diff options
| author |   Geoff Levand <geoffrey.levand@am.sony.com> | 2007-02-06 14:23:47 -0800 |
|---|---|---|
| committer |   Paul Mackerras <paulus@samba.org> | 2007-02-16 14:00:19 +1100 |
| commit | ea1547d31153f8c3bdd32646f17d096d3108c838 (patch) | |
| tree | d292396b7446be61318d7e70be443d88a68b32f1 /drivers/ps3/vuart.h | |
| parent | [POWERPC] PS3: Vuart cleanups (diff) | |
| download | linux-dev-ea1547d31153f8c3bdd32646f17d096d3108c838.tar.xz linux-dev-ea1547d31153f8c3bdd32646f17d096d3108c838.zip | |
[POWERPC] PS3: Vuart add async read
Add asynchronous read support to the PS3 vuart driver. This is needed to
support the PS3 system manager driver.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'drivers/ps3/vuart.h')
| -rw-r--r-- | drivers/ps3/vuart.h | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/drivers/ps3/vuart.h b/drivers/ps3/vuart.h index 34b360da9ff9..1be992d568c8 100644 --- a/drivers/ps3/vuart.h +++ b/drivers/ps3/vuart.h @@ -31,6 +31,13 @@ struct ps3_vuart_stats { unsigned long disconnect_interrupts; }; +struct ps3_vuart_work { + struct work_struct work; + unsigned long trigger; + spinlock_t lock; + struct ps3_vuart_port_device* dev; /* to convert work to device */ +}; + /** * struct ps3_vuart_port_priv - private vuart device data. */ @@ -49,6 +56,7 @@ struct ps3_vuart_port_priv { struct list_head head; } rx_list; struct ps3_vuart_stats stats; + struct ps3_vuart_work work; }; /** @@ -71,10 +79,6 @@ struct ps3_vuart_port_driver { int ps3_vuart_port_driver_register(struct ps3_vuart_port_driver *drv); void ps3_vuart_port_driver_unregister(struct ps3_vuart_port_driver *drv); -int ps3_vuart_write(struct ps3_vuart_port_device *dev, - const void* buf, unsigned int bytes); -int ps3_vuart_read(struct ps3_vuart_port_device *dev, void* buf, - unsigned int bytes); static inline struct ps3_vuart_port_driver *to_ps3_vuart_port_driver( struct device_driver *_drv) { @@ -85,5 +89,22 @@ static inline struct ps3_vuart_port_device *to_ps3_vuart_port_device( { return container_of(_dev, struct ps3_vuart_port_device, core); } +static inline struct ps3_vuart_port_device *ps3_vuart_work_to_port_device( + struct work_struct *_work) +{ + struct ps3_vuart_work *vw = container_of(_work, struct ps3_vuart_work, + work); + return vw->dev; +} + +int ps3_vuart_write(struct ps3_vuart_port_device *dev, const void* buf, + unsigned int bytes); +int ps3_vuart_read(struct ps3_vuart_port_device *dev, void* buf, + unsigned int bytes); +int ps3_vuart_read_async(struct ps3_vuart_port_device *dev, work_func_t func, + unsigned int bytes); +void ps3_vuart_cancel_async(struct ps3_vuart_port_device *dev); +void ps3_vuart_clear_rx_bytes(struct ps3_vuart_port_device *dev, + unsigned int bytes); #endif |