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Diffstat (limited to 'ANDROID_3.4.5/drivers/isdn/mISDN/dsp_tones.c')
-rw-r--r--ANDROID_3.4.5/drivers/isdn/mISDN/dsp_tones.c552
1 files changed, 0 insertions, 552 deletions
diff --git a/ANDROID_3.4.5/drivers/isdn/mISDN/dsp_tones.c b/ANDROID_3.4.5/drivers/isdn/mISDN/dsp_tones.c
deleted file mode 100644
index 057e0d6a..00000000
--- a/ANDROID_3.4.5/drivers/isdn/mISDN/dsp_tones.c
+++ /dev/null
@@ -1,552 +0,0 @@
-/*
- * Audio support data for ISDN4Linux.
- *
- * Copyright Andreas Eversberg (jolly@eversberg.eu)
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- *
- */
-
-#include <linux/gfp.h>
-#include <linux/mISDNif.h>
-#include <linux/mISDNdsp.h>
-#include "core.h"
-#include "dsp.h"
-
-
-#define DATA_S sample_silence
-#define SIZE_S (&sizeof_silence)
-#define DATA_GA sample_german_all
-#define SIZE_GA (&sizeof_german_all)
-#define DATA_GO sample_german_old
-#define SIZE_GO (&sizeof_german_old)
-#define DATA_DT sample_american_dialtone
-#define SIZE_DT (&sizeof_american_dialtone)
-#define DATA_RI sample_american_ringing
-#define SIZE_RI (&sizeof_american_ringing)
-#define DATA_BU sample_american_busy
-#define SIZE_BU (&sizeof_american_busy)
-#define DATA_S1 sample_special1
-#define SIZE_S1 (&sizeof_special1)
-#define DATA_S2 sample_special2
-#define SIZE_S2 (&sizeof_special2)
-#define DATA_S3 sample_special3
-#define SIZE_S3 (&sizeof_special3)
-
-/***************/
-/* tones loops */
-/***************/
-
-/* all tones are alaw encoded */
-/* the last sample+1 is in phase with the first sample. the error is low */
-
-static u8 sample_german_all[] = {
- 0x80, 0xab, 0x81, 0x6d, 0xfd, 0xdd, 0x5d, 0x9d,
- 0x4d, 0xd1, 0x89, 0x88, 0xd0, 0x4c, 0x9c, 0x5c,
- 0xdc, 0xfc, 0x6c,
- 0x80, 0xab, 0x81, 0x6d, 0xfd, 0xdd, 0x5d, 0x9d,
- 0x4d, 0xd1, 0x89, 0x88, 0xd0, 0x4c, 0x9c, 0x5c,
- 0xdc, 0xfc, 0x6c,
- 0x80, 0xab, 0x81, 0x6d, 0xfd, 0xdd, 0x5d, 0x9d,
- 0x4d, 0xd1, 0x89, 0x88, 0xd0, 0x4c, 0x9c, 0x5c,
- 0xdc, 0xfc, 0x6c,
- 0x80, 0xab, 0x81, 0x6d, 0xfd, 0xdd, 0x5d, 0x9d,
- 0x4d, 0xd1, 0x89, 0x88, 0xd0, 0x4c, 0x9c, 0x5c,
- 0xdc, 0xfc, 0x6c,
-};
-static u32 sizeof_german_all = sizeof(sample_german_all);
-
-static u8 sample_german_old[] = {
- 0xec, 0x68, 0xe1, 0x6d, 0x6d, 0x91, 0x51, 0xed,
- 0x6d, 0x01, 0x1e, 0x10, 0x0c, 0x90, 0x60, 0x70,
- 0x8c,
- 0xec, 0x68, 0xe1, 0x6d, 0x6d, 0x91, 0x51, 0xed,
- 0x6d, 0x01, 0x1e, 0x10, 0x0c, 0x90, 0x60, 0x70,
- 0x8c,
- 0xec, 0x68, 0xe1, 0x6d, 0x6d, 0x91, 0x51, 0xed,
- 0x6d, 0x01, 0x1e, 0x10, 0x0c, 0x90, 0x60, 0x70,
- 0x8c,
- 0xec, 0x68, 0xe1, 0x6d, 0x6d, 0x91, 0x51, 0xed,
- 0x6d, 0x01, 0x1e, 0x10, 0x0c, 0x90, 0x60, 0x70,
- 0x8c,
-};
-static u32 sizeof_german_old = sizeof(sample_german_old);
-
-static u8 sample_american_dialtone[] = {
- 0x2a, 0x18, 0x90, 0x6c, 0x4c, 0xbc, 0x4c, 0x6c,
- 0x10, 0x58, 0x32, 0xb9, 0x31, 0x2d, 0x8d, 0x0d,
- 0x8d, 0x2d, 0x31, 0x99, 0x0f, 0x28, 0x60, 0xf0,
- 0xd0, 0x50, 0xd0, 0x30, 0x60, 0x08, 0x8e, 0x67,
- 0x09, 0x19, 0x21, 0xe1, 0xd9, 0xb9, 0x29, 0x67,
- 0x83, 0x02, 0xce, 0xbe, 0xee, 0x1a, 0x1b, 0xef,
- 0xbf, 0xcf, 0x03, 0x82, 0x66, 0x28, 0xb8, 0xd8,
- 0xe0, 0x20, 0x18, 0x08, 0x66, 0x8f, 0x09, 0x61,
- 0x31, 0xd1, 0x51, 0xd1, 0xf1, 0x61, 0x29, 0x0e,
- 0x98, 0x30, 0x2c, 0x8c, 0x0c, 0x8c, 0x2c, 0x30,
- 0xb8, 0x33, 0x59, 0x11, 0x6d, 0x4d, 0xbd, 0x4d,
- 0x6d, 0x91, 0x19,
-};
-static u32 sizeof_american_dialtone = sizeof(sample_american_dialtone);
-
-static u8 sample_american_ringing[] = {
- 0x2a, 0xe0, 0xac, 0x0c, 0xbc, 0x4c, 0x8c, 0x90,
- 0x48, 0xc7, 0xc1, 0xed, 0xcd, 0x4d, 0xcd, 0xed,
- 0xc1, 0xb7, 0x08, 0x30, 0xec, 0xcc, 0xcc, 0x8c,
- 0x10, 0x58, 0x1a, 0x99, 0x71, 0xed, 0x8d, 0x8d,
- 0x2d, 0x41, 0x89, 0x9e, 0x20, 0x70, 0x2c, 0xec,
- 0x2c, 0x70, 0x20, 0x86, 0x77, 0xe1, 0x31, 0x11,
- 0xd1, 0xf1, 0x81, 0x09, 0xa3, 0x56, 0x58, 0x00,
- 0x40, 0xc0, 0x60, 0x38, 0x46, 0x43, 0x57, 0x39,
- 0xd9, 0x59, 0x99, 0xc9, 0x77, 0x2f, 0x2e, 0xc6,
- 0xd6, 0x28, 0xd6, 0x36, 0x26, 0x2e, 0x8a, 0xa3,
- 0x43, 0x63, 0x4b, 0x4a, 0x62, 0x42, 0xa2, 0x8b,
- 0x2f, 0x27, 0x37, 0xd7, 0x29, 0xd7, 0xc7, 0x2f,
- 0x2e, 0x76, 0xc8, 0x98, 0x58, 0xd8, 0x38, 0x56,
- 0x42, 0x47, 0x39, 0x61, 0xc1, 0x41, 0x01, 0x59,
- 0x57, 0xa2, 0x08, 0x80, 0xf0, 0xd0, 0x10, 0x30,
- 0xe0, 0x76, 0x87, 0x21, 0x71, 0x2d, 0xed, 0x2d,
- 0x71, 0x21, 0x9f, 0x88, 0x40, 0x2c, 0x8c, 0x8c,
- 0xec, 0x70, 0x98, 0x1b, 0x59, 0x11, 0x8d, 0xcd,
- 0xcd, 0xed, 0x31, 0x09, 0xb6, 0xc0, 0xec, 0xcc,
- 0x4c, 0xcc, 0xec, 0xc0, 0xc6, 0x49, 0x91, 0x8d,
- 0x4d, 0xbd, 0x0d, 0xad, 0xe1,
-};
-static u32 sizeof_american_ringing = sizeof(sample_american_ringing);
-
-static u8 sample_american_busy[] = {
- 0x2a, 0x00, 0x6c, 0x4c, 0x4c, 0x6c, 0xb0, 0x66,
- 0x99, 0x11, 0x6d, 0x8d, 0x2d, 0x41, 0xd7, 0x96,
- 0x60, 0xf0, 0x70, 0x40, 0x58, 0xf6, 0x53, 0x57,
- 0x09, 0x89, 0xd7, 0x5f, 0xe3, 0x2a, 0xe3, 0x5f,
- 0xd7, 0x89, 0x09, 0x57, 0x53, 0xf6, 0x58, 0x40,
- 0x70, 0xf0, 0x60, 0x96, 0xd7, 0x41, 0x2d, 0x8d,
- 0x6d, 0x11, 0x99, 0x66, 0xb0, 0x6c, 0x4c, 0x4c,
- 0x6c, 0x00, 0x2a, 0x01, 0x6d, 0x4d, 0x4d, 0x6d,
- 0xb1, 0x67, 0x98, 0x10, 0x6c, 0x8c, 0x2c, 0x40,
- 0xd6, 0x97, 0x61, 0xf1, 0x71, 0x41, 0x59, 0xf7,
- 0x52, 0x56, 0x08, 0x88, 0xd6, 0x5e, 0xe2, 0x2a,
- 0xe2, 0x5e, 0xd6, 0x88, 0x08, 0x56, 0x52, 0xf7,
- 0x59, 0x41, 0x71, 0xf1, 0x61, 0x97, 0xd6, 0x40,
- 0x2c, 0x8c, 0x6c, 0x10, 0x98, 0x67, 0xb1, 0x6d,
- 0x4d, 0x4d, 0x6d, 0x01,
-};
-static u32 sizeof_american_busy = sizeof(sample_american_busy);
-
-static u8 sample_special1[] = {
- 0x2a, 0x2c, 0xbc, 0x6c, 0xd6, 0x71, 0xbd, 0x0d,
- 0xd9, 0x80, 0xcc, 0x4c, 0x40, 0x39, 0x0d, 0xbd,
- 0x11, 0x86, 0xec, 0xbc, 0xec, 0x0e, 0x51, 0xbd,
- 0x8d, 0x89, 0x30, 0x4c, 0xcc, 0xe0, 0xe1, 0xcd,
- 0x4d, 0x31, 0x88, 0x8c, 0xbc, 0x50, 0x0f, 0xed,
- 0xbd, 0xed, 0x87, 0x10, 0xbc, 0x0c, 0x38, 0x41,
- 0x4d, 0xcd, 0x81, 0xd8, 0x0c, 0xbc, 0x70, 0xd7,
- 0x6d, 0xbd, 0x2d,
-};
-static u32 sizeof_special1 = sizeof(sample_special1);
-
-static u8 sample_special2[] = {
- 0x2a, 0xcc, 0x8c, 0xd7, 0x4d, 0x2d, 0x18, 0xbc,
- 0x10, 0xc1, 0xbd, 0xc1, 0x10, 0xbc, 0x18, 0x2d,
- 0x4d, 0xd7, 0x8c, 0xcc, 0x2a, 0xcd, 0x8d, 0xd6,
- 0x4c, 0x2c, 0x19, 0xbd, 0x11, 0xc0, 0xbc, 0xc0,
- 0x11, 0xbd, 0x19, 0x2c, 0x4c, 0xd6, 0x8d, 0xcd,
- 0x2a, 0xcc, 0x8c, 0xd7, 0x4d, 0x2d, 0x18, 0xbc,
- 0x10, 0xc1, 0xbd, 0xc1, 0x10, 0xbc, 0x18, 0x2d,
- 0x4d, 0xd7, 0x8c, 0xcc, 0x2a, 0xcd, 0x8d, 0xd6,
- 0x4c, 0x2c, 0x19, 0xbd, 0x11, 0xc0, 0xbc, 0xc0,
- 0x11, 0xbd, 0x19, 0x2c, 0x4c, 0xd6, 0x8d, 0xcd,
-};
-static u32 sizeof_special2 = sizeof(sample_special2);
-
-static u8 sample_special3[] = {
- 0x2a, 0xbc, 0x18, 0xcd, 0x11, 0x2c, 0x8c, 0xc1,
- 0x4d, 0xd6, 0xbc, 0xd6, 0x4d, 0xc1, 0x8c, 0x2c,
- 0x11, 0xcd, 0x18, 0xbc, 0x2a, 0xbd, 0x19, 0xcc,
- 0x10, 0x2d, 0x8d, 0xc0, 0x4c, 0xd7, 0xbd, 0xd7,
- 0x4c, 0xc0, 0x8d, 0x2d, 0x10, 0xcc, 0x19, 0xbd,
- 0x2a, 0xbc, 0x18, 0xcd, 0x11, 0x2c, 0x8c, 0xc1,
- 0x4d, 0xd6, 0xbc, 0xd6, 0x4d, 0xc1, 0x8c, 0x2c,
- 0x11, 0xcd, 0x18, 0xbc, 0x2a, 0xbd, 0x19, 0xcc,
- 0x10, 0x2d, 0x8d, 0xc0, 0x4c, 0xd7, 0xbd, 0xd7,
- 0x4c, 0xc0, 0x8d, 0x2d, 0x10, 0xcc, 0x19, 0xbd,
-};
-static u32 sizeof_special3 = sizeof(sample_special3);
-
-static u8 sample_silence[] = {
- 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
- 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
- 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
- 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
- 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
- 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
- 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
- 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
- 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
- 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
- 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
- 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
-};
-static u32 sizeof_silence = sizeof(sample_silence);
-
-struct tones_samples {
- u32 *len;
- u8 *data;
-};
-static struct
-tones_samples samples[] = {
- {&sizeof_german_all, sample_german_all},
- {&sizeof_german_old, sample_german_old},
- {&sizeof_american_dialtone, sample_american_dialtone},
- {&sizeof_american_ringing, sample_american_ringing},
- {&sizeof_american_busy, sample_american_busy},
- {&sizeof_special1, sample_special1},
- {&sizeof_special2, sample_special2},
- {&sizeof_special3, sample_special3},
- {NULL, NULL},
-};
-
-/***********************************
- * generate ulaw from alaw samples *
- ***********************************/
-
-void
-dsp_audio_generate_ulaw_samples(void)
-{
- int i, j;
-
- i = 0;
- while (samples[i].len) {
- j = 0;
- while (j < (*samples[i].len)) {
- samples[i].data[j] =
- dsp_audio_alaw_to_ulaw[samples[i].data[j]];
- j++;
- }
- i++;
- }
-}
-
-
-/****************************
- * tone sequence definition *
- ****************************/
-
-static struct pattern {
- int tone;
- u8 *data[10];
- u32 *siz[10];
- u32 seq[10];
-} pattern[] = {
- {TONE_GERMAN_DIALTONE,
- {DATA_GA, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_GA, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {1900, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
-
- {TONE_GERMAN_OLDDIALTONE,
- {DATA_GO, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_GO, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {1998, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
-
- {TONE_AMERICAN_DIALTONE,
- {DATA_DT, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_DT, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {8000, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
-
- {TONE_GERMAN_DIALPBX,
- {DATA_GA, DATA_S, DATA_GA, DATA_S, DATA_GA, DATA_S, NULL, NULL, NULL,
- NULL},
- {SIZE_GA, SIZE_S, SIZE_GA, SIZE_S, SIZE_GA, SIZE_S, NULL, NULL, NULL,
- NULL},
- {2000, 2000, 2000, 2000, 2000, 12000, 0, 0, 0, 0} },
-
- {TONE_GERMAN_OLDDIALPBX,
- {DATA_GO, DATA_S, DATA_GO, DATA_S, DATA_GO, DATA_S, NULL, NULL, NULL,
- NULL},
- {SIZE_GO, SIZE_S, SIZE_GO, SIZE_S, SIZE_GO, SIZE_S, NULL, NULL, NULL,
- NULL},
- {2000, 2000, 2000, 2000, 2000, 12000, 0, 0, 0, 0} },
-
- {TONE_AMERICAN_DIALPBX,
- {DATA_DT, DATA_S, DATA_DT, DATA_S, DATA_DT, DATA_S, NULL, NULL, NULL,
- NULL},
- {SIZE_DT, SIZE_S, SIZE_DT, SIZE_S, SIZE_DT, SIZE_S, NULL, NULL, NULL,
- NULL},
- {2000, 2000, 2000, 2000, 2000, 12000, 0, 0, 0, 0} },
-
- {TONE_GERMAN_RINGING,
- {DATA_GA, DATA_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_GA, SIZE_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {8000, 32000, 0, 0, 0, 0, 0, 0, 0, 0} },
-
- {TONE_GERMAN_OLDRINGING,
- {DATA_GO, DATA_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_GO, SIZE_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {8000, 40000, 0, 0, 0, 0, 0, 0, 0, 0} },
-
- {TONE_AMERICAN_RINGING,
- {DATA_RI, DATA_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_RI, SIZE_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {8000, 32000, 0, 0, 0, 0, 0, 0, 0, 0} },
-
- {TONE_GERMAN_RINGPBX,
- {DATA_GA, DATA_S, DATA_GA, DATA_S, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_GA, SIZE_S, SIZE_GA, SIZE_S, NULL, NULL, NULL, NULL, NULL, NULL},
- {4000, 4000, 4000, 28000, 0, 0, 0, 0, 0, 0} },
-
- {TONE_GERMAN_OLDRINGPBX,
- {DATA_GO, DATA_S, DATA_GO, DATA_S, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_GO, SIZE_S, SIZE_GO, SIZE_S, NULL, NULL, NULL, NULL, NULL, NULL},
- {4000, 4000, 4000, 28000, 0, 0, 0, 0, 0, 0} },
-
- {TONE_AMERICAN_RINGPBX,
- {DATA_RI, DATA_S, DATA_RI, DATA_S, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_RI, SIZE_S, SIZE_RI, SIZE_S, NULL, NULL, NULL, NULL, NULL, NULL},
- {4000, 4000, 4000, 28000, 0, 0, 0, 0, 0, 0} },
-
- {TONE_GERMAN_BUSY,
- {DATA_GA, DATA_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_GA, SIZE_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {4000, 4000, 0, 0, 0, 0, 0, 0, 0, 0} },
-
- {TONE_GERMAN_OLDBUSY,
- {DATA_GO, DATA_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_GO, SIZE_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {1000, 5000, 0, 0, 0, 0, 0, 0, 0, 0} },
-
- {TONE_AMERICAN_BUSY,
- {DATA_BU, DATA_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_BU, SIZE_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {4000, 4000, 0, 0, 0, 0, 0, 0, 0, 0} },
-
- {TONE_GERMAN_HANGUP,
- {DATA_GA, DATA_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_GA, SIZE_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {4000, 4000, 0, 0, 0, 0, 0, 0, 0, 0} },
-
- {TONE_GERMAN_OLDHANGUP,
- {DATA_GO, DATA_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_GO, SIZE_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {1000, 5000, 0, 0, 0, 0, 0, 0, 0, 0} },
-
- {TONE_AMERICAN_HANGUP,
- {DATA_DT, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_DT, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {8000, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
-
- {TONE_SPECIAL_INFO,
- {DATA_S1, DATA_S2, DATA_S3, DATA_S, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_S1, SIZE_S2, SIZE_S3, SIZE_S, NULL, NULL, NULL, NULL, NULL, NULL},
- {2666, 2666, 2666, 8002, 0, 0, 0, 0, 0, 0} },
-
- {TONE_GERMAN_GASSENBESETZT,
- {DATA_GA, DATA_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_GA, SIZE_S, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {2000, 2000, 0, 0, 0, 0, 0, 0, 0, 0} },
-
- {TONE_GERMAN_AUFSCHALTTON,
- {DATA_GO, DATA_S, DATA_GO, DATA_S, NULL, NULL, NULL, NULL, NULL, NULL},
- {SIZE_GO, SIZE_S, SIZE_GO, SIZE_S, NULL, NULL, NULL, NULL, NULL, NULL},
- {1000, 5000, 1000, 17000, 0, 0, 0, 0, 0, 0} },
-
- {0,
- {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
- {0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
-};
-
-/******************
- * copy tone data *
- ******************/
-
-/* an sk_buff is generated from the number of samples needed.
- * the count will be changed and may begin from 0 each pattern period.
- * the clue is to precalculate the pointers and legths to use only one
- * memcpy per function call, or two memcpy if the tone sequence changes.
- *
- * pattern - the type of the pattern
- * count - the sample from the beginning of the pattern (phase)
- * len - the number of bytes
- *
- * return - the sk_buff with the sample
- *
- * if tones has finished (e.g. knocking tone), dsp->tones is turned off
- */
-void dsp_tone_copy(struct dsp *dsp, u8 *data, int len)
-{
- int index, count, start, num;
- struct pattern *pat;
- struct dsp_tone *tone = &dsp->tone;
-
- /* if we have no tone, we copy silence */
- if (!tone->tone) {
- memset(data, dsp_silence, len);
- return;
- }
-
- /* process pattern */
- pat = (struct pattern *)tone->pattern;
- /* points to the current pattern */
- index = tone->index; /* gives current sequence index */
- count = tone->count; /* gives current sample */
-
- /* copy sample */
- while (len) {
- /* find sample to start with */
- while (42) {
- /* wrap around */
- if (!pat->seq[index]) {
- count = 0;
- index = 0;
- }
- /* check if we are currently playing this tone */
- if (count < pat->seq[index])
- break;
- if (dsp_debug & DEBUG_DSP_TONE)
- printk(KERN_DEBUG "%s: reaching next sequence "
- "(index=%d)\n", __func__, index);
- count -= pat->seq[index];
- index++;
- }
- /* calculate start and number of samples */
- start = count % (*(pat->siz[index]));
- num = len;
- if (num + count > pat->seq[index])
- num = pat->seq[index] - count;
- if (num + start > (*(pat->siz[index])))
- num = (*(pat->siz[index])) - start;
- /* copy memory */
- memcpy(data, pat->data[index] + start, num);
- /* reduce length */
- data += num;
- count += num;
- len -= num;
- }
- tone->index = index;
- tone->count = count;
-
- /* return sk_buff */
- return;
-}
-
-
-/*******************************
- * send HW message to hfc card *
- *******************************/
-
-static void
-dsp_tone_hw_message(struct dsp *dsp, u8 *sample, int len)
-{
- struct sk_buff *nskb;
-
- /* unlocking is not required, because we don't expect a response */
- nskb = _alloc_mISDN_skb(PH_CONTROL_REQ,
- (len) ? HFC_SPL_LOOP_ON : HFC_SPL_LOOP_OFF, len, sample,
- GFP_ATOMIC);
- if (nskb) {
- if (dsp->ch.peer) {
- if (dsp->ch.recv(dsp->ch.peer, nskb))
- dev_kfree_skb(nskb);
- } else
- dev_kfree_skb(nskb);
- }
-}
-
-
-/*****************
- * timer expires *
- *****************/
-void
-dsp_tone_timeout(void *arg)
-{
- struct dsp *dsp = arg;
- struct dsp_tone *tone = &dsp->tone;
- struct pattern *pat = (struct pattern *)tone->pattern;
- int index = tone->index;
-
- if (!tone->tone)
- return;
-
- index++;
- if (!pat->seq[index])
- index = 0;
- tone->index = index;
-
- /* set next tone */
- if (pat->data[index] == DATA_S)
- dsp_tone_hw_message(dsp, NULL, 0);
- else
- dsp_tone_hw_message(dsp, pat->data[index], *(pat->siz[index]));
- /* set timer */
- init_timer(&tone->tl);
- tone->tl.expires = jiffies + (pat->seq[index] * HZ) / 8000;
- add_timer(&tone->tl);
-}
-
-
-/********************
- * set/release tone *
- ********************/
-
-/*
- * tones are relaized by streaming or by special loop commands if supported
- * by hardware. when hardware is used, the patterns will be controlled by
- * timers.
- */
-int
-dsp_tone(struct dsp *dsp, int tone)
-{
- struct pattern *pat;
- int i;
- struct dsp_tone *tonet = &dsp->tone;
-
- tonet->software = 0;
- tonet->hardware = 0;
-
- /* we turn off the tone */
- if (!tone) {
- if (dsp->features.hfc_loops && timer_pending(&tonet->tl))
- del_timer(&tonet->tl);
- if (dsp->features.hfc_loops)
- dsp_tone_hw_message(dsp, NULL, 0);
- tonet->tone = 0;
- return 0;
- }
-
- pat = NULL;
- i = 0;
- while (pattern[i].tone) {
- if (pattern[i].tone == tone) {
- pat = &pattern[i];
- break;
- }
- i++;
- }
- if (!pat) {
- printk(KERN_WARNING "dsp: given tone 0x%x is invalid\n", tone);
- return -EINVAL;
- }
- if (dsp_debug & DEBUG_DSP_TONE)
- printk(KERN_DEBUG "%s: now starting tone %d (index=%d)\n",
- __func__, tone, 0);
- tonet->tone = tone;
- tonet->pattern = pat;
- tonet->index = 0;
- tonet->count = 0;
-
- if (dsp->features.hfc_loops) {
- tonet->hardware = 1;
- /* set first tone */
- dsp_tone_hw_message(dsp, pat->data[0], *(pat->siz[0]));
- /* set timer */
- if (timer_pending(&tonet->tl))
- del_timer(&tonet->tl);
- init_timer(&tonet->tl);
- tonet->tl.expires = jiffies + (pat->seq[0] * HZ) / 8000;
- add_timer(&tonet->tl);
- } else {
- tonet->software = 1;
- }
-
- return 0;
-}
generated by cgit (git 2.34.1) at 2025-03-12 21:29:00 +0000