171 lines
4.6 KiB
C
171 lines
4.6 KiB
C
/*
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* dscore.h
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*
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* Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __DSCORE_H
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#define __DSCORE_H
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#include <linux/usb.h>
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#include <asm/atomic.h>
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/* COMMAND TYPE CODES */
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#define CONTROL_CMD 0x00
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#define COMM_CMD 0x01
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#define MODE_CMD 0x02
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/* CONTROL COMMAND CODES */
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#define CTL_RESET_DEVICE 0x0000
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#define CTL_START_EXE 0x0001
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#define CTL_RESUME_EXE 0x0002
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#define CTL_HALT_EXE_IDLE 0x0003
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#define CTL_HALT_EXE_DONE 0x0004
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#define CTL_FLUSH_COMM_CMDS 0x0007
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#define CTL_FLUSH_RCV_BUFFER 0x0008
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#define CTL_FLUSH_XMT_BUFFER 0x0009
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#define CTL_GET_COMM_CMDS 0x000A
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/* MODE COMMAND CODES */
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#define MOD_PULSE_EN 0x0000
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#define MOD_SPEED_CHANGE_EN 0x0001
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#define MOD_1WIRE_SPEED 0x0002
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#define MOD_STRONG_PU_DURATION 0x0003
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#define MOD_PULLDOWN_SLEWRATE 0x0004
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#define MOD_PROG_PULSE_DURATION 0x0005
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#define MOD_WRITE1_LOWTIME 0x0006
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#define MOD_DSOW0_TREC 0x0007
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/* COMMUNICATION COMMAND CODES */
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#define COMM_ERROR_ESCAPE 0x0601
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#define COMM_SET_DURATION 0x0012
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#define COMM_BIT_IO 0x0020
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#define COMM_PULSE 0x0030
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#define COMM_1_WIRE_RESET 0x0042
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#define COMM_BYTE_IO 0x0052
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#define COMM_MATCH_ACCESS 0x0064
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#define COMM_BLOCK_IO 0x0074
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#define COMM_READ_STRAIGHT 0x0080
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#define COMM_DO_RELEASE 0x6092
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#define COMM_SET_PATH 0x00A2
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#define COMM_WRITE_SRAM_PAGE 0x00B2
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#define COMM_WRITE_EPROM 0x00C4
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#define COMM_READ_CRC_PROT_PAGE 0x00D4
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#define COMM_READ_REDIRECT_PAGE_CRC 0x21E4
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#define COMM_SEARCH_ACCESS 0x00F4
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/* Communication command bits */
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#define COMM_TYPE 0x0008
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#define COMM_SE 0x0008
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#define COMM_D 0x0008
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#define COMM_Z 0x0008
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#define COMM_CH 0x0008
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#define COMM_SM 0x0008
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#define COMM_R 0x0008
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#define COMM_IM 0x0001
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#define COMM_PS 0x4000
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#define COMM_PST 0x4000
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#define COMM_CIB 0x4000
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#define COMM_RTS 0x4000
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#define COMM_DT 0x2000
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#define COMM_SPU 0x1000
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#define COMM_F 0x0800
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#define COMM_NTP 0x0400
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#define COMM_ICP 0x0200
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#define COMM_RST 0x0100
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#define PULSE_PROG 0x01
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#define PULSE_SPUE 0x02
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#define BRANCH_MAIN 0xCC
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#define BRANCH_AUX 0x33
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/*
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* Duration of the strong pull-up pulse in milliseconds.
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*/
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#define PULLUP_PULSE_DURATION 750
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/* Status flags */
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#define ST_SPUA 0x01 /* Strong Pull-up is active */
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#define ST_PRGA 0x02 /* 12V programming pulse is being generated */
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#define ST_12VP 0x04 /* external 12V programming voltage is present */
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#define ST_PMOD 0x08 /* DS2490 powered from USB and external sources */
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#define ST_HALT 0x10 /* DS2490 is currently halted */
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#define ST_IDLE 0x20 /* DS2490 is currently idle */
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#define ST_EPOF 0x80
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#define SPEED_NORMAL 0x00
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#define SPEED_FLEXIBLE 0x01
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#define SPEED_OVERDRIVE 0x02
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#define NUM_EP 4
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#define EP_CONTROL 0
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#define EP_STATUS 1
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#define EP_DATA_OUT 2
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#define EP_DATA_IN 3
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struct ds_device
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{
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struct usb_device *udev;
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struct usb_interface *intf;
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int ep[NUM_EP];
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atomic_t refcnt;
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};
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struct ds_status
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{
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u8 enable;
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u8 speed;
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u8 pullup_dur;
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u8 ppuls_dur;
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u8 pulldown_slew;
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u8 write1_time;
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u8 write0_time;
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u8 reserved0;
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u8 status;
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u8 command0;
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u8 command1;
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u8 command_buffer_status;
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u8 data_out_buffer_status;
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u8 data_in_buffer_status;
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u8 reserved1;
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u8 reserved2;
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};
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int ds_touch_bit(struct ds_device *, u8, u8 *);
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int ds_read_byte(struct ds_device *, u8 *);
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int ds_read_bit(struct ds_device *, u8 *);
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int ds_write_byte(struct ds_device *, u8);
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int ds_write_bit(struct ds_device *, u8);
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int ds_start_pulse(struct ds_device *, int);
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int ds_set_speed(struct ds_device *, int);
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int ds_reset(struct ds_device *, struct ds_status *);
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int ds_detect(struct ds_device *, struct ds_status *);
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int ds_stop_pulse(struct ds_device *, int);
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struct ds_device * ds_get_device(void);
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void ds_put_device(struct ds_device *);
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int ds_write_block(struct ds_device *, u8 *, int);
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int ds_read_block(struct ds_device *, u8 *, int);
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#endif /* __DSCORE_H */
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