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-rw-r--r--drivers/net/hamradio/soundmodem/sm.h382
1 files changed, 382 insertions, 0 deletions
diff --git a/drivers/net/hamradio/soundmodem/sm.h b/drivers/net/hamradio/soundmodem/sm.h
new file mode 100644
index 000000000..25bbc8ba9
--- /dev/null
+++ b/drivers/net/hamradio/soundmodem/sm.h
@@ -0,0 +1,382 @@
+/*****************************************************************************/
+
+/*
+ * sm.h -- soundcard radio modem driver internal header.
+ *
+ * Copyright (C) 1996 Thomas Sailer (sailer@ife.ee.ethz.ch)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Please note that the GPL allows you to use the driver, NOT the radio.
+ * In order to use the radio, you need a license from the communications
+ * authority of your country.
+ *
+ */
+
+#ifndef _SM_H
+#define _SM_H
+
+/* ---------------------------------------------------------------------- */
+
+#include <linux/hdlcdrv.h>
+#include <linux/soundmodem.h>
+
+#define SM_DEBUG
+
+/* ---------------------------------------------------------------------- */
+/*
+ * Information that need to be kept for each board.
+ */
+
+struct sm_state {
+ struct hdlcdrv_state hdrv;
+
+ const struct modem_tx_info *mode_tx;
+ const struct modem_rx_info *mode_rx;
+
+ const struct hardware_info *hwdrv;
+
+ /*
+ * Hardware (soundcard) access routines state
+ */
+ struct {
+ void *ibuf;
+ unsigned int ifragsz;
+ unsigned int ifragptr;
+ unsigned int i16bit;
+ void *obuf;
+ unsigned int ofragsz;
+ unsigned int ofragptr;
+ unsigned int o16bit;
+ int ptt_cnt;
+ } dma;
+
+ union {
+ long hw[32/sizeof(long)];
+ } hw;
+
+ /*
+ * state of the modem code
+ */
+ union {
+ long m[32/sizeof(long)];
+ } m;
+ union {
+ long d[256/sizeof(long)];
+ } d;
+
+#define DIAGDATALEN 64
+ struct diag_data {
+ unsigned int mode;
+ unsigned int flags;
+ volatile int ptr;
+ short data[DIAGDATALEN];
+ } diag;
+
+
+#ifdef SM_DEBUG
+ struct debug_vals {
+ unsigned long last_jiffies;
+ unsigned cur_intcnt;
+ unsigned last_intcnt;
+ unsigned mod_cyc;
+ unsigned demod_cyc;
+ unsigned dma_residue;
+ } debug_vals;
+#endif /* SM_DEBUG */
+};
+
+/* ---------------------------------------------------------------------- */
+/*
+ * Mode definition structure
+ */
+
+struct modem_tx_info {
+ const char *name;
+ unsigned int loc_storage;
+ int srate;
+ int bitrate;
+ void (*modulator_u8)(struct sm_state *, unsigned char *, unsigned int);
+ void (*modulator_s16)(struct sm_state *, short *, unsigned int);
+ void (*init)(struct sm_state *);
+};
+
+struct modem_rx_info {
+ const char *name;
+ unsigned int loc_storage;
+ int srate;
+ int bitrate;
+ unsigned int overlap;
+ unsigned int sperbit;
+ void (*demodulator_u8)(struct sm_state *, const unsigned char *, unsigned int);
+ void (*demodulator_s16)(struct sm_state *, const short *, unsigned int);
+ void (*init)(struct sm_state *);
+};
+
+/* ---------------------------------------------------------------------- */
+/*
+ * Soundcard driver definition structure
+ */
+
+struct hardware_info {
+ char *hw_name; /* used for request_{region,irq,dma} */
+ unsigned int loc_storage;
+ /*
+ * mode specific open/close
+ */
+ int (*open)(struct device *, struct sm_state *);
+ int (*close)(struct device *, struct sm_state *);
+ int (*ioctl)(struct device *, struct sm_state *, struct ifreq *,
+ struct hdlcdrv_ioctl *, int);
+ int (*sethw)(struct device *, struct sm_state *, char *);
+};
+
+/* --------------------------------------------------------------------- */
+
+#define min(a, b) (((a) < (b)) ? (a) : (b))
+#define max(a, b) (((a) > (b)) ? (a) : (b))
+
+/* --------------------------------------------------------------------- */
+
+extern const char sm_drvname[];
+extern const char sm_drvinfo[];
+
+/* --------------------------------------------------------------------- */
+/*
+ * ===================== diagnostics stuff ===============================
+ */
+
+extern inline void diag_trigger(struct sm_state *sm)
+{
+ if (sm->diag.ptr < 0)
+ if (!(sm->diag.flags & SM_DIAGFLAG_DCDGATE) || sm->hdrv.hdlcrx.dcd)
+ sm->diag.ptr = 0;
+}
+
+/* --------------------------------------------------------------------- */
+
+#define SHRT_MAX ((short)(((unsigned short)(~0U))>>1))
+#define SHRT_MIN (-SHRT_MAX-1)
+
+extern inline void diag_add(struct sm_state *sm, int valinp, int valdemod)
+{
+ int val;
+
+ if ((sm->diag.mode != SM_DIAGMODE_INPUT &&
+ sm->diag.mode != SM_DIAGMODE_DEMOD) ||
+ sm->diag.ptr >= DIAGDATALEN || sm->diag.ptr < 0)
+ return;
+ val = (sm->diag.mode == SM_DIAGMODE_DEMOD) ? valdemod : valinp;
+ /* clip */
+ if (val > SHRT_MAX)
+ val = SHRT_MAX;
+ if (val < SHRT_MIN)
+ val = SHRT_MIN;
+ sm->diag.data[sm->diag.ptr++] = val;
+}
+
+/* --------------------------------------------------------------------- */
+
+extern inline void diag_add_one(struct sm_state *sm, int val)
+{
+ if ((sm->diag.mode != SM_DIAGMODE_INPUT &&
+ sm->diag.mode != SM_DIAGMODE_DEMOD) ||
+ sm->diag.ptr >= DIAGDATALEN || sm->diag.ptr < 0)
+ return;
+ /* clip */
+ if (val > SHRT_MAX)
+ val = SHRT_MAX;
+ if (val < SHRT_MIN)
+ val = SHRT_MIN;
+ sm->diag.data[sm->diag.ptr++] = val;
+}
+
+/* --------------------------------------------------------------------- */
+
+static inline void diag_add_constellation(struct sm_state *sm, int vali, int valq)
+{
+ if ((sm->diag.mode != SM_DIAGMODE_CONSTELLATION) ||
+ sm->diag.ptr >= DIAGDATALEN-1 || sm->diag.ptr < 0)
+ return;
+ /* clip */
+ if (vali > SHRT_MAX)
+ vali = SHRT_MAX;
+ if (vali < SHRT_MIN)
+ vali = SHRT_MIN;
+ if (valq > SHRT_MAX)
+ valq = SHRT_MAX;
+ if (valq < SHRT_MIN)
+ valq = SHRT_MIN;
+ sm->diag.data[sm->diag.ptr++] = vali;
+ sm->diag.data[sm->diag.ptr++] = valq;
+}
+
+/* --------------------------------------------------------------------- */
+/*
+ * ===================== utility functions ===============================
+ */
+
+extern inline unsigned int hweight32(unsigned int w)
+ __attribute__ ((unused));
+extern inline unsigned int hweight16(unsigned short w)
+ __attribute__ ((unused));
+extern inline unsigned int hweight8(unsigned char w)
+ __attribute__ ((unused));
+
+extern inline unsigned int hweight32(unsigned int w)
+{
+ unsigned int res = (w & 0x55555555) + ((w >> 1) & 0x55555555);
+ res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
+ res = (res & 0x0F0F0F0F) + ((res >> 4) & 0x0F0F0F0F);
+ res = (res & 0x00FF00FF) + ((res >> 8) & 0x00FF00FF);
+ return (res & 0x0000FFFF) + ((res >> 16) & 0x0000FFFF);
+}
+
+extern inline unsigned int hweight16(unsigned short w)
+{
+ unsigned short res = (w & 0x5555) + ((w >> 1) & 0x5555);
+ res = (res & 0x3333) + ((res >> 2) & 0x3333);
+ res = (res & 0x0F0F) + ((res >> 4) & 0x0F0F);
+ return (res & 0x00FF) + ((res >> 8) & 0x00FF);
+}
+
+extern inline unsigned int hweight8(unsigned char w)
+{
+ unsigned short res = (w & 0x55) + ((w >> 1) & 0x55);
+ res = (res & 0x33) + ((res >> 2) & 0x33);
+ return (res & 0x0F) + ((res >> 4) & 0x0F);
+}
+
+extern inline unsigned int gcd(unsigned int x, unsigned int y)
+ __attribute__ ((unused));
+extern inline unsigned int lcm(unsigned int x, unsigned int y)
+ __attribute__ ((unused));
+
+extern inline unsigned int gcd(unsigned int x, unsigned int y)
+{
+ for (;;) {
+ if (!x)
+ return y;
+ if (!y)
+ return x;
+ if (x > y)
+ x %= y;
+ else
+ y %= x;
+ }
+}
+
+extern inline unsigned int lcm(unsigned int x, unsigned int y)
+{
+ return x * y / gcd(x, y);
+}
+
+/* --------------------------------------------------------------------- */
+/*
+ * ===================== profiling =======================================
+ */
+
+
+#ifdef __i386__
+
+extern int sm_x86_capability;
+
+#define HAS_RDTSC (sm_x86_capability & 0x10)
+
+/*
+ * only do 32bit cycle counter arithmetic; we hope we won't overflow :-)
+ * in fact, overflowing modems would require over 2THz clock speeds :-)
+ */
+
+#define time_exec(var,cmd) \
+({ \
+ if (HAS_RDTSC) { \
+ unsigned int cnt1, cnt2, cnt3; \
+ __asm__(".byte 0x0f,0x31" : "=a" (cnt1), "=d" (cnt3)); \
+ cmd; \
+ __asm__(".byte 0x0f,0x31" : "=a" (cnt2), "=d" (cnt3)); \
+ var = cnt2-cnt1; \
+ } else { \
+ cmd; \
+ } \
+})
+
+#else /* __i386__ */
+
+#define time_exec(var,cmd) cmd
+
+#endif /* __i386__ */
+
+/* --------------------------------------------------------------------- */
+
+extern const struct modem_tx_info sm_afsk1200_tx;
+extern const struct modem_tx_info sm_afsk2400_7_tx;
+extern const struct modem_tx_info sm_afsk2400_8_tx;
+extern const struct modem_tx_info sm_afsk2666_tx;
+extern const struct modem_tx_info sm_psk4800_tx;
+extern const struct modem_tx_info sm_hapn4800_8_tx;
+extern const struct modem_tx_info sm_hapn4800_10_tx;
+extern const struct modem_tx_info sm_hapn4800_pm8_tx;
+extern const struct modem_tx_info sm_hapn4800_pm10_tx;
+extern const struct modem_tx_info sm_fsk9600_4_tx;
+extern const struct modem_tx_info sm_fsk9600_5_tx;
+
+extern const struct modem_rx_info sm_afsk1200_rx;
+extern const struct modem_rx_info sm_afsk2400_7_rx;
+extern const struct modem_rx_info sm_afsk2400_8_rx;
+extern const struct modem_rx_info sm_afsk2666_rx;
+extern const struct modem_rx_info sm_psk4800_rx;
+extern const struct modem_rx_info sm_hapn4800_8_rx;
+extern const struct modem_rx_info sm_hapn4800_10_rx;
+extern const struct modem_rx_info sm_hapn4800_pm8_rx;
+extern const struct modem_rx_info sm_hapn4800_pm10_rx;
+extern const struct modem_rx_info sm_fsk9600_4_rx;
+extern const struct modem_rx_info sm_fsk9600_5_rx;
+
+extern const struct hardware_info sm_hw_sbc;
+extern const struct hardware_info sm_hw_sbcfdx;
+extern const struct hardware_info sm_hw_wss;
+extern const struct hardware_info sm_hw_wssfdx;
+
+extern const struct modem_tx_info *sm_modem_tx_table[];
+extern const struct modem_rx_info *sm_modem_rx_table[];
+extern const struct hardware_info *sm_hardware_table[];
+
+/* --------------------------------------------------------------------- */
+
+void sm_output_status(struct sm_state *sm);
+/*void sm_output_open(struct sm_state *sm);*/
+/*void sm_output_close(struct sm_state *sm);*/
+
+/* --------------------------------------------------------------------- */
+
+extern void inline sm_int_freq(struct sm_state *sm)
+{
+#ifdef SM_DEBUG
+ unsigned long cur_jiffies = jiffies;
+ /*
+ * measure the interrupt frequency
+ */
+ sm->debug_vals.cur_intcnt++;
+ if ((cur_jiffies - sm->debug_vals.last_jiffies) >= HZ) {
+ sm->debug_vals.last_jiffies = cur_jiffies;
+ sm->debug_vals.last_intcnt = sm->debug_vals.cur_intcnt;
+ sm->debug_vals.cur_intcnt = 0;
+ }
+#endif /* SM_DEBUG */
+}
+
+/* --------------------------------------------------------------------- */
+#endif /* _SM_H */
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