pci1.c

eCos操作系统源码

#ifdef USE_PCI_CODE_LIST
            device = dev_info.device;
            dtbl = PciDevTable;
            for (i = 0; i < PCI_DEVTABLE_LEN; i++, dtbl++)
                if (vendor == dtbl->VenId && device == dtbl->DevId) 
                    break;

            if (i < PCI_DEVTABLE_LEN) {
                diag_printf(" [%s][%s]", dtbl->Chip, dtbl->ChipDesc);
            } else {
                diag_printf(" [UNKNOWN]");
                no_match = true;
            }
#endif

            diag_printf("\n Command   0x%04x, Status 0x%04x\n",
                        dev_info.command, dev_info.status);

            diag_printf(" Class/Rev 0x%08x", dev_info.class_rev);
#ifdef USE_PCI_CODE_LIST
            bc = (dev_info.class_rev >> 24) & 0xff;
            sc = (dev_info.class_rev >> 16) & 0xff;
            pi = (dev_info.class_rev >>  8) & 0xff;
            ctbl = PciClassCodeTable;
            for (i = 0; i < PCI_CLASSCODETABLE_LEN; i++, ctbl++)
                if (bc == ctbl->BaseClass 
                    && sc == ctbl->SubClass
                    && pi == ctbl->ProgIf)
                    break;

            if (i < PCI_CLASSCODETABLE_LEN) {
                diag_printf(" [%s][%s][%s]", ctbl->BaseDesc,
                            ctbl->SubDesc, ctbl->ProgDesc);
            } else {
                diag_printf(" [UNKNOWN]");
                no_match = true;
            }
#endif
            diag_printf("\n Header 0x%02x\n", dev_info.header_type);

            diag_printf(" SubVendor 0x%04x, Sub ID 0x%04x\n",
                        dev_info.header.normal.sub_vendor, 
                        dev_info.header.normal.sub_id);


            for(i = 0; i < CYG_PCI_MAX_BAR; i++) {
                diag_printf(" BAR[%d]    0x%08x /", i, dev_info.base_address[i]);
                diag_printf(" probed size 0x%08x / CPU addr 0x%08x\n",
                            dev_info.base_size[i], dev_info.base_map[i]);
            }
            
            if (cyg_pci_translate_interrupt(&dev_info, &irq))
                diag_printf(" Wired to HAL vector %d\n", irq);
            else
                diag_printf(" Does not generate interrupts.\n");

        } while (cyg_pci_find_next(devid, &devid));


#ifdef USE_PCI_CODE_LIST
        diag_printf("\nStrings in [] are from the PCI Code List at http://www.yourvote.com/pci\n");
        if (no_match) {
            diag_printf("It seems that some of the device information has not been registered in\n");
            diag_printf("the PCI Code List. Please consider improving the database by registering\n");
            diag_printf("the [UNKNOWN] information for your devices. Thanks.\n");
        }
#endif
    } else {
        diag_printf("No PCI devices found.");
    }

    pci_scan();

    CYG_TEST_PASS_FINISH("pci1 test OK");
}

void
pci_scan( void )
{
    cyg_pci_device dev_info;
    cyg_pci_device_id devid;
    CYG_ADDRWORD irq;
    int i;
#ifdef USE_PCI_CODE_LIST
    cyg_bool no_match = false;
    cyg_uint16 vendor, device;
    cyg_uint8  bc, sc, pi;
    PCI_VENTABLE* vtbl;
    PCI_DEVTABLE* dtbl;
    PCI_CLASSCODETABLE* ctbl;
#endif

    diag_printf( "========== Scanning initialized devices\n" );

    if (cyg_pci_find_next(CYG_PCI_NULL_DEVID, &devid)) {
        do {
            // Since we are NOT about to configure the device, set the
            // devinfo record so we don't mistake garbage for data.
            memset( &dev_info, 0xAAAAAAAAu, sizeof( dev_info ) );

            // Get device info
            cyg_pci_get_device_info(devid, &dev_info);

            // Print stuff
            diag_printf("Found device on bus %d, devfn 0x%02x:\n",
                        CYG_PCI_DEV_GET_BUS(devid),
                        CYG_PCI_DEV_GET_DEVFN(devid));

            if (dev_info.command & CYG_PCI_CFG_COMMAND_ACTIVE) {
                diag_printf(" Note that board is active. Probed"
                            " sizes and CPU addresses invalid!\n");
            }

            diag_printf(" Vendor    0x%04x", dev_info.vendor);
#ifdef USE_PCI_CODE_LIST
            vendor = dev_info.vendor;
            vtbl = PciVenTable;
            for (i = 0; i < PCI_VENTABLE_LEN; i++, vtbl++)
                if (vendor == vtbl->VenId) 
                    break;

            if (i < PCI_VENTABLE_LEN) {
                diag_printf(" [%s][%s]", vtbl->VenShort, vtbl->VenFull);
            } else {
                diag_printf(" [UNKNOWN]");
                no_match = true;
            }
#endif
            diag_printf("\n Device    0x%04x", dev_info.device);
#ifdef USE_PCI_CODE_LIST
            device = dev_info.device;
            dtbl = PciDevTable;
            for (i = 0; i < PCI_DEVTABLE_LEN; i++, dtbl++)
                if (vendor == dtbl->VenId && device == dtbl->DevId) 
                    break;

            if (i < PCI_DEVTABLE_LEN) {
                diag_printf(" [%s][%s]", dtbl->Chip, dtbl->ChipDesc);
            } else {
                diag_printf(" [UNKNOWN]");
                no_match = true;
            }
#endif

            diag_printf("\n Command   0x%04x, Status 0x%04x\n",
                        dev_info.command, dev_info.status);

            diag_printf(" Class/Rev 0x%08x", dev_info.class_rev);
#ifdef USE_PCI_CODE_LIST
            bc = (dev_info.class_rev >> 24) & 0xff;
            sc = (dev_info.class_rev >> 16) & 0xff;
            pi = (dev_info.class_rev >>  8) & 0xff;
            ctbl = PciClassCodeTable;
            for (i = 0; i < PCI_CLASSCODETABLE_LEN; i++, ctbl++)
                if (bc == ctbl->BaseClass 
                    && sc == ctbl->SubClass
                    && pi == ctbl->ProgIf)
                    break;

            if (i < PCI_CLASSCODETABLE_LEN) {
                diag_printf(" [%s][%s][%s]", ctbl->BaseDesc,
                            ctbl->SubDesc, ctbl->ProgDesc);
            } else {
                diag_printf(" [UNKNOWN]");
                no_match = true;
            }
#endif
            diag_printf("\n Header 0x%02x\n", dev_info.header_type);

            diag_printf(" SubVendor 0x%04x, Sub ID 0x%04x\n",
                        dev_info.header.normal.sub_vendor, 
                        dev_info.header.normal.sub_id);


            for(i = 0; i < CYG_PCI_MAX_BAR; i++) {
                diag_printf(" BAR[%d]    0x%08x /", i, dev_info.base_address[i]);
                diag_printf(" probed size 0x%08x / CPU addr 0x%08x\n",
                            dev_info.base_size[i], dev_info.base_map[i]);
            }
            
            if (cyg_pci_translate_interrupt(&dev_info, &irq))
                diag_printf(" Wired to HAL vector %d\n", irq);
            else
                diag_printf(" Does not generate interrupts.\n");

        } while (cyg_pci_find_next(devid, &devid));
    } else {
        diag_printf("No PCI devices found.");
    }
}

void
cyg_start(void)
{
    CYG_TEST_INIT();
    cyg_thread_create(10,                   // Priority - just a number
                      (cyg_thread_entry_t*)pci_test,         // entry
                      0,                    // 
                      "pci_thread",     // Name
                      &stack[0],            // Stack
                      CYGNUM_HAL_STACK_SIZE_TYPICAL,           // Size
                      &thread_handle,       // Handle
                      &thread_data          // Thread data structure
        );
    cyg_thread_resume(thread_handle);
    cyg_scheduler_start();
}

#else // CYGFUN_KERNEL_API_C && CYG_PCI_PRESENT
#define N_A_MSG "Needs kernel C API & PCI platform support"
#endif

#else // CYGPKG_IO_PCI && CYGPKG_KERNEL
#define N_A_MSG "Needs IO/PCI, ISOINFRA, and Kernel"
#endif

#ifdef N_A_MSG
void
cyg_start( void )
{
    CYG_TEST_INIT();
    CYG_TEST_NA( N_A_MSG);
}
#endif // N_A_MSG

// EOF pci1.c