提交 75c86e74 编写于 作者: G Geoff Levand 提交者: Paul Mackerras

[POWERPC] PS3: Vuart cleanups

Cleanups for the PS3 vuart driver.

- Hide driver private data from external interface with new structure
  ps3_vuart_port_priv.
- Fix masking bug in ps3_vuart_get_interrupt_status().
- Add new helper routine ps3_vuart_clear_rx_bytes() to flush rx buffer.
- Add new variable probe_mutex to serialize probe and destroy routines.
- Rename some symbols.
- Add platform check in ps3_vuart_bus_init().
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
上级 724339d7
此差异已折叠。
......@@ -21,6 +21,36 @@
#if !defined(_PS3_VUART_H)
#define _PS3_VUART_H
#include <asm/ps3.h>
struct ps3_vuart_stats {
unsigned long bytes_written;
unsigned long bytes_read;
unsigned long tx_interrupts;
unsigned long rx_interrupts;
unsigned long disconnect_interrupts;
};
/**
* struct ps3_vuart_port_priv - private vuart device data.
*/
struct ps3_vuart_port_priv {
unsigned int port_number;
u64 interrupt_mask;
struct {
spinlock_t lock;
struct list_head head;
} tx_list;
struct {
unsigned long bytes_held;
spinlock_t lock;
struct list_head head;
} rx_list;
struct ps3_vuart_stats stats;
};
/**
* struct ps3_vuart_port_driver - a driver for a device on a vuart port
*/
......
......@@ -355,13 +355,7 @@ extern struct bus_type ps3_system_bus_type;
/* vuart routines */
struct ps3_vuart_stats {
unsigned long bytes_written;
unsigned long bytes_read;
unsigned long tx_interrupts;
unsigned long rx_interrupts;
unsigned long disconnect_interrupts;
};
struct ps3_vuart_port_priv;
/**
* struct ps3_vuart_port_device - a device on a vuart port
......@@ -370,20 +364,8 @@ struct ps3_vuart_stats {
struct ps3_vuart_port_device {
enum ps3_match_id match_id;
struct device core;
struct ps3_vuart_port_priv* priv; /* private driver variables */
/* private driver variables */
unsigned int port_number;
u64 interrupt_mask;
struct {
spinlock_t lock;
struct list_head head;
} tx_list;
struct {
unsigned long bytes_held;
spinlock_t lock;
struct list_head head;
} rx_list;
struct ps3_vuart_stats stats;
};
int ps3_vuart_port_device_register(struct ps3_vuart_port_device *dev);
......
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