diff options
| -rw-r--r-- | drivers/firewire/ohci.c | 46 |
1 files changed, 28 insertions, 18 deletions
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index 39ddb62..3dc2e85 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -169,10 +169,7 @@ struct fw_ohci { int node_id; int generation; int request_generation; /* for timestamping incoming requests */ - - bool old_uninorth; - bool bus_reset_packet_quirk; - bool iso_cycle_timer_quirk; + unsigned quirks; /* * Spinlock for accessing fw_ohci data. Never call out of @@ -234,6 +231,21 @@ static inline struct fw_ohci *fw_ohci(struct fw_card *card) static char ohci_driver_name[] = KBUILD_MODNAME; +#define QUIRK_CYCLE_TIMER 1 +#define QUIRK_RESET_PACKET 2 +#define QUIRK_BE_HEADERS 4 + +/* In case of multiple matches in ohci_quirks[], only the first one is used. */ +static const struct { + unsigned short vendor, device, flags; +} ohci_quirks[] = { + {PCI_VENDOR_ID_TI, PCI_ANY_ID, QUIRK_RESET_PACKET}, + {PCI_VENDOR_ID_AL, PCI_ANY_ID, QUIRK_CYCLE_TIMER}, + {PCI_VENDOR_ID_NEC, PCI_ANY_ID, QUIRK_CYCLE_TIMER}, + {PCI_VENDOR_ID_VIA, PCI_ANY_ID, QUIRK_CYCLE_TIMER}, + {PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_UNI_N_FW, QUIRK_BE_HEADERS}, +}; + #ifdef CONFIG_FIREWIRE_OHCI_DEBUG #define OHCI_PARAM_DEBUG_AT_AR 1 @@ -507,7 +519,7 @@ static void ar_context_release(struct ar_context *ctx) #if defined(CONFIG_PPC_PMAC) && defined(CONFIG_PPC32) #define cond_le32_to_cpu(v) \ - (ohci->old_uninorth ? (__force __u32)(v) : le32_to_cpu(v)) + (ohci->quirks & QUIRK_BE_HEADERS ? (__force __u32)(v) : le32_to_cpu(v)) #else #define cond_le32_to_cpu(v) le32_to_cpu(v) #endif @@ -588,7 +600,7 @@ static __le32 *handle_ar_packet(struct ar_context *ctx, __le32 *buffer) * at a slightly incorrect time (in bus_reset_tasklet). */ if (evt == OHCI1394_evt_bus_reset) { - if (!ohci->bus_reset_packet_quirk) + if (!(ohci->quirks & QUIRK_RESET_PACKET)) ohci->request_generation = (p.header[2] >> 16) & 0xff; } else if (ctx == &ohci->ar_request_ctx) { fw_core_handle_request(&ohci->card, &p); @@ -1312,7 +1324,7 @@ static void bus_reset_tasklet(unsigned long data) context_stop(&ohci->at_response_ctx); reg_write(ohci, OHCI1394_IntEventClear, OHCI1394_busReset); - if (ohci->bus_reset_packet_quirk) + if (ohci->quirks & QUIRK_RESET_PACKET) ohci->request_generation = generation; /* @@ -1806,7 +1818,7 @@ static u32 ohci_get_cycle_time(struct fw_card *card) c2 = reg_read(ohci, OHCI1394_IsochronousCycleTimer); - if (ohci->iso_cycle_timer_quirk) { + if (ohci->quirks & QUIRK_CYCLE_TIMER) { i = 0; c1 = c2; c2 = reg_read(ohci, OHCI1394_IsochronousCycleTimer); @@ -2308,7 +2320,7 @@ static int __devinit pci_probe(struct pci_dev *dev, struct fw_ohci *ohci; u32 bus_options, max_receive, link_speed, version; u64 guid; - int err; + int i, err; size_t size; ohci = kzalloc(sizeof(*ohci), GFP_KERNEL); @@ -2351,15 +2363,13 @@ static int __devinit pci_probe(struct pci_dev *dev, version = reg_read(ohci, OHCI1394_Version) & 0x00ff00ff; -#if defined(CONFIG_PPC_PMAC) && defined(CONFIG_PPC32) - ohci->old_uninorth = dev->vendor == PCI_VENDOR_ID_APPLE && - dev->device == PCI_DEVICE_ID_APPLE_UNI_N_FW; -#endif - ohci->bus_reset_packet_quirk = dev->vendor == PCI_VENDOR_ID_TI; - - ohci->iso_cycle_timer_quirk = dev->vendor == PCI_VENDOR_ID_AL || - dev->vendor == PCI_VENDOR_ID_NEC || - dev->vendor == PCI_VENDOR_ID_VIA; + for (i = 0; i < ARRAY_SIZE(ohci_quirks); i++) + if (ohci_quirks[i].vendor == dev->vendor && + (ohci_quirks[i].device == dev->device || + ohci_quirks[i].device == (unsigned short)PCI_ANY_ID)) { + ohci->quirks = ohci_quirks[i].flags; + break; + } ar_context_init(&ohci->ar_request_ctx, ohci, OHCI1394_AsReqRcvContextControlSet); |