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Added comment to remove use of TxBuffer ring buffer in all libchip drivers.

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The scheme used in the mc68681 is the one to follow.
This commit is contained in:
Joel Sherrill
1998-07-15 21:40:42 +00:00
parent 0f613361b7
commit c0573d7e5d
2 changed files with 28 additions and 2 deletions
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c/src/lib/libchip/serial/serial.h
+14 -1
View File
@@ -52,11 +52,23 @@ typedef struct _console_flow {
int (*deviceStartRemoteTx)(int minor);
} console_flow;
typedef enum {
SERIAL_MC68681, /* Motorola MC68681 or Exar 88681 */
SERIAL_NS16550, /* National Semiconductor NS16550 */
SERIAL_Z85C30, /* Zilog Z85C30 */
SERIAL_CUSTOM /* BSP specific driver */
} console_devs;
/*
* Each field is interpreted thus:
*
* sDeviceName This is the name of the device.
*
* deviceType This indicates the chip type. It is especially important when
* multiple devices share the same interrupt vector and must be
* distinguished.
*
* pDeviceFns This is a pointer to the set of driver routines to use.
*
* pDeviceFlow This is a pointer to the set of flow control routines to
@@ -112,6 +124,7 @@ typedef struct _console_flow {
typedef struct _console_tbl {
char *sDeviceName;
console_devs deviceType;
console_fns *pDeviceFns;
boolean (*deviceProbe)(int minor);
console_flow *pDeviceFlow;
@@ -132,7 +145,7 @@ typedef struct _console_tbl {
typedef struct _console_data {
void *termios_data;
volatile boolean bActive;
volatile Ring_buffer_t TxBuffer;
volatile Ring_buffer_t TxBuffer; /* XXX remove from other drivers */
/*
* This field may be used for any purpose required by the driver
*/
c/src/libchip/serial/serial.h
+14 -1
View File
@@ -52,11 +52,23 @@ typedef struct _console_flow {
int (*deviceStartRemoteTx)(int minor);
} console_flow;
typedef enum {
SERIAL_MC68681, /* Motorola MC68681 or Exar 88681 */
SERIAL_NS16550, /* National Semiconductor NS16550 */
SERIAL_Z85C30, /* Zilog Z85C30 */
SERIAL_CUSTOM /* BSP specific driver */
} console_devs;
/*
* Each field is interpreted thus:
*
* sDeviceName This is the name of the device.
*
* deviceType This indicates the chip type. It is especially important when
* multiple devices share the same interrupt vector and must be
* distinguished.
*
* pDeviceFns This is a pointer to the set of driver routines to use.
*
* pDeviceFlow This is a pointer to the set of flow control routines to
@@ -112,6 +124,7 @@ typedef struct _console_flow {
typedef struct _console_tbl {
char *sDeviceName;
console_devs deviceType;
console_fns *pDeviceFns;
boolean (*deviceProbe)(int minor);
console_flow *pDeviceFlow;
@@ -132,7 +145,7 @@ typedef struct _console_tbl {
typedef struct _console_data {
void *termios_data;
volatile boolean bActive;
volatile Ring_buffer_t TxBuffer;
volatile Ring_buffer_t TxBuffer; /* XXX remove from other drivers */
/*
* This field may be used for any purpose required by the driver
*/