diff options
author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2011-06-06 14:18:38 +0900 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-06-07 09:10:09 -0700 |
commit | 97664a207bc2601a03a300f00e6922038cd5b99c (patch) | |
tree | 19202c1dc78068e52a337cf34bff79d7c6e1b92f /drivers/usb/renesas_usbhs/fifo.h | |
parent | 8a2c225ddb2d23a9b3f70af2ec70d28e4abd0b8e (diff) | |
download | linux-97664a207bc2601a03a300f00e6922038cd5b99c.tar.gz linux-97664a207bc2601a03a300f00e6922038cd5b99c.tar.bz2 linux-97664a207bc2601a03a300f00e6922038cd5b99c.zip |
usb: renesas_usbhs: shrink spin lock area
spin lock was very effective while doing 1 packet send/recv on
current renesas_usbhs driver.
But this lock is enough only
- modify packet/pipe link
- modify interrpt mask
- modify fifo access
This patch shrink spin lock area
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/renesas_usbhs/fifo.h')
-rw-r--r-- | drivers/usb/renesas_usbhs/fifo.h | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/usb/renesas_usbhs/fifo.h b/drivers/usb/renesas_usbhs/fifo.h index eab3258e9834..fcb1ecef57da 100644 --- a/drivers/usb/renesas_usbhs/fifo.h +++ b/drivers/usb/renesas_usbhs/fifo.h @@ -31,8 +31,8 @@ struct usbhs_pkt { }; struct usbhs_pkt_handle { - int (*prepare)(struct usbhs_pkt *pkt); - int (*try_run)(struct usbhs_pkt *pkt); + int (*prepare)(struct usbhs_pkt *pkt, int *is_done); + int (*try_run)(struct usbhs_pkt *pkt, int *is_done); }; /* @@ -44,6 +44,11 @@ void usbhs_fifo_quit(struct usbhs_priv *priv); /* * packet info */ +enum { + USBHSF_PKT_PREPARE, + USBHSF_PKT_TRY_RUN, +}; + extern struct usbhs_pkt_handle usbhs_fifo_push_handler; extern struct usbhs_pkt_handle usbhs_fifo_pop_handler; extern struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler; @@ -52,10 +57,10 @@ void usbhs_pkt_init(struct usbhs_pkt *pkt); void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt, struct usbhs_pkt_handle *handler, void *buf, int len, int zero); -void usbhs_pkt_pop(struct usbhs_pkt *pkt); -struct usbhs_pkt *usbhs_pkt_get(struct usbhs_pipe *pipe); +struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt); +int __usbhs_pkt_handler(struct usbhs_pipe *pipe, int type); -#define usbhs_pkt_start(p) ((p)->handler->prepare(p)) -#define usbhs_pkt_run(p) ((p)->handler->try_run(p)) +#define usbhs_pkt_start(p) __usbhs_pkt_handler(p, USBHSF_PKT_PREPARE) +#define usbhs_pkt_run(p) __usbhs_pkt_handler(p, USBHSF_PKT_TRY_RUN) #endif /* RENESAS_USB_FIFO_H */ |