diff options
Diffstat (limited to 'libusb/libusbi.h')
| -rw-r--r-- | libusb/libusbi.h | 48 |
1 files changed, 35 insertions, 13 deletions
diff --git a/libusb/libusbi.h b/libusb/libusbi.h index b1fc88c..3b0c610 100644 --- a/libusb/libusbi.h +++ b/libusb/libusbi.h @@ -73,7 +73,7 @@ #endif /* The following is used to silence warnings for unused variables */ -#if defined(UNREFERENCED_PARAMETER) +#if defined(UNREFERENCED_PARAMETER) && !defined(__GNUC__) #define UNUSED(var) UNREFERENCED_PARAMETER(var) #else #define UNUSED(var) do { (void)(var); } while(0) @@ -128,6 +128,7 @@ typedef atomic_long usbi_atomic_t; * return_type LIBUSB_CALL function_name(params); */ #define API_EXPORTED LIBUSB_CALL DEFAULT_VISIBILITY +#define API_EXPORTEDV LIBUSB_CALLV DEFAULT_VISIBILITY #ifdef __cplusplus extern "C" { @@ -321,10 +322,10 @@ void usbi_log(struct libusb_context *ctx, enum libusb_log_level level, #else /* ENABLE_LOGGING */ -#define usbi_err(ctx, ...) UNUSED(ctx) -#define usbi_warn(ctx, ...) UNUSED(ctx) -#define usbi_info(ctx, ...) UNUSED(ctx) -#define usbi_dbg(ctx, ...) do {} while (0) +#define usbi_err(ctx, ...) do { (void)(ctx); } while(0) +#define usbi_warn(ctx, ...) do { (void)(ctx); } while(0) +#define usbi_info(ctx, ...) do { (void)(ctx); } while(0) +#define usbi_dbg(ctx, ...) do { (void)(ctx); } while(0) #endif /* ENABLE_LOGGING */ @@ -379,7 +380,7 @@ struct libusb_context { struct list_head flying_transfers; /* Note paths taking both this and usbi_transfer->lock must always * take this lock first */ - usbi_mutex_t flying_transfers_lock; + usbi_mutex_t flying_transfers_lock; /* for flying_transfers and timeout_flags */ #if !defined(PLATFORM_WINDOWS) /* user callbacks for pollfd changes */ @@ -533,7 +534,7 @@ static inline void usbi_localize_device_descriptor(struct libusb_device_descript desc->bcdDevice = libusb_le16_to_cpu(desc->bcdDevice); } -#ifdef HAVE_CLOCK_GETTIME +#if defined(HAVE_CLOCK_GETTIME) && !defined(__APPLE__) static inline void usbi_get_monotonic_time(struct timespec *tp) { ASSERT_EQ(clock_gettime(CLOCK_MONOTONIC, tp), 0); @@ -562,8 +563,11 @@ void usbi_get_real_time(struct timespec *tp); * 2. struct usbi_transfer * 3. struct libusb_transfer (which includes iso packets) [variable size] * - * from a libusb_transfer, you can get the usbi_transfer by rewinding the - * appropriate number of bytes. + * You can convert between them with the macros: + * TRANSFER_PRIV_TO_USBI_TRANSFER + * USBI_TRANSFER_TO_TRANSFER_PRIV + * USBI_TRANSFER_TO_LIBUSB_TRANSFER + * LIBUSB_TRANSFER_TO_USBI_TRANSFER */ struct usbi_transfer { @@ -574,7 +578,7 @@ struct usbi_transfer { int transferred; uint32_t stream_id; uint32_t state_flags; /* Protected by usbi_transfer->lock */ - uint32_t timeout_flags; /* Protected by the flying_stransfers_lock */ + uint32_t timeout_flags; /* Protected by the flying_transfers_lock */ /* The device reference is held until destruction for logging * even after dev_handle is set to NULL. */ @@ -616,10 +620,21 @@ enum usbi_transfer_timeout_flags { USBI_TRANSFER_TIMED_OUT = 1U << 2, }; +#define TRANSFER_PRIV_TO_USBI_TRANSFER(transfer_priv) \ + ((struct usbi_transfer *) \ + ((unsigned char *)(transfer_priv) \ + + PTR_ALIGN(sizeof(*transfer_priv)))) + +#define USBI_TRANSFER_TO_TRANSFER_PRIV(itransfer) \ + ((unsigned char *) \ + ((unsigned char *)(itransfer) \ + - PTR_ALIGN(usbi_backend.transfer_priv_size))) + #define USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer) \ ((struct libusb_transfer *) \ ((unsigned char *)(itransfer) \ + PTR_ALIGN(sizeof(struct usbi_transfer)))) + #define LIBUSB_TRANSFER_TO_USBI_TRANSFER(transfer) \ ((struct usbi_transfer *) \ ((unsigned char *)(transfer) \ @@ -678,7 +693,7 @@ struct usbi_interface_descriptor { struct usbi_string_descriptor { uint8_t bLength; uint8_t bDescriptorType; - uint16_t wData[ZERO_SIZED_ARRAY]; + uint16_t wData[LIBUSB_FLEXIBLE_ARRAY]; } LIBUSB_PACKED; struct usbi_bos_descriptor { @@ -813,6 +828,7 @@ struct usbi_option { int is_set; union { int ival; + libusb_log_cb log_cbval; } arg; }; @@ -891,7 +907,7 @@ static inline void *usbi_get_transfer_priv(struct usbi_transfer *itransfer) struct discovered_devs { size_t len; size_t capacity; - struct libusb_device *devices[ZERO_SIZED_ARRAY]; + struct libusb_device *devices[LIBUSB_FLEXIBLE_ARRAY]; }; struct discovered_devs *discovered_devs_append( @@ -1180,6 +1196,8 @@ struct usbi_os_backend { * claiming, no other drivers/applications can use the interface because * we now "own" it. * + * This function gets called with dev_handle->lock locked! + * * Return: * - 0 on success * - LIBUSB_ERROR_NOT_FOUND if the interface does not exist @@ -1199,6 +1217,8 @@ struct usbi_os_backend { * You will only ever be asked to release an interface which was * successfully claimed earlier. * + * This function gets called with dev_handle->lock locked! + * * Return: * - 0 on success * - LIBUSB_ERROR_NO_DEVICE if the device has been disconnected since it @@ -1335,7 +1355,7 @@ struct usbi_os_backend { * * This function must not block. * - * This function gets called with the flying_transfers_lock locked! + * This function gets called with itransfer->lock locked! * * Return: * - 0 on success @@ -1349,6 +1369,8 @@ struct usbi_os_backend { * This function must not block. The transfer cancellation must complete * later, resulting in a call to usbi_handle_transfer_cancellation() * from the context of handle_events. + * + * This function gets called with itransfer->lock locked! */ int (*cancel_transfer)(struct usbi_transfer *itransfer); |