diff options
Diffstat (limited to 'drivers/media/video/cx88/cx88-tvaudio.c')
| -rw-r--r-- | drivers/media/video/cx88/cx88-tvaudio.c | 103 |
1 files changed, 63 insertions, 40 deletions
diff --git a/drivers/media/video/cx88/cx88-tvaudio.c b/drivers/media/video/cx88/cx88-tvaudio.c index f2a9475..46d78b1 100644 --- a/drivers/media/video/cx88/cx88-tvaudio.c +++ b/drivers/media/video/cx88/cx88-tvaudio.c @@ -1,5 +1,5 @@ /* - $Id: cx88-tvaudio.c,v 1.34 2005/03/07 16:10:51 kraxel Exp $ + $Id: cx88-tvaudio.c,v 1.36 2005/06/05 05:53:45 mchehab Exp $ cx88x-audio.c - Conexant CX23880/23881 audio downstream driver driver @@ -127,7 +127,8 @@ static void set_audio_start(struct cx88_core *core, cx_write(AUD_VOL_CTL, (1 << 6)); // increase level of input by 12dB - cx_write(AUD_AFE_12DB_EN, 0x0001); +// cx_write(AUD_AFE_12DB_EN, 0x0001); + cx_write(AUD_AFE_12DB_EN, 0x0000); // start programming cx_write(AUD_CTL, 0x0000); @@ -143,9 +144,15 @@ static void set_audio_finish(struct cx88_core *core) u32 volume; if (cx88_boards[core->board].blackbird) { + // sets sound input from external adc + cx_set(AUD_CTL, EN_I2SIN_ENABLE); + //cx_write(AUD_I2SINPUTCNTL, 0); + cx_write(AUD_I2SINPUTCNTL, 4); + cx_write(AUD_BAUDRATE, 1); // 'pass-thru mode': this enables the i2s output to the mpeg encoder - cx_set(AUD_CTL, 0x2000); + cx_set(AUD_CTL, EN_I2SOUT_ENABLE); cx_write(AUD_I2SOUTPUTCNTL, 1); + cx_write(AUD_I2SCNTL, 0); //cx_write(AUD_APB_IN_RATE_ADJ, 0); } @@ -707,50 +714,65 @@ static void set_audio_standard_EIAJ(struct cx88_core *core) set_audio_finish(core); } -static void set_audio_standard_FM(struct cx88_core *core) +static void set_audio_standard_FM(struct cx88_core *core, enum cx88_deemph_type deemph) { -#if 0 /* FIXME */ - switch (dev->audio_properties.FM_deemphasis) - { - case WW_FM_DEEMPH_50: - //Set De-emphasis filter coefficients for 50 usec - cx_write(AUD_DEEMPH0_G0, 0x0C45); - cx_write(AUD_DEEMPH0_A0, 0x6262); - cx_write(AUD_DEEMPH0_B0, 0x1C29); - cx_write(AUD_DEEMPH0_A1, 0x3FC66); - cx_write(AUD_DEEMPH0_B1, 0x399A); - - cx_write(AUD_DEEMPH1_G0, 0x0D80); - cx_write(AUD_DEEMPH1_A0, 0x6262); - cx_write(AUD_DEEMPH1_B0, 0x1C29); - cx_write(AUD_DEEMPH1_A1, 0x3FC66); - cx_write(AUD_DEEMPH1_B1, 0x399A); + static const struct rlist fm_deemph_50[] = { + { AUD_DEEMPH0_G0, 0x0C45 }, + { AUD_DEEMPH0_A0, 0x6262 }, + { AUD_DEEMPH0_B0, 0x1C29 }, + { AUD_DEEMPH0_A1, 0x3FC66}, + { AUD_DEEMPH0_B1, 0x399A }, + + { AUD_DEEMPH1_G0, 0x0D80 }, + { AUD_DEEMPH1_A0, 0x6262 }, + { AUD_DEEMPH1_B0, 0x1C29 }, + { AUD_DEEMPH1_A1, 0x3FC66}, + { AUD_DEEMPH1_B1, 0x399A}, + + { AUD_POLYPH80SCALEFAC, 0x0003}, + { /* end of list */ }, + }; + static const struct rlist fm_deemph_75[] = { + { AUD_DEEMPH0_G0, 0x091B }, + { AUD_DEEMPH0_A0, 0x6B68 }, + { AUD_DEEMPH0_B0, 0x11EC }, + { AUD_DEEMPH0_A1, 0x3FC66}, + { AUD_DEEMPH0_B1, 0x399A }, + + { AUD_DEEMPH1_G0, 0x0AA0 }, + { AUD_DEEMPH1_A0, 0x6B68 }, + { AUD_DEEMPH1_B0, 0x11EC }, + { AUD_DEEMPH1_A1, 0x3FC66}, + { AUD_DEEMPH1_B1, 0x399A}, + + { AUD_POLYPH80SCALEFAC, 0x0003}, + { /* end of list */ }, + }; - break; + /* It is enough to leave default values? */ + static const struct rlist fm_no_deemph[] = { - case WW_FM_DEEMPH_75: - //Set De-emphasis filter coefficients for 75 usec - cx_write(AUD_DEEMPH0_G0, 0x91B ); - cx_write(AUD_DEEMPH0_A0, 0x6B68); - cx_write(AUD_DEEMPH0_B0, 0x11EC); - cx_write(AUD_DEEMPH0_A1, 0x3FC66); - cx_write(AUD_DEEMPH0_B1, 0x399A); + { AUD_POLYPH80SCALEFAC, 0x0003}, + { /* end of list */ }, + }; - cx_write(AUD_DEEMPH1_G0, 0xAA0 ); - cx_write(AUD_DEEMPH1_A0, 0x6B68); - cx_write(AUD_DEEMPH1_B0, 0x11EC); - cx_write(AUD_DEEMPH1_A1, 0x3FC66); - cx_write(AUD_DEEMPH1_B1, 0x399A); + dprintk("%s (status: unknown)\n",__FUNCTION__); + set_audio_start(core, 0x0020, EN_FMRADIO_AUTO_STEREO); + switch (deemph) + { + case FM_NO_DEEMPH: + set_audio_registers(core, fm_no_deemph); break; - } -#endif - dprintk("%s (status: unknown)\n",__FUNCTION__); - set_audio_start(core, 0x0020, EN_FMRADIO_AUTO_STEREO); + case FM_DEEMPH_50: + set_audio_registers(core, fm_deemph_50); + break; - // AB: 10/2/01: this register is not being reset appropriately on occasion. - cx_write(AUD_POLYPH80SCALEFAC,3); + case FM_DEEMPH_75: + set_audio_registers(core, fm_deemph_75); + break; + } set_audio_finish(core); } @@ -778,7 +800,7 @@ void cx88_set_tvaudio(struct cx88_core *core) set_audio_standard_EIAJ(core); break; case WW_FM: - set_audio_standard_FM(core); + set_audio_standard_FM(core,FM_NO_DEEMPH); break; case WW_SYSTEM_L_AM: set_audio_standard_NICAM_L(core, 1); @@ -1029,4 +1051,5 @@ EXPORT_SYMBOL(cx88_audio_thread); * Local variables: * c-basic-offset: 8 * End: + * kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off */ |
