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| author | Alan Stern <stern@rowland.harvard.edu> | 2007-08-21 15:40:36 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-10-12 14:55:19 -0700 |
| commit | eb23105462304fd35571fd0cab1de7aec79a9ec5 (patch) | |
| tree | 3579e74b3f1a6e68d42de01c122d206447454d4b /drivers/usb/host/r8a66597-hcd.c | |
| parent | b0d9efba3ec53468984aecef8eeaf079089f2e5a (diff) | |
| download | op-kernel-dev-eb23105462304fd35571fd0cab1de7aec79a9ec5.zip op-kernel-dev-eb23105462304fd35571fd0cab1de7aec79a9ec5.tar.gz | |
USB: add urb->unlinked field
This patch (as970) adds a new urb->unlinked field, which is used to
store the status of unlinked URBs since we can't use urb->status for
that purpose any more. To help simplify the HCDs, usbcore will check
urb->unlinked before calling the completion handler; if the value is
set it will automatically override the status reported by the HCD.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: David Brownell <david-b@pacbell.net>
CC: Olav Kongas <ok@artecdesign.ee>
CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
CC: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/r8a66597-hcd.c')
| -rw-r--r-- | drivers/usb/host/r8a66597-hcd.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 60248b0..98b9e05 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -1118,7 +1118,7 @@ __releases(r8a66597->lock) __acquires(r8a66597->lock) r8a66597->timeout_map &= ~(1 << pipenum); if (likely(td)) { - if (td->set_address && urb->status != 0) + if (td->set_address && (urb->status != 0 || urb->unlinked)) r8a66597->address_map &= ~(1 << urb->setup_packet[2]); pipe_toggle_save(r8a66597, td->pipe, urb); @@ -1225,8 +1225,7 @@ static void packet_read(struct r8a66597 *r8a66597, u16 pipenum) } if (finish && pipenum != 0) { - if (td->urb->status == -EINPROGRESS) - td->urb->status = status; + td->urb->status = status; finish_request(r8a66597, td, pipenum, urb); } } @@ -1308,32 +1307,24 @@ static void check_next_phase(struct r8a66597 *r8a66597) switch (td->type) { case USB_PID_IN: case USB_PID_OUT: - if (urb->status != -EINPROGRESS) { - finish = 1; - break; - } if (check_transfer_finish(td, urb)) td->type = USB_PID_ACK; break; case USB_PID_SETUP: - if (urb->status != -EINPROGRESS) - finish = 1; - else if (urb->transfer_buffer_length == urb->actual_length) { + if (urb->transfer_buffer_length == urb->actual_length) td->type = USB_PID_ACK; - urb->status = 0; - } else if (usb_pipeout(urb->pipe)) + else if (usb_pipeout(urb->pipe)) td->type = USB_PID_OUT; else td->type = USB_PID_IN; break; case USB_PID_ACK: finish = 1; - if (urb->status == -EINPROGRESS) - urb->status = 0; + urb->status = 0; break; } - if (finish) + if (finish || urb->unlinked) finish_request(r8a66597, td, 0, urb); else start_transfer(r8a66597, td); @@ -1418,8 +1409,7 @@ static void irq_pipe_empty(struct r8a66597 *r8a66597) if ((tmp & INBUFM) == 0) { disable_irq_empty(r8a66597, pipenum); pipe_irq_disable(r8a66597, pipenum); - if (td->urb->status == -EINPROGRESS) - td->urb->status = 0; + td->urb->status = 0; finish_request(r8a66597, td, pipenum, td->urb); } } |
