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jcastillo |
/*****************************************************************************/
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/*
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* sm.h -- soundcard radio modem driver internal header.
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*
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* Copyright (C) 1996-1998 Thomas Sailer (sailer@ife.ee.ethz.ch)
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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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Please note that the GPL allows you to use the driver, NOT the radio.
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* In order to use the radio, you need a license from the communications
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* authority of your country.
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*
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*/
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#ifndef _SM_H
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#define _SM_H
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/* ---------------------------------------------------------------------- */
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#include <linux/hdlcdrv.h>
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#include <linux/soundmodem.h>
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#define SM_DEBUG
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/* ---------------------------------------------------------------------- */
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/*
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* Information that need to be kept for each board.
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*/
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struct sm_state {
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struct hdlcdrv_state hdrv;
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const struct modem_tx_info *mode_tx;
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const struct modem_rx_info *mode_rx;
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const struct hardware_info *hwdrv;
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/*
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* Hardware (soundcard) access routines state
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*/
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struct {
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void *ibuf;
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unsigned int ifragsz;
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unsigned int ifragptr;
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unsigned int i16bit;
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void *obuf;
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unsigned int ofragsz;
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unsigned int ofragptr;
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unsigned int o16bit;
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int ptt_cnt;
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} dma;
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union {
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long hw[32/sizeof(long)];
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} hw;
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/*
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* state of the modem code
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*/
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union {
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long m[48/sizeof(long)];
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} m;
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union {
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long d[256/sizeof(long)];
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} d;
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#define DIAGDATALEN 64
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struct diag_data {
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unsigned int mode;
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unsigned int flags;
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volatile int ptr;
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short data[DIAGDATALEN];
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} diag;
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#ifdef SM_DEBUG
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struct debug_vals {
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unsigned long last_jiffies;
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unsigned cur_intcnt;
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unsigned last_intcnt;
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unsigned mod_cyc;
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unsigned demod_cyc;
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unsigned dma_residue;
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} debug_vals;
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#endif /* SM_DEBUG */
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};
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/* ---------------------------------------------------------------------- */
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/*
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* Mode definition structure
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*/
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struct modem_tx_info {
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const char *name;
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unsigned int loc_storage;
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int srate;
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int bitrate;
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void (*modulator_u8)(struct sm_state *, unsigned char *, unsigned int);
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void (*modulator_s16)(struct sm_state *, short *, unsigned int);
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void (*init)(struct sm_state *);
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};
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struct modem_rx_info {
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const char *name;
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unsigned int loc_storage;
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int srate;
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int bitrate;
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unsigned int overlap;
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unsigned int sperbit;
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void (*demodulator_u8)(struct sm_state *, const unsigned char *, unsigned int);
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void (*demodulator_s16)(struct sm_state *, const short *, unsigned int);
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void (*init)(struct sm_state *);
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};
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/* ---------------------------------------------------------------------- */
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/*
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* Soundcard driver definition structure
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*/
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struct hardware_info {
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char *hw_name; /* used for request_{region,irq,dma} */
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unsigned int loc_storage;
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/*
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* mode specific open/close
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*/
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int (*open)(struct device *, struct sm_state *);
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int (*close)(struct device *, struct sm_state *);
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int (*ioctl)(struct device *, struct sm_state *, struct ifreq *,
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struct hdlcdrv_ioctl *, int);
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int (*sethw)(struct device *, struct sm_state *, char *);
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};
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/* --------------------------------------------------------------------- */
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#define min(a, b) (((a) < (b)) ? (a) : (b))
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#define max(a, b) (((a) > (b)) ? (a) : (b))
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/* --------------------------------------------------------------------- */
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extern const char sm_drvname[];
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extern const char sm_drvinfo[];
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/* --------------------------------------------------------------------- */
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/*
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* ===================== diagnostics stuff ===============================
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*/
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extern inline void diag_trigger(struct sm_state *sm)
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{
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if (sm->diag.ptr < 0)
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if (!(sm->diag.flags & SM_DIAGFLAG_DCDGATE) || sm->hdrv.hdlcrx.dcd)
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sm->diag.ptr = 0;
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}
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/* --------------------------------------------------------------------- */
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#define SHRT_MAX ((short)(((unsigned short)(~0U))>>1))
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#define SHRT_MIN (-SHRT_MAX-1)
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extern inline void diag_add(struct sm_state *sm, int valinp, int valdemod)
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{
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int val;
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if ((sm->diag.mode != SM_DIAGMODE_INPUT &&
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sm->diag.mode != SM_DIAGMODE_DEMOD) ||
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sm->diag.ptr >= DIAGDATALEN || sm->diag.ptr < 0)
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return;
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val = (sm->diag.mode == SM_DIAGMODE_DEMOD) ? valdemod : valinp;
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/* clip */
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if (val > SHRT_MAX)
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val = SHRT_MAX;
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if (val < SHRT_MIN)
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val = SHRT_MIN;
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sm->diag.data[sm->diag.ptr++] = val;
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}
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/* --------------------------------------------------------------------- */
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extern inline void diag_add_one(struct sm_state *sm, int val)
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{
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if ((sm->diag.mode != SM_DIAGMODE_INPUT &&
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sm->diag.mode != SM_DIAGMODE_DEMOD) ||
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sm->diag.ptr >= DIAGDATALEN || sm->diag.ptr < 0)
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return;
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/* clip */
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if (val > SHRT_MAX)
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val = SHRT_MAX;
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if (val < SHRT_MIN)
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val = SHRT_MIN;
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sm->diag.data[sm->diag.ptr++] = val;
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}
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/* --------------------------------------------------------------------- */
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static inline void diag_add_constellation(struct sm_state *sm, int vali, int valq)
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{
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if ((sm->diag.mode != SM_DIAGMODE_CONSTELLATION) ||
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sm->diag.ptr >= DIAGDATALEN-1 || sm->diag.ptr < 0)
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return;
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/* clip */
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if (vali > SHRT_MAX)
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vali = SHRT_MAX;
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if (vali < SHRT_MIN)
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vali = SHRT_MIN;
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if (valq > SHRT_MAX)
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valq = SHRT_MAX;
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if (valq < SHRT_MIN)
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valq = SHRT_MIN;
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sm->diag.data[sm->diag.ptr++] = vali;
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sm->diag.data[sm->diag.ptr++] = valq;
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}
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/* --------------------------------------------------------------------- */
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/*
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* ===================== utility functions ===============================
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*/
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extern inline unsigned int hweight32(unsigned int w)
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__attribute__ ((unused));
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extern inline unsigned int hweight16(unsigned short w)
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__attribute__ ((unused));
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extern inline unsigned int hweight8(unsigned char w)
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__attribute__ ((unused));
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extern inline unsigned int hweight32(unsigned int w)
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{
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unsigned int res = (w & 0x55555555) + ((w >> 1) & 0x55555555);
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res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
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res = (res & 0x0F0F0F0F) + ((res >> 4) & 0x0F0F0F0F);
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res = (res & 0x00FF00FF) + ((res >> 8) & 0x00FF00FF);
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return (res & 0x0000FFFF) + ((res >> 16) & 0x0000FFFF);
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}
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extern inline unsigned int hweight16(unsigned short w)
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{
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unsigned short res = (w & 0x5555) + ((w >> 1) & 0x5555);
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res = (res & 0x3333) + ((res >> 2) & 0x3333);
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res = (res & 0x0F0F) + ((res >> 4) & 0x0F0F);
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return (res & 0x00FF) + ((res >> 8) & 0x00FF);
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}
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extern inline unsigned int hweight8(unsigned char w)
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{
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unsigned short res = (w & 0x55) + ((w >> 1) & 0x55);
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res = (res & 0x33) + ((res >> 2) & 0x33);
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return (res & 0x0F) + ((res >> 4) & 0x0F);
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}
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extern inline unsigned int gcd(unsigned int x, unsigned int y)
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__attribute__ ((unused));
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extern inline unsigned int lcm(unsigned int x, unsigned int y)
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__attribute__ ((unused));
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extern inline unsigned int gcd(unsigned int x, unsigned int y)
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{
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for (;;) {
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if (!x)
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return y;
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if (!y)
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return x;
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if (x > y)
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x %= y;
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else
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y %= x;
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}
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}
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extern inline unsigned int lcm(unsigned int x, unsigned int y)
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{
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return x * y / gcd(x, y);
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}
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/* --------------------------------------------------------------------- */
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/*
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* ===================== profiling =======================================
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*/
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#ifdef __i386__
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extern int sm_x86_capability;
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#define HAS_RDTSC (sm_x86_capability & 0x10)
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/*
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* only do 32bit cycle counter arithmetic; we hope we won't overflow.
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* in fact, overflowing modems would require over 2THz CPU clock speeds :-)
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*/
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#define time_exec(var,cmd) \
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({ \
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if (HAS_RDTSC) { \
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unsigned int cnt1, cnt2, cnt3; \
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__asm__(".byte 0x0f,0x31" : "=a" (cnt1), "=d" (cnt3)); \
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cmd; \
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__asm__(".byte 0x0f,0x31" : "=a" (cnt2), "=d" (cnt3)); \
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var = cnt2-cnt1; \
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} else { \
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cmd; \
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} \
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})
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#else /* __i386__ */
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#define time_exec(var,cmd) cmd
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#endif /* __i386__ */
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/* --------------------------------------------------------------------- */
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extern const struct modem_tx_info sm_afsk1200_tx;
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extern const struct modem_tx_info sm_afsk2400_7_tx;
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extern const struct modem_tx_info sm_afsk2400_8_tx;
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extern const struct modem_tx_info sm_afsk2666_tx;
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extern const struct modem_tx_info sm_psk4800_tx;
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extern const struct modem_tx_info sm_hapn4800_8_tx;
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extern const struct modem_tx_info sm_hapn4800_10_tx;
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extern const struct modem_tx_info sm_hapn4800_pm8_tx;
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extern const struct modem_tx_info sm_hapn4800_pm10_tx;
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extern const struct modem_tx_info sm_fsk9600_4_tx;
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extern const struct modem_tx_info sm_fsk9600_5_tx;
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extern const struct modem_rx_info sm_afsk1200_rx;
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extern const struct modem_rx_info sm_afsk2400_7_rx;
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extern const struct modem_rx_info sm_afsk2400_8_rx;
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extern const struct modem_rx_info sm_afsk2666_rx;
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extern const struct modem_rx_info sm_psk4800_rx;
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extern const struct modem_rx_info sm_hapn4800_8_rx;
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extern const struct modem_rx_info sm_hapn4800_10_rx;
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extern const struct modem_rx_info sm_hapn4800_pm8_rx;
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344 |
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extern const struct modem_rx_info sm_hapn4800_pm10_rx;
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extern const struct modem_rx_info sm_fsk9600_4_rx;
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346 |
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extern const struct modem_rx_info sm_fsk9600_5_rx;
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347 |
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348 |
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extern const struct hardware_info sm_hw_sbc;
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349 |
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extern const struct hardware_info sm_hw_sbcfdx;
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extern const struct hardware_info sm_hw_wss;
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351 |
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extern const struct hardware_info sm_hw_wssfdx;
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352 |
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extern const struct modem_tx_info *sm_modem_tx_table[];
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354 |
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extern const struct modem_rx_info *sm_modem_rx_table[];
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extern const struct hardware_info *sm_hardware_table[];
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356 |
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357 |
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/* --------------------------------------------------------------------- */
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358 |
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359 |
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void sm_output_status(struct sm_state *sm);
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360 |
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/*void sm_output_open(struct sm_state *sm);*/
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361 |
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/*void sm_output_close(struct sm_state *sm);*/
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362 |
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363 |
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/* --------------------------------------------------------------------- */
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364 |
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|
365 |
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extern void inline sm_int_freq(struct sm_state *sm)
|
366 |
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{
|
367 |
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#ifdef SM_DEBUG
|
368 |
|
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unsigned long cur_jiffies = jiffies;
|
369 |
|
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/*
|
370 |
|
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* measure the interrupt frequency
|
371 |
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*/
|
372 |
|
|
sm->debug_vals.cur_intcnt++;
|
373 |
|
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if ((cur_jiffies - sm->debug_vals.last_jiffies) >= HZ) {
|
374 |
|
|
sm->debug_vals.last_jiffies = cur_jiffies;
|
375 |
|
|
sm->debug_vals.last_intcnt = sm->debug_vals.cur_intcnt;
|
376 |
|
|
sm->debug_vals.cur_intcnt = 0;
|
377 |
|
|
}
|
378 |
|
|
#endif /* SM_DEBUG */
|
379 |
|
|
}
|
380 |
|
|
|
381 |
|
|
/* --------------------------------------------------------------------- */
|
382 |
|
|
#endif /* _SM_H */
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