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diff --git a/include/linux/sdla_asy.h b/include/linux/sdla_asy.h
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1/*****************************************************************************
2* sdla_asy.h Header file for the Sangoma S508/S514 asynchronous code API
3*
4* Author: Gideon Hack
5*
6* Copyright: (c) 2000 Sangoma Technologies Inc.
7*
8* This program is free software; you can redistribute it and/or
9* modify it under the terms of the GNU General Public License
10* as published by the Free Software Foundation; either version
11* 2 of the License, or (at your option) any later version.
12* ============================================================================
13*
14* Jan 28, 2000 Gideon Hack Initial Version
15*
16*****************************************************************************/
17
18
19#ifndef _WANPIPE_ASYNC_H
20#define _WANPIPE_ASYNC_H
21
22/* ----------------------------------------------------------------------------
23 * Interface commands
24 * --------------------------------------------------------------------------*/
25
26#define SET_ASY_CONFIGURATION 0xE2 /* set the asychronous operational configuration */
27#define READ_ASY_CONFIGURATION 0xE3 /* read the current asychronous operational configuration */
28#define ENABLE_ASY_COMMUNICATIONS 0xE4 /* enable asychronous communications */
29#define DISABLE_ASY_COMMUNICATIONS 0xE5 /* disable asychronous communications */
30#define READ_ASY_OPERATIONAL_STATS 0xE7 /* retrieve the asychronous operational statistics */
31#define FLUSH_ASY_OPERATIONAL_STATS 0xE8 /* flush the asychronous operational statistics */
32#define TRANSMIT_ASY_BREAK_SIGNAL 0xEC /* transmit an asychronous break signal */
33
34
35
36/* ----------------------------------------------------------------------------
37 * Return codes from interface commands
38 * --------------------------------------------------------------------------*/
39
40#define COMMAND_INVALID_FOR_PORT 0x50 /* the command is invalid for the selected port */
41#define DISABLE_ASY_COMMS_BEFORE_CFG 0xE1 /* communications must be disabled before setting the configuration */
42#define ASY_COMMS_ENABLED 0xE1 /* communications are currently enabled */
43#define ASY_COMMS_DISABLED 0xE1 /* communications are currently disabled */
44#define ASY_CFG_BEFORE_COMMS_ENABLED 0xE2 /* perform a SET_ASY_CONFIGURATION before enabling comms */
45#define LGTH_ASY_CFG_DATA_INVALID 0xE2 /* the length of the passed configuration data is invalid */
46#define INVALID_ASY_CFG_DATA 0xE3 /* the passed configuration data is invalid */
47#define ASY_BREAK_SIGNAL_BUSY 0xEC /* a break signal is being transmitted */
48
49
50
51/* ----------------------------------------------------------------------------
52 * Constants for the SET_ASY_CONFIGURATION/READ_ASY_CONFIGURATION command
53 * --------------------------------------------------------------------------*/
54
55/* the asynchronous configuration structure */
56typedef struct {
57 unsigned long baud_rate PACKED; /* the baud rate */
58 unsigned short line_config_options PACKED; /* line configuration options */
59 unsigned short modem_config_options PACKED; /* modem configuration options */
60 unsigned short asy_API_options PACKED; /* asynchronous API options */
61 unsigned short asy_protocol_options PACKED; /* asynchronous protocol options */
62 unsigned short Tx_bits_per_char PACKED; /* number of bits per tx character */
63 unsigned short Rx_bits_per_char PACKED; /* number of bits per received character */
64 unsigned short stop_bits PACKED; /* number of stop bits per character */
65 unsigned short parity PACKED; /* parity definition */
66 unsigned short break_timer PACKED; /* the break signal timer */
67 unsigned short asy_Rx_inter_char_timer PACKED; /* the receive inter-character timer */
68 unsigned short asy_Rx_complete_length PACKED; /* the receive 'buffer complete' length */
69 unsigned short XON_char PACKED; /* the XON character */
70 unsigned short XOFF_char PACKED; /* the XOFF character */
71 unsigned short asy_statistics_options PACKED; /* async operational stat options */
72 unsigned long ptr_shared_mem_info_struct PACKED;/* ptr to the shared memory area information structure */
73 unsigned long ptr_asy_Tx_stat_el_cfg_struct PACKED;/* ptr to the transmit status element configuration structure */
74 unsigned long ptr_asy_Rx_stat_el_cfg_struct PACKED;/* ptr to the receive status element configuration structure */
75} ASY_CONFIGURATION_STRUCT;
76
77/* permitted minimum and maximum values for setting the asynchronous configuration */
78#define MIN_ASY_BAUD_RATE 50 /* maximum baud rate */
79#define MAX_ASY_BAUD_RATE 250000 /* minimum baud rate */
80#define MIN_ASY_BITS_PER_CHAR 5 /* minimum number of bits per character */
81#define MAX_ASY_BITS_PER_CHAR 8 /* maximum number of bits per character */
82#define MIN_BREAK_TMR_VAL 0 /* minimum break signal timer */
83#define MAX_BREAK_TMR_VAL 5000 /* maximum break signal timer */
84#define MIN_ASY_RX_INTER_CHAR_TMR 0 /* minimum receive inter-character timer */
85#define MAX_ASY_RX_INTER_CHAR_TMR 30000 /* maximum receive inter-character timer */
86#define MIN_ASY_RX_CPLT_LENGTH 0 /* minimum receive 'length complete' value */
87#define MAX_ASY_RX_CPLT_LENGTH 2000 /* maximum receive 'length complete' value */
88
89/* bit settings for the 'asy_API_options' */
90#define ASY_RX_DATA_TRANSPARENT 0x0001 /* do not strip parity and unused bits from received characters */
91
92/* bit settings for the 'asy_protocol_options' */
93#define ASY_RTS_HS_FOR_RX 0x0001 /* RTS handshaking is used for reception control */
94#define ASY_XON_XOFF_HS_FOR_RX 0x0002 /* XON/XOFF handshaking is used for reception control */
95#define ASY_XON_XOFF_HS_FOR_TX 0x0004 /* XON/XOFF handshaking is used for transmission control */
96#define ASY_DCD_HS_FOR_TX 0x0008 /* DCD handshaking is used for transmission control */
97#define ASY_CTS_HS_FOR_TX 0x0020 /* CTS handshaking is used for transmission control */
98
99/* bit settings for the 'stop_bits' definition */
100#define ONE_STOP_BIT 1 /* representation for 1 stop bit */
101#define TWO_STOP_BITS 2 /* representation for 2 stop bits */
102#define ONE_AND_A_HALF_STOP_BITS 3 /* representation for 1.5 stop bits */
103
104/* bit settings for the 'parity' definition */
105#define NO_PARITY 0 /* representation for no parity */
106#define ODD_PARITY 1 /* representation for odd parity */
107#define EVEN_PARITY 2 /* representation for even parity */
108
109
110
111/* ----------------------------------------------------------------------------
112 * Constants for the READ_COMMS_ERROR_STATS command (asynchronous mode)
113 * --------------------------------------------------------------------------*/
114
115/* the communications error statistics structure */
116typedef struct {
117 unsigned short Rx_overrun_err_count PACKED; /* receiver overrun error count */
118 unsigned short Rx_parity_err_count PACKED; /* parity errors received count */
119 unsigned short Rx_framing_err_count PACKED; /* framing errors received count */
120 unsigned short comms_err_stat_reserved_1 PACKED;/* reserved for later use */
121 unsigned short comms_err_stat_reserved_2 PACKED;/* reserved for later use */
122 unsigned short comms_err_stat_reserved_3 PACKED;/* reserved for later use */
123 unsigned short comms_err_stat_reserved_4 PACKED;/* reserved for later use */
124 unsigned short comms_err_stat_reserved_5 PACKED;/* reserved for later use */
125 unsigned short DCD_state_change_count PACKED; /* DCD state change count */
126 unsigned short CTS_state_change_count PACKED; /* CTS state change count */
127} ASY_COMMS_ERROR_STATS_STRUCT;
128
129
130
131/* ----------------------------------------------------------------------------
132 * Constants for the READ_ASY_OPERATIONAL_STATS command
133 * --------------------------------------------------------------------------*/
134
135/* the asynchronous operational statistics structure */
136typedef struct {
137
138 /* Data transmission statistics */
139 unsigned long Data_blocks_Tx_count PACKED;/* number of blocks transmitted */
140 unsigned long Data_bytes_Tx_count PACKED;/* number of bytes transmitted */
141 unsigned long Data_Tx_throughput PACKED;/* transmit throughput */
142 unsigned long no_ms_for_Data_Tx_thruput_comp PACKED;/* millisecond time used for the Tx throughput computation */
143 unsigned long Tx_Data_discard_lgth_err_count PACKED;/* number of Data blocks discarded (length error) */
144 unsigned long reserved_Data_frm_Tx_stat1 PACKED;/* reserved for later use */
145 unsigned long reserved_Data_frm_Tx_stat2 PACKED;/* reserved for later use */
146 unsigned long reserved_Data_frm_Tx_stat3 PACKED;/* reserved for later use */
147
148 /* Data reception statistics */
149 unsigned long Data_blocks_Rx_count PACKED;/* number of blocks received */
150 unsigned long Data_bytes_Rx_count PACKED;/* number of bytes received */
151 unsigned long Data_Rx_throughput PACKED;/* receive throughput */
152 unsigned long no_ms_for_Data_Rx_thruput_comp PACKED;/* millisecond time used for the Rx throughput computation */
153 unsigned long Rx_Data_bytes_discard_count PACKED;/* received Data bytes discarded */
154 unsigned long reserved_Data_frm_Rx_stat1 PACKED;/* reserved for later use */
155
156 /* handshaking protocol statistics */
157 unsigned short XON_chars_Tx_count PACKED; /* number of XON characters transmitted */
158 unsigned short XOFF_chars_Tx_count PACKED; /* number of XOFF characters transmitted */
159 unsigned short XON_chars_Rx_count PACKED; /* number of XON characters received */
160 unsigned short XOFF_chars_Rx_count PACKED; /* number of XOFF characters received */
161 unsigned short Tx_halt_modem_low_count PACKED; /* number of times Tx halted (modem line low) */
162 unsigned short Rx_halt_RTS_low_count PACKED; /* number of times Rx halted by setting RTS low */
163 unsigned long reserved_handshaking_stat1 PACKED;/* reserved for later use */
164
165 /* break statistics */
166 unsigned short break_Tx_count PACKED; /* number of break sequences transmitted */
167 unsigned short break_Rx_count PACKED; /* number of break sequences received */
168 unsigned long reserved_break_stat1 PACKED;/* reserved for later use */
169
170 /* miscellaneous statistics */
171 unsigned long reserved_misc_stat1 PACKED; /* reserved for later use */
172 unsigned long reserved_misc_stat2 PACKED; /* reserved for later use */
173
174} ASY_OPERATIONAL_STATS_STRUCT;
175
176
177
178/* ----------------------------------------------------------------------------
179 * Constants for Data transmission
180 * --------------------------------------------------------------------------*/
181
182/* the Data block transmit status element configuration structure */
183typedef struct {
184 unsigned short number_Tx_status_elements PACKED; /* number of transmit status elements */
185 unsigned long base_addr_Tx_status_elements PACKED; /* base address of the transmit element list */
186 unsigned long next_Tx_status_element_to_use PACKED; /* pointer to the next transmit element to be used */
187} ASY_TX_STATUS_EL_CFG_STRUCT;
188
189
190/* the Data block transmit status element structure */
191typedef struct {
192 unsigned char opp_flag PACKED; /* opp flag */
193 unsigned short data_length PACKED; /* length of the block to be transmitted */
194 unsigned char reserved_1 PACKED; /* reserved for internal use */
195 unsigned long reserved_2 PACKED; /* reserved for internal use */
196 unsigned long reserved_3 PACKED; /* reserved for internal use */
197 unsigned long ptr_data_bfr PACKED; /* pointer to the data area */
198} ASY_DATA_TX_STATUS_EL_STRUCT;
199
200
201
202/* ----------------------------------------------------------------------------
203 * Constants for Data reception
204 * --------------------------------------------------------------------------*/
205
206/* the Data block receive status element configuration structure */
207typedef struct {
208 unsigned short number_Rx_status_elements PACKED;/* number of receive status elements */
209 unsigned long base_addr_Rx_status_elements PACKED;/* base address of the receive element list */
210 unsigned long next_Rx_status_element_to_use PACKED;/* pointer to the next receive element to be used */
211 unsigned long base_addr_Rx_buffer PACKED;/* base address of the receive data buffer */
212 unsigned long end_addr_Rx_buffer PACKED;/* end address of the receive data buffer */
213} ASY_RX_STATUS_EL_CFG_STRUCT;
214
215/* the Data block receive status element structure */
216typedef struct {
217 unsigned char opp_flag PACKED; /* opp flag */
218 unsigned short data_length PACKED; /* length of the received data block */
219 unsigned char reserved_1 PACKED; /* reserved for internal use */
220 unsigned short time_stamp PACKED; /* receive time stamp (HDLC_STREAMING_MODE) */
221 unsigned short data_buffered PACKED; /* the number of data bytes still buffered */
222 unsigned long reserved_2 PACKED; /* reserved for internal use */
223 unsigned long ptr_data_bfr PACKED; /* pointer to the data area */
224} ASY_DATA_RX_STATUS_EL_STRUCT;
225
226#endif
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