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Diffstat (limited to 'gdb/rdi-share/devsw.h')
| -rw-r--r-- | gdb/rdi-share/devsw.h | 275 |
1 files changed, 0 insertions, 275 deletions
diff --git a/gdb/rdi-share/devsw.h b/gdb/rdi-share/devsw.h deleted file mode 100644 index 6a2279d94fb..00000000000 --- a/gdb/rdi-share/devsw.h +++ /dev/null @@ -1,275 +0,0 @@ -/* - * Copyright (C) 1995 Advanced RISC Machines Limited. All rights reserved. - * - * This software may be freely used, copied, modified, and distributed - * provided that the above copyright notice is preserved in all copies of the - * software. - */ - -/* -*-C-*- - * - * $Revision$ - * $Date$ - * - */ -#ifndef angsd_devsw_h -#define angsd_devsw_h - -#include "devclnt.h" -#include "adperr.h" -#include "drivers.h" - -#ifndef __cplusplus -typedef struct Packet Packet; -typedef struct DevSWState DevSWState; -#endif - -/* - * the basic structure used for passing packets around - */ -struct Packet -{ - struct Packet *pk_next; /* XXX first field in struct */ - unsigned int pk_length; - unsigned char *pk_buffer; -}; - -/* - * control structure, used for maintaining device switcher state - */ -struct DevSWState -{ - unsigned int ds_opendevchans; /* bitmap of open device channels */ - - /* - * queue of packets read for the various device channels - */ - Packet *ds_readqueue[DC_NUM_CHANNELS]; - - /* - * structures for managing active read and write operations - */ - Packet *ds_nextreadpacket; - DriverCall ds_activeread; - DriverCall ds_activewrite; -}; - -#ifdef __cplusplus - extern "C" { -#endif - -/* - * Function: DevSW_AllocatePacket - * Purpose: Claim some memory to hold a struct Packet, and the buffer for - * that packet. - * - * Params: - * Input: length Size of the buffer in struct Packet. - * - * Returns: - * OK: Pointer to the newly malloc()ed Packet. - * Error: NULL - */ -Packet *DevSW_AllocatePacket(const unsigned int length); - -/* - * Function: DevSW_FreePacket - * Purpose: Free the memory associated with a struct Packet. - * - * Pre-conditions The structure must have been originally claimed - * via DevSW_AllocatePacket. - * - * Params: - * Input: pk The packet to be freed. - * - * Returns: Nothing - */ -void DevSW_FreePacket(Packet *pk); - -/* - * Function: DevSW_Open - * Purpose: Open the specified device driver - * - * Params: - * Input: name Identifies which device to open. This can either be - * a host specific identifier (e.g. "/dev/ttya", - * "COM1:"), or a number which is used to refer to - * `standard' interfaces, so "1" would be the first host - * interface, "2" the second, and so on. - * - * arg Driver specific arguments. For example, some serial - * drivers accept speed and control arguments such as - * "9600" or "19200/NO_BREAK". These arguments are - * completely free-form: it is the individual drivers - * which do the necessary interpretation. - * - * type The type of packet the caller is interested in. Only - * one open is allowed for each type of packet. - * - * In/Out: device The device driver to open - * - * Returns: - * OK: adp_ok - * Error: adp_device_open_failed - * adp_device_already_open - * adp_malloc_failure - */ -AdpErrs DevSW_Open(DeviceDescr *device, const char *name, const char *arg, - const DevChanID type); - -/* - * Function: DevSW_Match - * Purpose: Minimal veneer for DeviceMatch - * - * Params: - * Input: device The device driver to match. - * - * name Identifies which device to open. This can either be - * a host specific identifier (e.g. "/dev/ttya", - * "COM1:"), or a number which is used to refer to - * `standard' interfaces, so "1" would be the first host - * interface, "2" the second, and so on. - * - * arg Driver specific arguments. For example, some serial - * drivers accept speed and control arguments such as - * "9600" or "19200/NO_BREAK". These arguments are - * completely free-form: it is the individual drivers - * which do the necessary interpretation. - * - * Returns: - * OK: adp_ok - * Error: adp_failed - */ -AdpErrs DevSW_Match(const DeviceDescr *device, const char *name, - const char *arg); - -/* - * Function: DevSW_Close - * Purpose: Close the specified device driver. All packets of the type - * used by the caller held within the switching layer will - * be discarded. - * - * Pre-conditions: Device must have been previously opened. - * - * Params: - * Input: device The device driver to close - * - * type The type of packet the caller was interested in. - * - * Returns: - * OK: adp_ok - * Error: adp_device_not_open - */ -AdpErrs DevSW_Close(DeviceDescr *device, const DevChanID type); - -/* - * Function: DevSW_Read - * Purpose: Read a packet of appropriate type from the device driver - * - * Params: - * Input: device The device driver to read packet from. - * - * type The type of packet the caller is interested in. - * - * Output: packet Pointer to new packet (if one is available) - * NULL (if no complete packet is available) - * - * Input: block If TRUE, read may safely block for a short period - * of time (say up to 20ms), to avoid high CPU load - * whilst waiting for a reply. - * If FALSE, read MUST NOT block. - * - * Returns: - * OK: adp_ok - * Error: adp_bad_packet - * - * Post-conditions: The calling function is responsible for freeing the - * resources used by the packet when it is no longer - * needed. - */ -AdpErrs DevSW_Read(const DeviceDescr *device, const DevChanID type, - Packet **packet, bool block); - -/* - * Function: DevSW_Write - * Purpose: Try to write a packet to the device driver. The write will - * be bounced if another write is still in progress. - * - * Params: - * Input: device The device driver to write a packet to. - * - * packet The packet to be written. - * - * type The type to be assigned to the packet. - * - * Returns: - * OK: adp_ok - * Error: adp_illegal_args - * adp_write_busy - * - * Post-conditions: The calling function retains "ownership" of the packet, - * i.e. it is responsible for freeing the resources used - * by the packet when it is no longer needed. - */ -AdpErrs DevSW_Write(const DeviceDescr *device, Packet *packet, DevChanID type); - -/* - * Function: DevSW_FlushPendingWrite - * Purpose: If a write is in progress, give it a chance to finish. - * - * Params: - * Input: device The device driver to flush. - * - * Returns: - * adp_ok no pending write, or write flushed completely - * adp_write_busy pending write not flushed completely - */ -AdpErrs DevSW_FlushPendingWrite(const DeviceDescr *device); - -/* - * Function: DevSW_Ioctl - * Purpose: Perform miscellaneous control operations. This is a minimal - * veneer to DeviceIoctl. - * - * Params: - * Input: device The device driver to control. - * - * opcode Reason code indicating the operation to perform. - * - * In/Out: args Pointer to opcode-sensitive arguments/result space. - * - * Returns: - * OK: adp_ok - * Error: adp_failed - */ -AdpErrs DevSW_Ioctl(const DeviceDescr *device, const int opcode, void *args); - -/* - * Function: DevSW_WriteFinished - * Purpose: Return TRUE if the active device has finished writing - * the last packet to be sent, or FALSE if a packet is still - * being transmitted. - * - * Params: - * Input: device The device driver to check. - * - * Returns: - * TRUE: write finished or inactive - * FALSE: write in progress - */ -bool DevSW_WriteFinished(const DeviceDescr *device); - - -/* - * set filename and enable/disable logginf of ADP packets - */ -void DevSW_SetLogfile(const char *filename); -void DevSW_SetLogEnable(int logEnableFlag); - -#ifdef __cplusplus - } -#endif - -#endif /* ndef angsd_devsw_h */ - -/* EOF devsw.h */ |