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Hamlib/rigs/icom/frame.c

618 wiersze
16 KiB
C
Czysty Wina Historia

/*
* Hamlib CI-V backend - low level communication routines
* Copyright (c) 2000-2010 by Stephane Fillod
*
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <string.h> /* String function definitions */
#include <unistd.h> /* UNIX standard function definitions */
#include "hamlib/rig.h"
#include "serial.h"
#include "misc.h"
#include "icom.h"
#include "icom_defs.h"
#include "frame.h"
/*
* Build a CI-V frame.
* The whole frame is placed in frame[],
* "re_id" is the transceiver's CI-V address,
* "cmd" is the Command number,
* "subcmd" is the Sub command number, set to -1 if not present in frame,
* if the frame has no data, then the "data" pointer must be NULL,
* and data_len==0.
* "data_len" holds the Data area length pointed by the "data" pointer.
* REM: if "data" is NULL, then "data_len" MUST be 0.
*
* NB: the frame array must be big enough to hold the frame.
* The smallest frame is 6 bytes, the biggest is at least 13 bytes.
*/
int make_cmd_frame(char frame[], char re_id, char ctrl_id, char cmd, int subcmd,
const unsigned char *data, int data_len)
{
int i = 0;
#if 0
frame[i++] = PAD; /* give old rigs a chance to flush their rx buffers */
#endif
frame[i++] = PR; /* Preamble code */
frame[i++] = PR;
frame[i++] = re_id;
frame[i++] = ctrl_id;
frame[i++] = cmd;
if (subcmd != -1)
{
#ifdef MULTIB_SUBCMD
register int j;
if ((j = subcmd & 0xff0000)) /* allows multi-byte subcmd for dsp rigs */
{
frame[i++] = j >> 16;
frame[i++] = (subcmd & 0xff00) >> 8;
}
else if ((j = subcmd & 0xff00)) { frame[i++] = j >> 8; }
#endif
frame[i++] = subcmd & 0xff;
}
if (data_len != 0)
{
memcpy(frame + i, data, data_len);
i += data_len;
}
frame[i++] = FI; /* EOM code */
return i;
}
/*
* icom_one_transaction
*
* We assume that rig!=NULL, rig->state!= NULL, payload!=NULL, data!=NULL, data_len!=NULL
* Otherwise, you'll get a nice seg fault. You've been warned!
* payload can be NULL if payload_len == 0
* subcmd can be equal to -1 (no subcmd wanted)
* if no answer is to be expected, data_len must be set to NULL to tell so
*
* return RIG_OK if transaction completed,
* or a negative value otherwise indicating the error.
*/
int icom_one_transaction(RIG *rig, int cmd, int subcmd,
const unsigned char *payload, int payload_len, unsigned char *data,
int *data_len)
{
struct icom_priv_data *priv;
const struct icom_priv_caps *priv_caps;
struct rig_state *rs;
// this buf needs to be large enough for 0xfe strings for power up
// at 115,200 this is now at least 150
unsigned char buf[200];
unsigned char sendbuf[MAXFRAMELEN];
int frm_len, retval;
int ctrl_id;
rs = &rig->state;
priv = (struct icom_priv_data *)rs->priv;
priv_caps = (struct icom_priv_caps *)rig->caps->priv;
ctrl_id = priv_caps->serial_full_duplex == 0 ? CTRLID : 0x80;
frm_len = make_cmd_frame((char *) sendbuf, priv->re_civ_addr, ctrl_id, cmd,
subcmd, payload, payload_len);
/*
* should check return code and that write wrote cmd_len chars!
*/
// cppcheck-suppress *
Hold_Decode(rig);
serial_flush(&rs->rigport);
retval = write_block(&rs->rigport, (char *) sendbuf, frm_len);
if (retval != RIG_OK)
{
// cppcheck-suppress *
Unhold_Decode(rig);
return retval;
}
if (!priv_caps->serial_full_duplex && !priv->serial_USB_echo_off)
{
/*
* read what we just sent, because TX and RX are looped,
* and discard it...
* - if what we read is not what we sent, then it means
* a collision on the CI-V bus occured!
* - if we get a timeout, then retry to send the frame,
* up to rs->retry times.
*/
retval = read_icom_frame(&rs->rigport, buf, sizeof(buf));
if (retval == -RIG_ETIMEOUT || retval == 0)
{
/* Nothing recieved, CI-V interface is not echoing */
// cppcheck-suppress *
Unhold_Decode(rig);
return -RIG_BUSERROR;
}
if (retval < 0)
{
/* Other error, return it */
// cppcheck-suppress *
Unhold_Decode(rig);
return retval;
}
if (retval < 1)
{
return -RIG_EPROTO;
}
switch (buf[retval - 1])
{
case COL:
/* Collision */
// cppcheck-suppress *
Unhold_Decode(rig);
return -RIG_BUSBUSY;
case FI:
/* Ok, normal frame */
break;
default:
/* Timeout after reading at least one character */
/* Problem on ci-v bus? */
// cppcheck-suppress *
Unhold_Decode(rig);
return -RIG_BUSERROR;
}
if (retval != frm_len)
{
/* Not the same length??? */
/* Problem on ci-v bus? */
/* Someone else got a packet in? */
// cppcheck-suppress *
Unhold_Decode(rig);
return -RIG_EPROTO;
}
if (memcmp(buf, sendbuf, frm_len))
{
/* Frames are different? */
/* Problem on ci-v bus? */
/* Someone else got a packet in? */
// cppcheck-suppress *
Unhold_Decode(rig);
return -RIG_EPROTO;
}
}
/*
* expect an answer?
*/
if (data_len == NULL)
{
// cppcheck-suppress *
Unhold_Decode(rig);
return RIG_OK;
}
/*
* wait for ACK ...
* FIXME: handle pading/collisions
* ACKFRMLEN is the smallest frame we can expect from the rig
*/
frm_len = read_icom_frame(&rs->rigport, buf, sizeof(buf));
if (memcmp(buf, sendbuf, frm_len) == 0 && priv->serial_USB_echo_off)
{
// Hmmm -- got an echo back when not expected so let's change
priv->serial_USB_echo_off = 0;
// And try again
frm_len = read_icom_frame(&rs->rigport, buf, sizeof(buf));
}
// cppcheck-suppress *
Unhold_Decode(rig);
if (frm_len < 0)
{
/* RIG_TIMEOUT: timeout getting response, return timeout */
/* other error: return it */
return frm_len;
}
if (frm_len < 1)
{
return -RIG_EPROTO;
}
switch (buf[frm_len - 1])
{
case COL:
/* Collision */
return -RIG_BUSBUSY;
case FI:
/* Ok, normal frame */
break;
default:
/* Timeout after reading at least one character */
/* Problem on ci-v bus? */
return -RIG_EPROTO;
}
if (frm_len < ACKFRMLEN) { return -RIG_EPROTO; }
if (NAK == buf[frm_len - 2]) { return -RIG_ERJCTED; }
*data_len = frm_len - (ACKFRMLEN - 1);
memcpy(data, buf + 4, *data_len);
/*
* TODO: check addresses in reply frame
*/
return RIG_OK;
}
/*
* icom_transaction
*
* This function honors rigport.retry count.
*
* We assume that rig!=NULL, rig->state!= NULL, payload!=NULL, data!=NULL, data_len!=NULL
* Otherwise, you'll get a nice seg fault. You've been warned!
* payload can be NULL if payload_len == 0
* subcmd can be equal to -1 (no subcmd wanted)
*
* return RIG_OK if transaction completed,
* or a negative value otherwise indicating the error.
*/
int icom_transaction(RIG *rig, int cmd, int subcmd,
const unsigned char *payload, int payload_len, unsigned char *data,
int *data_len)
{
int retval, retry;
retry = rig->state.rigport.retry;
do
{
retval = icom_one_transaction(rig, cmd, subcmd, payload, payload_len, data,
data_len);
if (retval == RIG_OK || retval == -RIG_ERJCTED)
{
break;
}
hl_usleep(500 * 1000); // pause a half second
}
while (retry-- > 0);
if (retval != RIG_OK)
{
rig_debug(RIG_DEBUG_VERBOSE, "%s: failed: %s\n", __func__, rigerror(retval));
}
return retval;
}
/* used in read_icom_frame as end of block */
static const char icom_block_end[2] = {FI, COL};
#define icom_block_end_length 2
/*
* read_icom_frame
* read a whole CI-V frame (until 0xfd is encountered)
* TODO: strips padding/collisions
* FIXME: check return codes/bytes read
*/
int read_icom_frame(hamlib_port_t *p, unsigned char rxbuffer[],
int rxbuffer_len)
{
int read = 0;
int retries = 10;
char *rx_ptr = (char *)rxbuffer;
/*
* OK, now sometimes we may time out, e.g. the IC7000 can time out
* during a PTT operation. So, we will insure that the last thing we
* read was a proper end marker - if not, we will try again.
*/
do
{
int i = read_string(p, rx_ptr, MAXFRAMELEN - read,
icom_block_end, icom_block_end_length);
if (i < 0) /* die on errors */
{
return i;
}
if (i == 0) /* nothing read?*/
{
if (--retries <= 0) /* Tried enough times? */
{
return read;
}
}
/* OK, we got something. add it in and continue */
read += i;
rx_ptr += i;
}
while ((read < rxbuffer_len) && (rxbuffer[read - 1] != FI)
&& (rxbuffer[read - 1] != COL));
return read;
}
/*
* convert mode and width as expressed by Hamlib frontend
* to mode and passband data understandable by a CI-V rig
*
* if pd == -1, no passband data is to be sent
*
* return RIG_OK if everything's fine, negative value otherwise
*
* TODO: be more exhaustive
* assumes rig!=NULL
*/
int rig2icom_mode(RIG *rig, rmode_t mode, pbwidth_t width,
unsigned char *md, signed char *pd)
{
unsigned char icmode;
signed char icmode_ext;
icmode_ext = -1;
switch (mode)
{
case RIG_MODE_AM: icmode = S_AM; break;
case RIG_MODE_AMN: icmode = S_AMN; break;
case RIG_MODE_AMS: icmode = S_AMS; break;
case RIG_MODE_CW: icmode = S_CW; break;
case RIG_MODE_CWR: icmode = S_CWR; break;
case RIG_MODE_USB: icmode = S_USB; break;
case RIG_MODE_PKTUSB: icmode = S_USB; break;
case RIG_MODE_LSB: icmode = S_LSB; break;
case RIG_MODE_PKTLSB: icmode = S_LSB; break;
case RIG_MODE_RTTY: icmode = S_RTTY; break;
case RIG_MODE_RTTYR: icmode = S_RTTYR; break;
case RIG_MODE_PSK: icmode = S_PSK; break;
case RIG_MODE_PSKR: icmode = S_PSKR; break;
case RIG_MODE_FM: icmode = S_FM; break;
case RIG_MODE_FMN: icmode = S_FMN; break;
case RIG_MODE_WFM: icmode = S_WFM; break;
case RIG_MODE_P25: icmode = S_P25; break;
case RIG_MODE_DSTAR: icmode = S_DSTAR; break;
case RIG_MODE_DPMR: icmode = S_DPMR; break;
case RIG_MODE_NXDNVN: icmode = S_NXDNVN; break;
case RIG_MODE_NXDN_N: icmode = S_NXDN_N; break;
case RIG_MODE_DCR: icmode = S_DCR; break;
case RIG_MODE_DD: icmode = S_DD; break;
default:
rig_debug(RIG_DEBUG_ERR, "%s: Unsupported Hamlib mode %s\n", __func__,
rig_strrmode(mode));
return -RIG_EINVAL;
}
if (width != RIG_PASSBAND_NOCHANGE)
{
pbwidth_t medium_width = rig_passband_normal(rig, mode);
if (width == medium_width || width == RIG_PASSBAND_NORMAL)
{
icmode_ext =
-1; /* medium, no passband data-> rig default. Is medium always the default? */
}
else if (width < medium_width)
{
icmode_ext = PD_NARROW_3;
}
else
{
icmode_ext = PD_WIDE_3;
}
if (rig->caps->rig_model == RIG_MODEL_ICR7000)
{
if (mode == RIG_MODE_USB || mode == RIG_MODE_LSB)
{
icmode = S_R7000_SSB;
icmode_ext = 0x00;
}
else if (mode == RIG_MODE_AM && icmode_ext == -1)
{
icmode_ext = PD_WIDE_3; /* default to Wide */
}
}
}
*md = icmode;
*pd = icmode_ext;
return RIG_OK;
}
/*
* assumes rig!=NULL, mode!=NULL, width!=NULL
*/
void icom2rig_mode(RIG *rig, unsigned char md, int pd, rmode_t *mode,
pbwidth_t *width)
{
rig_debug(RIG_DEBUG_TRACE, "%s: mode=0x%02x, pd=%d\n", __func__, md, pd);
*width = RIG_PASSBAND_NORMAL;
switch (md)
{
case S_AM: if (rig->caps->rig_model == RIG_MODEL_ICR30 && pd == 0x02)
{
*mode = RIG_MODE_AMN;
}
else
{
*mode = RIG_MODE_AM;
} break;
case S_AMS: *mode = RIG_MODE_AMS; break;
case S_CW: *mode = RIG_MODE_CW; break;
case S_CWR: *mode = RIG_MODE_CWR; break;
case S_FM: if (rig->caps->rig_model == RIG_MODEL_ICR7000
&& pd == 0x00)
{
*mode = RIG_MODE_USB;
*width = rig_passband_normal(rig, RIG_MODE_USB);
return;
}
else if (rig->caps->rig_model == RIG_MODEL_ICR30 && pd == 0x02)
{
*mode = RIG_MODE_FMN;
}
else
{
*mode = RIG_MODE_FM;
} break;
case S_WFM: *mode = RIG_MODE_WFM; break;
case S_USB: *mode = RIG_MODE_USB; break;
case S_LSB: *mode = RIG_MODE_LSB; break;
case S_RTTY: *mode = RIG_MODE_RTTY; break;
case S_RTTYR: *mode = RIG_MODE_RTTYR; break;
case S_PSK: *mode = RIG_MODE_PSK; break;
case S_PSKR: *mode = RIG_MODE_PSKR; break;
case S_DSTAR: *mode = RIG_MODE_DSTAR; break;
case S_P25: *mode = RIG_MODE_P25; break;
case S_DPMR: *mode = RIG_MODE_DPMR; break;
case S_NXDNVN: *mode = RIG_MODE_NXDNVN; break;
case S_NXDN_N: *mode = RIG_MODE_NXDN_N; break;
case S_DCR: *mode = RIG_MODE_DCR; break;
case 0xff: *mode = RIG_MODE_NONE; break; /* blank mem channel */
default:
rig_debug(RIG_DEBUG_ERR, "icom: Unsupported Icom mode %#.2x\n",
md);
*mode = RIG_MODE_NONE;
}
/* Most rigs return 1-wide, 2-narrow; or if it has 3 filters: 1-wide, 2-middle,
3-narrow. (Except for the 706 mkIIg 0-wide, 1-middle, 2-narrow.) For DSP
rigs these are presets, which can be programmed for 30 - 41 bandwidths,
depending on mode */
if (pd >= 0 && (rig->caps->rig_model == RIG_MODEL_IC706MKIIG ||
rig->caps->rig_model == RIG_MODEL_IC706 ||
rig->caps->rig_model == RIG_MODEL_IC706MKII)) { pd++; }
switch (pd)
{
case 0x01:
/* if no wide filter defined it's the default */
if (!(*width = rig_passband_wide(rig, *mode)))
{
*width = rig_passband_normal(rig, *mode);
}
break;
case 0x02:
if ((*width = rig_passband_wide(rig, *mode)))
{
*width = rig_passband_normal(rig, *mode);
}
else
/* This really just depends on how you program the table. */
{
*width = rig_passband_narrow(rig, *mode);
}
break;
case 0x03:
*width = rig_passband_narrow(rig, *mode);
break;
case -1:
break; /* no passband data */
default:
rig_debug(RIG_DEBUG_ERR, "icom: Unsupported Icom mode width %#.2x\n", pd);
}
return ;
}
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