diff options
Diffstat (limited to 'sys/dev/pci/bktr/bktr_audio.c')
| -rw-r--r-- | sys/dev/pci/bktr/bktr_audio.c | 634 |
1 files changed, 634 insertions, 0 deletions
diff --git a/sys/dev/pci/bktr/bktr_audio.c b/sys/dev/pci/bktr/bktr_audio.c new file mode 100644 index 00000000000..1f437c4e527 --- /dev/null +++ b/sys/dev/pci/bktr/bktr_audio.c @@ -0,0 +1,634 @@ +/* $OpenBSD: bktr_audio.c,v 1.1 2001/03/28 03:27:09 fgsch Exp $ */ +/* $FreeBSD: src/sys/dev/bktr/bktr_audio.c,v 1.8 2000/10/31 13:09:56 roger Exp $ */ +/* + * This is part of the Driver for Video Capture Cards (Frame grabbers) + * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879 + * chipset. + * Copyright Roger Hardiman and Amancio Hasty. + * + * bktr_audio : This deals with controlling the audio on TV cards, + * controlling the Audio Multiplexer (audio source selector). + * controlling any MSP34xx stereo audio decoders. + * controlling any DPL35xx dolby surroud sound audio decoders. + * initialising TDA98xx audio devices. + * + */ + +/* + * 1. Redistributions of source code must retain the + * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Amancio Hasty and + * Roger Hardiman + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/vnode.h> + +#ifdef __FreeBSD__ + +#if (__FreeBSD_version < 500000) +#include <machine/clock.h> /* for DELAY */ +#endif + +#include <pci/pcivar.h> + +#if (__FreeBSD_version >=300000) +#include <machine/bus_memio.h> /* for bus space */ +#include <machine/bus.h> +#include <sys/bus.h> +#endif +#endif + +#if defined(__NetBSD__) || defined(__OpenBSD__) +#include <sys/proc.h> +#include <dev/ic/bt8xx.h> /* NetBSD location of .h files */ +#include <dev/pci/bktr/bktr_reg.h> +#include <dev/pci/bktr/bktr_core.h> +#include <dev/pci/bktr/bktr_tuner.h> +#include <dev/pci/bktr/bktr_card.h> +#include <dev/pci/bktr/bktr_audio.h> +#else +#include <machine/ioctl_meteor.h> /* Traditional location of .h files */ +#include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ +#include <dev/bktr/bktr_reg.h> +#include <dev/bktr/bktr_core.h> +#include <dev/bktr/bktr_tuner.h> +#include <dev/bktr/bktr_card.h> +#include <dev/bktr/bktr_audio.h> +#endif + +/* + * Prototypes for the GV_BCTV specific functions. + */ +void set_bctv_audio( bktr_ptr_t bktr ); +void bctv_gpio_write( bktr_ptr_t bktr, int port, int val ); +/*int bctv_gpio_read( bktr_ptr_t bktr, int port );*/ /* Not used */ + + + +/* + * init_audio_devices + * Reset any MSP34xx or TDA98xx audio devices. + */ +void init_audio_devices( bktr_ptr_t bktr ) { + + /* enable stereo if appropriate on TDA audio chip */ + if ( bktr->card.dbx ) + init_BTSC( bktr ); + + /* reset the MSP34xx stereo audio chip */ + if ( bktr->card.msp3400c ) + msp_dpl_reset( bktr, bktr->msp_addr ); + + /* reset the DPL35xx dolby audio chip */ + if ( bktr->card.dpl3518a ) + msp_dpl_reset( bktr, bktr->dpl_addr ); + +} + + +/* + * + */ +#define AUDIOMUX_DISCOVER_NOT +int +set_audio( bktr_ptr_t bktr, int cmd ) +{ + u_long temp; + volatile u_char idx; + +#if defined( AUDIOMUX_DISCOVER ) + if ( cmd >= 200 ) + cmd -= 200; + else +#endif /* AUDIOMUX_DISCOVER */ + + /* check for existance of audio MUXes */ + if ( !bktr->card.audiomuxs[ 4 ] ) + return( -1 ); + + switch (cmd) { + case AUDIO_TUNER: +#ifdef BKTR_REVERSEMUTE + bktr->audio_mux_select = 3; +#else + bktr->audio_mux_select = 0; +#endif + + if (bktr->reverse_mute ) + bktr->audio_mux_select = 0; + else + bktr->audio_mux_select = 3; + + break; + case AUDIO_EXTERN: + bktr->audio_mux_select = 1; + break; + case AUDIO_INTERN: + bktr->audio_mux_select = 2; + break; + case AUDIO_MUTE: + bktr->audio_mute_state = TRUE; /* set mute */ + break; + case AUDIO_UNMUTE: + bktr->audio_mute_state = FALSE; /* clear mute */ + break; + default: + printf("%s: audio cmd error %02x\n", bktr_name(bktr), + cmd); + return( -1 ); + } + + + /* Most cards have a simple audio multiplexer to select the + * audio source. The I/O_GV card has a more advanced multiplexer + * and requires special handling. + */ + if ( bktr->bt848_card == CARD_IO_GV ) { + set_bctv_audio( bktr ); + return( 0 ); + } + + /* Proceed with the simpler audio multiplexer code for the majority + * of Bt848 cards. + */ + + /* + * Leave the upper bits of the GPIO port alone in case they control + * something like the dbx or teletext chips. This doesn't guarantee + * success, but follows the rule of least astonishment. + */ + + if ( bktr->audio_mute_state == TRUE ) { +#ifdef BKTR_REVERSEMUTE + idx = 0; +#else + idx = 3; +#endif + + if (bktr->reverse_mute ) + idx = 3; + else + idx = 0; + + } + else + idx = bktr->audio_mux_select; + + + temp = INL(bktr, BKTR_GPIO_DATA) & ~bktr->card.gpio_mux_bits; +#if defined( AUDIOMUX_DISCOVER ) + OUTL(bktr, BKTR_GPIO_DATA, temp | (cmd & 0xff)); + printf("%s: cmd: %d audio mux %x temp %x \n", bktr_name(bktr), + cmd, bktr->card.audiomuxs[ idx ], temp ); +#else + OUTL(bktr, BKTR_GPIO_DATA, temp | bktr->card.audiomuxs[ idx ]); +#endif /* AUDIOMUX_DISCOVER */ + + + + /* Some new Hauppauge cards do not have an audio mux */ + /* Instead we use the MSP34xx chip to select TV audio, Line-In */ + /* FM Radio and Mute */ + /* Examples of this are the Hauppauge 44xxx MSP34xx models */ + /* It is ok to drive both the mux and the MSP34xx chip. */ + /* If there is no mux, the MSP does the switching of the audio source */ + /* If there is a mux, it does the switching of the audio source */ + + if ((bktr->card.msp3400c) && (bktr->audio_mux_present == 0)) { + + if (bktr->audio_mute_state == TRUE ) { + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x0000); /* volume to MUTE */ + } else { + if(bktr->audio_mux_select == 0) { /* TV Tuner */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ + if (bktr->msp_source_selected != 0) msp_autodetect(bktr); /* setup TV audio mode */ + bktr->msp_source_selected = 0; + } + if(bktr->audio_mux_select == 1) { /* Line In */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0000); /* DSP In = SC1_IN_L/R */ + bktr->msp_source_selected = 1; + } + + if(bktr->audio_mux_select == 2) { /* FM Radio */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0200); /* DSP In = SC2_IN_L/R */ + bktr->msp_source_selected = 2; + } + } + } + + + return( 0 ); +} + + +/* + * + */ +void +temp_mute( bktr_ptr_t bktr, int flag ) +{ + static int muteState = FALSE; + + if ( flag == TRUE ) { + muteState = bktr->audio_mute_state; + set_audio( bktr, AUDIO_MUTE ); /* prevent 'click' */ + } + else { + tsleep( BKTR_SLEEP, PZERO, "tuning", hz/8 ); + if ( muteState == FALSE ) + set_audio( bktr, AUDIO_UNMUTE ); + } +} + +/* address of BTSC/SAP decoder chip */ +#define TDA9850_WADDR 0xb6 +#define TDA9850_RADDR 0xb7 + + +/* registers in the TDA9850 BTSC/dbx chip */ +#define CON1ADDR 0x04 +#define CON2ADDR 0x05 +#define CON3ADDR 0x06 +#define CON4ADDR 0x07 +#define ALI1ADDR 0x08 +#define ALI2ADDR 0x09 +#define ALI3ADDR 0x0a + +/* + * initialise the dbx chip + * taken from the Linux bttv driver TDA9850 initialisation code + */ +void +init_BTSC( bktr_ptr_t bktr ) +{ + i2cWrite(bktr, TDA9850_WADDR, CON1ADDR, 0x08); /* noise threshold st */ + i2cWrite(bktr, TDA9850_WADDR, CON2ADDR, 0x08); /* noise threshold sap */ + i2cWrite(bktr, TDA9850_WADDR, CON3ADDR, 0x40); /* stereo mode */ + i2cWrite(bktr, TDA9850_WADDR, CON4ADDR, 0x07); /* 0 dB input gain? */ + i2cWrite(bktr, TDA9850_WADDR, ALI1ADDR, 0x10); /* wideband alignment? */ + i2cWrite(bktr, TDA9850_WADDR, ALI2ADDR, 0x10); /* spectral alignment? */ + i2cWrite(bktr, TDA9850_WADDR, ALI3ADDR, 0x03); +} + +/* + * setup the dbx chip + * XXX FIXME: alot of work to be done here, this merely unmutes it. + */ +int +set_BTSC( bktr_ptr_t bktr, int control ) +{ + return( i2cWrite( bktr, TDA9850_WADDR, CON3ADDR, control ) ); +} + +/* + * CARD_GV_BCTV specific functions. + */ + +#define BCTV_AUDIO_MAIN 0x10 /* main audio program */ +#define BCTV_AUDIO_SUB 0x20 /* sub audio program */ +#define BCTV_AUDIO_BOTH 0x30 /* main(L) + sub(R) program */ + +#define BCTV_GPIO_REG0 1 +#define BCTV_GPIO_REG1 3 + +#define BCTV_GR0_AUDIO_MODE 3 +#define BCTV_GR0_AUDIO_MAIN 0 /* main program */ +#define BCTV_GR0_AUDIO_SUB 3 /* sub program */ +#define BCTV_GR0_AUDIO_BOTH 1 /* main(L) + sub(R) */ +#define BCTV_GR0_AUDIO_MUTE 4 /* audio mute */ +#define BCTV_GR0_AUDIO_MONO 8 /* force mono */ + +void +set_bctv_audio( bktr_ptr_t bktr ) +{ + int data; + + switch (bktr->audio_mux_select) { + case 1: /* external */ + case 2: /* internal */ + bctv_gpio_write(bktr, BCTV_GPIO_REG1, 0); + break; + default: /* tuner */ + bctv_gpio_write(bktr, BCTV_GPIO_REG1, 1); + break; + } +/* switch (bktr->audio_sap_select) { */ + switch (BCTV_AUDIO_BOTH) { + case BCTV_AUDIO_SUB: + data = BCTV_GR0_AUDIO_SUB; + break; + case BCTV_AUDIO_BOTH: + data = BCTV_GR0_AUDIO_BOTH; + break; + case BCTV_AUDIO_MAIN: + default: + data = BCTV_GR0_AUDIO_MAIN; + break; + } + if (bktr->audio_mute_state == TRUE) + data |= BCTV_GR0_AUDIO_MUTE; + + bctv_gpio_write(bktr, BCTV_GPIO_REG0, data); + + return; +} + +/* gpio_data bit assignment */ +#define BCTV_GPIO_ADDR_MASK 0x000300 +#define BCTV_GPIO_WE 0x000400 +#define BCTV_GPIO_OE 0x000800 +#define BCTV_GPIO_VAL_MASK 0x00f000 + +#define BCTV_GPIO_PORT_MASK 3 +#define BCTV_GPIO_ADDR_SHIFT 8 +#define BCTV_GPIO_VAL_SHIFT 12 + +/* gpio_out_en value for read/write */ +#define BCTV_GPIO_OUT_RMASK 0x000f00 +#define BCTV_GPIO_OUT_WMASK 0x00ff00 + +#define BCTV_BITS 100 + +void +bctv_gpio_write( bktr_ptr_t bktr, int port, int val ) +{ + u_long data, outbits; + + port &= BCTV_GPIO_PORT_MASK; + switch (port) { + case 1: + case 3: + data = ((val << BCTV_GPIO_VAL_SHIFT) & BCTV_GPIO_VAL_MASK) | + ((port << BCTV_GPIO_ADDR_SHIFT) & BCTV_GPIO_ADDR_MASK) | + BCTV_GPIO_WE | BCTV_GPIO_OE; + outbits = BCTV_GPIO_OUT_WMASK; + break; + default: + return; + } + OUTL(bktr, BKTR_GPIO_OUT_EN, 0); + OUTL(bktr, BKTR_GPIO_DATA, data); + OUTL(bktr, BKTR_GPIO_OUT_EN, outbits); + DELAY(BCTV_BITS); + OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV_GPIO_WE); + DELAY(BCTV_BITS); + OUTL(bktr, BKTR_GPIO_DATA, data); + DELAY(BCTV_BITS); + OUTL(bktr, BKTR_GPIO_DATA, ~0); + OUTL(bktr, BKTR_GPIO_OUT_EN, 0); +} + +/* Not yet used +int +bctv_gpio_read( bktr_ptr_t bktr, int port ) +{ + u_long data, outbits, ret; + + port &= BCTV_GPIO_PORT_MASK; + switch (port) { + case 1: + case 3: + data = ((port << BCTV_GPIO_ADDR_SHIFT) & BCTV_GPIO_ADDR_MASK) | + BCTV_GPIO_WE | BCTV_GPIO_OE; + outbits = BCTV_GPIO_OUT_RMASK; + break; + default: + return( -1 ); + } + OUTL(bktr, BKTR_GPIO_OUT_EN, 0); + OUTL(bktr, BKTR_GPIO_DATA, data); + OUTL(bktr, BKTR_GPIO_OUT_EN, outbits); + DELAY(BCTV_BITS); + OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV_GPIO_OE); + DELAY(BCTV_BITS); + ret = INL(bktr, BKTR_GPIO_DATA); + DELAY(BCTV_BITS); + OUTL(bktr, BKTR_GPIO_DATA, data); + DELAY(BCTV_BITS); + OUTL(bktr, BKTR_GPIO_DATA, ~0); + OUTL(bktr, BKTR_GPIO_OUT_EN, 0); + return( (ret & BCTV_GPIO_VAL_MASK) >> BCTV_GPIO_VAL_SHIFT ); +} +*/ + +/* + * setup the MSP34xx Stereo Audio Chip + * This uses the Auto Configuration Option on MSP3410D and MSP3415D chips + * and DBX mode selection for MSP3430G chips. + * For MSP3400C support, the full programming sequence is required and is + * not yet supported. + */ + +/* Read the MSP version string */ +void msp_read_id( bktr_ptr_t bktr ){ + int rev1=0, rev2=0; + rev1 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001e); + rev2 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001f); + + sprintf(bktr->msp_version_string, "34%02d%c-%c%d", + (rev2>>8)&0xff, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f); + +} + + +/* Configure the MSP chip to Auto-detect the audio format. + * For the MSP3430G, we use fast autodetect mode + * For the MSP3410/3415 there are two schemes for this + * a) Fast autodetection - the chip is put into autodetect mode, and the function + * returns immediatly. This works in most cases and is the Default Mode. + * b) Slow mode. The function sets the MSP3410/3415 chip, then waits for feedback from + * the chip and re-programs it if needed. + */ +void msp_autodetect( bktr_ptr_t bktr ) { + int auto_detect, loops; + int stereo; + + /* MSP3430G - countries with mono and DBX stereo */ + if (strncmp("3430G", bktr->msp_version_string, 5) == 0){ + + msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0030,0x2003);/* Enable Auto format detection */ + msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0020);/* Standard Select Reg. = BTSC-Stereo*/ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000E,0x2403);/* darned if I know */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0320);/* Source select = (St or A) */ + /* & Ch. Matrix = St */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ + } + + + /* MSP3415D SPECIAL CASE Use the Tuner's Mono audio ouput for the MSP */ + /* (for Hauppauge 44xxx card with Tuner Type 0x2a) */ + else if ( ( (strncmp("3415D", bktr->msp_version_string, 5) == 0) + &&(bktr->msp_use_mono_source == 1) + ) + || (bktr->slow_msp_audio == 2) ){ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0100); /* DSP In = MONO IN */ + } + + + /* MSP3410/MSP3415 - countries with mono, stereo using 2 FM channels and NICAM */ + /* FAST sound scheme */ + else if (bktr->slow_msp_audio == 0) { + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Spkr Source = default(FM/AM) */ + msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */ + msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */ + } + + + /* MSP3410/MSP3415 - European Countries where the fast MSP3410/3415 programming fails */ + /* SLOW sound scheme */ + else if ( bktr->slow_msp_audio == 1) { + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ + msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */ + + /* wait for 0.5s max for terrestrial sound autodetection */ + loops = 10; + do { + DELAY(100000); + auto_detect = msp_dpl_read(bktr, bktr->msp_addr, 0x10, 0x007e); + loops++; + } while (auto_detect > 0xff && loops < 50); + if (bootverbose)printf ("%s: Result of autodetect after %dms: %d\n", + bktr_name(bktr), loops*10, auto_detect); + + /* Now set the audio baseband processing */ + switch (auto_detect) { + case 0: /* no TV sound standard detected */ + break; + case 2: /* M Dual FM */ + break; + case 3: /* B/G Dual FM; German stereo */ + /* Read the stereo detection value from DSP reg 0x0018 */ + DELAY(20000); + stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); + if (bootverbose)printf ("%s: Stereo reg 0x18 a: %d\n", + bktr_name(bktr), stereo); + DELAY(20000); + stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); + if (bootverbose)printf ("%s: Stereo reg 0x18 b: %d\n", + bktr_name(bktr), stereo); + DELAY(20000); + stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); + if (bootverbose)printf ("%s: Stereo reg 0x18 c: %d\n", + bktr_name(bktr), stereo); + if (stereo > 0x0100 && stereo < 0x8000) { /* Seems to be stereo */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker set stereo*/ + /* + set spatial effect strength to 50% enlargement + set spatial effect mode b, stereo basewidth enlargment only + */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f28); + } else if (stereo > 0x8000) { /* bilingual mode */ + if (bootverbose) printf ("%s: Bilingual mode detected\n", + bktr_name(bktr)); + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Loudspeaker */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x0000);/* all spatial effects off */ + } else { /* must be mono */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0030);/* Loudspeaker */ + /* + set spatial effect strength to 50% enlargement + set spatial effect mode a, stereo basewidth enlargment + and pseudo stereo effect with automatic high-pass filter + */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f08); + } +#if 0 + /* The reset value for Channel matrix mode is FM/AM and SOUNDA/LEFT */ + /* We would like STEREO instead val: 0x0020 */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0009,0x0020);/* Headphone */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000a,0x0020);/* SCART1 */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0041,0x0020);/* SCART2 */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000b,0x0020);/* I2S */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000c,0x0020);/* Quasi-Peak Detector Source */ + msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000e,0x0001); +#endif + break; + case 8: /* B/G FM NICAM */ + msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */ + break; + case 9: /* L_AM NICAM or D/K*/ + case 10: /* i-FM NICAM */ + break; + default: + if (bootverbose) printf ("%s: Unknown autodetection result value: %d\n", + bktr_name(bktr), auto_detect); + } + + } + + + /* uncomment the following line to enable the MSP34xx 1Khz Tone Generator */ + /* turn your speaker volume down low before trying this */ + /* msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0014, 0x7f40); */ +} + +/* Read the DPL version string */ +void dpl_read_id( bktr_ptr_t bktr ){ + int rev1=0, rev2=0; + rev1 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001e); + rev2 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001f); + + sprintf(bktr->dpl_version_string, "34%02d%c-%c%d", + ((rev2>>8)&0xff)-1, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f); +} + +/* Configure the DPL chip to Auto-detect the audio format */ +void dpl_autodetect( bktr_ptr_t bktr ) { + + /* The following are empiric values tried from the DPL35xx data sheet */ + msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x000c,0x0320); /* quasi peak detector source dolby + lr 0x03xx; quasi peak detector matrix + stereo 0xXX20 */ + msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0040,0x0060); /* Surround decoder mode; + ADAPTIVE/3D-PANORAMA, that means two + speakers and no center speaker, all + channels L/R/C/S mixed to L and R */ + msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0041,0x0620); /* surround source matrix;I2S2/STEREO*/ + msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0042,0x1F00); /* surround delay 31ms max */ + msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0043,0x0000); /* automatic surround input balance */ + msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0044,0x4000); /* surround spatial effect 50% + recommended*/ + msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0045,0x5400); /* surround panorama effect 66% + recommended with PANORAMA mode + in 0x0040 set to panorama */ +} + |