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firewire: Implement ioctl to initiate bus reset.

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Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Kristian Høgsberg 2007-03-07 12:12:42 -05:00 committed by Stefan Richter
parent 97bd9efa5a
commit 5371842b72
2 changed files with 27 additions and 4 deletions
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15
drivers/firewire/fw-device-cdev.c
View File

@ -433,6 +433,19 @@ static int ioctl_send_response(struct client *client, void __user *arg)
return 0;
}
static int ioctl_initiate_bus_reset(struct client *client, void __user *arg)
{
struct fw_cdev_initiate_bus_reset request;
int short_reset;
if (copy_from_user(&request, arg, sizeof request))
return -EFAULT;
short_reset = (request.type == FW_CDEV_SHORT_RESET);
return fw_core_initiate_bus_reset(client->device->card, short_reset);
}
static void
iso_callback(struct fw_iso_context *context, u32 cycle,
size_t header_length, void *header, void *data)
@ -606,6 +619,8 @@ dispatch_ioctl(struct client *client, unsigned int cmd, void __user *arg)
return ioctl_allocate(client, arg);
case FW_CDEV_IOC_SEND_RESPONSE:
return ioctl_send_response(client, arg);
case FW_CDEV_IOC_INITIATE_BUS_RESET:
return ioctl_initiate_bus_reset(client, arg);
case FW_CDEV_IOC_CREATE_ISO_CONTEXT:
return ioctl_create_iso_context(client, arg);
case FW_CDEV_IOC_QUEUE_ISO:

16
drivers/firewire/fw-device-cdev.h
View File

@ -108,10 +108,11 @@ struct fw_cdev_event_iso_interrupt {
#define FW_CDEV_IOC_SEND_REQUEST _IO('#', 0x01)
#define FW_CDEV_IOC_ALLOCATE _IO('#', 0x02)
#define FW_CDEV_IOC_SEND_RESPONSE _IO('#', 0x03)
#define FW_CDEV_IOC_CREATE_ISO_CONTEXT _IO('#', 0x04)
#define FW_CDEV_IOC_QUEUE_ISO _IO('#', 0x05)
#define FW_CDEV_IOC_START_ISO _IO('#', 0x06)
#define FW_CDEV_IOC_STOP_ISO _IO('#', 0x07)
#define FW_CDEV_IOC_INITIATE_BUS_RESET _IO('#', 0x04)
#define FW_CDEV_IOC_CREATE_ISO_CONTEXT _IO('#', 0x05)
#define FW_CDEV_IOC_QUEUE_ISO _IO('#', 0x06)
#define FW_CDEV_IOC_START_ISO _IO('#', 0x07)
#define FW_CDEV_IOC_STOP_ISO _IO('#', 0x08)
struct fw_cdev_get_config_rom {
__u32 length;
@ -139,6 +140,13 @@ struct fw_cdev_allocate {
__u32 length;
};
#define FW_CDEV_LONG_RESET 0
#define FW_CDEV_SHORT_RESET 1
struct fw_cdev_initiate_bus_reset {
__u32 type;
};
#define FW_CDEV_ISO_CONTEXT_TRANSMIT 0
#define FW_CDEV_ISO_CONTEXT_RECEIVE 1