/*****************************************************************************
Function name : orc_ReturnNumberOfAdapters
Description : This function will scan PCI bus to get all Orchid card
Input : None.
Output : None.
Return : SUCCESSFUL - Successful scan
ohterwise - No drives founded
*****************************************************************************/
int orc_ReturnNumberOfAdapters(void)
{
unsigned int i, iAdapters;
iAdapters = 0;
/*
* PCI-bus probe.
*/
if (pcibios_present()) {
struct {
unsigned short vendor_id;
unsigned short device_id;
} const inia100_pci_devices[] =
{
{ORC_VENDOR_ID, I920_DEVICE_ID},
{ORC_VENDOR_ID, ORC_DEVICE_ID}
};
unsigned int dRegValue;
unsigned short command;
WORD wBIOS, wBASE;
BYTE bPCIBusNum, bInterrupt, bPCIDeviceNum;
#ifdef MMAPIO
unsigned long page_offset, base;
#endif
#if LINUX_VERSION_CODE > CVT_LINUX_VERSION(2,1,92)
struct pci_dev *pdev = NULL;
#else
int index;
unsigned char pci_bus, pci_devfn;
#endif
bPCIBusNum = 0;
bPCIDeviceNum = 0;
init_inia100Adapter_table();
for (i = 0; i < NUMBER(inia100_pci_devices); i++) {
#if LINUX_VERSION_CODE > CVT_LINUX_VERSION(2,1,92)
pdev = NULL;
while ((pdev = pci_find_device(inia100_pci_devices[i].vendor_id,
inia100_pci_devices[i].device_id,
pdev)))
#else
index = 0;
while (!(pcibios_find_device(inia100_pci_devices[i].vendor_id,
inia100_pci_devices[i].device_id,
index++, &pci_bus, &pci_devfn)))
#endif
{
if (iAdapters >= MAX_SUPPORTED_ADAPTERS)
break; /* Never greater than maximum */
if (i == 0) {
/*
printk("inia100: The RAID controller is not supported by\n");
printk("inia100: this driver, we are ignoring it.\n");
*/
} else {
/*
* Read sundry information from PCI BIOS.
*/
#if LINUX_VERSION_CODE > CVT_LINUX_VERSION(2,1,92)
bPCIBusNum = pdev->bus->number;
bPCIDeviceNum = pdev->devfn;
dRegValue = pdev->base_address[0];
if (dRegValue == -1) { /* Check return code */
printk("\n\rinia100: orchid read configuration error.\n");
return (0); /* Read configuration space error */
}
/* <02> read from base address + 0x50 offset to get the wBIOS balue. */
wBASE = (WORD) dRegValue;
/* Now read the interrupt line */
dRegValue = pdev->irq;
bInterrupt = dRegValue & 0xFF; /* Assign interrupt line */
pci_read_config_word(pdev, PCI_COMMAND, &command);
pci_write_config_word(pdev, PCI_COMMAND,
command | PCI_COMMAND_MASTER | PCI_COMMAND_IO);
#else
bPCIBusNum = pci_bus;
bPCIDeviceNum = pci_devfn;
pcibios_read_config_dword(pci_bus, pci_devfn, PCI_BASE_ADDRESS_0,
&dRegValue);
if (dRegValue == -1) { /* Check return code */
printk("\n\rinia100: Orchid read configuration error.\n");
return (0); /* Read configuration space error */
}
/* <02> read from base address + 0x50 offset to get the wBIOS balue. */
wBASE = (WORD) dRegValue;
/* Now read the interrupt line */
pcibios_read_config_dword(pci_bus, pci_devfn, PCI_INTERRUPT_LINE,
&dRegValue);
bInterrupt = dRegValue & 0xFF; /* Assign interrupt line */
pcibios_read_config_word(pci_bus, pci_devfn, PCI_COMMAND, &command);
pcibios_write_config_word(pci_bus, pci_devfn, PCI_COMMAND,
command | PCI_COMMAND_MASTER | PCI_COMMAND_IO);
#endif
wBASE &= PCI_BASE_ADDRESS_IO_MASK;
wBIOS = ORC_RDWORD(wBASE, 0x50);
#ifdef MMAPIO
base = wBASE & PAGE_MASK;
page_offset = wBASE - base;
/*
* replace the next line with this one if you are using 2.1.x:
* temp_p->maddr = ioremap(base, page_offset + 256);
*/
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,0)
wBASE = ioremap(base, page_offset + 256);
#else
wBASE = (WORD) vremap(base, page_offset + 256);
#endif
if (wBASE) {
wBASE += page_offset;
}
#endif
if (Addinia100_into_Adapter_table(wBIOS, wBASE, bInterrupt, bPCIBusNum,
bPCIDeviceNum) == SUCCESSFUL)
iAdapters++;
}
} /* while(pdev=....) */
} /* for PCI_DEVICES */
} /* PCI BIOS present */
return (iAdapters);
}
static int __devinit inia100_probe_one(struct pci_dev *pdev,
const struct pci_device_id *id)
{
struct Scsi_Host *shost;
ORC_HCS *pHCB;
unsigned long port, bios;
int error = -ENODEV;
u32 sz;
unsigned long dBiosAdr;
char *pbBiosAdr;
if (pci_enable_device(pdev))
goto out;
if (pci_set_dma_mask(pdev, 0xffffffffULL)) {
printk(KERN_WARNING "Unable to set 32bit DMA "
"on inia100 adapter, ignoring.\n");
goto out_disable_device;
}
pci_set_master(pdev);
port = pci_resource_start(pdev, 0);
if (!request_region(port, 256, "inia100")) {
printk(KERN_WARNING "inia100: io port 0x%lx, is busy.\n", port);
goto out_disable_device;
}
/* <02> read from base address + 0x50 offset to get the bios balue. */
bios = ORC_RDWORD(port, 0x50);
shost = scsi_host_alloc(&inia100_template, sizeof(ORC_HCS));
if (!shost)
goto out_release_region;
pHCB = (ORC_HCS *)shost->hostdata;
pHCB->pdev = pdev;
pHCB->HCS_Base = port;
pHCB->HCS_BIOS = bios;
pHCB->pSRB_head = NULL; /* Initial SRB save queue */
pHCB->pSRB_tail = NULL; /* Initial SRB save queue */
pHCB->pSRB_lock = SPIN_LOCK_UNLOCKED; /* SRB save queue lock */
pHCB->BitAllocFlagLock = SPIN_LOCK_UNLOCKED;
/* Get total memory needed for SCB */
sz = ORC_MAXQUEUE * sizeof(ORC_SCB);
pHCB->HCS_virScbArray = pci_alloc_consistent(pdev, sz,
&pHCB->HCS_physScbArray);
if (!pHCB->HCS_virScbArray) {
printk("inia100: SCB memory allocation error\n");
goto out_host_put;
}
memset(pHCB->HCS_virScbArray, 0, sz);
/* Get total memory needed for ESCB */
sz = ORC_MAXQUEUE * sizeof(ESCB);
pHCB->HCS_virEscbArray = pci_alloc_consistent(pdev, sz,
&pHCB->HCS_physEscbArray);
if (!pHCB->HCS_virEscbArray) {
printk("inia100: ESCB memory allocation error\n");
goto out_free_scb_array;
}
memset(pHCB->HCS_virEscbArray, 0, sz);
dBiosAdr = pHCB->HCS_BIOS;
dBiosAdr = (dBiosAdr << 4);
pbBiosAdr = phys_to_virt(dBiosAdr);
if (init_orchid(pHCB)) { /* Initialize orchid chip */
printk("inia100: initial orchid fail!!\n");
goto out_free_escb_array;
}
shost->io_port = pHCB->HCS_Base;
shost->n_io_port = 0xff;
shost->can_queue = ORC_MAXQUEUE;
shost->unique_id = shost->io_port;
shost->max_id = pHCB->HCS_MaxTar;
shost->max_lun = 16;
shost->irq = pHCB->HCS_Intr = pdev->irq;
shost->this_id = pHCB->HCS_SCSI_ID; /* Assign HCS index */
shost->sg_tablesize = TOTAL_SG_ENTRY;
/* Initial orc chip */
error = request_irq(pdev->irq, inia100_intr, SA_SHIRQ,
"inia100", shost);
if (error < 0) {
printk(KERN_WARNING "inia100: unable to get irq %d\n",
pdev->irq);
goto out_free_escb_array;
}
pci_set_drvdata(pdev, shost);
error = scsi_add_host(shost, &pdev->dev);
if (error)
goto out_free_irq;
scsi_scan_host(shost);
return 0;
out_free_irq:
free_irq(shost->irq, shost);
out_free_escb_array:
pci_free_consistent(pdev, ORC_MAXQUEUE * sizeof(ESCB),
pHCB->HCS_virEscbArray, pHCB->HCS_physEscbArray);
out_free_scb_array:
pci_free_consistent(pdev, ORC_MAXQUEUE * sizeof(ORC_SCB),
pHCB->HCS_virScbArray, pHCB->HCS_physScbArray);
out_host_put:
scsi_host_put(shost);
out_release_region:
release_region(port, 256);
out_disable_device:
pci_disable_device(pdev);
out:
return error;
}
