI_DEBUG_LOG(ERROR,
"ioremap failed, aborting\n");
/* unmap previously mapped pci mem space */
goto err;
}
}
}
pci.pci_dev = pci_dev;
hm.u.s.resource.bus_type = HPI_BUS_PCI;
hm.u.s.resource.r.pci = &pci;
/* call CreateAdapterObject on the relevant hpi module */
hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
if (hr.error)
goto err;
adapter_index = hr.u.s.adapter_index;
adapter.adapter = hpi_find_adapter(adapter_index);
if (prealloc_stream_buf) {
adapter.p_buffer = vmalloc(prealloc_stream_buf);
if (!adapter.p_buffer) {
HPI_DEBUG_LOG(ERROR,
"HPI could not allocate "
"kernel buffer size %d\n",
prealloc_stream_buf);
goto err;
}
}
hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
HPI_ADAPTER_OPEN);
hm.adapter_index = adapter.adapter->index;
hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
if (hr.error)
goto err;
/* WARNING can't init mutex in 'adapter'
* and then copy it to adapters[] ?!?!
*/
adapters[adapter_index] = adapter;
mutex_init(&adapters[adapter_index].mutex);
pci_set_drvdata(pci_dev, &adapters[adapter_index]);
dev_info(&pci_dev->dev, "probe succeeded for ASI%04X HPI index %d\n",
adapter.adapter->type, adapter_index);
return 0;
err:
for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) {
if (pci.ap_mem_base[idx]) {
iounmap(pci.ap_mem_base[idx]);
pci.ap_mem_base[idx] = NULL;
}
}
if (adapter.p_buffer) {
adapter.buffer_size = 0;
vfree(adapter.p_buffer);
}
HPI_DEBUG_LOG(ERROR, "adapter_probe failed\n");
return -ENODEV;
}
int asihpi_adapter_probe(struct pci_dev *pci_dev,
const struct pci_device_id *pci_id)
{
int idx, nm, low_latency_mode = 0, irq_supported = 0;
int adapter_index;
unsigned int memlen;
struct hpi_message hm;
struct hpi_response hr;
struct hpi_adapter adapter;
struct hpi_pci pci;
memset(&adapter, 0, sizeof(adapter));
dev_printk(KERN_DEBUG, &pci_dev->dev,
"probe %04x:%04x,%04x:%04x,%04x\n", pci_dev->vendor,
pci_dev->device, pci_dev->subsystem_vendor,
pci_dev->subsystem_device, pci_dev->devfn);
if (pci_enable_device(pci_dev) < 0) {
dev_err(&pci_dev->dev,
"pci_enable_device failed, disabling device\n");
return -EIO;
}
pci_set_master(pci_dev); /* also sets latency timer if < 16 */
hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM,
HPI_SUBSYS_CREATE_ADAPTER);
hpi_init_response(&hr, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_CREATE_ADAPTER,
HPI_ERROR_PROCESSING_MESSAGE);
hm.adapter_index = HPI_ADAPTER_INDEX_INVALID;
nm = HPI_MAX_ADAPTER_MEM_SPACES;
for (idx = 0; idx < nm; idx++) {
HPI_DEBUG_LOG(INFO, "resource %d %pR\n", idx,
&pci_dev->resource[idx]);
if (pci_resource_flags(pci_dev, idx) & IORESOURCE_MEM) {
memlen = pci_resource_len(pci_dev, idx);
pci.ap_mem_base[idx] =
ioremap(pci_resource_start(pci_dev, idx),
memlen);
if (!pci.ap_mem_base[idx]) {
HPI_DEBUG_LOG(ERROR,
"ioremap failed, aborting\n");
/* unmap previously mapped pci mem space */
goto err;
}
}
}
pci.pci_dev = pci_dev;
hm.u.s.resource.bus_type = HPI_BUS_PCI;
hm.u.s.resource.r.pci = &pci;
/* call CreateAdapterObject on the relevant hpi module */
hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
if (hr.error)
goto err;
adapter_index = hr.u.s.adapter_index;
adapter.adapter = hpi_find_adapter(adapter_index);
if (prealloc_stream_buf) {
adapter.p_buffer = vmalloc(prealloc_stream_buf);
if (!adapter.p_buffer) {
HPI_DEBUG_LOG(ERROR,
"HPI could not allocate "
"kernel buffer size %d\n",
prealloc_stream_buf);
goto err;
}
}
hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
HPI_ADAPTER_OPEN);
hm.adapter_index = adapter.adapter->index;
hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
if (hr.error) {
HPI_DEBUG_LOG(ERROR, "HPI_ADAPTER_OPEN failed, aborting\n");
goto err;
}
/* Check if current mode == Low Latency mode */
hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
HPI_ADAPTER_GET_MODE);
hm.adapter_index = adapter.adapter->index;
hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
if (!hr.error
&& hr.u.ax.mode.adapter_mode == HPI_ADAPTER_MODE_LOW_LATENCY)
low_latency_mode = 1;
else
dev_info(&pci_dev->dev,
"Adapter at index %d is not in low latency mode\n",
adapter.adapter->index);
/* Check if IRQs are supported */
hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
HPI_ADAPTER_GET_PROPERTY);
hm.adapter_index = adapter.adapter->index;
hm.u.ax.property_set.property = HPI_ADAPTER_PROPERTY_SUPPORTS_IRQ;
hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
if (hr.error || !hr.u.ax.property_get.parameter1) {
dev_info(&pci_dev->dev,
"IRQs not supported by adapter at index %d\n",
adapter.adapter->index);
} else {
irq_supported = 1;
}
/* WARNING can't init mutex in 'adapter'
* and then copy it to adapters[] ?!?!
*/
adapters[adapter_index] = adapter;
mutex_init(&adapters[adapter_index].mutex);
pci_set_drvdata(pci_dev, &adapters[adapter_index]);
if (low_latency_mode && irq_supported) {
if (!adapter.adapter->irq_query_and_clear) {
dev_err(&pci_dev->dev,
"no IRQ handler for adapter %d, aborting\n",
adapter.adapter->index);
goto err;
}
/* Disable IRQ generation on DSP side by setting the rate to 0 */
hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
HPI_ADAPTER_SET_PROPERTY);
hm.adapter_index = adapter.adapter->index;
hm.u.ax.property_set.property = HPI_ADAPTER_PROPERTY_IRQ_RATE;
hm.u.ax.property_set.parameter1 = 0;
hm.u.ax.property_set.parameter2 = 0;
hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
if (hr.error) {
HPI_DEBUG_LOG(ERROR,
"HPI_ADAPTER_GET_MODE failed, aborting\n");
goto err;
}
/* Note: request_irq calls asihpi_isr here */
if (request_irq(pci_dev->irq, asihpi_isr, IRQF_SHARED,
"asihpi", &adapters[adapter_index])) {
dev_err(&pci_dev->dev, "request_irq(%d) failed\n",
pci_dev->irq);
goto err;
}
adapters[adapter_index].interrupt_mode = 1;
dev_info(&pci_dev->dev, "using irq %d\n", pci_dev->irq);
adapters[adapter_index].irq = pci_dev->irq;
} else {
dev_info(&pci_dev->dev, "using polled mode\n");
}
dev_info(&pci_dev->dev, "probe succeeded for ASI%04X HPI index %d\n",
adapter.adapter->type, adapter_index);
return 0;
err:
for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) {
if (pci.ap_mem_base[idx]) {
iounmap(pci.ap_mem_base[idx]);
pci.ap_mem_base[idx] = NULL;
}
}
if (adapter.p_buffer) {
adapter.buffer_size = 0;
vfree(adapter.p_buffer);
}
HPI_DEBUG_LOG(ERROR, "adapter_probe failed\n");
return -ENODEV;
}
