diff options
Diffstat (limited to 'drivers/firewire/fw-device-cdev.c')
| -rw-r--r-- | drivers/firewire/fw-device-cdev.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/firewire/fw-device-cdev.c b/drivers/firewire/fw-device-cdev.c index d2b867f44348..2910db69ec2c 100644 --- a/drivers/firewire/fw-device-cdev.c +++ b/drivers/firewire/fw-device-cdev.c @@ -80,6 +80,7 @@ struct client { u64 bus_reset_closure; struct fw_iso_context *iso_context; + u64 iso_closure; struct fw_iso_buffer buffer; unsigned long vm_start; @@ -626,7 +627,7 @@ iso_callback(struct fw_iso_context *context, u32 cycle, return; interrupt->interrupt.type = FW_CDEV_EVENT_ISO_INTERRUPT; - interrupt->interrupt.closure = 0; + interrupt->interrupt.closure = client->iso_closure; interrupt->interrupt.cycle = cycle; interrupt->interrupt.header_length = header_length; memcpy(interrupt->interrupt.header, header, header_length); @@ -659,6 +660,7 @@ static int ioctl_create_iso_context(struct client *client, void *buffer) return -EINVAL; } + client->iso_closure = request->closure; client->iso_context = fw_iso_context_create(client->device->card, request->type, request->channel, @@ -668,6 +670,9 @@ static int ioctl_create_iso_context(struct client *client, void *buffer) if (IS_ERR(client->iso_context)) return PTR_ERR(client->iso_context); + /* We only support one context at this time. */ + request->handle = 0; + return 0; } @@ -683,7 +688,7 @@ static int ioctl_queue_iso(struct client *client, void *buffer) u8 header[256]; } u; - if (ctx == NULL) + if (ctx == NULL || request->handle != 0) return -EINVAL; /* If the user passes a non-NULL data pointer, has mmap()'ed @@ -759,6 +764,8 @@ static int ioctl_start_iso(struct client *client, void *buffer) { struct fw_cdev_start_iso *request = buffer; + if (request->handle != 0) + return -EINVAL; if (client->iso_context->type == FW_ISO_CONTEXT_RECEIVE) { if (request->tags == 0 || request->tags > 15) return -EINVAL; @@ -773,6 +780,11 @@ static int ioctl_start_iso(struct client *client, void *buffer) static int ioctl_stop_iso(struct client *client, void *buffer) { + struct fw_cdev_stop_iso *request = buffer; + + if (request->handle != 0) + return -EINVAL; + return fw_iso_context_stop(client->iso_context); } |